KR102392875B1 - Water jet propulsion pipe watertight kit - Google Patents

Abstract

The present invention relates to a watertight kit for a water jet propeller seawater inlet pipe. According to the present invention, the watertight kit for a water jet propeller seawater inlet pipe comprises: a watertight kit unit which blocks both sides of a duct through which water passes through an impeller of a water jet propeller; and a tube unit coupled to the watertight kit unit and coupled to an inner surface of the duct to block water entering and exiting the duct. The watertight kit unit and the tube unit can block the entry and exit of water passing through the duct in the water and repair the puncture generated in the duct.

Description

Water Jet Propulsion Pipe Watertight Kit {WATER JET PROPULSION PIPE WATERTIGHT KIT}

The disclosed content relates to a watertight kit for water jet propulsion seawater inlet pipe.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application, and the description in this identification is not admitted to be prior art.

Accidents such as collisions at sea or being stranded on coastal reefs frequently occur due to bad weather or negligence of navigation. These ship accidents accompany human and material damage, and in particular, oil tanker accidents pollute the surrounding environment. If the ship is broken and the inside of the hull is empty, emergency blockade using wooden wedges, etc. It depends on the method of welding the steel plate. The conventional welding method takes a lot of work time, and there are problems such as being impossible to work in case of bad weather, and as a result, a large amount of oil is leaked into the sea or a ship is sinking frequently.

On the other hand, ships or ships equipped with water jet thrusters can operate at lower depths compared to ships equipped with captive propeller thrusters, and have a smooth boarding feeling, increase in efficiency and speed due to reduced loss of propulsion, and secure spacious cabin space. Due to its advantages, it is increasingly being used.

However, since two or more metal objects are adjacent to each other in the duct part where the water jet propulsion device is mounted, a potential difference occurs between different metals, which increases the number of cases where metal corrodes or breaks.

In order to repair these corroded parts or holes, it was repaired by underwater welding as a temporary method in the prior art, but it is difficult to precisely weld to the exact hole point during underwater welding, and the same corrosion proceeds within a few months after repair because the welding strength is low compared to the dry state. As a result, problems such as re-breaking occur. Therefore, measures for this are required.

1. Republic of Korea Patent No. 10-2189957 (Notice on Dec. 11, 2020)

The present invention is to solve the above problems, and in order to effectively repair the hole in the duct of the water jet propulsion unit in the water, it is possible to repair the hole in the state that water is removed by sealing both sides of the duct with a watertight kit unit and a tube unit. It aims to provide a watertight kit for water jet propulsion seawater inlet pipe.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

The watertight kit for seawater inlet pipe for water jet propulsion according to the present invention is a watertight kit unit that blocks both sides of the duct through which water passing through the impeller of the water jet propulsion unit enters and exits, and the watertight kit unit is combined with the inner surface of the duct, It includes a tube unit that blocks water entering and exiting the duct, and blocks the ingress of water passing through the duct with the watertight kit unit and the tube unit in water, and can repair the hole generated in the duct.

The watertight kit unit includes a first watertight kit unit for blocking one side of the duct, and a second watertight kit unit for blocking the other side of the duct, wherein the first watertight kit unit is an upper watertight unit located on the upper side It may include a kit unit, and a lower watertight kit unit located under the upper watertight kit unit and coupled to the upper watertight kit unit.

The upper watertight kit unit includes a first upper plate part forming one side, a second upper plate part forming the other side, and a connection upper part coupling the first upper plate part and the second upper plate part, and the connection upper part is the first The upper plate part and the second upper plate part are coupled at a predetermined distance along the edge along the edge to form a tube receiving upper groove in which the tube unit is accommodated, and the lower watertight kit unit is a first lower plate forming one side part, a second lower plate part forming the other side, and a connection lower part coupling the first lower plate part and the second lower plate part, wherein the connecting lower part is an edge inside the rim of the first lower plate part and the second lower plate part It is coupled with the rim at a predetermined interval along the to form a tube receiving groove in which the tube unit is accommodated.

