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WO2018012698A1 - Dispositif de raccordement de tuyau à suppression de pression résiduelle, et appareil ménager de climatisation - Google Patents

Dispositif de raccordement de tuyau à suppression de pression résiduelle, et appareil ménager de climatisation Download PDF

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Publication number
WO2018012698A1
WO2018012698A1 PCT/KR2017/000924 KR2017000924W WO2018012698A1 WO 2018012698 A1 WO2018012698 A1 WO 2018012698A1 KR 2017000924 W KR2017000924 W KR 2017000924W WO 2018012698 A1 WO2018012698 A1 WO 2018012698A1
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WO
WIPO (PCT)
Prior art keywords
valve
valve chamber
shaft
chamber
hole
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/000924
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English (en)
Korean (ko)
Inventor
이종천
고동필
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KEEHA PRECISION CO Ltd
Original Assignee
KEEHA PRECISION CO Ltd
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 KEEHA PRECISION CO Ltd filed Critical KEEHA PRECISION CO Ltd
Publication of WO2018012698A1 publication Critical patent/WO2018012698A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • 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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • 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
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units

Definitions

  • the present invention relates to piping connection devices and air conditioning equipment. Specifically, the present invention relates to a residual pressure removing type pipe connecting device capable of safely and easily separating a connecting pipe, and an air conditioning device having a connecting pipe using the same.
  • valve In general, the valve is used to block the flow of the fluid, such as gas or liquid, or to flow the fluid.
  • Piping applications include air conditioning, heating and cooling, water supply and drainage, ventilation / ventilation, and city gas.
  • This quick connector is used when the separation of the pipe is required, at this time, it is necessary to minimize the leakage of fluid flowing through the pipe. In addition, it should be possible to simply detach and combine while minimizing the leakage of fluid during separation.
  • connection pipe between the air conditioner main unit and the air conditioner outdoor unit is disconnected, almost all of the circulating refrigerant in the pipe may leak and there is a difficulty in reconnecting it. That is, disconnection or connection is not easy. In addition, there is a risk that the pipe which is separated by the pressure of the fluid remaining in the pipe is momentarily bounced off when the connection pipe is separated.
  • the flow path of the fluid may need to be disconnected and separated. At this time, there is a need for a safe and simple separation of the pipe flowing fluid and if necessary to reconnect.
  • the high flow pressure of the fluid is formed in the pipe through which the fluid flowed. Even though both sides of the pipe to be separated are separated and the fluid is separated without substantial leakage, one side of the pipe is separated by the residual pressure remaining when the pipe is separated. There is a risk of going out.
  • the present invention is to propose a residual pressure relief pipe connecting device that can be safely and easily separated by preventing the one side separated by the residual pressure when the pipe is separated.
  • the first body is formed with a first valve chamber therein;
  • a first valve body installed and supported in the first valve chamber;
  • a first valve hole through which the first valve body penetrates and is elastically supported in the first valve chamber, and is slidably moved, wherein a circumference of the first valve hole is detached from the first valve body according to the sliding movement, and the first valve hole is opened and closed
  • a first valve seat A second valve chamber having a second valve seat portion protruding from the inner circumferential surface thereof is formed therein, and a front portion is detachably inserted into the first valve chamber and engaged at the rear of the first body, and when coupled, the first valve seat is moved forward.
  • a second body which opens to open the first valve hole includes a second shaft valve and is installed in the second valve chamber, when the second shaft valve is pushed backward by the end of the first valve body when engaged with the first body of the second body is separated from the second valve seat portion
  • a second valve body which opens the flow path of the two valve chambers and moves the second shaft valve forward by an elastic force when the second body is separated, and is seated on the second valve seat to block the flow path;
  • a connecting fixture whose one end is fitted around one of the first and second bodies and the other end is nut-fastened to the outer peripheral surface of the other of the first and second bodies when the second body is coupled into the first valve chamber.
  • Residual pressure removing type characterized in that it comprises a, at least one residual pressure removing hole in communication with the second valve chamber around the front of the second body and at least one residual pressure removing groove formed on the inner peripheral surface of the other end of the connecting fixture
  • a piping connecting device is proposed.
  • the fluid in the second valve chamber as the residual pressure relief hole, the circumference of the front portion of the second body and the first valve in accordance with the partial retraction of the second body from the first valve chamber when the nut connection portion of the connecting fixture is released It is discharged along the gap between the inner circumferential surface of the seal and the residual pressure removing groove, and the residual pressure of the second valve chamber is removed.
  • the first valve seat is returned by elastic force when the second body is separated, and upon return, the periphery of the first valve hole is in close contact with the first valve body and the first valve hole is closed, and the second shaft The valve returns to the front by the elastic force when the second body is separated, and when the valve is returned, the valve is in close contact with the second valve seat and closes the flow path of the second valve chamber.
  • the first valve chamber has a first ring groove formed on the inner peripheral surface of the coupling side with the second body, the first sealing ring for sealing between the inner peripheral surface of the first valve chamber and the outer peripheral surface of the second body It is provided in the first ring groove, the residual pressure removing hole is disposed in front of the portion that is in close contact by the first sealing ring when the second body is the maximum coupling, and the second from the first valve chamber according to the partial loosening of the nut fastening portion of the connecting fixture According to the partial retreat of the body, it is disposed behind the portion that is in close contact with the first sealing ring and discharges the fluid in the second valve chamber to a gap between the inner circumferential surface of the first valve chamber and the outer circumferential surface of the front portion of the second body.
  • the first valve chamber further includes a second ring groove formed on the inner circumferential surface of the sliding section of the first valve seat, and the second valve seal sealing between the inner circumferential surface of the first valve chamber and the outer circumferential surface of the first valve seat.
  • the sealing ring is provided in the second ring groove.
  • the residual pressure eliminating pipe connecting device is installed in the first valve chamber so that one end is supported, the other end elastically supports the first valve seat, and the periphery of the first valve hole when the second body is separated.
  • a first spring providing an elastic force to be in close contact with the first valve body and slidingly returning the first valve seat;
  • the second shaft valve may further include a second spring for advancing and returning forward.
  • the second valve body is installed in the second valve chamber to be fixed to the rear side of the second shaft valve, and the second guide hole penetrates the rear shaft of the second shaft valve to guide the retraction and the forward of the second shaft valve. It may further include a second valve support portion having a flow path formed around the second guide hole.
