KR20130100435A - Plugging jig for hull block leakage test - Google Patents

Plugging jig for hull block leakage test Download PDF

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Publication number
KR20130100435A
KR20130100435A KR1020120021622A KR20120021622A KR20130100435A KR 20130100435 A KR20130100435 A KR 20130100435A KR 1020120021622 A KR1020120021622 A KR 1020120021622A KR 20120021622 A KR20120021622 A KR 20120021622A KR 20130100435 A KR20130100435 A KR 20130100435A
Authority
KR
South Korea
Prior art keywords
jig
hull block
plate
front plate
close contact
Prior art date
Application number
KR1020120021622A
Other languages
Korean (ko)
Inventor
곽태옥
임창호
함경덕
권순성
Original Assignee
대우조선해양 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020120021622A priority Critical patent/KR20130100435A/en
Publication of KR20130100435A publication Critical patent/KR20130100435A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
    • F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

The present invention body 20 having a through hole 25; Rubber barrel 30 is installed to be inflatable on the outer circumferential surface of the body (20); A front plate 40 in close contact with one end of the rubber barrel 30 on the body 20; And a back plate 50 for closely contacting the other end of the rubber barrel 30 on the body 20.
Accordingly, by tightly sealing the non-circular hole with a structure having elasticity in the airtight test using compressed air, there is an effect that can improve the convenience of the blocking treatment and prevent the occurrence of leakage.

Description

Plugging jig for hull block leakage test

The present invention relates to a blocking jig for a gastight test of a hull block, and more specifically, to a tightly sealed non-circular hole with a structure that has elasticity in the airtight test using compressed air, thereby improving the convenience of the blocking process and generating leakage. It relates to a blocking jig for the gas tight test of the hull block that can be prevented.

Normally, during the hull block is made, the block predesign work is carried out to install the equipment and pipes inside the block, and the preliminary design blocks or specimens generated in this process are subjected to the tightness test. In airtight tests, considerable air is required for the blocking of the scallop holes, and if the blocking is poor, frequent leaks occur during the test, causing inconvenience. As a method for compensating for these disadvantages, prior patents such as Korean Patent Application Publication No. 2011-0001103 and Korean Patent Publication No. 0405472 may be referred to.

The former patent is a jig for confirming the leakage of the welded portion of the heating coil pipe installed in the vessel, the tubular shaft for supplying water; A second hex nut for moving the tubular shaft into or out of a heating coil pipe; An end collar for preventing the jig from flowing; A collet for preventing the jig from being separated from the heating coil pipe; A collet cone for allowing several collet units to spread outward from the inside of the heating coil pipe; It is made of a sealing rubber that increases the diameter by the compression and seals between the jig itself and the inner surface of the heating coil pipe. This prevents excessive time and quality deterioration occurring during installation and dismantling of the temporary pipe, thereby improving productivity.

The latter patent has a masking plate formed integrally with the guide pins on the front four corners; A sealing gasket plate inserted into the guide pin; A plurality of floating bars having one end fixed to a rear surface of the masking plate; A cylinder plate to which the other end of the floating bar is fixed; It is composed of a cylinder for driving the cylinder plate back and forth. Accordingly, the effect that can accurately determine the presence or absence of the airtight state for the flow path of the valve body portion is expected.

However, the aforementioned patent is suitable for sealing a circular hole, and thus shows limitations that cannot be applied to non-circular holes, including scalloped holes having a fan shape, in a leading design block of a ship.

1. Republic of Korea Patent Publication No. 2011-0001103 "Jig for heating coil pipe hydraulic test" (published date: February 1, 2011) 2. Republic of Korea Patent Publication No. 0405472 "Sealing Jig for confidentiality test" (published date: November 14, 2003)

An object of the present invention for improving the conventional problems as described above, by tightly sealing the non-circular hole in the structure having elasticity in the airtight test using compressed air to improve the convenience of the blocking treatment and prevent the occurrence of leakage It is to provide a blocking jig for airtight testing of hull blocks.

In order to achieve the above object, the present invention is a body having a through-hole; A rubber tub installed to be inflatable on an outer circumferential surface of the body; A front plate which comes in close contact with one end of a rubber container on the body; And a rear plate in close contact with the other end of the rubber container on the body.

In addition, according to the present invention, the body, the front plate, the rear plate is characterized in that the close contact via the inclined surface, respectively.