The first upper plate may include a coupling groove, and the upper watertight kit unit may be screwed to the lower watertight kit unit through the coupling groove.

The upper watertight kit unit includes an upper shaft coupling groove corresponding to the drive shaft passing through the duct, and the upper watertight kit unit is coupled to the upper side of the drive shaft through the upper shaft coupling groove, and the lower watertight kit The unit may include a lower shaft coupling groove corresponding to the drive shaft, and the lower watertight kit unit may be coupled to a lower side of the drive shaft through the lower shaft coupling groove.

The first upper plate portion is inclined from the edge portion to the central portion, the second upper plate portion includes an inclination corresponding to the first upper portion portion, and the first lower plate portion is inclined from the edge portion to the central portion, and The second lower plate part may include an inclination corresponding to the first upper plate part, and the inclinations of the first upper plate part and the first lower plate part may be symmetrical to each other.

The watertight kit for water jet propulsion seawater inlet pipe according to the present invention further comprises a coupling part for coupling the upper watertight kit unit and the lower watertight kit unit separated up and down, wherein the coupling part includes the upper shaft coupling groove and the lower shaft coupling groove It is located on the left side of the upper watertight kit unit, the lower watertight kit unit, and the left coupling part coupled to the drive shaft, and the upper shaft coupling groove and the lower shaft coupling groove located on the right side of the upper watertight kit unit, the lower watertight unit It may include a kit unit, and a right coupling unit coupled to the drive shaft.

The water-tight kit for water jet propulsion seawater inlet pipe according to the present invention is coupled between the upper shaft coupling groove and the lower shaft coupling groove and the drive shaft, and further includes an elastic material coupling part for blocking the entry and exit of the fluid. can

The water-tight kit for water jet propulsion seawater inlet pipe according to the present invention is coupled between the upper water-tight kit unit and the lower water-tight kit unit and may further include an upper and lower elastic coupling unit for blocking the ingress of fluid including an elastic material.

The tube unit includes an elastic material and may include an air injection unit into which air is injected.

The water-tight kit for water jet propulsion seawater inlet pipe according to the present invention may further include a handle part coupled to the first lower plate part.

In the watertight kit for water jet propulsion seawater inlet according to the present invention, one side is coupled with the first watertight kit unit and the other side is coupled with the second watertight kit unit, so that the separation distance between the first watertight kit unit and the second watertight kit unit It may further include a support for maintaining the.

The watertight kit unit and tube unit seal both sides of the duct in the water to repair the hole in a dry state with water removed, enabling more precise welding than underwater work, improving welding efficiency and strength, improving the durability and stability of the duct .

The watertight kit unit is separated into an upper watertight kit unit and a lower watertight kit unit, so installation and removal are easy.

There is a tube accommodating groove between the first upper and lower plate parts and the second upper and lower plate parts, so that the tube unit can effectively block between the duct and the watertight kit unit by expansion.

Using the coupling part, the axial elastic coupling part, and the upper and lower elastic coupling part, it effectively seals between the watertight kit unit, the drive shaft and the duct to dry the first watertight kit unit and the second watertight kit unit, so that the painting work for the holes The anti-corrosion effect is excellent.

In addition, as the watertight kit unit is easy to install and remove, self-inspection for corrosion and holes is possible at any time. is excellent

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view of a coupling state of a water jet propulsion seawater inlet pipe watertight kit according to an embodiment of the disclosed subject matter.
Figure 2 is a perspective view of a watertight kit unit of a water jet propulsion seawater inlet pipe watertight kit according to an embodiment of the disclosed subject matter.
Figure 3 is an upper and lower separated perspective view of the watertight kit unit of the water jet propulsion seawater inlet pipe watertight kit according to an embodiment of the disclosed subject matter.
4 is a front view of the first upper and lower plates of the water-tight kit for the water jet propulsion seawater inlet pipe according to an embodiment of the disclosed subject matter.
5 is a side view of a water-tight kit unit of a water jet propulsion seawater inlet pipe watertight kit according to an embodiment of the disclosed subject matter.
6 is a perspective view of a water jet propulsion seawater inlet pipe watertight kit coupling part according to an embodiment of the disclosed subject matter.
Figure 7 is a perspective view of the water jet propeller seawater inlet pipe watertight kit support unit according to an embodiment of the disclosed subject matter.

