KR20170000943A - A sheet packing separation prevention device for the air vent head - Google Patents

Abstract

The present invention relates to an apparatus for preventing a separation of sheet packing for an air vent head, which is connected to a tank of a ship. The apparatus comprises an external housing having an external chamber that is a passage where air flows in or is discharged to the outside, and having an air drain formed in at least a part of a side, so as to prevent a separation of sheet packing that is attached to a circumference of an air passage formed to be penetrated on the top of a floating chamber of the air vent head that includes the floating chamber accommodating a float lifting up and down inside. The apparatus further includes a separation prevention ring member having the sheet packing attached to a circumference of the air passage of the floating chamber and providing a bearing power from an inner circumference direction to an external circumference direction of the sheet packing.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sheet packing separation prevention device for an airbelt head,

The present invention relates to a seat cushion separation preventing device for an airbnt head, and more particularly, to a seat cushion preventing device for a seat cushion for an airbelt head which houses a float provided inside an outer housing of an airbottom head, So that the upper part of the floating chamber and the float are kept in a hermetic state, so that foreign substances or flames or seawater can flow into the tank of the ship through the air pipe from the outside in an emergency such as a weather condition or a ship safety accident And more particularly, to a sheet packing separation prevention device for an airbottom head which prevents a sheet packing for an airbott head from being released.

In general, the air vent head, which is an automatic shut-off device of air pipes, is installed in all tanks of the ship to prevent excessive positive pressure and negative pressure when the pump is pumped, It is a device to prevent foreign matter, flame or seawater from entering in case of a ship safety accident by situation, stranding, fire.

As a typical prior art of such an airbott head, there is a " automatic closing device for an air pipe of a marine tank " of Registration Practical Utility Model No. 20-0310950 disclosed in Patent Document 1 of the prior art document which will be described later. In the above-described prior art, the guide tube 3 is fixedly attached to the lower portion of the outer tube 2 having the guide bar insertion hole 1 opened at its upper portion and both side openings, and the annular sheet packing And a float 7 installed inside the inner cylinder 6 is provided in the inner cylinder 6. The inner cylinder 6 is inserted into the inner cylinder 6 and the bush insertion hole 5 is opened on the lower face of the float 7, A guide bar guide bush 8 is provided at the center of the outer barrel 2 and a guide bar 10 having a projection valve 9 located at the upper side is inserted into the guide bar guide bush 8, The outer cylinder 2 is fixed to a gasket groove 21 which is fastened to the lower end of the side plate 20 and which is provided at one side of the side plate 20 which is provided with a metal mesh 18 and a protective lid 19, And a gasket (22) fitted in the peripheral portion of the opening of the inner tube (6) is inserted into the outer tube (2) and the inner tube (6).

The seat packing 4 mounted on the airbotthed head according to the prior art is made of rubber or synthetic resin and has been used after being fitted and fixed with a simple adhesive along the circumference of the opening. However, since the adhesive is very vulnerable to seawater, there is a possibility that the sheet packing may be detached from the periphery of the opening when the adhesive function is lost due to seawater. In addition, when the sheet packing is torn due to the portion that maintains the adhesive function in the process of replacing the sheet packing partially missing the adhesive function, a considerable amount of time and effort is required to remove the adhesive and the sheet packing on the circumferential portion of the opening . On the other hand, when the fluid of the ballast water or the like is filled in the tank but the operation of the pump is not stopped and the inflow of the fluid into the tank is continuously maintained, the fluid is discharged to the outside of the tank. However, when a large amount of fluid is discharged through the air vent head, the sheet packing that maintains airtightness between the float and the circumference of the opening, which is the upper air flow path of the floating chamber, can not withstand the discharge pressure of the fluid, Excessive maintenance time and cost of sheet packing have been caused. If the maintenance of the seat packing is not properly performed and the weather can not be maintained or the ship can not prevent the inflow of external fluid into the tank when the accident occurs, it could cause a huge loss of life or property due to the sinking of the ship. have.

