KR101713052B1 - Safety apparatus for water tightening test of plastic corrugated pipe - Google Patents

Safety apparatus for water tightening test of plastic corrugated pipe Download PDF

Info

Publication number
KR101713052B1
KR101713052B1 KR1020150044785A KR20150044785A KR101713052B1 KR 101713052 B1 KR101713052 B1 KR 101713052B1 KR 1020150044785 A KR1020150044785 A KR 1020150044785A KR 20150044785 A KR20150044785 A KR 20150044785A KR 101713052 B1 KR101713052 B1 KR 101713052B1
Authority
KR
South Korea
Prior art keywords
synthetic resin
housing
sliding block
wave tube
outside
Prior art date
Application number
KR1020150044785A
Other languages
Korean (ko)
Other versions
KR20160117740A (en
Inventor
이천구
Original Assignee
미래이앤시주식회사
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 미래이앤시주식회사 filed Critical 미래이앤시주식회사
Priority to KR1020150044785A priority Critical patent/KR101713052B1/en
Publication of KR20160117740A publication Critical patent/KR20160117740A/en
Application granted granted Critical
Publication of KR101713052B1 publication Critical patent/KR101713052B1/en

Links

Images

Classifications

    • 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
    • G01M3/022—Test plugs for closing off the end of a pipe
    • 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
    • G01M3/28—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • 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
    • G01M3/28—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2846—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for tubes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

It is used to seal the watertightness test section of the synthetic resin wave tube. It prevents plastic resin tube tube from being discharged out of the synthetic resin wave tube by the air pressure inside the synthetic resin wave tube and discharges it quickly and easily to the synthetic resin wave tube. A safety device for testing is disclosed. The safety device for watertight test of a synthetic resin corrugated pipe comprises a housing having a through hole formed therein, a sliding block having a plurality of connecting grooves slidably coupled to the housing and having through holes concentric with the through holes of the housing, When the sliding block is protruded to the outside of the housing, the sliding block is rotated to unfold to the outside of the housing and is supported on the inner circumferential surface of the crest portion of the synthetic resin wave tube. When the sliding block is inserted into the housing, And a support bar rotated to be inserted into the connection groove.

Description

Technical Field [0001] The present invention relates to a SAFETY APPARATUS FOR WATER TIGHTENING TEST OF PLASTIC CORRUGATED PIPE,

The present invention relates to a safety device for watertight test of a synthetic resin corrugated pipe, and more particularly to a safety device for a watertight test of a synthetic resin corrugated pipe used in a watertightness test for confirming the connection state of synthetic resin corrugated pipes for underground filling of communication cables and electric wires.

Generally, a cable such as a communication cable or an electric wire is formed by using a drilling rig, and a synthetic wave tube is installed in the tube in a plurality of rows and columns, and then embedded in the synthetic resin wave tube.

At this time, in the case of the synthetic resin corrugated pipe, the synthetic resin corrugated pipe is installed to extend by the connection socket with a length corresponding to the length of the cable, and then the synthetic resin corrugated pipe is embedded in the channel, After the operation, a cable is inserted into the synthetic resin wave tube to complete the embedding work of the cable.

In the case of such a synthetic resin corrugated pipe, when the connection socket is not properly connected to the synthetic resin corrugated pipe, or when the synthetic resin corrugated pipe is impacted when the synthetic corrugated pipe is completely covered, damage to the synthetic resin corrugated pipe occurs, Groundwater flows into the pipeline through the damaged part.

At this time, the groundwater includes the surrounding soil where the synthetic resin corrugated pipe is buried, and flows into the synthetic resin corrugated pipe in a short time to sink the ground, thereby causing a sink hole.

On the other hand, in the case of a cable such as a communication cable or an electric wire embedded in the synthetic resin wave tube, it is generally replaced every 30 years. When the groundwater flows into the synthetic resin wave tube together with the groundwater, The cable can not be taken out through the manhole and can not be removed.

In this case, in order to dismantle the cable, it is necessary to excavate the road and dismantle it to the synthetic resin corrugated pipe, so that the replacement time and cost of the cable are excessively consumed.