Hereinafter, with reference to the accompanying drawings, the configuration and effects of preferred embodiments will be described. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals refer to the same components throughout the specification, and reference numerals for the same components in individual drawings will be omitted.

Hereinafter, a watertight kit 900 for a water jet propulsion seawater inlet pipe according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a state diagram of a water jet propulsion seawater inlet pipe watertight kit 900 according to an embodiment of the disclosed subject matter, and FIG. 2 is a water jet propeller seawater inlet pipe watertight kit 900 watertightness according to an embodiment of the disclosed subject matter. It is a perspective view of the kit unit 100, and FIG. 3 is an upper and lower separated perspective view of the watertight kit unit 100 of the water jet propulsion seawater inlet pipe watertight kit 900 according to an embodiment of the disclosed contents, and FIG. 4 is one of the disclosed contents It is a front view of the first upper and lower plate portions 1310 and 1410 of the watertight kit 900 for the water jet propulsion seawater inlet pipe according to the embodiment.

The present invention relates to a watertight kit 900 for a water jet propulsor seawater inlet pipe. ) by sealing both sides of the duct 30 with the watertight kit unit 100 and the tube unit 200 to effectively repair the hole in the water, the hole can be repaired while the water 20 is removed. . Watertight kit 900 for water jet propulsion seawater inlet pipe according to an example of the present invention is a watertight kit unit 100, a tube unit 200, a coupling part 300, an axial elastic coupling part 400, an upper and lower elastic coupling part ( 500), a handle portion 600 and a support portion 700, and the like.

The watertight kit 900 for water jet propulsion seawater inlet pipe according to the present invention blocks both sides of the duct 30 through which the water 20 passing through the impeller 10 of the water jet propulsion unit 100, and a tube unit 200 coupled with the watertight kit unit 100 and coupled with the inner surface of the duct 30 to block the water 20 entering and exiting the duct 30, the watertight kit unit 100 in the water. It is possible to block the entry and exit of the water 20 passing through the duct 30 with the tube unit 200 and repair the hole generated in the duct 30 , and the watertight kit unit 100 is one side of the duct 30 . A first watertight kit unit 110 for blocking, and a second watertight kit unit 120 for blocking the other side of the duct 30, the first watertight kit unit 110 is, the upper watertight located on the upper side It may include a kit unit 1300, and a lower watertight kit unit 1400 located below the upper watertight kit unit 1300 and coupled to the upper watertight kit unit 1300, and the upper watertight kit unit 1300 is , a first upper plate part 1310 forming one side, a second upper plate part 1320 forming the other side, and a connection upper part 1330 for coupling the first upper plate part 1310 and the second upper plate part 1320, and , the connection upper part 1330 is coupled with the rim along the rim at a predetermined distance from the inside of the rim of the first upper plate part 1310 and the second upper plate part 1320 to accommodate the tube unit 200, the tube receiving upper groove 1350 ), and the lower watertight kit unit 1400 includes a first lower plate portion 1410 forming one side, a second lower plate portion 1420 forming the other side, and a first lower plate portion 1410 and a first It includes a connection lower part 1430 for coupling the two lower plate parts 1420, and the connection lower part 1430 is formed from the inside of the rims of the first lower plate part 1410 and the second lower plate part 1420 along the rim and a predetermined distance. may form a tube receiving groove 1450 in which the tube unit 200 is accommodated, the first upper plate part 1310 includes a coupling groove 1311, and the upper watertight kit unit 1300 is coupling groove (1311) Through the lower watertight kit unit 1400 may be screwed.