In addition, according to the present invention, the front plate and the rear plate is characterized in that it is in close contact with the body via a connecting shaft having a spiral.

In addition, according to a modification of the present invention, the rubber barrel is characterized in that the thickness of the central portion is formed thinner than both ends.

In addition, according to the present invention, the rear plate is characterized in that it is provided with a valve for the injection and discharge of air.

According to the present invention as described above, by tightly sealing the non-circular hole in the structure having elasticity in the airtight test using the compressed air has the effect of improving the convenience of the blocking treatment and prevent the occurrence of leakage.

1 is a block diagram showing the decomposition of the jig according to the invention
Figure 2 is a block diagram showing the assembled jig according to the present invention
3 is a configuration diagram showing a state of use of the jig according to the invention
4 is a configuration diagram showing another use example of the jig according to the present invention;

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a jig for blocking the non-circular hole 15 formed at the corner where the horizontal and vertical plate 10 meets in the airtight test of the preceding design block in the lower part of the engine room. It is not limited to this, but can be applied to various types of holes or pipes. However, the scallop hole is a part in which leakage occurs frequently during the test due to the poor blockage due to the structural contact between the plate 10 at right angles, acute angles, and obtuse angles.

According to the present invention a body 20 having a through hole 25 is provided. The body 20 may use a light metal such as an aluminum alloy and has a through hole 25 for the flow of air on the outer circumferential surface. The trunk 20 selects a tube member (pipe) with the largest diameter that can easily pass through the hole 15.

In addition, according to the present invention, the rubber barrel 30 is installed on the outer circumferential surface of the body 20 to be expandable. The rubber barrel 30 is made of a synthetic rubber material having strength and abrasion resistance along with expandability (elasticity), and is formed in a cylindrical structure covering the entire outer surface of the body 20. Even if the material of the rubber barrel 30 is not developed separately, the smoothness of the operation was confirmed by applying a car or bicycle tire tube.

In addition, according to the present invention, the front plate 40 is in close contact with one end of the rubber barrel 30 on the body 20. The front plate 40 is made of a lightweight metal such as an aluminum alloy or a hard resin, and is formed in the form of a disc to close the opening of one end of the body 20. The front plate 40 does not require accessibility as a tip portion that the operator pushes into the hole 15.

In addition, according to the present invention, the back plate 50 is in close contact with the other end of the rubber barrel 30 on the body 20. The back plate 50 uses a lightweight metal such as an aluminum alloy or a hard resin, and is formed in a disc shape that blocks the opening of the other end of the body 20. The back plate 50 requires an accessibility for injecting air into the rubber barrel 30 using a pneumatic line (not shown) on the site as a rear end that the operator pushes into the hole 15.

At this time, the body 20, the front plate 40, the rear plate 50 is preferably in close contact with each other via the inclined surfaces 22, 42, 52. The inclined surfaces 22, 42, and 52 are formed at the same angle so that the front plate 40 and the back plate 50 are in close contact with the body 20. That is, the front plate 40 and the rear plate 50 gradually adheres to both ends of the rubber barrel 30 along the inclined surface 22 of the body 20 to increase the reliability of airtightness.

On the other hand, the front plate 40 and the back plate 50 is in close contact with the body 20 via the connecting shaft 35 having a spiral. A boss is formed in the center of the front plate 40, and the female spiral part 45 is processed. The center of the back plate 50 forms a through hole 54 through which the connecting shaft 35 can pass. One side of the corner portion 36 forms a corner portion 36 for using a tool. Accordingly, by covering the rubber tube 30 on the outer circumferential surface of the body 20 and tightening the front plate 40 and the rear plate 50 by the connecting shaft 35, and combines as shown in FIG. Instead of rotating the front plate 40 and the rear plate 50, only the connecting shaft 35 is rotated, so there is little risk of damage to the rubber barrel 30, thereby improving durability. Of course, a separate packing (not shown) may be provided at a portion where the rectangular portion 36 of the connecting shaft 35 and the through hole 54 of the rear plate 50 contact.

As a modification of the present invention, the rubber barrel 30 may be formed to have a thinner thickness of the central portion than at both ends. If the central thickness of the rubber tube 30 is thin, the expandability of the center becomes high, and thus the sealing force to the hole 15 is increased. When the thickness increases at both ends of the rubber barrel 30, the adhesion strength between the front plate 40 and the rear plate 50 can be increased.

