JP2531549Y2 - Pressure vessel lid opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lid structure for a pressure vessel and a switching device therefor.

[Conventional technology]

As is well known, the lids of various pressure vessels such as autoclaves for sterilization and retort equipment for food processing are required to maintain strength and maintain airtightness, so that a complicated beam structure is provided inside or a thick reinforcing member is incorporated. It is composed of an integral structure with considerable weight. Examples of such lids include a clamping rod that extends in the radial direction and a rotary shaft that opens and closes the front or side of the pressure vessel, and a lid that slides vertically to open and close. There is something that I did. However, in each case, the moving space for opening and closing the lid is large, and the position occupied by the lid when the lid is opened is limited, so that various restrictions are imposed when setting the pressure vessel.

[Problems to be solved by the invention]

An object of the present invention is to provide a pressure vessel lid opening / closing device which has a small moving space and can perform a smooth opening / closing operation.

[Means for solving the problem]

That is, the present invention provides a lid assembly having a large number of beam members arranged on one side of a flexible thin plate member in a closed position A for closing the opening of the pressure vessel and an open position for opening the opening. B
And a hook is provided on the end face of the beam member, and the hook is engaged with an adjacent roller of the transfer roller chain, and the transfer roller chain is connected to a guide roller and a drive roller. It is characterized by being stretched via sprockets.

[Action]

According to the above-described configuration, by providing the guide roller and the driving sprocket, the engagement portion between the transfer roller chain and the sprocket is set to be long, so that the lid assembly moves between the closed position A and the open position B. When moving, move smoothly.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

A pressure vessel (1) as an autoclave main body has a sterilization chamber (2) inside and an opening (3) for taking an object to be sterilized into and out of the sterilization chamber (2). A lid assembly (4) is provided so as to cover the part (3). As shown in FIGS. 4 and 5, the lid assembly (4) is composed of a flexible thin plate member (5) (stainless steel plate in the embodiment) and a large number of beam members (6) (square in the embodiment) provided on one side thereof. Pipe ropes) are juxtaposed, and a buffer (7) (a rubber plate in the embodiment) is attached between opposing side surfaces of these beam members (6).

A hook (8) is fixed to an end face of the beam member (6) by an appropriate means (for example, welding), and a tip portion (8a) of the hook (8) is fixed to a roller (9) of a transfer roller chain (9). It is configured to engage between 9a) and (9a).
The thin plate member (5) and the beam member (6) are joined by appropriate means (for example, screwing means using bolts and nuts), and the adjacent beam members are in a free state without being fixed. And

In the lid assembly (4), the surface on which the beam member (6) is not provided is disposed so as to face the opening (3) of the pressure vessel (1). The opening (3) is opened and closed by reciprocating between an opening position B (a top wall in the embodiment) for opening the opening (3).

A packing (11) is fitted in a groove (10) (see FIG. 1) recessed around the opening (3), and a back surface of the packing (11) is further inserted into the groove (10). One end of a pipe (12) for supplying a pressurized gas for further pressing is opened (see FIG. 2).

The guide member (13) serves as a guide when the lid assembly (4) is slid and stored, and extends between the closed position A and the open position B with the bent portion (131) interposed therebetween. is there.
In this embodiment, the extension (132) of the guide member (13) is used.
Is installed parallel to the top wall (14) of the pressure vessel (1), so that the lid assembly (4) moves away from the opening (3), and as shown in FIG. It retracts to a predetermined position on the part (14).

The assembly (4) in the guide member (13).
The peripheral portion (133) facing the closed position (A) is reinforced with a predetermined strength to receive the pressing force of the packing (11) (see FIG. 2).

As shown in FIG. 3, the transfer roller chain (9) is movably mounted on an inner peripheral portion of the guide member (13) by an appropriate means, and is provided near a bent portion (131). It is in a state of being engaged with the driving sprocket (16) via the individual guide rollers (15), (15).
The driving sprocket (16) is connected to the gear motor (17) by predetermined connecting means (for example, a toothed belt). The gear motor (17) is movably mounted at a predetermined position on the top wall (14) of the pressure vessel (1).

With the above configuration, to open and close the lid assembly (4),
The transfer sprocket (16) is rotated by the gear motor (17) to drive the transfer roller chain (9). Since the hook (8) provided on the beam member (6) of the lid assembly (4) is engaged between the rollers (9a) and (9a) of the transfer roller chain (9), the lid assembly (4) is engaged. ) Is a pressure vessel (1)
Slides from the open position B on the top wall portion (14), and stops at the closed position A where the front surface faces the opening portion (3).
In the bent portion (131) in the middle of the slide, since the two guide rollers (15) are interposed, the engaging portion between the drive sprocket (16) and the transfer roller chain (9) is set to be long. As a result, the driving force is reliably transmitted to the transfer roller chain (9), and the lid assembly (4) can move smoothly. Further, since the adjacent beam members of the lid assembly (4) are not directly connected to each other, the circumferential gap between the adjacent beam members is increased, so that the lid assembly (4) can be easily formed. Can bend and move.

The lid assembly (4) stopped at the closed position (A) seals the opening (3) by the packing (9) projecting from the back by receiving a supply of pressurized gas from the back surface. Also, by releasing the pressing operation of the packing (9), the lid assembly (4) is
The opening (3) can be opened by sliding upward. In addition, when the beam members come into contact with each other at the time of starting and stopping the lid assembly (4), a metallic noise is generated, and the collision surface is worn away. ) Does not occur.

[Effect of the invention]

As described above, the present invention forms a lid assembly with a thin plate member and a beam member, provides a hook on an end surface of the beam member, and engages the hook between rollers of a transfer roller chain.
Since the transfer roller chain is stretched through the guide roller and the driving sprocket, the moving space of the lid assembly can be reduced. Therefore, the restriction at the time of installing the pressure vessel is greatly eased, and the excess space can be effectively used.

In addition, since the number of bite portions between the drive sprocket and the transfer roller chain can be set, when opening and closing the lid assembly,
In particular, the shock at the time of starting and stopping can be minimized, and the sliding movement of the lid assembly can be smoothly performed. Therefore, the life of the driving sprocket, the transfer roller chain, and the lid assembly can be increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a lid assembly of the present invention. FIG. 1 is a partial side view of FIG. 1 showing the moving procedure of FIG. 1, FIG. 4 is a partially enlarged front view of the lid assembly, and FIG. 5 is a side view of FIG. A: Closed position, B: Open position (1) Pressure vessel, (4) Lid assembly (5) Thin plate member, (6) Beam member (9) Transfer roller Chain (9a): Roller, (15) Guide roller (16): Drive sprocket

Claims (1)

(57) [Scope of request for utility model registration] 1. A lid assembly (4) comprising a plurality of beam members (6) juxtaposed on one side of a flexible thin plate member (5) and an opening (3) of a pressure vessel (1). A hook (8) is provided on an end face of the beam member (6), and is movably disposed between a closing position A for closing and an opening position B for opening the opening (3). The transfer roller chain (9) is engaged between the adjacent rollers (9a), (9a), and the transfer roller chain (9) is connected to the guide roller (1).
5) A lid opening and closing device for a pressure vessel, which is stretched via a driving sprocket (16).