CN220803099U - Kettle cover locking device of still kettle - Google Patents

Abstract

The utility model discloses a locking device for a kettle cover of an autoclave, and belongs to the technical field of production of autoclaves. The novel kettle mainly comprises a kettle body, wherein a kettle cover is arranged on the kettle body, a limiting plate is fixedly connected to the kettle cover, a jack is formed in the limiting plate, a steam inlet pipeline is communicated with the kettle body, a locking mechanism is arranged at the tail end of the steam inlet pipeline, the locking mechanism comprises a shell, a steam inlet hole matched with the steam inlet pipeline is formed in the bottom of the shell, a telescopic inserted bar is arranged in the shell and corresponds to the jack, a fixing plate is fixedly connected to the bottom of the inserted bar and corresponds to the steam inlet hole, a spring is sleeved on the inserted bar, and the upper end and the lower end of the spring respectively abut against the upper portion of the shell and the fixing plate. According to the utility model, the perforated limiting plate is additionally arranged on the autoclave cover, one side of the autoclave is communicated with the steam inlet pipeline, the locking mechanism matched with the perforated limiting plate is additionally arranged at the tail end of the steam inlet pipeline, the automatic locking of the autoclave cover is realized through the internal air pressure of the autoclave body, the manual operation is not needed, and the locking safety of the autoclave is improved.

Description

Kettle cover locking device of still kettle

Technical Field

The utility model belongs to the technical field of autoclave production, and particularly relates to a locking device for a cover of an autoclave.

Background

The quick-opening pressure container refers to a container with a nested quick-sealing locking device between an end cover or a sealing head and a main body of a container inlet and outlet channel. At present, two types of quick sealing locking devices are commonly used, one type is a mechanical safety interlocking device, such as a tubular pile autoclave safety device disclosed by an authorized bulletin number of CN216941195U and an autoclave composed of the tubular pile autoclave safety device, wherein a safety handle is required to be manually pulled, and a limiting plate on the safety handle cannot ensure that a kettle cover is completely closed in place; and the traditional bolt is simple and practical, but needs manual operation equally, and in the operation process of the autoclave, if an operator forgets to insert the bolt by mistake, the kettle teeth are not meshed in place, and the kettle cover has the risk of flying out of the explosion. And need the manual work to read the manometer numerical value when the pressure release opens the kettle cover and open again, because there is the error in the manometer, even pressure display is zero, still probably has the residual pressure in the cauldron, and the manual work opens the kettle cover again and has the risk this moment.

Another type of automatic safety interlocking system is an autoclave safety interlocking system disclosed in patent publication No. CN104279325A, which is a set of complex electromechanical integrated system device, and the use environment of the autoclave is generally bad, wherein factors such as high temperature and high pressure, alternating load, dust, water accumulation and the like can influence the reliability of the safety interlocking device. The common position switch is a mechanical travel switch, and needs to be in direct contact with the kettle cover and the kettle body, and the high temperature and the frequent operation lead to extremely easy aging and damage failure of the switch element. The hand speed reducer with the built-in backstop mechanism and the electromagnetic actuator is precise in structure, easy to damage and lose efficacy, the running state of the internal mechanism cannot be observed under the condition of not dismantling, once the built-in actuator (locking mechanism) fails, the kettle cover can be freely rotated and opened, and if the bolt is not inserted at the moment, the risk of explosion of the kettle cover can be caused.

Disclosure of utility model

The utility model aims to solve the technical problems that: the utility model provides a overcome prior art's not enough, provides an autoclave lid locking device, and it adds foraminiferous limiting plate on the autoclave lid, and it has the steam inlet pipe to communicate in autoclave one side, and steam inlet pipe end adds the locking mechanical system who cooperatees with foraminiferous limiting plate, realizes the automatic locking of lid through the internal atmospheric pressure of cauldron, need not to drill on the autoclave flange, and does not need manual operation, has improved the security that the autoclave locked greatly.

The kettle cover locking device comprises a kettle body, wherein the kettle body is provided with a kettle cover, a limiting plate is fixedly connected to the kettle cover, a jack is formed in the limiting plate, a steam inlet pipeline is communicated with the kettle body, a locking mechanism is arranged at the tail end of the steam inlet pipeline and comprises a shell, a steam inlet hole matched with the steam inlet pipeline is formed in the bottom of the shell, a telescopic inserted bar is arranged in the shell and corresponds to the jack, a fixing plate is fixedly connected to the bottom of the inserted bar and corresponds to the steam inlet hole, a spring is sleeved on the inserted bar, and the upper end and the lower end of the spring are respectively propped against the upper portion of the shell and the fixing plate.

Preferably, a sealing gasket is arranged between the fixing plate and the steam inlet, the sealing gasket is connected with the fixing plate, and the sealing gasket is made of nitrile rubber.

Preferably, the steam inlet pipeline is respectively communicated with the locking mechanism and the drain valve through a three-way valve.