The back plate 50 of the present invention is provided with a valve 56 for the injection and discharge of air. The valve 56 may adopt a structure for injecting and discharging air into a tire of an automobile or a bicycle. The valve 56 is installed on the rear plate 50 in which the square portion 36 of the connecting shaft 35 is located in consideration of the operator's accessibility.

In FIG. 3, when the assembled blocking jig is pushed into the non-circular hole 15 of the plate 10 and the air is injected through the valve 56, the rubber cylinder 30 expands and the non-circular hole 15 Seal all the angled parts. When the valve 56 is opened after the airtight test is completed in such a state, the rubber tube 30 may be retracted to its original shape and the jig may be taken out.

In FIG. 4, the blocking jig of the present invention may be used for hermetic sealing of the inside of a pipe member (pipe). When air is injected into the body 20, the rubber tube 30 expands and closes over a large area, thereby increasing the airtight force.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: board 15: hole
20: trunk 22, 42, 52: slope
25: through hole 30: rubber tube
35: connecting shaft 36: square
40: front plate 45: female thread
50: rear panel 54: through hole
56: valve

Claims (5)

A body 20 having a through hole 25;
Rubber barrel 30 is installed to be inflatable on the outer circumferential surface of the body (20);
A front plate 40 in close contact with one end of the rubber barrel 30 on the body 20; And
Closing jig for the airtight test of the hull block, characterized in that comprises ;; The method according to claim 1,
The body 20, the front plate 40, the rear plate 50 is the sealing jig for the airtight test of the hull block, characterized in that the close contact via the inclined surface 22, 42, 52, respectively. The method according to claim 1,
The front plate 40 and the rear plate 50 is a tight blockage jig for hull block, characterized in that the close contact with the body 20 via a connecting shaft 35 having a spiral. The method according to claim 1,
The rubber cylinder 30 is a tight blocking jig for testing the hull block, characterized in that to form a thinner thickness of the center portion than the opposite ends. The method according to claim 1,
The rear plate 50 is a tight blockage jig for testing the hull block, characterized in that it comprises a valve 56 for the injection and discharge of air.
KR1020120021622A 2012-03-02 2012-03-02 Plugging jig for hull block leakage test KR20130100435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120021622A KR20130100435A (en) 2012-03-02 2012-03-02 Plugging jig for hull block leakage test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120021622A KR20130100435A (en) 2012-03-02 2012-03-02 Plugging jig for hull block leakage test

Publications (1)

Publication Number Publication Date
KR20130100435A true KR20130100435A (en) 2013-09-11

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Family Applications (1)

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KR1020120021622A KR20130100435A (en) 2012-03-02 2012-03-02 Plugging jig for hull block leakage test

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487217A (en) * 2013-09-30 2014-01-01 中核（天津）机械有限公司 Automatic plugging device for vacuum leak detection
CN104034482A (en) * 2014-06-04 2014-09-10 成都来宝石油设备有限公司 Universal sealing plug for valve pressure-proof sealing test
KR20180084259A (en) * 2017-01-16 2018-07-25 김용이 Automotive hose fixture
CN109050820A (en) * 2018-08-24 2018-12-21 广州海洋地质调查局 A kind of logical compartment quick blocking tool in deck
CN112728114A (en) * 2020-12-22 2021-04-30 全椒赛德利机械有限公司 Through hole sealing plug device for detecting air tightness of radiator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103487217A (en) * 2013-09-30 2014-01-01 中核（天津）机械有限公司 Automatic plugging device for vacuum leak detection
CN104034482A (en) * 2014-06-04 2014-09-10 成都来宝石油设备有限公司 Universal sealing plug for valve pressure-proof sealing test
KR20180084259A (en) * 2017-01-16 2018-07-25 김용이 Automotive hose fixture
CN109050820A (en) * 2018-08-24 2018-12-21 广州海洋地质调查局 A kind of logical compartment quick blocking tool in deck
CN109050820B (en) * 2018-08-24 2023-12-08 广州海洋地质调查局 Quick shutoff instrument in deck cabin hole
CN112728114A (en) * 2020-12-22 2021-04-30 全椒赛德利机械有限公司 Through hole sealing plug device for detecting air tightness of radiator
CN112728114B (en) * 2020-12-22 2022-10-04 滨州英特石化配件有限公司 Through hole sealing plug device for detecting air tightness of radiator

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