WO2019235159A1 - 流路切換弁 - Google Patents

流路切換弁 Download PDF

Info

Publication number
WO2019235159A1
WO2019235159A1 PCT/JP2019/019477 JP2019019477W WO2019235159A1 WO 2019235159 A1 WO2019235159 A1 WO 2019235159A1 JP 2019019477 W JP2019019477 W JP 2019019477W WO 2019235159 A1 WO2019235159 A1 WO 2019235159A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
seat surface
shaft
flow path
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/JP2019/019477
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
原　聖一
望月　健一
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.)
Fujikoki Corp
Original Assignee
Fujikoki Corp
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 Fujikoki Corp filed Critical Fujikoki Corp
Priority to CN201980025970.8A priority Critical patent/CN112189108B/zh
Publication of WO2019235159A1 publication Critical patent/WO2019235159A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/10—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together

Definitions

  • the present invention relates to a flow path switching valve.
  • the three-way valve 100 includes a valve shaft 130, a motor 105 for rotationally driving the valve shaft 130, and a valve main body 110 to which the motor 105 is attached.
  • the valve main body 110 is provided with an inlet 120, a first outlet 121, and a second outlet 122. Further, the valve main body 110 has a valve shaft fitting insertion portion 112 into which the valve shaft 130 is fitted in a watertight manner so as to be rotatable through the O-rings 135 and 135 and movable in the axial direction, and a valve shaft fitting insertion portion 112.
  • a valve seat 115 is provided on the outer periphery of the lower part of the valve body. The entire lower surface of the valve seat 115 is a smooth surface.
  • a valve body 140 is attached to a lower end portion of the valve shaft 130 protruding downward from the valve body receiving seat 115 so as to be rotatable integrally with the valve shaft 130.
  • the valve body 140 has a double cylindrical structure, and a vertical through passage 151 penetrating in the vertical direction and a groove-like passage 152 having an open upper surface are provided between the inner cylinder portion 141 and the outer cylinder portion 142.
  • valve shaft 130 is pulled upward together with the valve body 140 due to the pressure difference between the fluid (hot water) pressure in the valve body 110 and the atmospheric pressure, and the upper surface of the valve body 140 is pressed against the lower surface of the valve body receiving seat 115. It is done. As a result, the space between the longitudinal through passage 151 and the groove-like passage 152 is sealed in a watertight manner.
  • the fluid that has flowed from the inlet 120 flows out from the first outlet 121 through the longitudinal through passage 151.
  • the flow of the fluid at this time is schematically shown by a solid line arrow.
  • the valve body 140 in a state where the valve body 140 is at another rotational position rotated by a predetermined angle from the rotational position shown in FIG. It flows out from the outlet 122.
  • the flow of the fluid at this time is schematically indicated by a dashed arrow.
  • the above-described three-way valve 100 seals a space between the valve body 140 by pressing the upper surface of the valve body 140 against the lower surface of the valve body receiving seat 115 due to the differential pressure between the fluid pressure in the valve body 110 and the atmospheric pressure. Therefore, when the fluid pressure or atmospheric pressure fluctuates, there is a possibility that stable sealing performance cannot be ensured. Further, in the configuration in which the resin valve body 110 and the valve body 140 are employed in the three-way valve 100, high surface accuracy is obtained for a relatively wide portion such as the upper surface of the valve body 140 and the lower surface of the valve body receiving seat 115. It is difficult to secure the sealing property.
  • valve element 140 faces downward. A force is applied, and the valve shaft 130 and the valve body 140 move downward. As a result, a gap is created between the upper surface of the valve body 140 and the lower surface of the valve body receiving seat 115, and fluid pressure can be released to the inlet 120 and the first outlet 121. Thereafter, when the fluid pressure at the second outlet 122 decreases and returns to the normal pressure, an upward force is applied to the valve shaft 130 and the valve body 140 due to the differential pressure between the fluid pressure in the valve body 110 and the atmospheric pressure, and the valve The shaft and valve body 140 move upward.
