CN107319916A - A kind of safe opening pressure relief device of pressure vessel - Google Patents

Abstract

The invention relates to a pressure relief device for safely opening the cover of a pressure vessel, which includes a handle, a button, a hook and a spring installed on the cover body. The push piece and the connection part passing through the upper cover and the lower cover, when the driving part of the handle is in the working position, the push piece and the sealing ring are in non-contact cooperation, and when the driving part of the handle rotates to the pressure relief position, the push piece pushes the sealing ring The button is installed on the upper cover and is located directly below the driving part of the handle when it is in the working position. The hook includes a rotating shaft whose middle part is pivotally connected to the lower cover, and a buckle installed on the casing of the pressure vessel at the lower end. The dead bolt that can be clutched and locked and the pressing part that the upper end contacts and cooperates with the button, one end of the spring is installed on a positioning post of the lower cover, and the other end leans against the pressing part of the hook. The safety cover opening and pressure relief device adopting this structure has good safety performance.

Description

A pressure relief device for safe opening of a pressure vessel

technical field

The invention belongs to the technical field of household appliances, and in particular relates to a pressure relief device for safely opening the cover of a pressure vessel.

Background technique

In the existing micro-pressure control pressure vessel, the driving structure of opening the lid and pressure relief is usually not related to each other, that is, the two are controlled independently, and there is no sequential control sequence. With this structural design, when the user opens the lock lid without pressure relief, There will be certain security risks.

Contents of the invention

The object of the present invention is to provide a pressure relief device for uncapping a pressure vessel that overcomes the above-mentioned problems and ensures that the pressure vessel can be uncapped only after the pressure relief action is performed.

The technical solution for realizing the purpose of the present invention: a pressure relief device for safely opening the cover of a pressure vessel, characterized in that it includes a rotatable handle (3), a button (4), a hook (5), a spring ( 6), the cover body includes an upper cover (1) and a lower cover (2), and the handle (3) includes an upper driving part (30), a push piece ( 31) and through the connecting part (32) of the upper cover (1) and the lower cover (2), when the driving part (30) of the handle is in the working position, the push piece (31) and the sealing ring (7) are not Contact fit, when the driving part (30) of the handle is rotated to the pressure release position, the push piece (31) pushes out the sealing ring (7) and deforms to release the pressure, and the button (4) is installed on the upper cover (1 ) and directly below the driving part (30) of the handle when it is in the working position, the hook (5) includes a rotating shaft (50) whose middle part is pivotally connected to the lower cover (2), the lower end and the casing installed on the pressure vessel (8) The upper buckle (9) can be clutched and locked by the lock tongue (51) and the pressing part (52) whose upper end is in contact with the button (4). One end of the spring (6) is installed on the lower cover (2). On a positioning post (20), the other end leans against the pressing part (52) of the hook (5), so that the dead bolt (51) of the hook (5) is in the non-pressed state of the button (4) and the buckle (9 ) contact lock.

Two protruding stop buttons (41) are provided at the bottom of both sides of the button (4).

The lower cover (2) is provided with a pair of lugs (21) with mounting holes, and the lower cover (2) between the two lugs (21) is provided with a hole for the dead bolt (51) of the hook (5) to pass through. through holes (22).

The sealing ring (7) is located between the upper cover (1) and the lower cover (2), and the upper cover (1) and the lower cover (2) are fixed by screws or buckles.

Beneficial effects of the present invention: Since the button for opening the cover is located directly below the driving part of the rotatable handle when it is in the working position, the button is covered, so when the pot cover is to be opened, the driving part of the handle must be rotated to release the pressure The position can be pressed, so as to achieve the purpose of opening the cover safely.

Description of drawings

Fig. 1 is a top view structural schematic diagram of a cover body of a pressure vessel in a working state;

Fig. 2 is a top view structural schematic diagram of the cover body of the pressure vessel in the pressure release state;

Fig. 3 is a schematic cut-away structure diagram of a cover body of a pressure vessel in a working state;

Fig. 4 is a schematic cut-away structure diagram of a cover body of a pressure vessel in a pressure release state;

Fig. 5 is a schematic bottom view of the cover of the pressure vessel in working condition;

Fig. 6 is a schematic bottom view of the cover body of the pressure vessel in a pressure release state;

Fig. 7 is the structural exploded diagram of pressure vessel;

FIG. 8 is an enlarged view of part A of FIG. 7 .

detailed description

The specific implementation of the safety opening pressure relief device for the pressure vessel according to the present invention will be further described in detail below in conjunction with the accompanying drawings.