  • the second shaft valve is protruding forward and rearward, the front is in contact with the end of the first valve body when the second body is coupled to the second shaft portion penetrating the second guide hole
  • a second valve portion protruding in a disc shape around the second shaft portion to be in close contact with and detachable from the second valve seat portion and blocking and opening the flow path
  • the second valve portion is provided with a fourth ring groove and a fourth portion formed at an edge portion thereof. It may be provided in the ring groove may be provided with a fourth sealing ring in close contact with and detachable from the second valve seat portion.
  • the first valve body includes a first valve support portion which supports the first valve body portion and the first valve body portion and is fixedly installed in the first valve chamber, wherein the first valve body portion has a second shaft when the second body is coupled.
  • a third sealing ring formed in the third ring groove and the third ring groove to be in close contact with the periphery of the first valve hole, and the first fastening part may be bolted to the second fastening part formed on the first valve support part.
  • the second valve chamber includes a second valve hole formed by an end of the second valve seat portion protruding from the inner circumferential surface and penetrating the second shaft valve, 2
  • the end portion of the valve seat portion has a protrusion projecting rearwardly opposite to the engagement direction with the first body to seat the fourth sealing ring
  • the second valve portion includes a second plate portion and a fourth sealing ring in a disk shape.
  • a cover portion is further provided to fix the fourth ring groove, and the fourth ring groove is formed at an edge portion of the front surface side of the second plate portion in the engagement direction with the first body, and the fourth sealing ring may be a disc annular sealing ring.
  • first valve support portion is provided with a radial projection on the front side, and is screwed to the inner circumferential surface of the first valve chamber, the second coupling portion is a groove open to the rear, and the first valve seat protrudes inwardly to close the first valve hole.
  • the periphery of the first valve hole to be formed is projected to the rear in the direction in which the second body is coupled to be seated on the third sealing ring, the first valve body is a first shaft valve having the same structure as the second shaft valve, and the rear protrusion
  • the first fastening part and the protruding front part form a first shaft part of the first shaft valve
  • the first valve part is formed to protrude in a disc shape around the first shaft part
  • the first valve part is a disc shaped first plate.
  • a cover portion for fixing the third and third sealing rings to the third ring groove is further provided, wherein the third ring groove is formed at an edge portion of the front surface of the first plate portion, and the third sealing ring may be a disc annular sealing ring.
  • the first body may further include a service port formed around and in communication with the first valve chamber.
  • the residual pressure relief piping connecting device may further include a tubular connector coupled to at least one of the front side of the first body and the rear side of the second body.
  • Figure 1 is a schematic cross-sectional view showing a coupling state of the residual pressure relief pipe connecting device according to an embodiment of the present invention.
  • 2A and 2B are cross-sectional views schematically illustrating a partially separated state of the residual pressure eliminating pipe connecting device according to one embodiment of the present invention, respectively.
  • 3 is a cross-sectional view schematically showing a completely separated state of the residual pressure removing pipe connecting device according to FIG.
  • Figure 4a is a perspective view schematically showing the external appearance of the separated pressure relief pipe connecting device according to an embodiment of the present invention.
  • 4B to 4C are perspective views schematically illustrating the external shape of the residual pressure eliminating pipe connecting device according to the exemplary embodiment of the present invention, respectively.
  • FIG. 5 is a view schematically illustrating a second body of the residual pressure eliminating pipe connecting device according to an example of the present disclosure.
  • 6 is a view schematically showing a connection fixture of the residual pressure relief pipe connecting apparatus according to an example of the present invention.
  • the residual pressure eliminating pipe connecting device includes a first body 10, a first valve body 30, a first valve seat 50, a second body 20, and a second valve body ( 40 and a connecting fixture 70.
  • the first body 10 is formed with a first valve chamber 10a therein.
  • the 1st valve body 30 is installed in the 1st valve chamber 10a, and is supported.
  • the first valve seat 50 has a first valve hole 51 through which the first valve body 30 passes, and is elastically supported in the first valve chamber 10a and slides. In accordance with the sliding movement of the first valve seat 50, the periphery of the first valve hole 51 is detached from the first valve body 30, and the first valve hole 51 is opened and closed.
  • the second body 20 has a second valve chamber 20a having a second valve seat portion 21 protruding from an inner circumferential surface thereof.
  • the front portion of the second body 20 is removably inserted into the first valve chamber 10a and the second body 20 is coupled behind the first body 10.
  • the second body 20 pushes the first valve seat 50 forward to open the first valve hole 51.
  • the second valve body 40 is installed in the second valve chamber 20a and includes a second shaft valve 41.
  • the second shaft valve 41 of the second valve body 40 is pushed backward by the end of the first valve body 30 and the second valve The flow path of the second valve chamber 20a is opened apart from the seat portion 21.
  • connection fixture 70 When the second body 20 is separated from the first body 10, the second shaft valve 41 of the second valve body 40 is moved forward by the elastic force, and the second valve seat 21 It rests and blocks the flow path.
  • one end 70a of the connection fixture 70 is inserted into and supported around one of the first and second bodies 10 and 20.
  • the connecting fixture 70 has a second end coupled to the outer peripheral surface of the other one of the first and second bodies 10 and 20 when the second body 20 is coupled into the first valve chamber 10a.
  • at least one residual pressure removing groove 73 is formed on the inner circumferential surface of the other end of the connecting fixture 70.
  • the residual pressure eliminating pipe connecting device includes a first body 10, a first valve body 30, a first valve seat 50, a second body 20, The second valve body 40 and the connecting fixture 70 are included.
  • the first body 10 is formed with a first valve chamber 10a therein.
  • the 1st valve body 30 is installed in the 1st valve chamber 10a, and is supported.
  • the first valve seat 50 is elastically supported in the first valve chamber 10a and slides.
  • the first valve seat 50 includes a first valve hole 51 through which the first valve body 30 passes.
  • the periphery of the first valve hole 51 is detached from the first valve body 30, and the first valve hole 51 is opened and closed.
  • the second body 20 has a second valve chamber 20a having a second valve seat portion 21 protruding from an inner circumferential surface thereof.
