KR101911543B1 - Pipe connecting structure - Google Patents

Pipe connecting structure Download PDF

Info

Publication number
KR101911543B1
KR101911543B1 KR1020150179365A KR20150179365A KR101911543B1 KR 101911543 B1 KR101911543 B1 KR 101911543B1 KR 1020150179365 A KR1020150179365 A KR 1020150179365A KR 20150179365 A KR20150179365 A KR 20150179365A KR 101911543 B1 KR101911543 B1 KR 101911543B1
Authority
KR
South Korea
Prior art keywords
ring
thread
female thread
piping
male
Prior art date
Application number
KR1020150179365A
Other languages
Korean (ko)
Other versions
KR20170071252A (en
Inventor
홍석기
Original Assignee
(주)태양테크
홍석기
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 (주)태양테크, 홍석기 filed Critical (주)태양테크
Priority to KR1020150179365A priority Critical patent/KR101911543B1/en
Publication of KR20170071252A publication Critical patent/KR20170071252A/en
Application granted granted Critical
Publication of KR101911543B1 publication Critical patent/KR101911543B1/en

Links

Images

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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
    • 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valve Housings (AREA)

Abstract

The present invention relates to a piping connection structure that is easy to connect piping when a piping is connected to a valve or an adapter during cold / hot water piping, and has a high airtightness in a connected state.
For this purpose, in the present invention, an epoxy coating layer is formed to a certain thickness on a male thread, a step is formed on the inner side of a female thread, and an o-ring is placed on the step so that airtightness by the epoxy coating layer and o- By tightening with pressure, it is possible to maintain perfect airtightness by simple fastening operation due to keeping airtightness by O-ring.

Description

Pipe connecting structure which is fixedly connected to the inlet side of the valve so that the hot /

The present invention relates to a connection part of a piping which is easy to connect a piping to an inlet side of a flow path of a flow path of a valve, a branch, or the like during cold / hot water piping,

In order to provide easy connection of piping when piping is connected to the inlet side or the outlet side of the flow path of the valve used for interrupting the fluid flowing in the piping or the sub-tappet for branching, etc., Each of which is equipped with piping heat fittings for piping connection.

In other words, when piping is connected to an outlet for a valve, a branch, etc., a female thread is formed on the inlet side of the subheader for such a valve or branch, and a male screw thread is formed on the outlet side. The flow is prevented from leaking during flow, and the piping connection part also provides ease of assembly for connection of the piping.

In particular, when water is supplied to each of the homes in the granular piping of the multi-story building, water is supplied so as to be interrupted by the valve.

Therefore, the connection part for connection of the pipe connected to the inlet side of the valve requires a considerable airtightness in the part where the male thread of the connection part is connected with the female thread formed at the inlet side of the valve.

In other words, if leakage occurs in the connection part connected to the inlet side of such a valve, water supply to the whole multi-story building will be disturbed, and if water leakage occurs and repair is desired, the water of the pipe connected to the granular pipe This means that it is costly and time-consuming to do all this work, which is a significant inconvenience to all residents of multi-story buildings.

Therefore, Teflon tapes are first taped to the male threads of the connection parts connected to the female threads on the inlet side of the valve at a predetermined number of times, then wrapped in a plurality of times with a second thread tape, and then the piping compound is applied in a third order. It is used in connection with the method.

However, there is a problem that such an operation method can not be performed by a skilled person. In particular, when winding the Teflon in the same direction as the pipe connection and reversely winding it, the thread is loosened during screw tightening, Also, even in the initial stage for winding, when there is no holding cycle for firm fixing of the Teflon, or when the holding cycle is wrong, there is a difficulty in fastening as well as loosening and loosening at the time of tightening, and even if it is tightened, A problem will arise.

In addition, even if the winding direction is reversed, if the method of winding the Teflon is wrong, loosening may occur and if it is combined with a female thread such as an adapter for a valve or a branch having a complementary relationship with a pipe pipe, In this case, it is difficult to tighten the female thread formed on the adapter or the like for the valve or the branch.

This is because when the pipe connection is made, the outer diameter of the male threads and the inner diameter of the female threads are engaged with each other in a state in which they are closely meshed with each other, so that there is a difficulty in tightening the connection even if the rubber is wound more than necessary.

Therefore, most workers will be able to tighten the thread by threading the Teflon thread several times.

However, in the case where Teflon is less wound on the male screw thread for easy assembly, there is a difficulty in maintaining tightness while the tightening operation is easy.

In addition, since the piping compound must be applied in the state of winding the Teflon, there is a difficulty in following the operation.