KR 20-0310950 Y1

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an air vent which is capable of effectively maintaining airtightness by adhering the sheet packing to the circumference of the opening, And to provide a sheet packing separation preventing device for a head.

Another problem to be solved by the present invention is to solve the above problems and to provide an air vent head which is very easy to replace when replacing a sheet packing due to aging due to use, And to provide a sheet packing separation prevention device.

Another object of the present invention is to solve the above problems and to provide a sheet packing apparatus capable of withstanding a discharge pressure of a fluid when a large amount of fluid is discharged to the outside through an air vent head, The present invention provides a seat cushion separation preventive device for an airbottom head which is capable of providing a sufficient supporting force for keeping the airtightness of the seat cushion in close contact with the opening of the seat cushion in the circumferential direction.

According to an aspect of the present invention, there is provided an apparatus for preventing departure of a sheet packing for an airbelt head, comprising: an outer chamber, which is a passage through which air as a fluid is introduced into or discharged from an air pipe connected to a tank of a ship, And a floating chamber which is provided inside the outer housing and accommodates a float which floats down on the inside of the floating chamber of the air vent head, And a release preventing ring member for attaching the sheet packing on the circumference of the air passage of the floating chamber and providing a supporting force in an outer peripheral direction in the inner circumferential direction of the sheet packing, do.

The release preventing ring member may be an annular ring type inserted and received in the interior of the sheet packing.

Wherein the release preventing ring member is attached along the inner circumferential surface of the sheet packing and has an annular ring portion partially cut away so as to be adjustable in diameter size so that both ends thereof are separated from each other, And a screw fastening portion having a pair of fastening portions bent upwardly or downwardly and having a screw receiving hole having a screw thread formed at a central portion thereof.

The seat cushion separation preventing device for an airbnt head may further include a gap adjusting member coupled to the screw coupling portion and adjusting a diameter size of the annular ring portion of the release preventing ring member.

Wherein the spacing adjusting member comprises a spacing adjusting screw accommodated in a pair of screw receiving holes so that both ends of the annular ring portion are spaced apart from each other by a predetermined distance, A pair of spacing adjusting nuts each of which is accommodated in the annular ring portion and adjusts a distance between the screw receiving holes so that the separated both ends of the annular ring portion have predetermined intervals to adjust the diameter of the annular ring portion, And a gap adjusting nut which is coupled to an end of the gap adjusting screw with a screw fastening portion interposed therebetween to prevent a flow between the pair of short adjusting nuts and fix the gap.

Wherein the release preventing ring member comprises an annular ring portion inserted into the interior of the sheet packing and having at least a part of the both ends thereof cut out so as to be adjustable in diameter, And a pair of screw fastening portions, each of which is bent in an inner side, an upper portion, or a lower direction of the ring portion, the screw receiving portion having a threaded portion formed at the center thereof.

The seat belt separation preventing device for an airbnt head may further include an interval adjusting member coupled to the screw fastening portion to adjust the diameter of the annular ring portion of the release preventing ring member.

Wherein the spacing adjusting member comprises a spacing adjusting screw accommodated in a corresponding pair of screw receiving holes so that the corresponding opposite ends of the annular ring portion are spaced apart from each other by a predetermined distance, A pair of spacing nuts each of which is accommodated in both ends of the screw and adjusts the spacing of the screw receiving holes to adjust the diameter of the annular ring portion so that the separated both ends of the annular ring portion are spaced apart from each other, The gap adjusting screw may include a gap adjusting screw which is coupled to an end of the gap adjusting screw with the one screw fastening portion interposed therebetween to prevent a flow between the pair of short adjusting nuts and fix the gap.

The threaded holes may be provided at a distance of 90 degrees from the annular ring portion.

