KR200310950Y1 - The automatic closing devices for the air pipes of ship tanks - Google Patents

Abstract

The present invention relates to an automatic closing device that is installed at the open end of the air intake and exhaust pipe of the ship tank, more specifically, it is easy to prevent corrosion and plating of parts to prevent corrosion due to the assembly structure of the components in a simple shape Corrosion resistance to seawater is improved, and easy to assemble and dismantle, and to maintain the air pipe of the automatic tank of the ship tank easy maintenance.

According to the present invention, the guide bar insertion hole is drilled in the upper part and the connection tube is fixedly connected to the lower part of the outer cylinder which is open at both sides, the annular packing is inserted along the inner periphery of the opening which is opened in the upper part and the bush is inserted into the lower part An inner cylinder with holes opened and opening at both sides is installed inside the outer cylinder, and a guide bar guide bush is installed at the center of the float installed inside the inner cylinder, and a guide bar having a protrusion valve located at the upper side of the guide bar guide bush. It is inserted into the upper end of the outer cylinder and the lower end of the inner cylinder, and the gasket inserted into the periphery of the opening of the outer cylinder and the inner cylinder is inserted into the gasket groove provided on one side of the side plate installed with the metal net and the protective cover in the vent hole in the middle Provided is an automatic closing device for an air pipe of a ship tank configured to be installed at both openings of an outer cylinder and an inner cylinder.

Description

The automatic closing devices for the air pipes of ship tanks}

The present invention relates to an automatic closing device that is installed at the open end of the air intake and exhaust pipe of the ship tank, more specifically, it is easy to prevent corrosion and plating of parts to prevent corrosion due to the assembly structure of the components in a simple shape Corrosion resistance to seawater is improved, and easy to assemble and dismantle, and to maintain the air pipe of the automatic tank of the ship tank easy maintenance.

The automatic closing device is installed at the open end of the air pipe installed to prevent excessive positive pressure and negative pressure when pumping all tanks of the ship, and is a device for preventing the inflow of foreign substances, flame or seawater.

In general, the automatic closing device is connected to the air pipe of the ship tank and the air in and out of the integrated metal body to induce the flow of fluid inside the tank when the water or oil in the tank is overloaded, and is installed inside the body Float to prevent seawater from entering the air pipe from the air pipe, a metal net installed in the openings on both sides of the body to prevent foreign substances and flames from entering the outside, and a protective cover for protecting the float and the metal net It is.

However, the one-piece metal body used in the conventional automatic closing device has a problem that it is difficult to completely paint the inner surface of the body with a corrosion-resistant paint due to the complex structure produced by the casting and welding method, which causes the ship to operate It has a structural disadvantage that the body inside is rapidly corroded at sea condition. In particular, in the case of a cast body, many types of casting molds are required according to the size of the air pipe, the type of float and the metal mesh, and the cost for manufacturing and maintaining the mold is a structural disadvantage that increases the production cost.

In addition, the cylindrical float installed inside the body of the automatic closing device is applied to the guide bar of one end fixed type to guide the float when it flows out due to water or oil in the tank, and the guide bar of the cantilever structure gradually deflects the packing and the float. There is a structural problem that can not prevent the intrusion of water due to poor contact.

The purpose of the present invention is to assemble the assembly into a plurality of parts in order to solve the conventional structural problems as described above, each part is assembled by rusting and plating in advance, easy to dismantle for maintenance and repair, The present invention provides an automatic closing device for an air pipe of a ship tank having an installation structure of a guide bar that can absorb the impact of the float movement.

1 is an exploded perspective view of the present invention

2 is a cross-sectional view of the present invention

3 is a cross-sectional view "A-A" of FIG.

