JPH01275965A - Pressure vessel - Google Patents

Abstract

PURPOSE: To easily remove a lid from a vessel by preventing a sealed condition unless a lid locking mechanism is actuated for complete closing. CONSTITUTION: The housing 5 of a pressure vessel has a seal member 44 for opening a lid 10 relative to the housing 5 in association with the locking finger 32 of the lid 10. When the locking finger 32 is shifted to a locked position, the vessel is sealed to the lid 10 to enable pressurization. When the locking finger 32 is shifted from the locked position, the seal member 44 is not located on a vent port 48 to permit an unsealed condition, and enables residual pressure to vent before the lid 10 is completely unlocked.

Description

DETAILED DESCRIPTION OF THE INVENTION (°Industrial Field of Application) The present invention relates to containers, and in particular to safety lJ+i4 which prevents opening of the container due to pressure effects and at the same time prevents premature sealing of the container! The present invention relates to a vessel that has advantages and is used as a pressure vessel.

(Prior Art) Conventionally, the lid of a pressure vessel is constructed with a safety feature such as a blow-off valve A5 pressure sensitive latch, which prevents the vessel from opening due to pressure and at the same time prevents excessive pressure loading of the vessel. .

(Problems to be Solved by the Invention) However, problems arise with such containers when the blow-off valve is not adjusted properly or the latch does not close properly due to pressure build-up due to the user's carelessness.

Under these conditions, a disastrous accident can occur if a blowout valve or latch that is not properly adjusted quickly closes. In such a case, the container will burst and the liquid inside will scatter, causing injury to people nearby.

(Means for Solving the Problems) The present invention solves the above problems by combining the locking side of the lid with a vent mechanism.

In the present invention, the housing is configured such that the lid lock does not become sealed unless the mechanism is fully opened, thereby preventing pressurization of the container until the lid is completely fixed to the housing of the container. are doing. Removal of the lid from the container is only possible after the container has been sufficiently depressurized, at which time any residual pressure can be completely and safely vented from the housing through the vent pipe.

(Summary of the Invention) The pressure vessel of the present invention avoids the above-mentioned danger by providing a combination of a vent Rm including a cap having a locking finger and a locking mechanism. The pressure vessel housing includes a sealing member that cooperates with a locking finger on the lid to release the lid from the housing. The container is provided with a sealing device arranged to seal and pressurize the container when the locking finger is shifted to the locked position. The container can therefore be pressurized only after the lid is securely secured to the container. Shifting of the locking finger from the locked position moves the sealing device to unseal the container and allow residual pressure to escape before the lid is fully unlocked.

(Purpose of the invention) One object of the present invention is to provide a safe pressure vessel.

Another object of the present invention is to provide a pressure vessel having a combination of a wedge mechanism and a vent structure.

Other objects of the invention will become apparent from the following description of the examples.

(Example) Next, an example of the present invention will be described with reference to the drawings. It should be noted that the present embodiments are not intended to limit the present invention to the precise embodiments illustrated herein, but were selected and described to explain the principles of the present invention so that those skilled in the art can utilize the present invention. It is something.

In a first embodiment of the invention, the pressure vessel 110 shown in FIGS. Equipped with: Handle shaft 1
4 is connected to a horizontal handle 16 that is held by the user's hand. 7. The flange 12 is a part of the lid 10 and is rotatably connected to the cover plate 18 via a fastener 20 with a threaded portion on the right side.
is the central bore 22 formed in the cover plate 18.
The central bore 22 is threaded through the threaded hole 24 of the handle shaft 14 (see Fig. 4).
An annular boss 21 protrudes from the lower surface 23 of the flange 12 around the flange 12, and this boss 21 abuts against the cover plate 18, leaving a slight gap between the flange 12 and the cover plate 18. The presence of such a gap allows the handle 16 to be easily turned.