In addition, when the synthetic resin wave tube is not watertight and groundwater flows into the synthetic resin wave tube, water is penetrated into the cut surface of the cable to prevent insulation, thereby breaking the cable.

Therefore, in recent years, the synthetic resin wave tube is connected with a connection socket to form a synthetic resin wave tube tube of a predetermined length, and then a water tightness test is performed to confirm the connection state to the synthetic resin wave tube.

In order to carry out the water-tightness test on the synthetic resin corrugated pipe, the packer is first put on both sides of the synthetic resin corrugated pipe and sealed. Then, air having a predetermined pressure is injected into the water tightness test section of the synthetic resin corrugated pipe sealed by the packer, and it is determined whether the air pressure is maintained constant for a predetermined time. At this time, if the air pressure of the watertightness test section is maintained constant for a predetermined time, it is determined that the connection portion between the synthetic resin pipe and the connection socket is properly connected, and it is determined that there is a connection failure portion if the air pressure is not maintained constant.

At this time, in the state where the air pressure for the water tightness test is applied to the synthetic resin corrugated pipe line sealed by the packer, the operator takes out the air from at least one of the packers due to the operation mistake of the operator or the in- There is a phenomenon that the packer is discharged to the outside of the synthetic resin wave tube at a very high speed due to the high air pressure accumulated in the synthetic resin wave tube.

Therefore, there is a problem that a worker located near the synthetic resin wave tube or a packer that discharges various equipment at a high speed may be injured or damaged.

Korean Patent Registration No. 10-0568608 (entitled "Watertightness Test Device for Sewage Piping Using Air Pressure and Its Method)

An object of the present invention is to provide a safety device for a waterproof test of a synthetic resin corrugated pipe which prevents a packer used for sealing a watertight test section of a synthetic resin corrugated pipe from being discharged to the outside of the synthetic corrugated pipe at a high speed by the air pressure inside the synthetic corrugated pipe will be.

Another object of the present invention is to provide a safety device for watertight test of a synthetic resin corrugated pipe which can quickly and easily be detached from a synthetic resin corrugated pipe.

Other objects and advantages of the present invention will become apparent to those skilled in the art from the following detailed description.

A sliding block having a plurality of connecting grooves formed on the housing and having through holes formed concentrically with the through holes of the housing, and a sliding block rotatably connected to the plurality of connecting grooves, When the sliding block is protruded to the outside of the housing, the sliding block is rotated to unfold to the outside of the housing and is supported on the inner peripheral surface of the crest portion of the synthetic resin wave tube. When the sliding block is inserted into the housing, And a support bar which is rotated to be inserted into the test tube.

In addition, the present invention may further include a plurality of guides detachably installed in the housing to penetrate the sliding block and having a fixing part formed outside the sliding block.

Here, the supporting bar may be supported by an elastic member so that the sliding block is automatically rotated to the outside of the housing when the sliding block is moved to the outside of the housing.

For example, the elastic member may be a torsion spring.

As described above, according to an embodiment of the present invention, in the safety apparatus for a water-tightness test of a synthetic resin corrugated tube, even if an operator accidentally extracts air from a packer in a state in which air pressure for water tightness test is applied to a synthetic resin corrugated pipe, So that it is possible to carry out the watertightness test on the synthetic resin wave tube in a safer environment.

In addition, according to the embodiment of the present invention, the safety device for watertight test of a synthetic resin corrugated tube can be installed and removed very quickly and easily, thereby shortening the watertight test time of the synthetic resin corrugated tube, and ultimately, There is an effect that can be saved.

The effects of the present invention will be clearly understood and understood by those skilled in the art, either through the specific details described below, or during the course of practicing the present invention.