  • the front portion of the second body 20 is removably inserted into the first valve chamber 10a and the second body 20 is coupled behind the first body 10.
  • the second body 20 pushes the first valve seat 50 forward to open the first valve hole 51.
  • the second valve body 40 is installed in the second valve chamber 20a and includes a second shaft valve 41.
  • the second shaft valve 41 of the second valve body 40 is pushed backward by the end of the first valve body 30 and the second valve
  • the flow path of the second valve chamber 20a is opened apart from the seat portion 21.
  • connection fixture 70 is inserted into and supported around one of the first and second bodies 10 and 20.
  • the connecting fixture 70 has a second end coupled to the outer peripheral surface of the other one of the first and second bodies 10 and 20 when the second body 20 is coupled into the first valve chamber 10a.
  • At least one residual pressure removing hole 23 communicating with the second valve chamber 20a is provided around the front portion of the second body 20.
  • at least one residual pressure removing groove 73 is formed on the inner circumferential surface of the other end of the connecting fixture 70.
  • FIGS. 2A and 2B show the nut-fastening part loosened state of the connecting fixture 70.
  • 2A illustrates a state in which the residual pressure elimination hole 23 does not cross the first sealing ring 12a and thus the sealing is maintained as the partial retreat of the second body 20 from the first valve chamber 10a.
  • 2b shows that the fluid in the second valve chamber 20a flows around the front portion of the second body 20 through the residual pressure elimination hole 23 as the residual pressure elimination hole 23 is retracted beyond the first sealing ring 12a.
  • the state which can escape between the inner peripheral surfaces of the 1st valve chamber 10a is shown. Referring to FIG.
  • the fluid in the second valve chamber 20a flows in the residual pressure relief hole when the nut connection portion of the connection fixture 70 is released, as the partial body of the second body 20 is retracted from the first valve chamber 10a. 23) is discharged along the gap between the front circumference of the second body 20 and the inner circumferential surface of the first valve chamber 10a and the residual pressure relief groove 73, and the second valve chamber 20a, specifically, The residual pressure in some spaces to be separated can be eliminated.
  • the residual pressure relief piping connecting device may further include a first spring 60a and a second spring 60b.
  • the residual pressure eliminating pipe connecting device may further include a pipe connector 80.
  • the first body 10 and the second body 20 may be coupled to and separated from each other.
  • a part of the second body 20 may be inserted into the first body 10.
  • the connecting fixture supported on the outer peripheral surface of any one of the first body 10 and the second body 20 An insertion coupling into the interior of the first body 10 can be fixed and supported by screwing with the remaining outer circumferential surface by 70.
  • the first body 10 and the second body 20 may be made of the same material, but is not limited thereto.
  • the first body 10 has a first valve chamber 10a formed therein.
  • the first valve chamber 10a forms a flow path through which the fluid flows.
  • a part of the second body 20 may be fitted into the first valve chamber 10a.
  • the first valve chamber 10a of the first body 10 is provided with a first valve body 30 and a first valve seat 50.
  • the first valve body 30 may be fixedly installed in the first valve chamber 10a, and the first valve seat 50 may be slidably moved in the first valve chamber 10a.
  • the 1st valve body 30 and the 1st valve seat 50 are mentioned later.
  • the second body 20 is inserted and coupled to the first valve chamber 10a of the first body 10.
  • the second body 20 may be separated from the first valve chamber 10a of the first body 10.
  • the front portion of the second body 20 is detachably inserted into the first valve chamber 10a and the second body 20 is coupled behind the first body 10.
  • the second body 20 has a second valve chamber 20a formed therein.
  • the second valve chamber 20a forms a flow path.
  • the second valve seat portion 21 protruding from the inner circumferential surface of the second valve chamber 20a is provided.
  • the second shaft valve 41 of the second valve body 40 which will be described later, is seated and detached to the second valve seat portion 21.
  • the second valve part 411 of the second shaft valve 41 is the second valve seat part 21.
  • the flow path of the second valve chamber 20a is blocked, and when the second body 20 is coupled to the first valve chamber 10a, the second valve portion 411 of the second shaft valve 41 is closed.
  • the flow path of the second valve chamber 20a is opened from the second valve seat portion 21 at this time.
  • At least one residual pressure removing hole 23 communicating with the second valve chamber 20a is provided around the front portion of the second body 20. do.
  • the residual pressure removing hole 23 may remove the residual pressure of the separated space by allowing the fluid in the second valve chamber 20a to escape when the second body 20 is separated from the first body 10. If the residual pressure removing hole 23 is not provided as in the present invention, the second valve chamber 20a and the first valve chamber 10a may be separated when the second body 20 is separated from the first body 10.
  • the pressure of the fluid remaining in the space of separation i.e., the residual pressure, can be thrown out as if it exploded, causing a safety problem.
  • the residual pressure removing hole 23 is the second body by allowing the fluid in the second valve chamber 20a to escape to the outside together with the residual pressure removing groove 73 formed on the inner peripheral surface of the other end of the connecting fixture 70 which will be described later (20) Make it safe and easy to remove.
  • the residual pressure removing hole 23 is illustrated as a hole penetrating around the front portion of the second body 20, but is not shown, but is illustrated according to an embodiment.
  • the groove is formed in a groove structure extending from the front end of the second body 20 to the rear side, but may be formed such that the outer periphery of the front portion of the second body 20 and the second valve chamber 20a communicate with each other.
  • a connection fixture 70 having one end supported around one of the first body 10 and the second body 20 may be provided.
  • one end of the connecting fixture 70 is shown around the second body 20 at the time of separation.
  • one end of the connecting fixture 70 is formed around the first body 10. It may be supported.
  • the other end of the connecting fixture 70 is nut-coupled around the outer circumferential surface of the other of the first body 10 and the second body 20, and the first body 10 and the second body are coupled to each other.
  • the coupling of the body 20 can be fixed.
  • the rear of the first body 10, the first valve body 30, and the first valve seat 50 means a side to which the second body 20 is coupled, and the front means an opposite side.
  • the front of the second body 20 and the second valve body 40 means the side where the second body 20 is coupled to the first body 10, the rear is interpreted to mean the opposite side. .
  • the second valve chamber 20a and the first valve chamber 10a communicate with each other by inserting into the first valve chamber 10a of the second body 20 to form a flow path.