Preferably, one end of the steam inlet pipeline, which is communicated with the locking mechanism, is fixedly connected with a fixed flange, the upper end surface of the locking mechanism is provided with a movable flange, and the fixed flange is fixedly connected with the movable flange through a locking bolt.

Preferably, the limiting plate and the locking mechanism are respectively arranged at the lower part of the kettle cover.

Preferably, one end of the steam inlet pipeline, which is communicated with the locking mechanism, is fixedly connected with the kettle body through a fixed seat.

Compared with the prior art, the utility model has the beneficial effects that:

1. On the basis of the original safety interlocking device, the limiting plate and the locking mechanism matched with the limiting plate are additionally arranged on the kettle cover, so that the secondary protection effect of the kettle cover is achieved, and even if a built-in actuator (locking mechanism) in the original safety interlocking device of the still kettle fails, the kettle cover can be prevented from being opened by free rotation, thereby preventing the kettle cover from flying out to explode, and the safety and reliability of the still kettle in use are greatly improved.

2. The locking mechanism is clamped and fixed through the fixed flange and the movable flange, when the internal fault of the locking mechanism needs to be replaced, the locking bolt and the nut are loosened, the locking mechanism can be directly taken down, a new locking mechanism is replaced, the maintenance and overhaul efficiency is improved, and the cost is saved.

3. The steam inlet pipeline is respectively communicated with the locking mechanism and the drain valve through the three-way valve, so that the automatic protection locking of the kettle cover of the still kettle can be realized through one steam inlet pipeline, and the drainage of condensed water is not hindered, so that the structure of the steam inlet pipeline is more compact and the steam inlet pipeline is more convenient to use.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a portion of a left-hand construction of the present utility model;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a schematic view of the exterior structure of the locking mechanism;

FIG. 6 is a schematic view of the internal structure of the locking mechanism;

fig. 7 is a schematic view of the installation of the locking mechanism.

In the figure, 1, a kettle cover; 2. a steam inlet pipeline; 201. a fixed flange; 202. a locking bolt; 203. a movable flange; 3. a kettle body; 4. a limiting plate; 5. a locking mechanism; 501. a housing; 502. a rod; 503. a spring; 504. a sealing gasket; 505. a fixing plate; 506. a steam inlet hole; 6. a drain valve.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

The directional terminology referred to in the paragraphs directed to the detailed description is merely for convenience of those skilled in the art in understanding the teachings of the utility model as set forth in the visual orientations illustrated in the accompanying drawings. Unless specifically defined and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly so that one of ordinary skill in the art would understand the meaning of the terms in this disclosure as the case may be.

Embodiment one:

As shown in fig. 1 and 3, an autoclave cover locking device comprises a kettle body 3, wherein an openable kettle cover 1 is arranged on the kettle body 3, a limiting plate 4 is fixedly connected to the lower end of the kettle cover 1, specifically, the limiting plate 4 is welded above kettle teeth at the lower part of the kettle cover 1, an inserting hole is formed in the limiting plate 4, an steam inlet pipeline 2 is communicated with the kettle body 3 in a sealing manner through a flange, and a locking mechanism 5 is arranged at the tail end of the steam inlet pipeline 2. The locking mechanism 5 is matched and locked with the limiting plate 4 and then matched with the original safety interlocking device of the autoclave, so that the safety and reliability of the autoclave locking are greatly improved.

As shown in fig. 5 and 6, the locking mechanism 5 includes a housing 501, a steam inlet 506 matching with the steam inlet pipe 2 is provided at the bottom of the housing 501, a hollow upper cover is provided at the upper part of the housing 501, a telescopic inserted bar 502 is provided in the housing 501, the inserted bar 502 passes through the upper cover, the inserted bar 502 is matched with a jack on the limiting plate 4, a fixing plate 505 is fixedly connected to the bottom of the inserted bar 502, the fixing plate 505 corresponds to the steam inlet 506, the fixing plate 505 can block the steam inlet 506, a spring 503 is sleeved on the inserted bar 502, and the upper and lower ends of the spring 503 respectively prop against the inner surface of the upper cover and the fixing plate 505 at the upper part of the housing 501.

When the novel kettle is used, pressure in the kettle body 3 enables steam in the kettle to enter the locking mechanism 5 through the steam inlet pipeline 2, the steam pushes the fixed plate 505 to rise, and the inserted rod 502 is driven to extend out of the insertion hole in the limiting plate 4, so that a secondary protection effect can be achieved, that is, even if a built-in actuator (locking mechanism) in the original safety interlocking device of the autoclaved kettle fails, the kettle cover 1 can be prevented from being opened by free rotation, and the kettle cover 1 is prevented from flying out to explode. When the pressure in the kettle body 3 is lower than the set pressure, the fixed plate 505 falls back under the action of gravity to drive the inserted rod 502 to separate from the jack on the limiting plate 4, so that the kettle cover 1 can be safely opened.