1 is a perspective view of a safety device for watertight test of a synthetic resin corrugated pipe according to an embodiment of the present invention;
2 is a front view of a safety device for watertight test of a synthetic resin corrugated pipe according to an embodiment of the present invention.
3 is a perspective view showing the state of the safety device when the safety device is removed from the synthetic resin wave tube,
4 is a view for explaining a process of installing a safety device in a synthetic resin corrugated pipe;
5 is a view showing an example in which a safety device is installed in a synthetic resin corrugated pipe
6 is a view for explaining the process of removing the stabilizer from the synthetic resin corrugated pipe;

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the following description. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a perspective view of a safety device for watertight test of a synthetic resin corrugated pipe according to an embodiment of the present invention, FIG. 2 is a front view of a safety device for watertight test of a synthetic resin corrugated pipe according to an embodiment of the present invention, FIG. 4 is a view for explaining a process of installing a safety device in a synthetic resin wave tube, FIG. 5 is a view showing an example in which a safety device is installed in a synthetic resin wave tube, FIG. And FIG. 6 is a view for explaining the process of removing the stabilizer from the synthetic resin corrugated pipe.

1 to 6, a safety apparatus 100 for a synthetic resin wave tube tightness test according to an embodiment of the present invention includes a plurality of synthetic resin corrugated pipes 211 and 212 connected to each other by a connection socket 213 The synthetic resin wafers 211 and 212 are inserted into the synthetic resin wafers 211 and 212 so as to be positioned outside the pair of packers 220 inserted into the synthetic resin wafers 211 and 212 so as to seal the test section in the waterproof test of the synthetic resin wafers 210. [ To prevent the packer 220 from being discharged to the outside of the synthetic resin corrugated pipe 210 at a high speed by the air pressure inside the synthetic resin corrugated pipe 210 sealed by the packer 220 Device.

For example, when an operator presses the packer 220 due to an operation error of the operator or insufficient knowledge of the test procedure in a state where air pressure is applied to the synthetic waved pipe line 210 sealed by the packer 220, If the air is drawn out from at least one of the packers 220, the phenomenon that the packer 220 is discharged to the outside of the synthetic resin corrugated pipe 210 at a very high speed due to the high air pressure in the synthetic resin corrugated pipe 210 . Therefore, a worker located near the synthetic resin wave tube path 210 or a packer 220 discharging various kinds of equipment at a high speed may be damaged or damaged.

Accordingly, the safety device 100 for watertightness test of a synthetic resin wave tube tube according to an embodiment of the present invention is disposed on the outer side of the packer 220 and is subjected to water tightness test Even if the operator accidentally extracts the air in the packer 220 in the state where the air pressure for supplying the air to the outside of the synthetic resin corrugated pipe 210 is high, do.

The safety device 100 for a synthetic resin wave tube tightness test according to an embodiment of the present invention may include a housing 110, a sliding block 120, and a support bar 130.

The housing 110 may have a cylindrical shape with one side opened. A through hole 111 may be formed in the other side surface of the housing 110 at a central portion thereof.

The sliding block 120 may be slidably coupled to the housing 110. The sliding block 120 may be provided with a through hole 121 concentric with the through hole 111 of the housing 110. Meanwhile, the sliding block 120 may have a plurality of connection grooves 122 formed at predetermined intervals.

The support bar 130 may be rotatably connected to a plurality of connection grooves 122 provided in the sliding block 120.

The supporting bar 130 may be supported by an elastic member 140 so that the sliding block 120 can be automatically rotated to the outside of the housing 110 when the sliding block 120 is protruded to the outside of the housing 110 have.

For example, when the sliding block 120 is protruded to the outside of the housing 110, the elastic member 140, which rotates the supporting bar 130 to the outside of the housing 110 to be unfolded, Can be used.

1, when the sliding block 120 is slid to the outside of the housing 110 to be protruded, the supporting bar 130 is rotated to the outside of the housing 110 to be unfolded. As a result, (210) may be supported on the inner circumferential surface of the crest portion. 3, when the sliding block 120 is inserted into the housing 110, the support bar 130 is pressed and rotated by the housing 110, .

4, the sliding block 120 is protruded to the outside of the housing 110, and the supporting bar 130 is extended to the outside of the housing 110, 210, respectively.

When the safety device 100 is inserted into the synthetic resin wave tube 210 in the above state and the support bar 130 of the safety device 110 is pressed by the valley of the synthetic resin wave tube 210, The support bar 130 is rotated toward the center of the housing 110 as shown in FIG. 4, and when the support bar 130 is positioned at the crest portion through the valley of the synthetic resin wave guide tube 210, 140 by the elastic force of the elastic force of the elastic force of the elastic force of the elastic force of the spring 140.