As can be seen from the example of FIG. 1 or FIG. 2, the watertight kit unit 100 blocks both sides of the duct 30 through which the water 20 passing through the impeller 10 of the water jet propulsion unit enters and exits the fluid. It serves to prevent entry and exit, and may include a first watertight kit unit 110 and a second watertight kit unit 120 .

As can be seen from the example of FIG. 1 or FIG. 2, as an example, the first watertight kit unit 110 corresponds to one side of the watertight kit unit 100 on both sides blocking the duct 30, the upper It may include a watertight kit unit 1300 and a lower watertight kit unit 1400 .

As can be seen from the example of FIG. 1 or FIG. 2, as an example, the second watertight kit unit 120 corresponds to the other side of the watertight kit unit 100 on both sides blocking the duct 30, the second Since it is formed in the same way as the first watertight kit unit 110 , only the first watertight kit unit 110 will be described below. However, depending on the size of the duct 30, the second watertight kit unit 120 may be reduced or expanded to be larger or smaller than the first watertight kit unit 110 .

The upper watertight kit unit 1300 is located on the upper side of the first watertight kit unit 110, and is combined with the lower watertight kit unit 1400 to be described later to seal one side of the duct 30. It can serve, It may include a first upper plate part 1310, a second upper plate part 1320, a connection upper part 1330, a tube receiving upper groove 1350, and an upper shaft coupling groove 1370, and the like.

The first upper plate part 1310 is to form one side of the upper watertight kit unit 1300, and the first watertight kit unit 110 and the second watertight kit unit 120 that block both sides of the duct 30 are facing each other. It forms a surface, and may include a coupling groove 1311 .

3 or 4, the coupling groove 1311 is formed in the first upper plate portion 1310, and the upper watertight kit unit 1300 and the lower watertight kit unit through the coupling groove 1311. (1400) can be screwed. For example, the coupling groove 1311 may be formed symmetrically on both sides of the upper shaft coupling groove 1370 to be described later at the portion coupled to the first lower plate 1410, and the upper watertight kit unit through the coupling groove 1311. (1300) and the lower watertight kit unit (1400) may be formed to secure a space for screwing.

The second upper plate part 1320 forms the other side of the upper watertight kit unit 1300, and forms a surface in contact with the fluid on the outside of the first watertight kit unit 110 blocking one side of the duct 30. It can act as a barrier to fluid.

As can be seen from the example of FIG. 2 or FIG. 3 , the connection upper part 1330 combines the first upper plate part 1310 and the second upper plate part 1320 , and the first upper plate part 1310 and the second upper plate part 1320 . ) may be combined so that the rim protrudes at a predetermined distance from the rim along the rim from the inside of the rim.

As can be seen from the example of FIG. 2 or FIG. 3 , the tube receiving upper groove 1350 is a groove formed concavely between the first upper plate part 1310 and the second upper plate part 1320 and the connecting upper part 1330, which will be described later. It can serve to accommodate the tube unit (200).

The lower watertight kit unit 1400 is located on the lower side of the first watertight kit unit 110, and may serve to seal one side of the duct 30 by combining with the upper watertight kit unit 1300, the first It may include a lower plate portion 1410 , a second lower plate portion 1420 , a connection lower portion 1430 , a tube receiving groove 1450 , and a lower shaft coupling groove 1470 .

The first lower plate portion 1410 is to form one side of the lower watertight kit unit 1400 , and the first watertight kit unit 110 and the second watertight kit unit 120 blocking both sides of the duct 30 . The lower side of the viewing surface may be formed.

The second lower plate portion 1420 forms the other side of the lower watertight kit unit 1400 , and forms a lower surface in contact with the fluid outside of the first watertight kit unit 110 blocking one side of the duct 30 . This can act as a barrier to fluid.

As can be seen from the example of FIG. 2 or FIG. 3 , the connection lower part 1430 connects the first lower plate part 1410 and the second lower plate part 1420 , and the first lower plate part 1410 and the second From the inside of the edge of the lower plate portion 1420 along the edge, the edge and the edge may be coupled to protrude at a predetermined interval.