4 is an operating state diagram of the float

※ Explanation of codes for main parts of drawing

1: guide bar insertion hole 2: outer cylinder 3: connector

4: packing 5: bush inserting hole 6: inner cylinder

7 float 8: guide bar guide bush 9: protrusion valve

10: guide bar 11: lower bush 12: spring

13: Spring seat 14: Cap nut 15: Upper bush

16 vent hole 17 lifting hole 18 metal mesh

19: protective cover 20: side plate 21: gasket groove

22: gasket 23: body fastening bolt 24: air pipe

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

The connecting bar 3 is fixedly connected to the lower portion of the outer cylinder 2 with the guide bar insertion hole 1 drilled in the upper portion and both sides opened, and the annular packing 4 is formed along the inner circumference of the opening drilled in the upper portion. An inner cylinder 6 inserted and inserted into a lower surface of the bush insertion hole 5 and opened at both sides thereof is installed inside the outer cylinder 2, and a center of the float 7 installed inside the inner cylinder 6. A guide bar 10 having a protrusion valve 9 positioned upward is inserted into the guide bar guide bush 8 penetrated therein, and a bush insertion hole in which a lower end of the guide bar 10 is drilled in the lower portion of the inner cylinder 6. (5) is inserted into the lower bush 11 is fixedly fixed to the nut, the upper end of the guide bar 10 is inserted into the spring 12 is inserted into the guide bar insertion hole (1) of the top of the outer cylinder (2) spring seat (13) is inserted into the upper bushing (15) fastened to the cap nut (14) interpolated, the vent hole (16) is drilled in the middle and the lifting hole (17) at the top. The periphery of the opening of the outer cylinder 2 and the inner cylinder 6 in the gasket groove 21 in which the side plate 20 on which the metal mesh 18 and the protective cover 19 are installed on the vent 16 is provided. The gasket 22 to be inserted into is inserted and installed in both openings of the outer cylinder (2) and the inner cylinder (6).

Here, the float 7 may be implemented as described above, or only one float 7 may be installed inside the inner cylinder 6 without the fastening structure associated with the guide bar 10. Then, both side plates 20 are fastened by the body fastening bolt 23 and the nut.

In the figure, reference numeral 24 denotes an air pipe.

As such, the present invention has an advantage in that a plurality of components are combined to facilitate rust prevention and plating operations, and easy maintenance in use. That is, the automatic closing device of the present invention is a simple that can be easily machined and painted work, such as the side plate 20, the outer cylinder (2) and the inner cylinder (6) and the gasket (22) and the body fastening bolt (23) It consists of parts of the structure.

Ventilation according to the present invention is shown in Figs. The air is filtered through the protective cover 19 and the metal mesh 18, the air is introduced into the inner cylinder 6 in which the float 7 is installed through the vent 16 of the side plate 20, Again through the opening in which the packing (4) is fitted on the upper portion of the inner cylinder (6) goes out to the outer cylinder (2). The above process is shown in FIG. 2 and the subsequent process is shown in FIG. That is, as shown in FIG. 3, the air exiting the inner cylinder 6 is communicated along the inner surface of the outer cylinder 2 and the outer side of the inner cylinder 6 and connected to the lower portion of the outer cylinder 2 via a connecting pipe 3. The connection pipe (3) is coupled to the air pipe 24 is to be introduced into the tank of the ship.

As described above, the tank of the ship communicates with the outside air by the present invention to maintain an appropriate air pressure without receiving excessive negative pressure or static pressure.

However, at sea, seawater may enter the tank, and the present invention blocks the inflow of seawater.

That is, when seawater is introduced through the inside of the protective cover 19 as shown in Figure 4, foreign matter is first filtered by the metal mesh 18, the inner cylinder 6 through the vent 16 of the side plate 20 Float 7 is floated by the buoyancy when introduced into the inside of.

The float 7 rises along the guide bar 10, and a projection valve 9 protrudes above the guide bar 10 so that the projection valve 9 guides the guide bar installed in the center of the float 7. It acts as a valve to close the top opening of the bush (8), and with the continuous inflow of seawater, the float (7) is raised at the same time as the guide bar (10), the packing (7) is installed in the opening of the inner cylinder ( It is in close contact with 4) and it is completely sealed.

Thus, the gap between the packing 4 and the float 7 is completely sealed so that seawater cannot enter the air pipe 24.

The spring 12 inserted into the upper end of the guide bar 10 serves to push the guide bar 10 downward to mitigate the impact force for the sudden rise of the float 7, and as the sea water exits the float ( When 7) falls, the return force is added.

In addition, the top of the spring 12 and the guide bar 10 and the top surface of the spring seat 13 are separated by a certain distance, which may cause the guide bar 10 to flow to some extent during irregular movement of the float 7. This is to provide a space that can support the guide bar 10 is not bent while allowing the vertical movement.