  • valve shaft 130 and the valve body 140 cannot return to their original positions due to the sliding resistance of the O-rings 135, 135, and the gap between the upper surface of the valve body 140 and the lower surface of the valve body seat 115 There is a possibility that the sealing performance cannot be secured.
  • an object of the present invention is to provide a flow path switching valve capable of effectively ensuring the sealing performance between the valve body and the valve seat surface.
  • a flow path switching valve is disposed rotatably on a valve body provided with a valve chamber and a valve seat surface in the valve chamber, and according to the rotational position. And a valve body that opens and closes a port provided on the valve seat surface, a drive unit that includes a drive mechanism that rotates the valve body, and a valve shaft that connects the valve body and the drive mechanism.
  • a switching valve wherein the valve shaft is disposed perpendicular to the valve seat surface, the valve body is attached to one end of the valve shaft so as to be movable in the axial direction, and the valve body and the valve An elastic member compressed in the axial direction is provided between the valve shaft and the valve shaft.
  • the valve body is attached to one end portion of the valve shaft disposed orthogonal to the valve seat surface so as to be movable in the axial direction, and between the valve body and the valve shaft in the axial direction.
  • a compressed elastic member is provided. Since it did in this way, since a valve body is pressed on a valve seat surface with the restoring force of an elastic member, the sealing performance between a valve body and a valve seat surface can be ensured stably. Even when the valve body is separated from the valve seat surface by fluid pressure, it can be reliably restored to its original state by the restoring force of the elastic member, and the sealing performance between the valve body and the valve seat surface is ensured. Can be secured.
  • the elastic member is disposed in a housing space in the valve body and the valve shaft.
  • the elastic member is surrounded by the valve body and the valve shaft and is not exposed to the outside, the influence of the fluid on the elastic member can be reduced and the valve body can be stably pressed against the valve seat surface. it can. Moreover, it can suppress that an elastic member contacts another member by the influence of a fluid.
  • the valve body or the valve shaft is provided with a pressure equalizing hole that communicates the housing space with the outside.
  • one of the valve body and the valve body is provided with a positioning boss coaxial with the rotating shaft of the valve body, and the other is provided with a positioning hole into which the positioning boss is rotatably inserted. It is preferable. By doing in this way, a valve body can be arrange
  • valve seat surface protrudes from an inner wall surface of the valve body. By doing so, the area of the valve seat surface that contacts the valve body can be reduced, and the force (pressure) that presses the valve body per unit area against the valve seat surface can be increased to improve the sealing performance more effectively. Can be secured.
  • the valve seat surface includes a plurality of the ports, a plurality of annular portions surrounding each of the plurality of ports, and a connecting portion that connects the annular portions, and the connecting portion includes the plurality of the plurality of ports.
  • the valve seat surface includes a plurality of the ports, a plurality of annular portions surrounding each of the plurality of ports, and a connecting portion that connects the annular portions, and the connecting portion includes the plurality of the plurality of ports.
  • a circular member disposed along a virtual ellipse passing through the center of the annular portion, the valve body being in contact with the valve seat surface, and a valve body main body portion rotatably holding the circular member in the circumferential direction; It is preferable to have. By doing so, the circular member rotates (revolves) along with the rotation (revolution) of the valve body, or the sliding portion with the annular portion of the circular member can be dispersed. Uneven wear of the body can be reduced.
  • FIG. 6 is another cross-sectional view in which the rotational position of the valve body in the flow path switching valve in FIG. 1 is different. It is the expanded sectional view which looked at sectional drawing of FIG. 2 from the diagonal direction.
  • It is a disassembled perspective view of the flow-path switching valve of FIG.
  • It is a perspective view of the valve main body of the flow-path switching valve of FIG.
  • It is a top view of the valve seat surface of the valve main body of FIG.