  • the first valve chamber 10a and the inserted second body 20 are sealed between the first valve chamber 10a and the inserted second body 20 so that the fluid flowing through the communication passage between the first valve chamber 10a and the second valve chamber 20a does not leak. .
  • the first valve chamber 10a may include a first ring groove 11a formed on an inner circumferential surface of the engagement side with the second body 20.
  • the first sealing ring 12a is provided in the first ring groove 11a.
  • the first sealing ring 12a seals between the inner circumferential surface of the first valve chamber 10a and the outer circumferential surface of the second body 20.
  • the first sealing ring 12a may be an elastic O-ring, for example, a rubber O-ring.
  • the first sealing ring 12a may seal between the outer circumferential surface of the second body 20 and the inner circumferential surface of the first valve chamber 10a when the second body 20 is inserted into and coupled to the first body 10.
  • the residual pressure removing hole 23 formed around the front portion of the second body 20 is a portion that is in close contact by the first sealing ring (12a) It is disposed more forward.
  • the residual pressure removing hole 23 is used to partially retract the second body 20 from the first valve chamber 10a according to the partial loosening of the nut-fastening portion of the connecting fixture 70 which will be described later. Therefore, it is arrange
  • the fluid in the second valve chamber 20a is disposed in the rear of the first valve chamber 10a as the residual pressure elimination hole 23 is disposed behind the contact portion of the first sealing ring 12a. It may be discharged into a gap between the inner circumferential surface of the front and the outer peripheral surface of the front portion of the second body (20).
  • the first sealing ring 12a may have a second body 20. ) Is sealed between the outer circumferential surface of the second body 20 and the inner circumferential surface of the first valve chamber 10a at the time of insertion coupling, and the outer circumferential surface of the first valve seat 50 and the first valve chamber when the second body 20 is separated. (10a) It can seal between inner peripheral surfaces.
  • the residual pressure removing hole 23 is disposed in front of the portion that is in close contact by the first sealing ring 12a at the time of maximum engagement of the second body 20, and According to the partial retreat, it is disposed behind the portion that is in close contact with the first sealing ring 12a.
  • the residual pressure removing hole 23 may be formed near the front end of the second body 20.
  • the first valve chamber 10a may further include a second ring groove 11b on an inner circumferential surface thereof.
  • the second ring groove 11b is formed on the inner circumferential surface of the sliding section of the first valve seat 50 to be described later.
  • the second ring groove 11b is provided with a second sealing ring 12b.
  • the second sealing ring 12b seals between the inner circumferential surface of the first valve chamber 10a and the outer circumferential surface of the first valve seat 50.
  • the other end of the first valve body 30 and the one end of the second shaft valve 41 are dropped while the first and second bodies 10 and 20 are separated.
  • the first sealing ring 12a seals between the outer circumferential surface of the first valve seat 50 and the inner circumferential surface of the first valve chamber 10a
  • the second sealing ring ( 12b) seals between the outer peripheral surface of the second body 20 and the inner peripheral surface of the first valve chamber 10a. Accordingly, since the flow paths of the first body 10 and the second body 20 are all individually blocked before the first body 10 and the second body 20 are completely separated, the fluid, for example, gas Alternatively, leakage of the refrigerant may be minimized.
  • the leakage of fluid in the pipe is minimized so that the pipe can be separated without substantial fluid loss (leak).
  • the residual pressure removing hole 23 is the first sealing according to the partial retreat of the second body (20) It is disposed behind the portion that is in close contact by the ring 12a, so that the fluid in the second valve chamber 20a is a gap between the inner circumferential surface of the first valve chamber 10a and the outer circumferential surface of the front portion of the second body 20. May be discharged.
  • the second valve hole 20a is formed by the end of the second valve seat portion 21 protruding from the inner circumferential surface.
  • the second valve hole 21a provided in the second valve chamber 20a penetrates through the second shaft valve 41 described later.
  • an end portion of the second valve seat portion 21 around the second valve hole 21a may include a protrusion 211 protruding rearwardly opposite to the coupling direction with the first body 10.
  • the protrusion 211 of the second valve seat portion 21 is a portion on which the second shaft valve 41 is seated.
  • the second valve portion 411 of the second shaft valve 41 for example, the fourth sealing ring 411c, which is described later, may be in close contact with the protrusion 21a, and a flow path of the second valve chamber 20a may be blocked.
  • a first step 13a for supporting the front end of the first valve body 30 to be described later is formed on the front side of the inner circumferential surface of the first valve chamber 10a.
  • the first step 13a may be formed by the pipe connecting part 17 formed on the front side of the first body 10 as shown in FIGS. 1 to 3, or may be separately formed.
  • a third step 13b for supporting one end of the first spring 60a to be described later may be provided on the inner circumferential surface of the first valve chamber 10a.
  • the third step 13b may be provided on the rear side of the first step 13a.
  • the inner diameter of the first step 13a may be smaller than the inner diameter of the third step 13b.
  • a second step 22 may be further formed on the inner circumferential surface of the second valve chamber 20a to support the second valve support part 43 described later.
  • the first body 10 may have a tube connecting portion 17 formed at a front side thereof, that is, at an opposite side to which the second body 20 is coupled.
  • the tube connecting portion 17 may be formed on the rear side of the second body 20, unlike in FIGS. 1 to 4C. 1 to 4C, the pipe connecting part 17 may be implemented in various shapes as a part connecting pipes.
  • the first body 10 may further include a service port 15 formed around and in communication with the first valve chamber 10a.
  • the fluid for example, the refrigerant
  • the fluid may be replenished to the first valve chamber 10a or the fluid may be withdrawn from the first valve chamber 10a.
  • the other side of the service port 15 may be closed by a plug (not shown).
  • the service port 15 may be formed to communicate with the third step 13b forming portion.
  • First valve body 30 and second valve body 40 are identical to First valve body 30 and second valve body 40
  • the 1st valve body 30 and the 2nd valve body 40 are examined.
  • the first valve body 30 is installed and supported in the first valve chamber 10a
  • the second valve body 40 is installed in the second valve chamber 20a.
  • the first valve body 30 penetrates through the first valve hole 51 of the first valve seat 50 described later.
  • One end of the first valve body 30, for example, may be installed to be fixed to the first valve chamber 10a.