2 or 3, the tube receiving groove 1450 is a groove formed concavely between the first lower plate part 1410 and the second lower plate part 1420 and the connection lower part 1430. , may serve to accommodate the lower side of the tube unit 200 to be described later.

The upper watertight kit unit 1300 includes an upper shaft coupling groove 1370 corresponding to the drive shaft 40 passing through the duct 30, and the upper watertight kit unit 1300 has an upper shaft coupling groove 1370. It is coupled to the upper side of the drive shaft 40 through the lower watertight kit unit 1400 includes a lower shaft coupling groove 1470 corresponding to the drive shaft 40, and the lower watertight kit unit 1400 is a lower shaft coupling. It may be coupled to the lower side of the drive shaft 40 through the groove 1470 .

3 or 4, the upper shaft coupling groove 1370 is formed in the upper watertight kit unit 1300, the groove is formed in a shape corresponding to the drive shaft 40, and the upper watertightness is formed. The kit unit 1300 may serve to be inserted and coupled to the upper side of the drive shaft 40 . For example, the upper shaft coupling groove 1370 may be formed through the first upper plate part 1310, the connecting upper part 1330, and the second upper plate part 1320 in the central lower part of the upper watertight kit unit 1300 .

The lower shaft coupling groove 1470 is formed in the lower watertight kit unit 1400 , the groove is formed in a shape corresponding to the drive shaft 40 , and the lower watertight kit unit 1400 is inserted under the drive shaft 40 . It can play a role in binding. For example, the lower shaft coupling groove 1470 may be formed through the first lower plate portion 1410, the connecting lower portion 1430, and the second lower plate portion 1420 in the upper central portion of the lower watertight kit unit 1400. there is.

5 is a side view of the watertight kit unit 100 of the water jet propulsion seawater inlet pipe watertight kit 900 according to an embodiment of the disclosed subject matter.

The first upper plate part 1310 is inclined from the edge to the central part, the second upper plate part 1320 includes an inclination corresponding to the first upper plate part 1310, and the first lower plate part 1410 is from the edge part. An inclination is formed in the central portion, the second lower plate portion 1420 includes an inclination corresponding to the first upper plate portion 1310, and the inclinations of the first upper plate portion 1310 and the first lower plate portion 1410 are to be symmetrical to each other. can

As can be seen from the example of FIG. 5, as an example, the first upper plate portion 1310 may be formed to be inclined from a portion spaced a predetermined length from the edge to a portion spaced a predetermined length from the central upper shaft coupling groove 1370, The second upper plate part 1320 may include an inclination corresponding to the first upper plate part 1310 . For example, the first lower plate portion 1410 may be formed to be inclined from a portion spaced apart by a predetermined length from the edge to a portion spaced a predetermined length from the central lower shaft coupling groove 1470, and the second lower plate portion 1420 may be 1 It may include an inclination corresponding to the lower plate portion 1410 . As can be seen from the example of Figure 5, for example, the upper watertight kit unit 1300 and the lower watertight kit unit 1400 may be formed to form a symmetrical inclination.

6 is a perspective view of the water jet propulsion seawater inlet pipe watertight kit 900 coupling part 300 according to an embodiment of the disclosed subject matter.

The water jet propulsion seawater inlet pipe watertight kit 900 further includes a coupling unit 300 for coupling the upper watertight kit unit 1300 and the lower watertight kit unit 1400 separated vertically, and the coupling unit 300 is , located on the left side of the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470, the upper watertight kit unit 1300, the lower watertight kit unit 1400, and the left coupling part coupled to the drive shaft 40 ( 310), and located on the right side of the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470, and coupled to the upper watertight kit unit 1300, the lower watertight kit unit 1400, and the drive shaft 40 It may include a junction 320, and is coupled between the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470 and the drive shaft 40, and includes an elastic material to block the entry and exit of the fluid. It may further include an upper and lower elastic coupling part 500 coupled between the unit 400 and the upper watertight kit unit 1300 and the lower watertight kit unit 1400 and blocking the ingress of fluid including an elastic material.