A channel 30 is cut into the underside of the flange 12, which adjusts the shifting of locking fingers 32, which are spaced approximately at circumferential intervals. Pintle pin 34 (shown in the figure as an integrally molded part with flange 12,
It can be formed as a separate piece to create a suitable gl 4' (7 langes 12
The position of the locking finger 32 is such that the locking finger 32 is rotatable within the channel 30 about the pintle pin 34. Fastener 20 is O-ring 2
6, the O-ring 26 is mounted within the annular groove 28 of the fastener 20 to provide a seal between the central bore 22 and the shank of the fastener 20. An annular fi 444 is formed on the lower surface of the flange 12, and the position of this annular groove 44 is such that when the flange 12 rotates around the axis of the fastener 20, the lid 10 moves as shown in FIG. ! An O-ring 46 is configured to seal over a vent boat 48 on the cover plate 18 when the fully open position shown in FIGS. 2 and 4 is reached.

The locking finger 32 has a rod shape with a substantially square cross section, but its pivot end 36 is rounded. A bore 38 is formed at the radial center of the pivot end 36 of each locking finger 32 for receiving a pin 34 therein.

Each locking finger 32 is also provided with a slot 4o for an alignment bolt 50, which will be described later, between the extended position of the locking finger 32 shown in FIG. 2 and the lζ retracted position shown in FIG. Adjusting shift work.

Each locking finger 32 has an upwardly facing shoulder 4 at the end opposite the roughly rounded pivot end 36.
This shoulder portion 42 contacts the outer wall 6 (shown in cross section) of the housing 5 of the container to prevent opening of the container 110 while the container is under pressure.

The outer wall 6 is closed at its bottom, and the housing 5 is formed with one or more 70-boats (not shown) that allow pressurized fluid to flow into and out of the housing 5.

Alignment bolts 50 attached to cover plate 18
is for movably connecting the locking finger 32 to the cover plate 18 through the slot 4o,
This bolt 5o allows the □king fin 32 to be aligned with the opening 52 provided in the housing 5. The cover plate 18 has an annular groove 54 on its periphery, in which an O-ring 54 is fitted which provides a seal between the cover plates 1 and 18 of the inner wall 7 of the housing. Cover plate 1 explained earlier
The vent boat 48 formed at 8 serves to release the pressure in the valley when the reeds 10 are not completely closed.

The housing 5 of the container has a stepped upper end and an opening 5.
The thickness of the area with the 2-thickness is somewhat thinner than the thickness of the lower part, and the transitional area between these two types of thickness forms the shoulder 8. The purpose of providing such a shoulder 8, which will be explained in detail later, is to prevent the lid 10 from being excessively inserted into the housing 5 of the container.

Next, the operation of the above embodiment will be explained. The lid 10 functions with respect to the housing 5 of the container in the following manner.

First, turn the handle boat 14 and locking finger 3
2 can be retracted to the retracted position as shown in FIG. In this retracted position, the locking finger 32 projects slightly beyond the periphery of the cover plate 18. The lid 10 is then placed so that the locking finger 32 hits the shoulder 8 of the container.
The inside of the container 5 is lowered until it can no longer be moved downward.

At this point, the O-ring 54 seals between the WIO and the inner wall 7 of the housing 5. In this state, the lid 1
Since the O-ring 44 supported on the 0.7 flange 12 is not located on the vent boat 48, the container housing 5
If internal pressure is present, this pressure is released through the vent boat 48 of the cover plate 18.

The user then turns the handle boat 14 to remove the flange 1.
2 rotates the locking finger 32 around the pintle pin 34 and at the same time shifts outwardly guided by the alignment bolt 50. Continued rotation of the flange 12 causes the shoulder 42 of the locking finger 32 to pass through the opening 52 in the housing 5. Such rotation is stopped when the locking finger 32 reaches its most protruded position and abuts against the wall 31 of the channel 30 of the flange 12, as shown in FIG. When the lid 10 is in the closed position, the shoulder portion 42 of the locking finger 32 extends beyond the outer wall 6 of the housing 5, and the O-ring 46 of the 7 flange 12 is shown in FIGS. 2 and 4. It is located concentrically around the vent boat 48 and in sealing contact with the cover plate 18. Ben 1 - Boat 48 and O
Concentric alignment with ring 46 forms a hermetic seal;
Pressure is prevented from escaping from the housing 5 through the vent boat 48 during pressurization.

When the lid 10 is completely closed as shown in FIG. 1, the container can be pressurized. Such pressure lifts the lid 10 and locks the locking finger 32 to the upper edge of the opening 52 of the housing 5, as shown in FIG. For further safety, while the container is under pressure, the shoulder portion 42 of the locking finger 32 is pressed against the outer wall 6 of the housing 5 to prevent the opening locking fin from moving to the retracted position. ing. When the pressure is reduced, the lid 10 falls into the reduced pressure position and can be removed by turning the handle boat 14 and retracting the locking finger 32 by one or two steps.