  • one end of the first valve body 30 is fixedly supported by the first step 13a of the first valve chamber 10a and may be installed in the first valve chamber 10a.
  • a flow path is formed in the clearance space between the inner circumferential surface of the first valve chamber 10a and the first valve body 30.
  • the other end of the first valve body 30 is installed to pass through the first valve hole 51 of the first valve seat 50 described later.
  • the fixed installation of the first valve body 30 into the first valve chamber 10a is provided with a pipe connecting portion 17 formed integrally with the first body 10 as shown in FIGS. 1 to 3.
  • the front portion of the first body 10 is not the rear portion of the second body 20 of FIGS. 1 to 3.
  • the first valve support part 33 of the first valve body 30 may be inserted into and installed into the first valve chamber 10a through the front side of the first body 10.
  • the fixed installation of the second valve body 40 into the second valve chamber 20a may be inserted through the rear side of the second body 20 as shown in FIGS. 1 to 3.
  • the second valve body 40 includes a second shaft valve 41.
  • the second shaft valve 41 of the second valve body 40 is pushed backward by the end of the first valve body 30. At this time, the second shaft valve 41 is separated from the second valve seat portion 21 to open the flow path of the second valve chamber 20a.
  • the second shaft valve 41 of the second valve body 40 is moved forward by the elastic force and the second valve seat part 21 is removed. It is seated at and blocks the flow path.
  • the second shaft valve 41 is returned to the front by the elastic force at the time of separation of the second body 20, for example, the elastic force of the second spring 60b to be described later, the second valve seat portion ( 21 and closes the flow path of the second valve chamber 20a. That is, the second shaft valve 41 blocks the flow path of the second valve chamber 20a when the second shaft valve 41 is separated from the first valve chamber 10a of the second body 20 and the first valve of the second body 20. When inserting into the chamber 10a, the flow path of the second valve chamber 20a is opened.
  • the second valve body 40 may further include a second valve support 43 in addition to the second shaft valve 41.
  • the second valve support part 43 may be provided to be fixed in the second valve chamber 20a and include a second guide hole 43a for guiding the retraction and the forward of the second shaft valve 41.
  • the second valve body 40 may be made of stainless steel, but is not limited thereto.
  • the second shaft valve 41 of the second valve body 40 has a second shaft portion 413 and a second valve portion 411.
  • the second shaft portion 413 protrudes forward and backward.
  • the front of the second shaft portion 413 is in contact with the end of the first valve body 30 when engaging the first body 10 of the second body 20.
  • the front of the second shaft portion 413 passes through the second valve hole 21a formed by the second valve seat portion 21 to be in contact with the end portion of the first valve body 30.
  • the rear of the second shaft portion 413 penetrates through the second guide hole 43a of the second valve support 43. At this time, the front and rear movement of the second shaft valve 41 is guided by the second guide hole 43a.
  • the second valve portion 411 protrudes in a disk shape around the second shaft portion 413. At this time, the second valve part 411 is in close contact with and detachable from the second valve seat part 21 to block and open the flow path. That is, referring to Figure 2a or / and 2b, the second shaft valve 41 is burned from the rear side of the second valve portion 411 when detached from the first valve chamber 10a of the second body 20. It is sexually supported and is seated in the second valve seat portion 21 of the second valve chamber 20a to block the flow path of the second valve chamber 20a. For example, when the second body 20 is separated from the first valve chamber 10a, the second valve part 411 is seated on the second valve seat part 21 by the elastic force of the second spring 60b which will be described later.
  • the second shaft valve 41 is pushed backward by the other end of the first valve body 30 when the second body 20 is inserted and coupled, and the second valve portion 411 is moved to the second valve.
  • the flow path of the second valve chamber 20a is opened while being separated from the seat portion 21.
  • the second valve part 411 may include a fourth ring groove 411b and a fourth sealing ring 411c in order to block and open the flow path through close contact with and detachable from the second valve seat part 21.
  • the fourth ring groove 411b is formed at an edge portion of the second valve portion 411.
  • the fourth sealing ring 411c is installed in the fourth ring groove 411b to be in close contact with and detachable from the second valve seat 21.
  • the fourth sealing ring 411c is in close contact with the protrusion 211 of the second valve seat portion 21 to seal the flow path of the second valve chamber 20a.
  • the fourth sealing ring 411c may be formed of a resin material, for example, a Teflon resin material.
  • the second valve part 411 may further include a second plate part 411a and a cover part 411d.
  • the second plate portion 411a protrudes in a disc shape around the second shaft portion 413.
  • the cover portion 411d fixes the fourth sealing ring 411c to the fourth ring groove 411b.
  • the cover portion 411d may prevent the fourth sealing ring 411c from falling from the fourth ring groove 411b.
  • the cover portion 411d is provided on the front side of the second plate portion 411a and covers the fourth sealing ring 411c to partially expose the fourth sealing ring 411c.
  • the exposed fourth sealing ring 411c becomes a portion to be seated on the second valve seat portion 21.
  • the fourth ring groove 411b is formed at the edge portion of the front surface side of the second plate portion 411a in the engagement direction with the first body 10.
  • the fourth sealing ring 411c may be a disc annular sealing ring.
  • the second valve body 40 may further include a second valve support 43 in addition to the second shaft valve 41.
  • the second valve support portion 43 is fixed to the rear side of the second shaft valve 41 in the second valve chamber 20a.
  • the second valve support 43 has a second guide hole 43a.
  • the second guide hole 43a penetrates the rear shaft of the second shaft valve 41, that is, the rear of the second shaft portion 413, to guide the retraction and the forward of the second shaft valve 41.
  • the second valve support portion 43 also forms an open flow path, ie at least one flow path hole 43b, around the second guide hole 43a.
  • the one or more flow path holes 43b may be disposed radially around the second guide hole 43a.
  • the second valve support part 43 includes a protrusion into which the second spring 60b to be described later is fitted, and a second guide hole 43a is formed in the protrusion, or is not shown.
  • the second guide hole 43a and the passage hole 43b may be formed in a plate shape without a protrusion.
  • the second valve support 43 is supported by the second step 22 formed on the inner circumferential surface of the second valve chamber 20a and may support the other end of the second spring 60b to be described later.