Embodiment two:

As shown in fig. 1, the other end of the steam inlet pipeline 2 is respectively communicated with the locking mechanism 5 and the drain valve 6 through a three-way valve, so that the automatic protection locking of the steam autoclave cover 1 through one steam inlet pipeline 2 is realized, and the drainage of condensed water is not hindered; as shown in fig. 6, a sealing gasket 504 is arranged between the fixing plate 505 and the steam inlet 506, the sealing gasket 504 is connected with the fixing plate 505, and the sealing gasket 504 is made of nitrile rubber. The gasket 504 made of nitrile rubber can resist high temperature and high pressure, and the sealing performance of the locking mechanism 5 is improved by arranging the gasket 504. The other is the same as in the first embodiment.

Embodiment III:

As shown in fig. 2, 4 and 7, one end, communicated with a locking mechanism 5, of a steam inlet pipeline 2 is fixedly connected with a fixed flange 201, the upper end surface of the locking mechanism 5 is provided with a movable flange 203, the fixed flange 201 is fixedly connected with the movable flange 203 through a locking bolt 202 and a nut, and the locking mechanism 5 is clamped and fixed through the fixed flange 201 and the movable flange 203. One end of the steam inlet pipeline 2, which is communicated with the locking mechanism 5, can be fixedly connected with the flange part of the kettle body 3 through a fixed seat, and can also be directly fixed with the flange part of the kettle body 3, so long as the inserted bar 502 in the locking mechanism 5 can be aligned with the jack on the limiting plate 4, and the inserted bar 502 can be inserted into the jack when extending out. The other is the same as the embodiment.

In this embodiment, when the internal fault of the locking mechanism 5 needs to be replaced, the locking bolt 202 and the nut are loosened, the locking mechanism 5 can be directly removed, and a new locking mechanism 5 can be replaced, so that the maintenance and repair efficiency is improved, and the cost is saved.

When the utility model is used, the position switch is arranged on the kettle cover 1 and is used as an early warning mechanism, and the position switch is connected with the control display. The position switch circuit can be connected in series with the original safety interlocking device or can be used independently, and the position switch is used for detecting the stroke of the inserted link 502. Meanwhile, the preset pressure in the autoclave is set according to the gravity of the fixed plate 505, and is 0.003MPa in the utility model. When the pressure in the autoclave reaches or is greater than the preset pressure, for example, the pressure is greater than 0.003MPa, steam enters the steam inlet pipeline 2 to push the inserted rod 502 to extend out of the insertion hole in the limiting plate 4, so that the autoclave cover is locked, and a control display displays that the inserted pin is locked; when the pressure in the kettle is lower than the set pressure, for example, less than 0.003MPa, the inserted rod 502 falls back under the action of self gravity of the fixed plate 505, and the display is controlled to display that the bolt is opened.

Finally, although the description has been described in terms of embodiments, not every embodiment is intended to include only a single embodiment, and such description is for clarity only, as one skilled in the art will recognize that the embodiments of the disclosure may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a evaporate and press cauldron lid locking device, includes the cauldron body (3), is equipped with cauldron lid (1), its characterized in that on the cauldron body (3): fixedly connected with limiting plate (4) on cover (1), the jack has been seted up on limiting plate (4), the intercommunication has steam inlet pipe (2) on the cauldron body (3), the end of steam inlet pipe (2) is equipped with locking mechanical system (5), locking mechanical system (5) include casing (501), casing (501) bottom seted up with steam inlet pipe (2) complex steam inlet hole (506), be equipped with telescopic inserted bar (502) in casing (501), inserted bar (502) are corresponding with the jack, inserted bar (502) bottom fixedly connected with fixed plate (505), fixed plate (505) are corresponding with steam inlet hole (506), the cover is equipped with spring (503) on inserted bar (502), both ends offset with casing (501) upper portion and fixed plate (505) respectively about spring (503).

2. The autoclave lid locking device according to claim 1, wherein: a sealing gasket (504) is arranged between the fixing plate (505) and the steam inlet hole (506), the sealing gasket (504) is connected with the fixing plate (505), and the sealing gasket (504) is made of nitrile rubber.

3. The autoclave lid locking device according to claim 2, wherein: the steam inlet pipeline (2) is respectively communicated with the locking mechanism (5) and the drain valve (6) through three-way valves.

4. The autoclave lid locking device according to claim 3, wherein: one end of the steam inlet pipeline (2) communicated with the locking mechanism (5) is fixedly connected with a fixed flange (201), the upper end face of the locking mechanism (5) is provided with a movable flange (203), and the fixed flange (201) is fixedly connected with the movable flange (203) through a locking bolt (202).

5. The autoclave lid locking device according to claim 4, wherein: the limiting plate (4) and the locking mechanism (5) are respectively arranged at the lower part of the kettle cover (1).

6. The autoclave cover locking device according to any one of claims 1 to 5, characterized in that: one end of the steam inlet pipeline (2) communicated with the locking mechanism (5) is fixedly connected with the kettle body (3) through a fixed seat.