An important feature of the invention is that the action of the locking finger 32 and the action of the O-ring 46 and bent bow set 1-48 are simultaneous as previously described. f210
If the O-ring 46 is not properly ie, fully closed or fully locked, the O-ring 46 will close the vent boat 4.
Not seated properly around 8. If the seal is not made, the internal pressure will escape through the vent port 48, and the housing 5 will be prevented from becoming pressurized. While in this open position, locking finger 3
Bent boat 48 by O-ring 46 before the shoulder portion 42 of 2 is pulled in beyond the outer wall 6 of the housing 5.
The top seal is missing.

Therefore, the residual pressure can be easily released while leaving ft10 in a half-open state.

゛Figures 6 to 8 do not show the second embodiment. In this embodiment, a flange 58 is integrally attached to the handle boat 60. The handle boat 60 is provided with a horizontal handle 62. This handle 62 functions as a grip for the user. The flange 58 is rotatably attached to a cover plate 64 forming a part of the lid 57 by a screw 71 snapper 66.
j is being kicked. Fastener 66 extends through a central bore 68 formed in cover plate 64 and into a threaded bore 70 formed in handle boat 60 (see FIG. 8). An annular boss 7 is provided on the lower surface 74 of the flange 58.
2 is provided protrudingly. The boss 72 is formed to surround a central bore 68 formed in the cover plate 64 and is in contact with the cover plate 64. Therefore, a gap is formed between the flange 58 and the cover plate 64. Note that this gap is set to be extremely small. The reason for forming this gap is to enable the handle boat 60 to be easily rotated.

A channel 76 is formed in the lower surface 74 of flange 58 . This one? Locking finger 78 on flannel 76
is engaged, and this channel 76 limits the shifting range of the locking finger 78. Further, a pintle pin 80 is attached to the flange 58 with a mounting number. The locking finger 78 is set to rotate within the dial 76 about the pintle pin 80. In addition, although the pintle pin 80 is formed integrally with the flange 58 in the figure, it may be attached by some kind of fastening member. The fastener 66 includes an O-ring 82 that is engaged within an annular groove 84 and provides a seal between the central bore 68 and the shank of the fastener 66.

Each locking finger 78 is formed into a substantially rectangular shape, and only the end portion 90 on the pintle pin 80 side is formed into a curved shape. A bore is formed at the center of curvature of the end portion 90 of the locking finger 78, into which the pintle pin 80 is inserted. Each locking finger 78 also has a slot 94 formed therein. This slot 94 allows the locking finger 78 to be moved between the protruding position (see Figure 8) and the rear').
It becomes possible to shift between the u position (see FIG. 7). The free end of each locking finger 78 is formed with a beveled edge 110 and a detent 96 having a diameter of 97.99 mm. As already mentioned, the action of the detent 96 prevents the lid 57 from collapsing under pressure applied to the container.

A positioning bolt 100 is attached to the cover plate 14 so as to be inserted through the slot 94. Accordingly, the locking fingers 78 can be set in alignment with the openings 102 formed in the housing 88 of the container. An annular groove 104 is formed at the periphery of the cover plate 1-64. An O-ring 106 is installed within this annular groove 104 for sealing between the housing 8B and the cover plate 1-64.

An annular tapered shoulder 10 is provided at the top of the housing 88.
8 is formed, and the part located above the tapered shoulder 108 (the part to the right of the opening 102)
The wall thickness of b ii9<
It is set. One or more flow holes 1- (not shown) are formed in the housing 88, thereby forming a flow path for pressurized fluid that communicates the inside and outside of the housing 88. A vent boat 86 is formed in a wall 98 of the housing 88 . This bent boat 86
is located just below the tapered shoulder 108 and serves to relieve pressure within the housing 88 when the lid 57 is not securely closed.

Next, the operation will be explained. Close the lid 57 by following the steps below.
is attached to housing 88. First, the handle boat 60 is operated to turn the flange 58 and the locking finger 78 is set to the retracted position as shown in FIG.