Meanwhile, the safety device 100 for a synthetic resin wave tube tightness test according to an embodiment of the present invention may further include a plurality of guides 150. The guide 150 may be detachably installed in the housing 110 to penetrate the sliding block 120. An annular annular fixing portion 151 may be formed on the guide 150 to be positioned outside the sliding block 120.

When the safety device 110 according to an embodiment of the present invention is taken out to the outside of the synthetic resin wave tube 210 after the waterproofing test of the synthetic resin wave tube path 210 is completed, When the sliding block 120 is pushed to the inside of the housing 110 along the guide 150 in a state where the safety device 100 is pulled by pulling the fixed portion 151 of the guide 150 .

3 and 5, when the worker pushes the sliding block 120 toward the housing 110 in a state in which the fixed portion 151 of the guide 150 is held and pulled after the operator grips the fixed portion 151, The supporting bar 130 extended outward of the housing 110 is pressed by the housing 110 by the elastic force of the elastic member 140 (see FIG. 2) to be rotated toward the connecting groove 122, 110, the safety device 100 is released from the crests of the synthetic resin corrugated pipe 210. 5, if the safety device 100 is simply removed from the synthetic resin wave tube 210 while holding the fixing part 151, the safety device 100 It is very quickly and easily removed from the synthetic resin wave tube 210.

1 to 6, the process and effect of installing and removing the safety apparatus 100 for watertightness test of a synthetic resin corrugated pipe according to an embodiment of the present invention will be described.

1 to 4, in the safety device 100 for a waterproof test of a synthetic resin wave tube according to an embodiment of the present invention, the sliding block 120 is protruded from the housing 110 to the outside of the housing 110 The support bar 130 may be inserted into the synthetic resin corrugated pipe 210 in an unfolded state.

When the safety device 100 is inserted into the synthetic resin wave tube 210 in the above state and the support bar 130 of the safety device 100 is pressed by the valley of the synthetic resin wave tube 210, When the supporting bar 130 is positioned at the crest portion of the synthetic resin wave guide tube 210 through the valley portion thereof, the elastic force of the elastic member 140 causes the elastic force And is inserted into the synthetic resin waved pipe line 210 while repeating the process of restoring to the outside of the housing 110.

When the safety device 100 is inserted into the synthetic resin wave tube path 210 to a desired position and the support bar 130 is positioned at the crests of the synthetic resin wave tube 210, 140 and is supported by the crests of the synthetic resin corrugated pipe 210. The support bar 130 is supported by the bottom surface of the connection groove 122 so that the support bar 130 is not rotated to the outside of the housing 110 even if the safety device 100 is pulled out of the synthetic resin wave guide tube 210 Thereby preventing the safety device 100 from being released to the outside of the synthetic resin corrugated pipe 210.

6, after the safety device 100 is installed to be located outside the packer 220, a predetermined pressure of air is injected into the packer 220 to seal the synthetic resin wave tube 210, A predetermined pressure of air is injected into the synthetic-resin-corrugated pipe line 210 which is sealed by the valve 220 to determine whether the constant air pressure is maintained for a predetermined time, and the connection state of the synthetic resin corrugated pipe line 210 is checked.

At this time, the safety device 100 is inserted into the synthetic resin wave tube 210 so as to be located outside the packer 220 and supported by the plasticizer tube 220, Even if the operator takes out air from at least one of the packers 220 due to the operator's operation error or the inappropriateness of the test procedure in the state where the air pressure for conducting the water tightness test is applied to the packer 220, It is possible to prevent a phenomenon that the packer 220 is discharged to the outside of the synthetic resin wave tube 210 at a very high speed due to the high air pressure in the synthetic resin wave tube path 210.

Therefore, it is possible to prevent a safety accident such as being injured or damaged by a worker located near the synthetic resin wave tube path 210 or a packer 220 discharging various kinds of equipment at a high speed.