1. As shown in Figures 1-8, the pressure relief device for safe opening of the pressure vessel in this embodiment includes a rotatable handle 3, a button 4, a hook 5, and a spring 6 installed on the cover, and the cover includes The upper cover 1, the lower cover 2 and the sealing cover 10, the handle 3 includes the upper driving part 30, the push piece 31 that pushes out the sealing ring 7 of the pressure vessel at the lower part and the connecting part 32 passing through the upper cover 1 and the lower cover 2, when When the driving part 30 of the handle is in the working position shown in Figures 1, 3 and 5, the push piece 31 is non-contactingly matched with the sealing ring 7, and when the driving part 30 of the handle is rotated to the pressure relief position shown in Figures 2, 4 and 6 , the push piece 31 pushes out the sealing ring 7 to deform and release the pressure. The button 4 is installed on the upper cover 1 and is located directly below the driving part 30 of the handle when it is in the working position. Two protruding limit buckles 41 . The hook 5 includes a rotating shaft 50 whose middle part is pivotally connected to the lower cover 2, a lock tongue 51 whose lower end is clutchable and lockable with the buckle 9 installed on the casing 8 of the pressure vessel, and a pressing part 52 whose upper end is in contact with the button 4, and a spring One end of 6 is installed on a positioning column 20 of the lower cover 2, and the other end leans against the pressing part 52 of the hook 5, so that the lock tongue 51 of the hook 5 contacts and locks with the buckle 9 when the button 4 is not pressed. The lower cover 2 is provided with a pair of lugs 21 with mounting holes, and the lower cover 2 between the two lugs 21 is provided with a through hole 22 for the dead bolt 51 of the hook 5 to pass through. The sealing ring 7 of this embodiment is located between the upper cover 1 and the lower cover 2, and is used for sealing between the container 11 and the lower cover 2. The lower cover 2 is provided with a screw column 23, and the upper cover 1 and the lower cover 2 pass through It can be fixed by screws, of course, it can also be fixed by buckles.

With the pressure relief device for safety opening of the pressure vessel with this structure, when the cover needs to be opened, the handle must be rotated first so that the driving part 30 is at the pressure release position, and then the button 4 can be exposed for pressing to open the cover, so the safety performance is good.

Claims (4)

1. A safety lid opening pressure relief device for a pressure vessel, characterized in that: comprising a rotatable handle (3), a button (4), a hook (5), and a spring (6) installed on the lid body, the lid The body includes an upper cover (1) and a lower cover (2), and the handle (3) includes an upper driving part (30), a push piece (31) that pushes out the sealing ring (7) of the pressure vessel at the lower part and passes through the upper The connecting part (32) of the cover (1) and the lower cover (2), when the driving part (30) of the handle is in the working position, the push piece (31) and the sealing ring (7) are in non-contact fit, when the handle When the driving part (30) rotates to the pressure release position, the push piece (31) pushes out the sealing ring (7) and deforms to release the pressure. The button (4) is installed on the upper cover (1) and is located on the handle The driving part (30) is directly below when it is in the working position, and the hook (5) includes a rotating shaft (50) whose middle part is pivotally connected to the lower cover (2), the lower end and the buckle installed on the casing (8) of the pressure vessel. The lock tongue (51) of position (9) can be clutched and locked and the pressing part (52) whose upper end is in contact with the button (4). One end of the spring (6) is installed on a positioning post (20) of the lower cover (2). The other end leans against the pressing part (52) of the hook (5), so that the dead bolt (51) of the hook (5) contacts and locks with the buckle (9) when the button (4) is not pressed. 2. The pressure relief device for safely opening the lid of a pressure vessel according to claim 1, characterized in that two protruding stop buttons (41) are provided on the bottom of both sides of the button (4). 3. The pressure relief device for safely opening the cover of the pressure vessel according to claim 1, characterized in that: the lower cover (2) is provided with a pair of lugs (21) with mounting holes, and the gap between the two lugs (21) is There is a through hole (22) for the dead bolt (51) of the hook (5) to pass through on the lower cover (2). 4. The pressure relief device for safely opening the pressure vessel according to claim 1, 2 or 3, characterized in that: the sealing ring (7) is located between the upper cover (1) and the lower cover (2), and the upper cover (1) and the lower cover (2) The cover (1) and the lower cover (2) are fixed by screws or buckles.