  • It is a perspective view of the valve body and valve stem of the flow-path switching valve of FIG.
  • It is sectional drawing which shows the conventional flow-path switching valve.
  • FIG. 1 and 2 are sectional views (longitudinal sectional views) taken along the rotation axis of the valve body of the flow path switching valve according to one embodiment of the present invention.
  • FIG. 1 shows a state in which the valve body is in the first rotational position
  • FIG. 2 shows a state in which the valve body is in the second rotational position rotated 180 degrees from the first rotational position.
  • the flow of the fluid is schematically shown by arrows.
  • FIG. 3 is an enlarged cross-sectional view of the flow path switching valve of FIG. 2 as viewed from an oblique direction.
  • FIG. 4 is an exploded perspective view of the flow path switching valve of FIG.
  • FIG. 5 is a perspective view of the valve body of the flow path switching valve of FIG. FIG.
  • FIG. 6 is a plan view of the valve seat surface of the valve main body of FIG. 5 and a modification thereof.
  • FIG. 6A shows a configuration in which the connecting portion of the valve seat surface is displaced from the inside of the virtual perfect circle
  • FIG. 6B shows the configuration in which the connecting portion of the valve seat surface is arranged along the virtual ellipse.
  • the structure of the modified example is shown.
  • FIG. 7 is a perspective view of the valve body and the valve shaft of the flow path switching valve of FIG. 1.
  • “up, down, left and right” is used in each drawing to indicate the relative positional relationship between the members, and does not indicate an absolute positional relationship.
  • the flow path switching valve 1 of the present embodiment includes a valve body 10, a lid body 20, a valve body 30, a drive unit 40, a valve shaft 50, an elastic member 60, and the like. ,have.
  • the valve body 10 is made of a synthetic resin as a material and is formed in a substantially bottomed cylindrical shape having an open top.
  • An inlet channel 11 extending in one direction (the left direction in FIGS. 1 and 2) is provided in the peripheral wall portion 10a of the valve body 10.
  • the bottom wall portion 10b of the valve body 10 is provided with a first outlet channel 12 that extends downward and extends in the other direction opposite to the inlet channel 11 (the right direction in FIGS. 1 and 2).
  • a second outlet channel 13 extending downward is provided in the bottom wall portion 10 b of the valve body 10.
  • the inlet channel 11, the first outlet channel 12, and the second outlet channel 13 communicate with a valve chamber 14 provided in the valve body 10. Two or four or more flow paths leading to the valve chamber 14 may be provided.
  • a valve seat surface 15 is provided on the inner wall surface 10 c of the bottom wall portion 10 b of the valve body 10.
  • the valve seat surface 15 is a smooth surface protruding about 0.1 mm to 5.0 mm above the inner wall surface 10c of the bottom wall portion 10b.
  • the valve seat surface 15 is provided with a first port 16 that communicates with the first outlet channel 12 and a second port 17 that communicates with the second outlet channel 13.
  • a plurality of ports communicating with the outlet channel are provided according to the number of outlet channels.
  • the valve seat surface 15 includes two circular annular portions 15a and 15a surrounding the first port 16 and the second port 17, and two coupling portions 15b and 15b that connect the annular portions 15a and 15a to each other. Yes.
  • the annular portions 15a and 15a and the connecting portions 15b and 15b are continuous with each other.
  • the centers O and O of the first port 16 and the second port 17 are opposed to each other in the radial direction across the center (axis L) on the virtual perfect circle VC.
  • the virtual perfect circle VC passes through the centers O and O of the first port 16 and the second port 17.
  • the connection parts 15b and 15b are shifted
  • the centers O, O of the first port 16 and the second port 17 are arranged in a radial direction (major axis, long axis, sandwiching the center (axis L) on the virtual ellipse VO.
  • the connecting portions 15b and 15b may be disposed along the virtual ellipse VO.
  • the virtual ellipse VO passes through the centers O and O of the first port 16 and the second port 17.
  • the connecting portions 15b and 15b may be disposed outside the virtual perfect circle VC, or may be disposed along the virtual perfect circle VC.