After confirming the connection state of the synthetic resin wave tube 210, the air injected into the packer 220 is removed, and then the safety device 100 is removed from the synthetic resin wave tube 210 as shown in FIG. 5 do.

5, the sliding block 120 is slid into the housing 110 and the supporting bar 130 is pressed by the housing 110 to rotate toward the connecting groove 122 (see FIG. 3) The safety device 100 can be quickly and simply moved to the synthetic resin waveform tube while the operator is holding the fixing part 151 in a state in which the safety device 100 is released from the peak of the synthetic resin wave tube path 210 (Not shown).

More specifically, the operator pushes the sliding block 120 toward the housing 110 in a state where the safety device 100 is fixed by gripping the fixed portion 151 of the guide 150 after the operator grips the fixed portion 151 The supporting bar 130 extended toward the outer side of the housing 110 is pressed by the housing 110 by the elastic force of the elastic member 140 and is rotated toward the connecting groove 122 to the inside of the housing 110 The safety device 100 is released from the crests of the synthetic-resin-corrugated pipe 210. In this state, if the safety device 100 is pulled out of the synthetic resin wave tube 210 very quickly and simply while holding the fixing part 151, the safety device 100 can be moved to the synthetic resin wave tube 210). ≪ / RTI >

As described above, the safety device 100 for a synthetic resin wave tube tightness test according to an embodiment of the present invention is installed in the synthetic resin wave tube path 210 so as to be positioned outside the packer 220 for sealing the synthetic resin wave tube path 210 Even if the operator mistakenly extracts the air in the packer 220 in the state where air pressure for the water tightness test is applied to the synthetic resin wave tube 210 by supporting the packer 220, It is possible to perform the watertightness test of the synthetic resin wave tube 210 in a more safe environment.

In addition, in the safety device 100 for a water-tightness test of a synthetic resin wave tube tube according to an embodiment of the present invention, the sliding block 120 is protruded to the outside of the housing 110, and the support bar 130 is unfolded outside the housing 110 When the sliding block 120 is inserted into the housing 110 to be slid only when the sliding block 120 is removed, the housing block 110 can be inserted into the supporting bar (not shown) 130 are pressed and inserted into the connection groove 122 to be released from the crests of the synthetic resin corrugated pipe 210 so that the operator can secure the safety device 100 from the synthetic resin corrugated pipe 210 while holding the fixed portion 151 Just remove it.

As described above, according to the embodiment of the present invention, the safety apparatus 100 for watertightness test for synthetic resin corrugated pipe can be installed and removed very quickly and easily, thereby shortening the water tightness test time of the synthetic resin corrugated pipe. ) Can be saved.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

(110): housing (120): sliding block
(130): supporting bar (140): elastic member
(150): Guide

Claims (4)

A housing having a through hole formed therein;
A sliding block which is slidably coupled to the housing and has a plurality of connection grooves and through holes formed concentrically with the through holes of the housing; And
The sliding block is rotatably connected to the plurality of connection grooves. When the sliding block is moved to the outside of the housing, the sliding block is automatically rotated to the outside of the housing and supported by the elastic member. When the sliding block protrudes to the outside of the housing, And a support bar supported by the inner circumferential surface of the crest portion of the synthetic resin wave tube and rotated to be inserted into the connection groove by the housing when the sliding block is inserted into the housing,
When the support bar is inserted into the synthetic resin wave tube and the support bar is pressed by the valley of the synthetic resin wave tube, the support bar rotates to the connection groove side. When the support bar is positioned on the protruding part beyond the valley of the synthetic resin wave tube, It is possible to quickly and easily insert and dispose the synthetic resin into the inside of the synthetic resin wave tube while repeating the process of restoring to the outside of the housing,
The sliding block is pushed into the housing side so that the supporting bar extended to the outside of the housing is pushed by the housing to be inserted into the housing by being rotated to the connection groove side to release the fixing from the crest of the synthetic resin wave tube, A safety device for watertight test of synthetic resin corrugated pipe which can be removed. The method according to claim 1,
Further comprising: a plurality of guides detachably installed in the housing to penetrate the sliding block and having a fixing part formed outside the sliding block. delete The method according to claim 1,
Wherein the elastic member is a torsion spring.
KR1020150044785A 2015-03-31 2015-03-31 Safety apparatus for water tightening test of plastic corrugated pipe KR101713052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150044785A KR101713052B1 (en) 2015-03-31 2015-03-31 Safety apparatus for water tightening test of plastic corrugated pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150044785A KR101713052B1 (en) 2015-03-31 2015-03-31 Safety apparatus for water tightening test of plastic corrugated pipe