As can be seen from the example of FIG. 6 , the coupling part 300 serves to couple the upper and lower watertight kit unit 1300 and the lower watertight kit unit 1400 separated up and down, and the left coupling part 310 . and a right coupling part 320 , and the like.

The left coupling part 310 is located on the left side of the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470 , and the upper watertight kit unit 1300 , the lower watertight kit unit 1400 , and the drive shaft 40 . ) can play a role in combining As can be seen from the example of FIG. 6 , for example, the left coupling part 310 may include a semicircular shape in a shape corresponding to the half shape of the drive shaft 40 . For example, the left coupling part 310 is one side of the upper watertight kit unit 1300 and the lower watertight kit unit 1400 to combine the upper and lower watertight kit unit 1300 and the lower watertight kit unit 1400 separated up and down. You can combine the upper and lower left. For example, the left coupling part 310 may be screwed to the upper watertight kit unit 1300 and the lower watertight kit unit 1400 .

The right coupling part 320 is located on the right side of the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470 , and the upper watertight kit unit 1300 , the lower watertight kit unit 1400 , and the drive shaft 40 . may play a role in binding As can be seen from the example of FIG. 6 , for example, the right coupling part 320 may include a semicircular shape in a shape corresponding to the half shape of the drive shaft 40 . For example, the right coupling part 320 is one side of the upper watertight kit unit 1300 and the lower watertight kit unit 1400 to combine the upper and lower watertight kit unit 1300 and the lower watertight kit unit 1400 separated up and down. You can combine the upper and lower right. For example, the right coupling part 320 may be screwed to the upper watertight kit unit 1300 and the lower watertight kit unit 1400 . For example, the right coupling part 320 may be formed in a shape symmetrical to the left coupling part 310 so that both ends contact each other so that there is no gap.

As can be seen from the example of FIG. 6 , the axial elastic coupling part 400 is coupled between the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470 and the drive shaft 40 , and includes an elastic material. Thus, the upper shaft coupling groove 1370 and the lower shaft coupling groove 1470 and the drive shaft 40 may serve to block fluid from entering and exiting.

The upper and lower elastic coupling unit 500 is coupled between the upper watertight kit unit 1300 and the lower watertight kit unit 1400, and includes an elastic material between the upper watertight kit unit 1300 and the lower watertight kit unit 1400. It may serve to block the ingress of fluid.

The axial elastic coupling part 400 and the upper and lower elastic coupling part 500 are the first and second watertight kit units 110 and 120 installed on both sides of the duct 30 to further strengthen the blocking of the outside and the inside, so that even with strong water pressure, It may serve to prevent the fluid from flowing into the first and second watertight kit units (110, 120).

7 is a perspective view of the water jet propulsion seawater inlet pipe watertight kit 900 support unit 700 according to an embodiment of the disclosed subject matter.

The tube unit 200 includes an elastic material and may include an air injection unit 210 into which air is injected. In addition, the water jet propulsion seawater inlet pipe watertight kit 900 has a handle 600 coupled to the first lower plate 1410, and one side is coupled to the first watertight kit unit 110 and the other side is a second watertight kit It may further include a support unit 700 coupled to the unit 120 to maintain a separation distance between the first watertight kit unit 110 and the second watertight kit unit 120 .

The tube unit 200 is to be coupled with the inner surface of the watertight kit unit 100 and the duct 30, and blocks the gap between the watertight kit unit 100 and the duct 30 to prevent the fluid entering and leaving the duct 30. It may serve to block, and may include an air injection unit 210 .

As can be seen from the example of FIG. 1 or FIG. 2, as an example, the tube unit 200 is coupled with the watertight kit unit 100 and passes between the watertight kit unit 100 and the duct 30 in water ( 20) to make a space without water 20 between the first watertight kit unit 110 and the second watertight kit unit 120 by blocking the entry and exit of the watertight kit unit 120 to efficiently repair the holes generated in the duct 30 in a dry state. can do.