  • the valve body 10 is obtained by injection molding in which a resin material is injected into a mold. Since the valve seat surface 15 protrudes from the inner wall surface 10c, the valve seat surface 15 is molded with a frame incorporated in the mold body, so that only the frame requires high surface accuracy, and the inner wall surface 10c, etc. High surface accuracy can be dispensed with for a mold body or the like that molds this part. As a result, the surface accuracy of the valve seat surface 15 having a smaller area than that when the entire inner wall surface 10c is used as the valve seat surface can be increased at low cost, and the sealing performance can be effectively ensured.
  • a cylindrical positioning boss 18 is erected on the valve seat surface 15 at an intermediate position between the first port 16 and the second port 17.
  • the lid 20 is formed in a substantially cylindrical shape using a synthetic resin as a material.
  • the lid 20 is fixedly attached to the valve body 10 so as to close the upper opening of the valve body 10, and defines the valve chamber 14 together with the valve body 10.
  • a bearing portion 21 that rotatably supports a later-described valve shaft 50 is provided.
  • the valve body 30 is accommodated in the valve chamber 14 and is rotatably disposed on the valve seat surface 15.
  • the valve body 30 opens and closes the first port 16 and the second port 17 provided on the valve seat surface 15 according to the first rotation position shown in FIG. 1 and the second rotation position shown in FIG.
  • the valve body 30 includes an annular member 31 and a disk member 32 as a circular member, and a valve body main body 33.
  • the annular member 31 and the disk member 32 are members formed into a ring shape and a disk shape by cutting a synthetic resin such as polytetrafluoroethylene (PTFE) or polyacetal (POM), for example.
  • PTFE polytetrafluoroethylene
  • POM polyacetal
  • the annular member 31 and the disc member 32 are in contact with the valve seat surface 15 and overlap the annular portions 15a and 15a of the valve seat surface 15 at the first rotational position and the second rotational position.
  • the central locus of the annular member 31 and the disk member 32 coincides with the virtual perfect circle VC when viewed from the direction of the rotation axis.
  • the valve body main body 33 integrally includes a valve portion 34 and a shaft portion 35.
  • the valve part 34 is formed in a substantially rectangular plate shape. On the lower surface 34a on the valve seat surface 15 side of the valve portion 34, annular ribs 34b and 34b having inner diameters that are the same as or slightly larger than the outer diameters of the annular member 31 and the disk member 32 are provided.
  • the valve part 34 rotates the ring member 31 and the disk member 32 in the circumferential direction between the valve seat surface 15 by arranging the ring member 31 and the disk member 32 inside the ribs 34b and 34b. Hold as possible. Further, a through hole 34 c is provided at a location corresponding to the inner edge of the annular member 31 in the valve portion 34.
  • the disc member 32 may be replaced with the annular member 31, and the annular member 31 and the disc member 32 are omitted, and the annular ribs 34b and 34b are provided at the first rotational position and the second rotational position.
  • the valve body 30 may be configured to overlap the annular portions 15a and 15a of the valve seat surface 15.
  • the annular member 31 and the disk member 32 may be formed integrally with the valve body 30.
  • the shaft portion 35 is formed in a hexagonal column shape, and is erected perpendicularly to the center of the upper surface 34d on the valve portion 34 opposite to the valve seat surface 15 side. Further, the valve body main body 33 is formed with a positioning hole 38 into which the positioning boss 18 is rotatably inserted so as to open at the center of the lower surface 34 a of the valve portion 34.
  • the positioning boss 18 may be provided in the valve body main body 33 and the positioning hole 38 may be provided in the valve main body 10.
  • the drive unit 40 includes a drive mechanism that combines a motor and a speed reducer (not shown), and a resin drive unit case 41 that houses the drive mechanism.
  • the drive unit case 41 is formed in a substantially rectangular parallelepiped box shape.
  • the drive unit case 41 is fixedly attached to the upper portion of the lid body 20.
  • the valve shaft 50 is formed in a cylindrical shape as a whole, and is arranged so as to be orthogonal to the valve seat surface 15.
  • the valve shaft 50 includes a D-cut portion 51, a serration portion 52, a supported portion 53, and a valve body attaching portion 54 in order from the upper end.
  • the D-cut portion 51 has a flat portion formed on a part of the outer peripheral surface of the cylinder, and is used for positioning the valve shaft 50 in the circumferential direction.