As described above, according to the seat cushion separation preventing device for an airbnt head of the present invention, it is possible to easily mount the seat cushion by the seat cushion separation preventing device without using an adhesive when the seat cushion is mounted, There is an advantageous effect that the airtightness can be maintained by being brought into close contact with the circumference of the flow path.

In addition, according to the seat cushion separation prevention device for an airbnt head according to the present invention, when replacement of the seat cushion is required due to deterioration due to use, it is very easy to replace the seat cushion using the seat cushion separation prevention device. The maintenance cost according to the present invention is advantageously very low.

In addition, according to the present invention, when a large amount of fluid is discharged to the outside through the air vent head, the release preventing member can prevent the sheet packing from coming off the floating chamber It is possible to prevent separation of the sheet packing by providing a sufficient supporting force to closely adhere in the circumferential direction of the upper air passage so as to maintain airtightness. This makes it possible to prevent a huge loss of life or property damage due to the sinking of the ship due to external fluid inflow into the tank when the weather deteriorates or the ship accident occurs in the state where maintenance is not performed due to the deviation of the seat packing. It is effective.

1 and 2 are an exploded perspective view and an exploded perspective view of an airbottom head in which a seat packing separation preventing device for an airbout head according to an embodiment of the present invention is employed,
FIG. 3 is a cross-sectional view of an airbottom head employing an apparatus for preventing separation of sheet-packing off for an airboutthead according to an embodiment of the present invention, which is cut along the line A-A '
4 is an enlarged view of the 'C' region of FIG. 3,
FIG. 5 is a longitudinal sectional view of an air vent head, which is cut along the line B-B 'in FIG. 1 and employs an apparatus for preventing separation of a seat packing from an air vent head according to an embodiment of the present invention.
6 is an enlarged view of the area 'D' in FIG. 5,
7 is a cross-sectional view of an airbottom head in which a seat packing separation preventing device for an airbnt head according to another embodiment of the present invention is employed;
FIG. 8 is a longitudinal sectional view of a seat packing separation preventing device for an airbottom head according to another embodiment of the present invention, which is cut along the line E-E of FIG. 7;
9 is a cross-sectional view of an airbottom head employing an apparatus for preventing separation of a seat packing for an airbnt head according to another embodiment of the present invention,
10 is an enlarged view of the area 'D' in FIG.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Like reference numerals refer to like elements throughout the specification. Embodiments described herein will be described with reference to an ideal combined perspective view, an exploded perspective view, a cross-sectional view, a longitudinal sectional view, and an enlarged view of the present invention.

Hereinafter, an apparatus for preventing separation of a seat packing for an airbout head according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG. For convenience of description, the sheet packing separation preventing device for an airbnt head and the airbotthed head employing the separation preventing device according to an embodiment of the present invention will be described together.

1 and 2 are an assembled perspective view and an exploded perspective view, respectively, of an airbottom head employing a seat cushion separation preventing apparatus for an airbnt head according to an embodiment of the present invention. FIG. 4 is an enlarged view of the 'C' region of FIG. 3, and FIG. 5 is an enlarged view of the air vent head of FIG. FIG. 6 is a vertical cross-sectional view of the airbottom head employing the apparatus for preventing separation of a seat packing for an airbnt head according to an embodiment of the present invention, which is cut along the line B-B ' Fig.

1 to 5, an air vent head 1 employing a sheet packing separation prevention device 45 for an airbnt head according to an embodiment of the present invention includes an outer housing 12 forming an outer chamber 12, The float 40, the sheet packing 42, the separation preventing device 45, the shock-absorbing packing 44, the guide bar 50, the filtering net 70 and the protective cover 80 ).

The outer housing 10 is formed by forming an outer chamber 12 in which air as a fluid flows into an air pipe (not shown) connected to the air pipe connecting flange 16 and is discharged to the outside, and the metal material is manufactured by a method such as casting or welding Which is coated with plating and corrosion-resistant paint, is also referred to as an outer tube, and forms the entire skeleton of the airbott head 1.