The air injection unit 210 may serve as an inlet for injecting air into the tube unit 200 . For example, after inserting the watertight kit unit 100 into the duct 30 , air is injected into the tube unit 200 coupled to the tube receiving grooves 1350 and 1450 to expand the tube unit 200 . By blocking the gap between the 100 and the duct 30 , it is possible to block the inflow of the fluid between the watertight kit unit 100 and the duct 30 .

As can be seen from the example of FIG. 3 or FIG. 4 , the handle portion 600 is coupled to the first lower plate portion 1410 , and the user grips the first lower plate portion 1410 to push, pull, or turn the watertight It may serve to install or remove the kit unit 100 .

The support unit 700 has one side coupled to the first watertight kit unit 110 and the other side to be coupled to the second watertight kit unit 120 , the first watertight kit unit 110 and the second watertight kit unit 120 . ) can play a role in keeping the distance from each other by preventing them from falling inward due to external water pressure.

As can be seen from the example of FIG. 7 , as an example, the support unit 700 is a first watertight kit unit 110 and a second watertight kit unit 120 for supporting the upper watertight kit unit 1300 on both sides. The support unit 700 and the second support unit 700 for supporting the lower watertight kit unit 1400 on both sides of the first watertight kit unit 110 and the second watertight kit unit 120 may be included.

The present invention relates to a watertight kit 900 for a water jet propulsor seawater inlet pipe, and the first watertight kit unit 110 and Seawater inflow of water jet propulsion that can efficiently increase durability and reduce costs by making a space without water 20 between the second watertight kit units 120 and repairing the holes in the duct 30 in a dry state. It relates to a tube watertight kit (900).

By sealing both sides of the duct 30 with the watertight kit unit 100 and the tube unit 200 in the water, the hole can be repaired in a dry state with the water 20 removed. The strength is improved, and the durability and stability of the duct 30 are improved. The watertight kit unit 100 is separated into an upper watertight kit unit 1300 and a lower watertight kit unit 1400 to simplify installation and removal. There are tube accommodating grooves 1350 and 1450 between the first upper and lower plate parts 1310 and 1410 and the second upper and lower plate parts 1320 and 1420, so that the tube unit 200 expands efficiently with the duct 30 and the watertight kit unit. (100) can be intercepted. The first watertightness by effectively sealing between the watertight kit unit 100 and the drive shaft 40 and the duct 30 using the coupling part 300 , the axial elastic coupling part 400 , and the upper and lower elastic coupling parts 500 . By making the space between the kit unit 110 and the second watertight kit unit 120 in a dry state, it is possible to paint the holes, etc., so that the anti-corrosion effect is excellent. In addition, as the watertight kit unit 100 is easy to install and remove, self-inspection for corrosion and puncture is possible at any time. The cost-saving effect is excellent.

Although preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical spirit of the present invention. Therefore, it should be understood that there may be various equivalents and modifications that can be substituted for them at the time of filing the present application. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from the concept of equivalents should be construed as being included in the scope of the present invention.

10: impeller
20: water, seawater
30: duct
40: drive shaft
100: watertight kit unit
110: first watertight kit unit
120: second watertight kit unit
1300: upper watertight kit unit
1310: first upper plate part
1311: coupling groove
1320: second upper plate part
1330: upper connection
1350: tube receiving upper groove
1370: upper shaft coupling groove
1400: lower watertight kit unit
1410: first lower plate part
1420: second lower plate part
1430: lower connection
1450: tube receiving lower groove
1470: lower shaft coupling groove
200: tube unit
210: air inlet
300: coupling part
310: left coupling part
320: right coupling part
400: axial elastic coupling part
500: upper and lower elastic coupling part
600: handle part
700: support
900: water jet propulsion seawater inlet pipe watertight kit

Claims (12)