In that position, the free end of locking finger 78 projects slightly beyond the end of cover plate 64. Next, the lid 57 is pushed down into the housing 88. At this time,
O-ring 106 is still located above bent boat 86. That is, the O-ring 106 is connected to the bent boat 86.
The lower seal position has not been reached.

Therefore, even if the pressure inside the housing 88 increases due to the lowering of the lid 57, the pressure is released through the vent boat 86.

O-ring 106 is aligned to bent boat 86 as locking finger 78 is aligned to same Lm 102. Here, the flange 58 is fixed by the handle boat 60.
When the locking finger 78 is turned, the pintle pin 80
Turn around and shift outward at the same time. As the 7-lunge 58 continues to be roughly rotated, the inclined edge 110 of the lobed 4-ng finger 78 is cammed into engagement with the upper edge of the opening 102, forcing the lid 57 downward. Rotation of flange 58 is stopped when locking finger 78 comes into contact with end wall 77 of channel 76 and reaches a fully extended position. In the closing position of the lid 57 obtained in this way, the surface 97 of the locking finger 78 touches the housing 88.
O-ring 106 projects from wall 98 and is located below vent boat 86 in sealing engagement with housing 88 (see FIG. 8). 0 ring 106 and bent boat 8
6 are in the relative position as described above, the pressure within the housing 88 will not be reduced through the vent boat 86 during pressurization.

As shown in FIG. 8, when the lid 57 is in the fully closed position, the interior of the housing 88 can be pressurized.

Then, when pressurization is started, the lid 57 is lifted and the detent portion 96 comes into contact with the upper surface of the opening 102 (see FIG. 8). Since the surfaces 97 and 99 are located on both sides of the upper surface of the opening 102, the locking finger 78 will not return to the retracted position during pressurization. On the other hand, under the reduced pressure state, while pressing the lid 57, the handlebar
Turn the locking finger 78 to V! When it is retracted, the engagement between the detent portion 96 and the opening 102 is released, and the lid 57 is released.
can be removed. Since the locking finger 78 has been returned to the retracted position, the residual pressure forces the lid 57 upwardly so that the beveled edge 110 contacts the upper edge of the opening 102. Furthermore, when the locking finger 78 is held in the retracted position, the one-slanted joint 110 and the opening 102 are in slidable contact.
The lid 57 gradually rises. When the lid 57 is of sufficient quality,
The O-ring 106 moves above the bent boat 86 and the locking finger 78 is fully retracted so that the housing 88
Residual pressure within the housing 88 is released as the connection between the housing 88 and the housing 88 is broken.

As with the first embodiment, a feature of this embodiment is that the locking fingers 78 operate simultaneously. When the lid 57 is completely closed IF and not locked, the O-ring 106 is not located on the F side of the vent boat 86. If the housing 88 is not sealed, the pressure inside the housing 88 is released by the vent boat 86, so that the inside of the housing 88 is not pressurized. In the opening operation, O-ring 106 unseals from vent boat 86 before locking finger 78 is withdrawn from wall 98 of vessel 88.

That is, it is safe because the residual pressure is released while the lid 57 is engaged with the housing 88.

9 and 10 do not show a modification of the locking finger of the second embodiment (FIGS. 6 to 8). In this example, except for the locking finger and the opening formed in the housing, other components and operation are the same as in the second embodiment.

A detent 116 is formed on the locking finger 78' and surfaces 112, 113 are formed on both sides thereof. The surface 112 is sloped and has serrations 114 formed therein. Further, the housing 88 is formed with an opening 102-, and the upper surface thereof is formed with edge surfaces 118 and 122 that are inclined in opposite directions.

Then, one edge surface 122 has serrations 124.
is formed.

In this example, the lid is operated in the same manner as in the previous example.

That is, the flange 58 is moved by the handle boat 60.
When the locking finger 78' is turned, the locking finger 78' extends so that its free end protrudes into the opening 102-. When locking finger 78' is shifted outwardly, surface 112 contacts edge surface 122 of aperture 102' and barb 57 is urged toward F.

Regarding the locking finger 78' in the closed position of FIGS. 9 and 10, the serrations 112.
124 engages phase n so that locking finger 78' will not fall out of opening 102' under pressure. Further, by installing the serrations 124 and 114, it is possible to prevent the locking arm 78' from falling off even if the locking arm 78' does not protrude for one minute.