On the contrary, the conventional guide bar 10 adopts a method fixed to a specific portion, and thus, the guide bar 10 may be bent or broken by continuous irregular movement of the float 7, and the packing 4 and the float 7 may not be properly contacted. There is a structural problem that does not block the intrusion of water, but the present invention can solve the conventional problems as described above.

In the automatic closing device configured as described above, when the open end of the air pipe 24 is immersed in seawater, the float 7 moving upward by buoyancy is first adhered to the protruding valve 9 of the guide bar 10 and then closely adhered thereto. The guide bar 10 is pushed upward to close the packing 4 and the float 7 to block seawater from entering the air pipe 24, and the foreign matter and flame intrusion from the outside are blocked by the metal mesh 18. .

The present devised as described above can be dismantled using the lifting hole 17 drilled on the upper side of the side plate 20, and the dismantling work is largely divided into the side plate 20 and the outer cylinder 2 and the inner cylinder 6. Easy, there is an advantage that can be easily repaired to the inside of the inner cylinder (6). That is, since the parts composed of a plurality of single parts are easily plated, and the well plated parts are used in combination with the above structure, it is easy to dismantle and maintain.

The present invention has been assembled into a number of parts divided into pieces, each part can be rust-prevented and plated well in advance, which has the effect of improving the corrosion resistance to seawater, and disassembled and maintained by the assembly of the above parts There is an effect that is easy to repair, the guide bar 10 is supported by the spring 12 to prevent the bending of the guide bar 10 to improve the durability of the float (7), easier continuous processing operation Providing assembly and assembly work has the economic effect of enabling mass production.

Claims (3)

The metal mesh 18 and the protective cover 19 are installed at both sides of the integrated body to which the connecting pipe 3 is attached, and the float 7 fitted to the guide bar 10 fixed to the inside of the body moves up and down. In the automatic closing device of the air pipe of the ship tank, the guide bar insertion hole (1) is drilled in the upper portion of the outer tube (2) in which both sides are open fixedly attached so as to communicate with the connection pipe 3, the opening opening in the upper The inner packing 6 of the annular packing 4 is inserted along the inner circumference of the bush, and the bush inserting hole 5 is drilled in the lower surface, and the inner cylinder 6 having both sides opened is installed inside the outer cylinder 2, and the inner cylinder 6 Guide bar guide bush 8 is installed in the center of the float (7) installed inside the inside of the guide bar (10) and the guide bar (10) with the protrusion valve (9) located on the upper guide bar guide bush (8) is inserted into the outer cylinder (2) is fastened to the upper end and the lower end of the inner cylinder (6), the side in which the metal mesh 18 and the protective cover 19 is installed in the vent hole 16 in the center A gasket 22 fitted into the outer periphery of the outer cylinder 2 and the inner cylinder 6 is inserted into the gasket groove 21 concave on one side of the 20 so that both sides of the outer cylinder 2 and the inner cylinder 6 are inserted. Automatic closing device of the air pipe of the ship tank, characterized in that installed in the opening. The lower end of the guide bar (10) is inserted into the lower end bush (11) fixed with a nut in the bush insertion hole (5) drilled in the lower part of the inner cylinder (6), and the upper end is fitted with a spring (12) Automatic closing device of the air pipe of the ship tank inserted in the guide bar insertion hole (1) of the outer cylinder (2) and inserted into the upper bush (15) fastened to the cap nut (14) in which the spring seat (13) is inserted . The metal mesh 18 and the protective cover 19 are installed at both sides of the integrated body to which the connecting pipe 3 is attached, and the float 7 fitted to the guide bar 10 fixed to the inside of the body moves up and down. In the automatic closing device of the air pipe of the ship tank, the connecting pipe (3) is fixedly connected to the lower portion of the outer cylinder (2) with both sides open, and the annular packing (4) along the inner periphery of the opening drilled in the upper portion The inner cylinder 6 having the inserted and open sides is installed inside the outer cylinder 2, and the float 7 installed inside the inner cylinder 6 is installed, and a metal mesh is formed in the vent 16 drilled in the middle thereof. The gasket 22 inserted into the periphery of the opening of the outer cylinder 2 and the inner cylinder 6 is inserted into the gasket groove 21 recessed on one side of the side plate 20 on which the 18 and the protective cover 19 are installed. The automatic closing device of the air pipe of the ship tank, characterized in that it is installed in both openings of the outer cylinder (2) and the inner cylinder (6).