  • the second valve support part 43 may be supported on one surface side, for example, a surface side for supporting the second spring 60b on the second step 22.
  • the other surface side of the second valve support part 43 is supported or not shown by the snap ring 47, but the tubular connector 80, which will be described later, is not shown in FIG. 1 to 3.
  • the tubular connector 80 which will be described later, is not shown in FIG. 1 to 3.
  • the 1st valve body 30 is looked at in more detail.
  • the first valve body 30 may include a first valve body portion 31 and a first valve support portion 33.
  • the first valve body portion 31 penetrates through the first valve hole 51 of the first valve seat 50 to be described later, and the first valve support portion 33 supports the first valve body portion 31. And may be fixed to the first valve chamber 10a.
  • the first valve body 30 or the first valve body portion 31 of the first valve body 30 may be made of stainless steel, but is not limited thereto.
  • the first valve body portion 31 may include a rear protrusion 313b, a first fastening portion 313a, and a first valve portion 311.
  • the rear protrusion 313b pushes the front end of the second shaft valve 41, for example, the front end of the second shaft 413, when the second body 20 is engaged. That is, in the first valve body 30, even when the second body 20 is inserted and coupled, the first valve support part 33 is fixed to the first valve chamber 10a, while the second shaft valve 41 is second to the second valve 20.
  • the rear end of the first valve body portion 31 at the time of insertion coupling of the second body 20 is the second shaft valve 41
  • the front end of the At this time the second valve portion 411 of the second shaft valve 41 is pushed into the second valve chamber 20a by pushing the second shaft valve 41 by the rear end of the first valve body portion 31.
  • the flow path of the second valve chamber 20a is opened apart from the formed second valve seat portion 21.
  • the first fastening portion (313a) is a portion formed in the front end of the first valve body portion 31 is coupled to the first valve support portion 33.
  • the first valve portion 311 is formed to protrude around the first valve body portion 31 to be in close contact with and detached from the circumference of the first valve hole 51 of the first valve seat 50 to be described later.
  • the first valve part 311 may include a third ring groove 311b and a third sealing ring 311c.
  • the third ring groove 311b is formed at the protruding portion protruding from the circumference of the first valve body portion 31.
  • the third sealing ring 311c is installed in the third ring groove 311b to be in close contact with and detached from the circumference of the first valve hole 51.
  • the first valve seat 50 When the second body 20 is separated from the first valve chamber 10a, the first valve seat 50 may be connected to the third sealing ring 311c according to the elastic movement of the first valve seat 50 described later.
  • surroundings of the 1st valve hole 51 are closely contacted, and the flow path of the 1st valve chamber 10a is interrupted
  • the first fastening part 313a may be bolted to the second fastening part 33b formed on the first valve support part 33.
  • the first valve body 31 may be a first shaft valve 31 having the same structure as the second shaft valve 41.
  • the rear protrusion 313b and the protrusion front portion of the first valve body portion 31 form the first shaft portion 313 of the first shaft valve 31.
  • the protruding front portion of the first shaft portion 313 protrudes forming the first fastening portion 313a.
  • the first valve portion 311 protrudes in a disc shape around the first shaft portion 313.
  • the first valve portion 311 may further include a cover portion 311d for fixing the disc-shaped first plate portion 311a and the third sealing ring 311c to the third ring groove 311b.
  • the third ring groove 311b may be formed at an edge portion of the front surface of the first plate portion 311a, and the third sealing ring 311c may be a disc annular sealing ring.
  • the front surface of the first plate portion 311a is a direction side surface on which the first fastening portion 313a is formed.
  • the first valve body 31 may have a structure different from that of the second shaft valve 41.
  • the third ring groove of the first valve body portion 31 is formed so that the open portion is radially directed at a portion projecting from the circumference, and the third sealing ring installed in the third ring groove is made of an O-ring made of an elastic material, which will be described later.
  • An end side of the first valve hole 51 of the first valve seat 50 may be in close contact with the third sealing ring and the flow path may be blocked.
  • the first valve support part 33 is formed with a radial protrusion 33a on the front side and screwed to the inner circumferential surface of the first valve chamber 10a.
  • the front radial protrusion 33a of the first valve support part 33 may be supported by the first step 13a of the first valve chamber 10a.
  • the front radial protrusion 33a of the first valve support part 33 may be screwed onto the inner circumferential surface of the first valve chamber 10a and supported on the first step 13a.
  • the second fastening portion 33b of the first valve support portion 33 is a groove open to the rear, and the first fastening portion 313a of the first valve body portion 31 is screwed to the second fastening portion 33b. Can be.
  • the first valve seat 50 is elastically supported in the first valve chamber 10a and slides.
  • the first valve seat 50 includes a first valve hole 51 through which the first valve body 30 passes.
  • the first valve hole 51 is penetrated by the first valve body portion 31 of the first valve body 30.
  • the first valve seat 50 may slide along the circumference of the first valve body 31 of the first valve body 30. That is, the first valve seat 50 slides forward according to the insertion coupling of the second body 20 into the first valve chamber 10a and slides backward by elastic force according to the separation of the second body 20. You can retreat.
  • the periphery of the first valve hole 51 is detached from the first valve body 30, and the first valve hole 51 is opened and closed.
  • the elastic support for the first valve seat 50 may be made, for example, by the first spring 60a described below.
  • the first valve seat 50 may be made of the same material, but is not limited thereto.
  • the first valve seat 50 is returned by an elastic force when the second body 20 is separated, and when the first valve seat 50 is returned, the periphery of the first valve hole 51 is the first valve body 30, for example, the first valve body.
  • the first valve part 311 may be in close contact with the first valve part 311, and the first valve hole 51 may be closed.
  • the outer circumferential surface of the first valve seat 50 may be installed to be slidably movable in the first valve chamber 10a, and may be installed to maintain a seal with the inner circumferential surface of the first valve chamber 10a.
  • the sealing ring provided in the ring groove of the first valve chamber 10a may be sealed between the inner circumferential surface of the first valve chamber 10a and the outer circumferential surface of the first valve seat 50.
  • the inner circumferential surface of the first valve chamber 10a and the first valve seat 50 are formed by the second sealing ring 12b provided in the second ring groove 11b of the first valve chamber 10a. It can be sealed between the outer peripheral surface of the.