Therefore, it is difficult for the pipe worker to wrap the Teflon in the untrained person because of such a problem. Therefore, there is a difficulty in maintaining the airtightness of the piping as well as the difficulty of the piping work.

Therefore, in the present invention, it is possible to improve the workability of the piping as well as to improve the air-tightness maintenance without the need of winding the Teflon in the piping work.

To this end, in the present invention, epoxy is applied to a male thread with a predetermined thickness to form a coating layer, and the epoxy coating layer is cured by engaging with a female thread to enable airtightness to be maintained.

In addition, when it is difficult to maintain the airtightness only by the epoxy application layer, the O-ring is placed in the portion where the female thread and the male thread are in close contact with each other, thereby securing a secondary airtightness.

In addition, a protrusion having a chamfered surface is formed at the tip of the male screw thread so as to be protruded, and then the chamfered surface is brought into close contact with the inner surface of the female thread so as to be able to maintain the tertiary hermeticity.

In addition, in the case where the O-ring is to be placed, in order to improve the fixing force of the O-ring when the step is not formed at the tip of the female thread, an inner groove is formed in the portion where the flange surface of the male thread is formed, The upper surface of the female thread is pressurized and the upper surface of the female thread is tightly adhered to the threaded portion where the thread is formed.

In addition, by providing the flange surface of the male screw thread with a separate flange, the pressing force of the O-ring as well as the workability and airtightness of the inner groove are improved.

Therefore, the number of connectors connected to the inlet layer of the sub-taps for valves, branches, etc. It has excellent hardenability with a certain thickness in the thread and excellent airtightness, and the epoxy coating layer provides close coupling and arbitrary separation Is not generated.

In addition, since there is no possibility of discretionary separation, the airtightness is improved in a coupled state. A step is formed on the inner side of the female thread, and the O-ring is assembled by the O-ring closely attached to the flange surface of the male threads. When the male thread is tightened with female threads, it is possible to maintain the second tightness with the O-ring.

Further, the tip of the male thread of the connector is extended to form the protrusion, and then the chamfered surface is formed on the inner surface thereof, so that the chamfered surface is press-contacted with the step formed on the inner side of the female thread, .

Therefore, it is possible to keep the airtightness in triple, so it is suitable for use where airtightness is required.

In addition, the operator has to merely connect the piping to the connection port, and then connect the connection pipe only by fastening.

In addition, in order to maintain the tightness of the female threads of valves such as valves, branches, etc., and to maintain airtightness by means of the O-ring, a flange surface is formed at the rear end of the male threads of the connection port Only a certain portion of the O-ring is inserted into the inner groove so that the O-ring is prevented from being deformed by the pressurization, so that the airtightness is improved.

FIG. 1 is an embodiment in which an epoxy coating layer is formed on a male thread of a connector of the present invention and the female thread is joined to a female thread for an valve, a branch, or the like.
FIG. 2 is an embodiment in which a step for placing an O-ring is formed at the tip of a female thread of an octopus or the like for a valve, a branch or the like of the present invention.
Fig. 3 is a perspective view of an embodiment in which the male threads of the connector of the present invention are joined to the female threads corresponding to the inlet side of the sub-
FIG. 4 shows an embodiment in which piping is connected to the inlet side and the outlet side of the sub-tank for the valve, branch, etc. of the present invention.
Fig. 5 is a cross-sectional view of an embodiment in which the chamfered surface of the protrusion formed at the tip of the male thread of the present invention is in close contact with the step formed on the inner side of the female thread,
FIG. 6 is a view showing a state in which an O-ring is mounted on an inner groove of a flange surface of a male thread of a connector of the present invention. FIG.
7 is a perspective view of an embodiment of a state in which the airtightness is maintained in a tertiary state by being brought into close contact with the tip of the female thread in a state where the O-ring is placed on the inner groove formed on the flange surface of the male thread of the connector of the present invention
FIG. 8 shows an embodiment in which the male thread of the connector of the present invention is coupled to the female thread of an abutment for valves, branches, etc., and the air tightness is maintained by the first, second and third axes.
9 is a cross-sectional view

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment in which an epoxy coated layer is formed on a male thread of a connecting part of the present invention and is coupled to a female thread of an overhead for valves, branches, etc., The epoxy resin 11 and the female thread 21 are combined with the female thread 21 of the valve 20 and the sub-taps (T-shaped and L-shaped) for branching in the state where the epoxy is applied. ), It hardens while being kept air-tight, and is also prevented from being loosened during piping work.