Watertight kit unit for blocking both sides of the duct through which water passing through the impeller of the water jet propulsion unit; and
It includes; a tube unit coupled to the watertight kit unit and coupled to the inner surface of the duct to block water entering and exiting the duct;
A water-tight kit for a seawater inlet pipe for water jet propulsion that blocks the entry of water passing through the duct from the water to the watertight kit unit and the tube unit and repairs a hole generated in the duct.
The method according to claim 1,
The watertight kit unit,
a first watertight kit unit blocking one side of the duct; and
It includes; a second watertight kit unit that blocks the other side of the duct.
The first watertight kit unit,
The upper watertight kit unit located on the upper side; and
A water-tight kit for water jet propulsion including; a lower water-tight kit unit located below the upper water-tight kit unit and coupled to the upper water-tight kit unit.
3. The method according to claim 2,
The upper watertight kit unit,
a first upper plate portion forming one side;
a second upper plate portion forming the other side; and
Including; a connection upper portion for coupling the first upper plate portion and the second upper plate portion,
The connection upper part is coupled with the rim along the rim from the inside of the rim of the first upper plate part and the second upper plate part at a predetermined interval to form a tube receiving upper groove in which the tube unit is accommodated,
The lower watertight kit unit,
A first lower plate portion forming one side;
a second lower plate portion forming the other side; and
and a lower connecting portion for coupling the first lower plate portion and the second lower plate portion;
The connection lower part is coupled with the rim along the rim at a predetermined distance from the inside of the rim of the first lower plate part and the second lower plate part to form a tube receiving groove in which the tube unit is accommodated. .
4. The method according to claim 3,
The first upper plate portion includes a coupling groove,
The upper watertight kit unit is a watertight kit for a water jet propulsion seawater inlet pipe that is screwed to the lower watertight kit unit through the coupling groove.
3. The method according to claim 2,
The upper watertight kit unit includes an upper shaft coupling groove corresponding to the drive shaft passing through the duct,
The upper watertight kit unit is coupled to the upper side of the drive shaft through the upper shaft coupling groove,
The lower watertight kit unit includes a lower shaft coupling groove corresponding to the drive shaft,
The lower watertight kit unit is a watertight kit for a water jet thruster seawater inlet pipe coupled to the lower side of the drive shaft through the lower shaft coupling groove.
4. The method according to claim 3,
The first upper plate portion is inclined from the edge portion to the center portion,
The second upper plate portion includes a slope corresponding to the first upper plate portion,
The first lower plate portion is inclined from the edge portion to the center portion,
The second lower plate portion includes a slope corresponding to the first upper plate portion,
The inclination of the first upper plate part and the first lower plate part is symmetrical to each other.
6. The method of claim 5,
It further includes; a coupling unit for coupling the upper watertight kit unit and the lower watertight kit unit separated up and down.
The coupling part,
a left coupling part located on the left side of the upper shaft coupling groove and the lower shaft coupling groove and coupled to the upper watertight kit unit, the lower watertight kit unit, and the drive shaft; and
A water-tight kit for water jet propulsion including a; located on the right side of the upper shaft coupling groove and the lower shaft coupling groove and coupled to the upper watertight kit unit, the lower watertight kit unit, and the drive shaft.
6. The method of claim 5,
A water-tight kit for water jet propulsion further comprising: a shaft elastic coupling part coupled between the upper shaft coupling groove and the lower shaft coupling groove and the drive shaft, and blocking the entry and exit of the fluid, including an elastic material.
3. The method according to claim 2,
Water-tight kit for water jet propulsion further comprising a; is coupled between the upper watertight kit unit and the lower watertight kit unit and includes an elastic material and an upper and lower elastic coupling part for blocking the ingress of fluid.
The method according to claim 1,
The tube unit includes an elastic material, and an air injection unit into which air is injected; Water jet propulsion pipe watertight kit including a seawater inlet pipe.
4. The method according to claim 3,
The water jet propeller seawater inlet pipe watertight kit further comprising; a handle part coupled to the first lower plate part.
3. The method according to claim 2,
Water jet propulsion further comprising a; one side is coupled to the first watertight kit unit and the other side is coupled to the second watertight kit unit to maintain a separation distance between the first watertight kit unit and the second watertight kit unit. Seawater inlet pipe watertight kit.

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