Note that this invention is not limited to the examples, but only by the scope of the claims.

[Brief explanation of the drawing]

Figures 1 to 5 show a first embodiment of this invention, with Figure 1 being a partially perspective view of the container with the lid attached and completely closed, and Figure 2 being the fully closed state. 3 is a top view of the container with the lid open, FIG. 4 is a sectional view taken along line 4-4 in FIG. 2, and FIG. -5 line sectional view, Figures 6 to 8 show the second embodiment, Figure 6 is a plan view of the container with the lid open, and Figure 7 is a 7-7 line cross section in Figure 6. Figure 8 is a sectional view similar to Figure 7 with the lid closed, Figures 9 and 10 show the third embodiment, and Figure 9 is with the lid closed. A sectional view showing a part of the container, FIG. 10 is an enlarged view of the portion surrounded by a circle indicated by 10 in FIG. 9. 5.58... Housing 10.57... Lid 12.58... Flange 14.60... Handle shaft 16.62... Handle 18.64... Cover plate 32, 78.78° ...locking finger 34,
80... Pintle pin 42... Shoulder portion 4G, 106... 0 ring 48.86... Bent boat 52, 102. 102°... Opening 96, 116... Detent portion 97, 99. 112.113... Surface 114.124... Serration 118, 122... Edge surface Applicant Howard William Morgan Jr.

Claims (1)

Claims: (1) A housing having an opening, a lid for covering the opening of the housing, a closed position attached to the lid for fixing the lid to the housing, and a closed position for fixing the lid to the housing; a locking device shiftable between an open position for removal from the housing, the pressure vessel having a safety device attached to the locking device to prevent pressurization within the housing; When the lid is fixed to the housing, the safety device is inactive to enable pressurization inside the housing, and the safety device is connected to a vent hole and a sealing device formed in the lid or housing. and wherein when the locking device is shifted between the closed and open positions, the sealing device is shifted between a sealed position and an unsealed position relative to the vent. (2) A drive member to which the locking device is attached to the lid, a plurality of protruding and retractable finger members attached to the drive member, a plurality of openings formed in the housing, and a shift of the locking device. a coupling device for coupling the finger member to the drive member for operatively extending and retracting the finger member; when the locking device is shifted to the closed position, the finger member 2. A pressure vessel according to claim 1, wherein said pressure vessel is engaged within said opening formed in said housing. (3) the ventilation hole is formed in the lid, the driving member is located above the ventilation hole and has a sealing member constituting the sealing device, and when the locking device is in the closed position, the driving member 3. A pressure vessel as claimed in claim 2, overlying and sealingly engaging the lid around the vent. (4) The driving member is a ring seal device, and the vent hole is surrounded by the ring seal device when the locking device is in the closed position.
Pressure vessel as described in section. (5) the vent hole is formed in the housing, and the lid has a peripheral edge supporting the sealing device and is shiftable relative to the housing, when the locking device is shifted to a closed position, the lid is shifted to a first position, and when the locking device is shifted to the open position, the lid is shifted to a second position, and when the lid is in the second position, the sealing device connects the housing opening and the communication passage. 3. The pressure vessel of claim 2, wherein the sealing device is located between one side of the vent and the sealing device is located on the other side of the vent when the lid is in the first position. (6) The finger member has a cam device that is engageable with the housing, and when the locking device is shifted between a closed position and an open position, the cam device moves the lid to the first position. 6. The pressure vessel of claim 5, wherein the pressure vessel is shifted between the second position and the second position. (7) The finger member has a detent device located inside the cam device, and when the locking device is shifted to the closed position and the inside of the housing is pressurized, the detent device allows the lid to be closed. The pressure vessel according to claim 6, which is locked to the housing. (8) a sloped portion is provided at an upper portion of the wall of the housing, the finger member has a cam device that is engageable with the sloped portion, and the locking device is shifted between a closed position and an open position; 6. The pressure vessel of claim 5, wherein said cam device shifts said lid between said first position and said second position. (9) The inclined portion and the cam device have protrusions that engage with each other, and the protrusions are engaged by pressurization within the housing and the lid is held in the first position. Pressure vessel according to item 8.