The epoxy used in the present invention is to be used in a two-pack form in the case of primary application to the male threads 11 of the connector 10 so as to be mixed with each other. The degree of mixing is preferably 50:50 in the present invention As a result, it was confirmed that the proper time and natural hardening time for the tightening work were most appropriate, and the sealing was most excellent when combined.

In addition, the coating operation varies depending on the diameter of the male thread 11 of the connector 10, and when the male thread 11 has a large diameter, the most excellent air tightness can be confirmed when the male thread 11 is painted with the brush there was.

In addition, in the cured state using the epoxy, the male thread 11 and the female thread 21 of the connector 10 are not separated arbitrarily, so that the airtightness is excellent. The epoxy is pulverized so that the epoxy resin can be easily separated.

2 shows a state in which the female thread 21 of the valve or the branch or the like and the male threads 11 of the connector 10 are joined together by the epoxy coating layer 40 in a non- A flange 12 is provided at the rear end of the male thread 11 of the connector 10 and an O-ring 30 functioning as a hermetic seal is disposed inside the flange 12 It is.

Therefore, the O-ring 30 can be brought into close contact with the distal end surface 22 of the female thread 21, so that the airtightness can be compensated.

3 shows a state in which the female thread 21 of the valve 20 or the abutter for branches or the like and the male threads 11 of the connector 10 are joined by the epoxy application layer 40 The use of the O-ring 30 for additional airtightness is intended to solve the problem of air-tightness due to the spreading of the O-ring 30 when the O-ring 30 is pressed. The first end portion 23 of the first end portion 23 is machined so that the O-ring 30 is seated on the first end portion 23 of the O-ring 30 So that the flange 12 of the male thread 11 of the connector 10 is brought into close contact with the flange 12 of the male thread 11. [

Therefore, it is possible to maintain confidentiality even by strong tightening.
The rear surface of the flange surface is provided with a pipe connection port 50. The pipe connection port is provided with a tightening frame 51 at the front end thereof and a packing 52 at the inner side thereof to fit the pipe connection to the inside of the tightening frame. It is possible to simply connect the piping by pressing the clamping frame.

FIG. 4 shows another embodiment for preventing the airtightness due to the expansion of the O-ring shown in FIG. 3 when the O-ring is pressurized. As shown in FIG. 3, the female thread 21 of the valve 20, It is difficult to process the first step 23 in consideration of the fact that the width of the distal end face 22 is only 2 to 3 mm when the step 23 is machined on the distal end face 22 of the first step 23 A part of the O-ring 30 inserted into the inner groove 13 is machined so that the inner groove 13 is machined to the inside of the flange surface 12 of the male thread 11 of the coupling 10, The o-ring 30 is pressed to the inclined surface 22a where the female thread 21 starts, as well as the tip end surface 22 of the female thread 21, thereby improving the airtightness of the pipe connection And also provides ease of processing.

5 shows another means for securing the airtightness when the male thread 11 of the connector 10 is joined to the female thread 21 of the valve 20 or the like by epoxy application. The projecting portion 14 of the male thread 11 of the connector 10 is formed so as to extend to the tip of the male thread 11 and the projecting portion 14 having the chamfered surface 15 inside the tip of the projecting portion is inserted into the female thread 11 Tightly contact with the side surface 24a and the bottom surface 24b of the second step 24, which is machined on the inner side of the bottom surface 21a.

At this time, the leading end of the projecting portion 14 is pressed by the pressure, and the airtightness is maintained.

6 and 7 show an inner groove 13 formed on the flange surface 12 of the male screw thread 11 of the connector 10 and only a part of the O- (22) of the female thread (21) to maintain the airtightness.

This is because a part of the O-ring 30 is inserted into the inner groove 13 machined to be inserted into the inside of the flange surface 12 of the male thread 11 so that the O- Tight engagement with the narrow distal end face 22 of the female thread 21, and the inclined portion where the female thread 21 starts is filled with the O-ring 30, so that the air tightness is excellent.

8 shows a state in which the male thread 11 of the connector 10 is coupled to the female threads 21 of the valve 20 or the branch or the like to maintain the tightness in the connected state as the first, And the flange surface is formed at the rear end of the male thread and the inner groove is formed at the flange surface, so that only a part of the O-ring is inserted.

In addition, in the state of being coupled to the female thread 21 of the valve 20 for engagement with the male thread and the female thread 21 of the branch or the like by the epoxy coating layer, And a second step is provided on the inner side of the second step so that it can be further tightly held while being in close contact with the side surface 24a and the bottom surface 24b of the second step and an inner groove is formed on the flange surface of the male thread, In the state where only a part of the inner thread is inserted into the inner groove, the outer end face of the female thread is not separately machined, and even when the O-ring is pressed, the widening does not occur and the tight sealing can be maintained while filling up the inclined face where the female thread is started.