  • the second sealing ring 12b is disposed in the sliding range section of the first valve seat 50, thereby allowing the second sealing ring 12b to be disposed during the sliding section of the first valve seat 50 according to the insertion and removal of the second body 20. 1 Between the inner circumferential surface of the valve chamber 10a and the outer circumferential surface of the first valve seat 50 may be sealed.
  • the first valve seat 50 forms the first valve hole 51 by a portion projecting inwardly.
  • a protrusion 511 protruding to the rear which is a direction in which the second body 20 is coupled, may be formed around the first valve hole 51 protruding inward.
  • the first valve of the first valve body 30 when the protrusion 511 protruding around the first valve hole 51, that is, the rear side, is separated from the first valve chamber 10a of the second body 20.
  • the body 31 may be seated on the third sealing ring 311c constituting the first valve 311 of the first valve body 31, for example.
  • the first valve seat 50 may have an inclined surface (not shown) such that an inner diameter thereof becomes smaller toward the first valve hole 51. have.
  • the inclined surface or the end portion of the inclined surface is formed in the third ring groove opened in the radial direction around the first valve body 30 at the time of separation from the first valve chamber 10a of the second body 20.
  • the flow path of the first valve hole 51 may be blocked by the third sealing ring.
  • connection fixture 70 will be described. 1 to 4C, one end of the connecting fixture 70 is supported by being fitted around one of the first and second bodies 10 and 20.
  • the other end of the connecting fixture 70 is nut-fastened to the outer peripheral surface of the other one of the first and second bodies 10 and 20 when the second body 20 is coupled into the first valve chamber 10a. Accordingly, the coupling of the first body 10 and the second body 20 is fixed by the fastening of the connecting fixture 70.
  • the connection fixture 70 may be made of the same material, but is not limited thereto.
  • At least one residual pressure removing groove 73 is formed on the inner circumferential surface of the other end of the connecting fixture 70.
  • the residual pressure removing groove 73 is formed in a portion of the inner circumferential surface thread area coupling section of the connecting fixture 70 that is nut-fastened to the outer peripheral surfaces of the other one of the first and second bodies 10 and 20, thereby connecting the connecting fixture ( After the 70 is partially loosened, the fluid may be effectively discharged through the residual pressure removing groove 73.
  • one end of the connecting fixture 70 is supported by being fitted around the second body 20, and the other end of the connecting fixture 70 is illustrated as being nut-fastened to the outer circumferential surface of the first body 10. .
  • one end of the connection fixture 70 is supported by being fitted around the first body 10, the other end may be nut-fastened to the outer peripheral surface of the second body (20).
  • one end of the connecting fixture 70 may be bent in the center direction to be supported around one of the first body 10 and the second body 20.
  • the stepped portion 24 may protrude from the outer circumferential surface of any one of the first body 10 and the second body 20 in which the bent portion of the connection fixture 70 is supported.
  • the stepped portion 24 is the first body ( 10) and the other end of the second body 20 is in close contact with the nut fastening range may be limited.
  • the residual pressure eliminating pipe connecting device may further include a first spring 60a and a second spring 60b.
  • the first spring 60a is installed in the first valve chamber 10a to support one end thereof.
  • the other end of the first spring 60a elastically supports the first valve seat 50.
  • the first spring 60a may be installed around the circumference of the first valve body 30.
  • one end of the first spring 60a may be supported by the third step 13b formed on the inner circumferential surface of the first valve chamber 10a as shown in FIGS. 1 to 3, or the first valve chamber may be not shown. It may be supported on the first valve support part 33 of the first valve body 30 fixedly installed at 10a.
  • the other end of the first spring 60a elastically supports the front end of the first valve seat 50 and may transmit an elastic force to the first valve seat 50 when the second body 20 is separated. Accordingly, the first spring 60a applies an elastic force such that the circumference of the first valve hole 51 closely contacts the first valve body 30 when the second body 20 is separated from the first valve chamber 10a. It can provide a sliding return to the first valve seat 50. That is, when the first spring 60a is inserted into and coupled to the first valve chamber 10a of the second body 20, the first valve seat 50 supported by the first spring 60a is pushed down and contracted to provide elastic force. And the elastic force accumulated in the first spring 60a is provided to the first valve seat 50 when the second body 20 is separated from the first valve chamber 10a.
  • the first valve seat 50 moves along the first valve chamber 10a by the elastic force of the first spring 60a, and accordingly, by the first valve body portion 31 of the first valve body 30.
  • the first valve hole 51 of the first valve seat 50 is sealed and the flow path of the first valve chamber 10a may be blocked.
  • the second spring 60b is installed in the second valve chamber 20a to support one end thereof.
  • the other end of the second spring 60b elastically supports the second shaft valve 41 at the rear side.
  • the second spring 60b is provided around the rear side of the second shaft valve 41, for example, around the rear side of the second valve portion 411.
  • one end of the second spring 60b is supported by the second valve support 43 as shown in FIGS. 1 to 3 or is not shown but is supported by a step formed on the inner circumferential surface of the second valve chamber 20a. May be
  • the other end of the second spring 60b may support the second shaft valve 41 on the rear side, for example, the rear surface of the second valve portion 411.
  • the second spring 60b provides an elastic force so that the second shaft valve 41 comes into close contact with the second valve seat 21 when the second body 20 is removed from the first valve chamber 10a. can do.
  • the second spring 60b may be brought into close contact with the second valve seat portion 21 by returning the second shaft valve 41 forward. That is, when the second spring 60b is inserted into and coupled to the first valve chamber 10a of the second body 20, the second spring 60b is pushed by the second shaft valve 41 by the rear end of the first valve body 30. It contracts and accumulates elastic force, and provides elastic force to the second valve portion 411 of the second shaft valve 41 when the second body 20 is separated from the first valve chamber 10a. 411 is seated on the second valve seat 21 to be sealed.
  • the residual pressure eliminating pipe connecting device may further include a pipe connector 80.
  • the tubular connector 80 may be coupled to at least one of the front side of the first body 10 and the rear side of the second body 20. 1 to 4c, the tubular connector 80 is coupled to only the rear side of the second body 20, and the first body 10 is illustrated as having a tubular connecting portion 17. Both the first body 10 and the second body 20 may be provided with a tubular connector 80.