An air pipe connecting flange 16 for connecting the air pipe to the air pipe is provided at the lower portion of the outer housing 10 and is coupled to the upper cover 24 by a fixing bolt 26 via an upper cover packing 22 An upper cover connecting flange 18 is provided.

On the other hand, a hook-type eye bolt 28 for easily moving the air vent head 1 by a lift means is coupled to the upper cover 24.

In the front portion of the outer housing 10, there is formed a vent hole 14 through which air flows. The ventilation hole 14 is sequentially connected to the metal mesh screen 70 and the protective cover 80 for protecting the screen 70 from the outside by means of fastening bolts 86.

The floating chamber 32 is divided into an outer housing 10 and a partition 30 separated from the outer chamber 12 so that the float 40 can be moved up and down. Is formed. Like the outer housing 10, the floating chamber 32 is made of a metal material by a method such as casting or welding. The floating chamber 32 is coated with a plating and an anti-corrosion paint. The floating chamber 32 is also referred to as an inner cylinder. They may be combined after separate fabrication

In this embodiment, the ventilation holes 14 are formed on the front and rear portions of the outer housing 10, but they may be formed only on the front surface or on two adjacent surfaces.

The float 40 includes a shock absorbing packing 44 attached to the lower end thereof by a guide bar 50 penetratingly connected to the lower portion of the floating chamber 32 and a sheet packing 42 ) In the vertical direction. In the steady state, the float 40 is in the lowered state as shown in FIG. 5, and the air as the fluid flows in accordance with the pressure change so that the inside of the tank of the ship and the outside atmosphere communicate with each other to solve the static pressure condition and the fitting condition. However, in the emergency state in which the fluid such as seawater flows from the outside, the float 40 easily rises through the buoyancy provided by the inflow fluid and contacts the seat packing 42 to keep the airtight state, 32) and the outer chamber (12) to effectively prevent the fluid such as seawater from flowing back into the tank of the ship through the air pipe.

At this time, in order to provide the sheet packing 42 with a supporting force in the circumferential direction of the air passage so that the sheet packing 42 can be adhered well on the circumference of the air passage of the floating chamber 32 and maintain the adhesion, A separation preventing device 45 according to the present invention is additionally proposed.

The release preventing device 45 according to an embodiment of the present invention includes a release control ring member 48 and a release control ring member 48 for controlling the diameter size of the release control ring member 48 as shown in Figures 2-6, (49). Each of these is made of a metal material having a predetermined strength and excellent in corrosion resistance such as stainless steel.

The release preventing ring member 48 provides a supporting force toward the outer circumferential surface of the sheet packing 42 in a state of being attached along the inner circumferential surface of the sheet packing 42 so that the sheet packing 42 is wound around the circumference of the air passage of the floating chamber 32 It should be attached well to the column, and the adhesion should be maintained after attachment. To this end, the release preventing ring member 48 includes an annular ring portion 48a and a pair of screw coupling portions 48b through which the screw receiving hole 48c is inserted.

The annular ring portion 48a is partially cut so that the diameter of the ring portion 48a can be adjusted.

A pair of screw engagement portions 48b are each bent inward from the cut end of the annular ring portion 48a toward the center of the annular ring portion 48a and a screw receiving hole 48c having a screw thread formed at the center thereof is formed have.

The gap adjusting member 49 includes a gap adjusting screw 49a, a gap adjusting nut 49b, and a gap adjusting fixing nut 49c.

The spacing adjusting screw 49a is of a bolt type having a thread and is accommodated in a pair of screw receiving holes 48b so that the separated both ends of the annular ring 48a are spaced apart by a predetermined distance.

The short adjustment nuts 49b are accommodated in both ends of the spacing adjusting screw 49a at the respective inner sides of the screw receiving holes 48b to adjust the spacing of the pair of screw receiving holes 48b, So that the diameter of the annular ring portion 48a is adjusted.