10: connector 11: male threads
12: Furenji Cotton 13: Inland hometown
14: protruding part 15:
20: valve 21: female thread
22:
30: O ring
40: Piping connector

Claims (6)

The airtightness is maintained primarily by the epoxy coating layer which is applied to the piping or to the threaded portion 10 of the valve or adapter with a certain thickness and the female thread which is engaged with the male threaded portion formed with the epoxy coated layer, Wherein the O-ring is disposed on the inner side of the flange surface formed on the flange surface, and the O-ring is in close contact with the front surface of the female thread while the male thread and the female thread are engaged with each other,
An inner groove is formed on the inner side of the flange surface, and an O-ring is inserted into the inner groove,
The back surface of the flange surface is provided with a piping connection port 50. The piping connection port is provided with a tightening frame 51 at its front end and a packing 52 at its inner side so that the pipe connection is inserted into the inside of the tightening frame The piping connection can be made easily by pressing the tightening frame after it is done,
The epoxy coating layer is applied in a non-cured state, and when the application is first applied to the male threads 11 of the connection port 10 in a two-part form, the epoxy coating layers are used to be mixed with each other, : 50, so that the proper time and natural curing time for tightening with female threads are most appropriate,
The first end of the female thread is supported on the tip end of the female thread in a stepped manner at a height smaller than the diameter of the O-ring so that the O-ring located inside the flange surface of the male thread is supported by the first step So that the pressurization of the pressure-
And a second step formed with the side surface and the bottom surface is formed in the female thread to further enhance the airtightness of the male thread. And a piping connection part that is fixedly connected to the inlet side of the valve, delete delete delete delete delete
KR1020150179365A 2015-12-15 2015-12-15 Pipe connecting structure KR101911543B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150179365A KR101911543B1 (en) 2015-12-15 2015-12-15 Pipe connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150179365A KR101911543B1 (en) 2015-12-15 2015-12-15 Pipe connecting structure

Publications (2)

Publication Number Publication Date
KR20170071252A KR20170071252A (en) 2017-06-23
KR101911543B1 true KR101911543B1 (en) 2018-12-28

Family

ID=59283306

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150179365A KR101911543B1 (en) 2015-12-15 2015-12-15 Pipe connecting structure

Country Status (1)

Country Link
KR (1) KR101911543B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102555237B1 (en) * 2023-02-16 2023-07-12 한전케이피에스 주식회사 battery voltage measuring device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120049462A1 (en) * 2009-02-14 2012-03-01 Malcolm Pitman Connector seal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423805B4 (en) * 1994-07-06 2004-12-02 Voss Automotive Gmbh Connecting device for pressure lines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120049462A1 (en) * 2009-02-14 2012-03-01 Malcolm Pitman Connector seal

Also Published As

Publication number Publication date
KR20170071252A (en) 2017-06-23

Similar Documents

Publication Publication Date Title
US20100259040A1 (en) Coupling and method for joining
RU2470211C1 (en) Pipeline connection design
US20130307264A1 (en) Water systems
US8678444B2 (en) Fluid coupling having a moving seal
KR101911543B1 (en) Pipe connecting structure
JP2013032802A (en) Method and jig for repairing flange joint
US20110121566A1 (en) Glueless plumbing union
CN108386629A (en) The method of pipe jointer secondary seal
KR20160034542A (en) Centering vacuum pipe
US6170891B1 (en) Closure for secondary containment pipe
CN202327077U (en) Temporary plugging device of pressure container or pipeline
JP2016211668A (en) Seal device
KR101711137B1 (en) Method for mending of water leakage interception inwater main and method thereof
JP7231976B2 (en) Closure repair method and repair device
KR20140025857A (en) Joint apparatus for valve or pipe
JP2011007308A (en) Piping repairing method
KR101575187B1 (en) Joint Adaptor for jointing a branch pipe to main duct and Method therefor
KR101513849B1 (en) The piping connection sealing structure
KR20210014794A (en) Fluid distributor
US11946567B1 (en) Gate valve assembly
CN103335185B (en) A kind of on-line pressure sealant injecting glue conduit
KR20130010939A (en) Apparatus connecting booster pump for water supply
KR20130001740U (en) One touch type Pipe connecting tool
US20170113426A1 (en) System and method for repairing leaks in in-service utility pipelines
JP3234252U (en) Piping equipment, piping connection structure

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)