  • the tubular connector 80 may be a nipple, union or other tubular seam.
  • the pipe connector 80 may be made of the same material, but is not limited thereto.
  • the tubular connector 80 When the tubular connector 80 is provided, the tubular connector 80 is removed so that the first valve chamber 10a or the second valve in the separated direction of the first body 10 and / or the second body 20.
  • the 1st valve body 30 and / or the 2nd valve body 40 can be inserted in the chamber 20a.
  • the second valve body (2) is formed at the front side of the second valve chamber 20 a by the second valve seat portion 21 protruding from the inner circumferential surface of the second valve chamber 20 a.
  • the pipe connector 80 coupled to the rear side of the second body 20 can be removed to insert the second valve body 40 into the second valve chamber 20a.
  • the tubular connector 80 may be screwed to the outer circumferential surface of the second body 20 or / and the first body 10, or, unlike illustrated, the second body ( It may be inserted and screwed on the inner circumferential surface of the second valve chamber 20a of 20 and / or the first valve chamber 10a of the first body 10.
  • a sealing ring 81b may be provided at a fastening portion between the tubular connector 80 and the second body 20 or / and the first body 10 to seal the coupling gap.
  • the sealing ring 81b is inserted into the ring groove 81a of the tubular connector 80 and can seal the fastening portion between the tubular connector 80 and the second body 20 or / and the first body 10. have.
  • both the first body 10 and the second body 20 may be integrally provided with the tube connecting portion 17 shown in FIGS. 1 to 4C without the detachable tube connector 80.
  • a bracket 90 may be provided around the first body 10 and / or the second body 20.
  • the bracket 90 serves to fix the residual pressure relief pipe connecting device to the wall or other support.
  • the bracket 90 and a wall or other support may be coupled to each other by bolts or other fastening means to fix and support the residual pressure removing pipe connecting device.
  • the bracket 90 may be provided only at one side of the first body 10 and the second body 20.
  • Residual pressure relief pipe connecting apparatus may be connected to both sides of the pipe, one side may be connected to the pipe connector (not shown) connected to the pipe is connected to the other side is required for the pipe connection.
  • the air conditioner is an air conditioner connected by connecting piping to allow circulation between the first and second heat exchangers (not shown).
  • the main body which is the first heat exchanger
  • the responder which is the second heat exchanger
  • the connecting pipe may be installed in the connecting pipe. Accordingly, the connecting pipe is separated by the separation of the residual pressure eliminating pipe connecting device, and the first and second heat exchange devices may be separated.
  • the air conditioner main body and the air conditioner outdoor unit are connected to the connecting pipe, and the residual pressure relief type pipe connecting device according to any one of the above-described embodiments is installed in the connecting pipe, the air conditioner main body and the air conditioner outdoor unit are easily removed with little refrigerant loss. It can be separated and recombined later.
  • the pipe can be separated with the residual pressure removed, so that the pipe can be separated safely.
  • the present invention relates to a residual pressure-removable pipe connecting device that can be safely and easily separated by preventing the one side separated by residual pressure from being separated when the pipe is separated, and to an air conditioning device having a connection pipe using the same. It can be widely used.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Safety Valves (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

La présente invention concerne un dispositif de raccordement de tuyau du type à suppression de pression résiduelle et un appareil de climatisation comprenant ledit dispositif. Selon un exemple, un dispositif de raccordement de tuyau, du type à suppression de pression résiduelle, comprend : un premier corps comportant une première chambre à vannes formée à son intérieur ; un premier corps de vanne installé dans la première chambre à vannes ; un premier siège de vanne comportant un premier trou de vanne disposé à son intérieur de sorte que le premier corps de vanne entre dans le trou, le premier siège de vanne effectuant un mouvement coulissant à l'intérieur de la première chambre à vannes et exposant/bloquant ainsi le premier trou de vanne ; un second corps comportant une seconde chambre à vannes formée à son intérieur, la seconde chambre à vannes comportant une seconde partie de siège de vanne disposée sur ladite chambre, le second corps étant introduit dans la première chambre à vannes de manière séparable et accouplé derrière le premier corps, le second corps poussant le premier siège de vanne lors de son accouplement, exposant ainsi le premier trou de vanne ; un second corps de vanne comprenant une seconde vanne d'arbre et installé dans la seconde chambre à vannes de sorte que, lors de l'accouplement des premier et second corps, la seconde vanne d'arbre soit poussée vers l'arrière par le premier corps de vanne, exposant ainsi un canal du second corps de vanne et, lors de la séparation du second corps, la seconde vanne d'arbre se déplace vers l'avant et bloque le canal ; et un dispositif de retenue de raccordement comportant une extrémité montée à la périphérie de l'un des corps parmi les premier et second corps de sorte que, lors de l'accouplement des premier et second corps, l'autre extrémité du dispositif de retenue de raccordement soit fixée à la face périphérique externe de l'autre corps. Au moins un trou d'élimination de pression résiduelle est disposé sur la périphérie du second corps de manière à permettre la communication avec la seconde chambre à vannes, et au moins une rainure d'élimination de pression résiduelle est formée sur la face périphérique interne du dispositif de retenue de raccordement.
PCT/KR2017/000924 2016-07-11 2017-01-25 Dispositif de raccordement de tuyau à suppression de pression résiduelle, et appareil ménager de climatisation Ceased WO2018012698A1 (fr)

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KR102125491B1 (ko) * 2018-09-18 2020-06-22 하이리움산업(주) 액화수소 충전포트 구조
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KR20140001020A (ko) * 2012-06-27 2014-01-06 주식회사 파카하니핀 커넥터 잔류 압력 제거 기능을 갖는 퀵 커플링 장치

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US12240927B2 (en) 2018-07-31 2025-03-04 Univation Technologies, Llc Unimodal polyethylene copolymer and film thereof
CN112431949A (zh) * 2020-12-12 2021-03-02 威海鸣川汽车技术有限公司 一种h型单向阀
CN114001216A (zh) * 2021-11-12 2022-02-01 成都肯耐特轨道交通装备有限公司 一种密接式车钩用风管连接器及其车钩
CN116518167A (zh) * 2023-06-20 2023-08-01 珠海市三达五金模具有限公司 用于制冷设备的双向保压管路连接结构

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