The interval adjusting fixing nut 49c is coupled to the end of the interval adjusting screw 49a with one screw fastening portion 48b interposed therebetween to prevent the flow between the pair of short adjusting nuts 49b to fix the interval.

As described above, by the gap adjusting member 49 of the departure prevention device 45, the supporting force for pushing the sheet packing 42 in the outer peripheral direction from the inner peripheral direction in a state in which the annular ring portion 48a of the release preventing ring member 48 is extended The sheet packing 42 can be easily attached to the circumference of the air passage of the floating chamber 32 so that the sheet packing 42 can maintain the adhesion and prevent the sheet packing 42 from being separated. The seat packing 42 can be easily separated from the circumference of the air passage of the floating chamber 32 by simply releasing the fastening state of the interval adjusting member 49. [

Unlike the present embodiment, the threaded fastening portion 48b is formed such that one pair of the threaded fastening portion 48b is bent in the upper direction or the lower direction instead of the center of the annular ring portion 48a from both cut ends of the annular ring portion 48a, It may be combined with the short adjusting member 49 in a state in which the screw receiving hole 48c is formed in a penetrating manner.

Hereinafter, a sheet packing separation preventing device for an airbnt head according to another embodiment of the present invention will be described with reference to FIGS. 7 and 8, in which the difference from the sheet packing separation preventing device for an airbnt head according to the embodiment of the present invention Will be described in detail.

FIG. 7 is a cross-sectional view of an airbottom head employing an apparatus for preventing separation of a seat packing from an airbnt head according to another embodiment of the present invention, and FIG. 8 is a cross- Fig. 7 is a longitudinal sectional view of a seat packing separation preventing device for an airbnt head according to an embodiment.

The sheet packing separation preventing device 46 for an airbnt head according to another embodiment of the present invention is different from the sheet packing separation preventing device 45 for an airbnt head according to an embodiment of the present invention in that a stainless steel metal material Preventing device 46 is accommodated in the seat packing 42 at all. In other words, in the process of injection molding or the like for manufacturing the sheet packing 42, the ring-shaped separation prevention device 46 is inserted into the interior. The longitudinal section of the escape prevention device 46 may be changed into various shapes such as a "B" shape, a straight line shape, or a "C" shape bent as shown in FIG.

Therefore, according to the sheet packing separation preventing device 46 for an airbnt head according to another embodiment of the present invention, the sheet packing 42 can be adhered well on the circumference of the air passage of the floating chamber 32, In addition to the advantage that the seat packing 42 can be easily detached so as to prevent the seat packing 42 from being separated from the seat packing 42, the problem that the seat packing 42 and the escape prevention device 46 are not in close contact with each other is completely solved, An additional effect that the mutual adhesion is not released can be expected.

Hereinafter, a sheet packing separation prevention device for an airbout head according to another embodiment of the present invention will be described with reference to FIGS. 9 and 10, and a sheet packing separation prevention device for an airbout head according to another embodiment of the present invention, The differences from the device will be described in detail.

The sheet packing separation preventing device 47 for an airbnt head according to another embodiment of the present invention may be applied to a sheet packing separation preventing device 45 for an airboutt head according to an embodiment of the present invention and another embodiment of the present invention The annular ring portion 48a of the release preventing ring member 48 is provided in the interior of the sheet packing 42 while the screw fastening portions 48b Are provided so as to be easily protruded to the outside of the inside of the seat packing 42 by using the gap adjusting member 49. At this time, eight screw accommodating holes 48c are provided so that the two screw accommodating holes 48c are opposed to each other at two angular intervals of 90 degrees with respect to the annular ring portions 48a. Accordingly, the problem that the seat packing 42 and the escape prevention device 47, which are the additional effects of the escape prevention device 46 according to another embodiment of the present invention, are not in close contact with each other is completely solved, It is possible to obtain the effect of the departure prevention device 45 according to the embodiment of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.