  • the serration unit 52 is formed in a gear shape (serration) to which the rotational driving force of the drive mechanism of the drive unit 40 is applied.
  • the supported portion 53 is formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the bearing portion 21. On the outer peripheral surface of the supported portion 53, groove portions 53a and 53a in which O-rings 57 and 57 are mounted are provided. The supported portion 53 is inserted into the bearing portion 21, and the gap with the bearing portion 21 is sealed by O-rings 57 and 57.
  • the valve body attaching portion 54 is provided at the lower end portion (one end portion) of the valve shaft 50 and is formed in a cylindrical shape having an outer diameter larger than the inner diameter of the bearing portion 21.
  • a shaft portion insertion hole 55 into which the shaft portion 35 of the valve body 30 is inserted is formed in the lower end surface of the valve body mounting portion 54.
  • the shaft portion insertion hole 55 is formed in a shape that is the same as or slightly larger than the cross-sectional shape (lateral cross-sectional shape) orthogonal to the axial direction (direction along the axis L) of the shaft portion 35. Therefore, the shaft portion 35 inserted into the shaft portion insertion hole 55 is movable in the axial direction.
  • the shaft portion insertion hole 55 is formed in a hexagonal shape, and the shaft portion 35 of the valve body 30 and the shaft portion insertion hole 55 are fitted to each other.
  • the body 30 is rotated.
  • the shaft portion insertion hole 55 may be formed in a shape in which the shaft portion 35 is inserted, the shaft portion 35 can move in the axial direction, and the valve body 30 rotates as the valve shaft 50 rotates.
  • an accommodation space 56 for accommodating the elastic member 60 is formed in the valve body 30 and the valve shaft 50.
  • the valve body attaching portion 54 is provided with a pressure equalizing hole 58 that allows the accommodation space 56 and the space inside the valve chamber to communicate with each other.
  • the pressure equalizing hole 58 may be provided in the valve body 30.
  • the elastic member 60 is a helical coil spring.
  • the elastic member 60 is disposed in the accommodation space 56 in a state compressed in the axial direction.
  • the elastic member 60 presses the valve body 30 against the valve seat surface 15 by a restoring force.
  • the elastic member 60 may be made of a rubber material or the like other than the coil spring.
  • the positioning boss 18, the bearing portion 21, the shaft portion 35 and the positioning hole 38 of the valve body 30, the valve shaft 50, and the elastic member 60 are arranged so that their respective axis centers coincide with the axis L.
  • the axis L coincides with the rotation axis of the valve body 30 and is orthogonal to the valve seat surface 15.
  • valve shaft 50 is rotated about the axis L by the rotational driving force of the drive mechanism of the drive unit 40, and the valve body 30 is rotated on the valve seat surface 15 as the valve shaft 50 rotates.
  • the valve shaft 50 is rotated about the axis L by the rotational driving force of the drive mechanism of the drive unit 40, and the valve body 30 is rotated on the valve seat surface 15 as the valve shaft 50 rotates.
  • the annular member 31 overlaps the annular portion 15 a surrounding the first port 16 of the valve seat surface 15, and the circular plate member 32 surrounds the second port 17 of the valve seat surface 15. It overlaps with the part 15a.
  • the valve chamber 14 communicates with the first outlet channel 12 via the through hole 34 c of the valve body 30, the annular member 31, and the first port 16. Further, the second port 17 is closed by the disc member 32, and the valve chamber 14 and the second outlet channel 13 are blocked.
  • valve body 30 In the second rotational position, the valve body 30 is overlapped with the annular portion 15 a surrounding the second port 17 of the valve seat surface 15 by the annular member 31, and the disc member 32 connects the first port 16 of the valve seat surface 15. It overlaps the surrounding annular part 15a.
  • the valve chamber 14 communicates with the second outlet channel 13 via the through hole 34 c of the valve body 30, the annular member 31, and the second port 17. Further, the first port 16 is closed by the disc member 32, and the valve chamber 14 and the first outlet channel 12 are blocked.
  • the valve body 30 is attached to the valve shaft 50 so as to be movable in the axial direction by inserting the shaft portion 35 into the shaft portion insertion hole 55 of the valve shaft 50.