Publications (2)

Publication Number Publication Date
KR20160117740A KR20160117740A (en) 2016-10-11
KR101713052B1 true KR101713052B1 (en) 2017-03-08

Family

ID=57161923

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150044785A KR101713052B1 (en) 2015-03-31 2015-03-31 Safety apparatus for water tightening test of plastic corrugated pipe

Country Status (1)

Country Link
KR (1) KR101713052B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106985093B (en) * 2017-04-19 2018-08-31 常州市盛士达汽车空调有限公司 The clamping device of air tightness of workpiece inspection
CN110967288A (en) * 2019-11-27 2020-04-07 中国铁路设计集团有限公司 Pressurized-water test pipeline fixing device and pressurized-water testing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100586856B1 (en) * 2005-11-23 2006-06-08 조성욱 The water pressure cap for pressure testing a pipe of building
KR200461105Y1 (en) * 2011-12-20 2012-06-25 육종현 A stopple apparatus for gas check
KR101226011B1 (en) * 2010-10-20 2013-01-24 삼성중공업 주식회사 Apparatus inspecting and sealing pipeline

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100568608B1 (en) 2005-06-28 2006-04-07 모악개발 주식회사 Leakage test apparatus for sewage pipe using air pressure and methods using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100586856B1 (en) * 2005-11-23 2006-06-08 조성욱 The water pressure cap for pressure testing a pipe of building
KR101226011B1 (en) * 2010-10-20 2013-01-24 삼성중공업 주식회사 Apparatus inspecting and sealing pipeline
KR200461105Y1 (en) * 2011-12-20 2012-06-25 육종현 A stopple apparatus for gas check

Also Published As

Publication number Publication date
KR20160117740A (en) 2016-10-11

Similar Documents

Publication Publication Date Title
US5740830A (en) Testing of plumbing installations
US8746344B2 (en) System and method for containing borehole fluid
US4637756A (en) Apparatus for removing and replacing pipe beneath an earthfill
AU2008213928B2 (en) Down hole electrical connector for combating rapid decompression
KR101713052B1 (en) Safety apparatus for water tightening test of plastic corrugated pipe
EP3292266B1 (en) Blowout-preventer-stack one-trip test tool and method
KR101740323B1 (en) Simplicity water tightening test apparatus of plastic corrugated pipe and simplicity water tightening test method using the same
GB2523174A (en) Control cable removal
KR101740324B1 (en) Packer for water tightening test of plastic corrugated pipe
US9845655B2 (en) System and method for testing an insert packer assembly
CA2848184A1 (en) Cutting assembly and method of cutting coiled tubing
KR20180058127A (en) connector for damaged pipe and the pipe connecting structure thereof
KR100904384B1 (en) Connection apparatus for power-transmission line of transformer substation
KR100666481B1 (en) Waterproof apparatus for cable
KR20110008464A (en) Joint box adapter for corrugated pipe
KR101715885B1 (en) Water tightening test apparatus of plastic corrugated pipe and water tightening test method using the same
KR102521050B1 (en) Waterproofing apparatus for cable pathway
KR101449762B1 (en) Apparatus for supporting of drilling
KR101740501B1 (en) Watertight test method of plastic corrugated pipe
KR101441508B1 (en) A packing insert type socket pipe
CA2333370A1 (en) Cable fluid injection sleeve
ES2690416T3 (en) Method and apparatus for removing a cable core from a cable cover
AU715649C (en) Testing of plumbing installations and plumbing tool
WO2001025590A3 (en) Cable protection in blow-out preventers
IES20030313A2 (en) An improved cable joint closure system

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right