1: Air vent head
10: outer housing 12: outer chamber
14: ventilation hole 16: air pipe connection flange
18: upper cover connecting flange 22: upper cover packing
24: upper cover 26, 86: fixing bolt
28: Eyebolt 32: Floating chamber
40: float 42: seat packing
44: Packing Impact
45, 46, 47: release prevention device 48: release prevention ring member
48a: annular ring portion 48b: screw engagement portion
48c: screw receiving hole
49: Spacing member 49a: Spacing screw
49b: Spacing adjusting nut 49c: Spacing adjusting fixing nut
44: shock-absorbing packing 50: guide bar
70: filter net 80: protective cover

Claims (9)

An outer housing which forms an outer chamber which is a passage through which air as a fluid flows or is discharged to the outside through an air pipe connected to a tank of a ship and a ventilation hole is formed in at least a part of a side of the outer chamber, Is a sheet packing separation preventing device for preventing departure of a sheet packing adhered on the circumference of an air flow passage formed in an upper portion of the floating chamber of an airbottom head including a floating chamber for accommodating a float,
A release-preventing ring member for attaching the sheet packing on a circumference of an air passage of the floating chamber and providing a supporting force in an outer circumferential direction from the inner circumferential direction of the sheet packing;
Included
Seat - packing separation prevention device for airbottom head. The method of claim 1,
The release-preventing ring member
And an annular ring type insert-
Seat - packing separation prevention device for airbottom head. The method of claim 1,
The release-preventing ring member
An annular ring part attached along the inner circumferential surface of the sheet packing and partially cut away so as to be adjustable in diameter,
A pair of threaded fastening portions, each of which is bent inwardly or upwardly or downwardly of the annular ring portion from the cut ends of the annular ring portion,
Containing
Seat - packing separation prevention device for airbottom head. 4. The method of claim 3,
Wherein the ring-shaped portion of the release-preventing ring member is coupled to the screw-
[0030]
Further comprising
Seat - packing separation prevention device for airbottom head. 5. The method of claim 4,
The spacing member
A spacing adjusting screw housed at a predetermined length in a pair of screw receiving holes so that the separated both ends of the annular ring portion have predetermined intervals,
And the spacing of the screw receiving holes is adjusted so that the separated both ends of the annular ring portion are spaced apart from each other by a predetermined distance so that the diameter of the annular ring portion A pair of spacing adjusting nuts for adjusting the thickness of the spacer,
A pair of spacing adjustment nuts for fixing the spacing by preventing the flow of the pair of short adjustment nuts between the pair of short adjustment nuts,
Containing
Seat - packing separation prevention device for airbottom head. The method of claim 1,
The release-preventing ring member
An annular ring portion inserted into the interior of the sheet packing and having at least a portion thereof cut off so as to be adjustable in diameter,
Wherein each of the annular ring portions is bent at an inner side, an upper portion, or a lower portion of the annular ring portion from each of both ends of the annular ring portion, and a screw hole having a thread-
Containing
Seat - packing separation prevention device for airbottom head. The method of claim 6,
Wherein the ring-shaped portion of the release-preventing ring member is coupled to the screw-
[0030]
Further comprising
Seat - packing separation prevention device for airbottom head. 8. The method of claim 7,
The spacing member
A spacing adjusting screw housed in a corresponding pair of screw receiving holes so that the corresponding opposite ends of the annular ring portion have predetermined intervals,
And the spacing of the screw receiving holes is adjusted so that the separated both ends of the annular ring portion are spaced apart from each other by a predetermined distance so that the diameter of the annular ring portion A pair of spacing adjusting nuts for adjusting the spacing,
A pair of spacing adjustment nuts for fixing the spacing by preventing the flow of the pair of short adjustment nuts between the pair of short adjustment nuts,
Containing
Seat - packing separation prevention device for airbottom head. The method of claim 6,
The screw-
And a total of 8 pieces are provided so as to face each other at intervals of 90 degrees with respect to the annular ring portion
Seat - packing separation prevention device for airbottom head.

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