  • the compressed elastic member 60 is disposed in the accommodating space 56 in the valve body 30 and the valve shaft 50, thereby pressing the valve body 30 against the valve seat surface 15. Thereby, the valve body 30 can be stably adhered to the valve seat surface 15.
  • the valve body 30 is movable in the axial direction to the valve body mounting portion 54 of the valve shaft 50 that is arranged orthogonal to the valve seat surface 15. Attached to.
  • An elastic member 60 compressed in the axial direction is provided between the valve body 30 and the valve shaft 50. Since the valve body 30 is pressed against the valve seat surface 15 by the restoring force of the elastic member 60, the sealing performance between the valve body 30 and the valve seat surface 15 can be stably secured. . Further, even when the valve body 30 is separated from the valve seat surface 15 due to the fluid pressure, it can be reliably returned to the original state by the restoring force of the elastic member. Sealability can be ensured reliably.
  • the elastic member 60 is disposed in the accommodating space 56 in the valve body 30 and the valve shaft 50. By doing so, since the elastic member 60 is surrounded by the valve body 30 and the valve shaft 50 and is not exposed to the outside, the influence of the fluid on the elastic member 60 is reduced, and the valve body 30 is attached to the valve seat surface 15. Can be pressed stably. Moreover, it can suppress that the elastic member 60 contacts with another member by the influence of a fluid.
  • valve shaft 50 is provided with a pressure equalizing hole 58 that allows the accommodation space 56 to communicate with the valve chamber 14 outside thereof. By doing so, the pressure difference between the accommodation space 56 and the outside thereof is eliminated, and the valve body 30 can move stably with respect to the valve shaft 50.
  • valve body 10 is provided with a positioning boss 18 coaxial with the rotational axis of the valve body 30, and the valve body 30 is provided with a positioning hole 38 into which the positioning boss 18 is rotatably inserted.
  • the valve body 30 can be arrange
  • valve seat surface 15 protrudes from the inner wall surface 10 c of the valve body 10.
  • valve seat surface 15 has annular portions 15a and 15a surrounding the first port 16 and the second port 17, and connecting portions 15b and 15b connecting the annular portions 15a and 15a.
  • the connecting portions 15b and 15b are arranged so as to be shifted inward with respect to a virtual regular circle VC passing through the centers O and O of the annular portions 15a and 15a.
  • the valve body 30 is in contact with the valve seat surface 15 and overlaps with the annular portions 15a and 15a at the first rotational position and the second rotational position, and the annular member 31, And a valve body main body 33 that holds the disc member 32 rotatably in the circumferential direction.
  • SYMBOLS 1 Flow path switching valve, 10 ... Valve body, 10a ... Peripheral wall part, 10b ... Bottom wall part, 10c ... Inner wall surface, 11 ... Inlet flow path, 12 ... 1st exit flow path, 13 ... 2nd exit flow path, DESCRIPTION OF SYMBOLS 14 ... Valve chamber, 15 ... Valve seat surface, 15a ... Annular part, 15b ... Connection part, 16 ... 1st port, 17 ... 2nd port, 18 ... Positioning boss, 20 ... Lid, 21 ... Bearing part, 30 ... Valve body, 31 ... annular member, 32 ... disc member, 33 ... valve body main body part, 34 ...
  • valve part 34a ... lower surface, 34b ... rib, 34c ... through hole, 34d ... upper surface, 35 ... shaft part, 38 ... Positioning hole, 40 ... Drive part, 41 ... Drive part case, 50 ... Valve shaft, 51 ... D cut part, 52 ... Serration part, 53 ... Supported part, 53a ... Groove part, 54 ... Valve body attaching part, 55 ... Shaft portion insertion hole, 56 ... accommodating space, 57 ... O-ring, 58 ... equal pressure hole, 60 ... elastic member, L ... axis, O ... po Door of the center, VC ... virtual circle, VO ... virtual ellipse

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)
  • Taps Or Cocks (AREA)
PCT/JP2019/019477 2018-06-04 2019-05-16 流路切換弁 Ceased WO2019235159A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980025970.8A CN112189108B (zh) 2018-06-04 2019-05-16 流路切换阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018106709A JP6945859B2 (ja) 2018-06-04 2018-06-04 流路切換弁
JP2018-106709 2018-06-04

Publications (1)

Publication Number Publication Date
WO2019235159A1 true WO2019235159A1 (ja) 2019-12-12

Family

ID=68770288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/019477 Ceased WO2019235159A1 (ja) 2018-06-04 2019-05-16 流路切換弁

Country Status (3)

Country Link
JP (1) JP6945859B2 (enExample)
CN (1) CN112189108B (enExample)
WO (1) WO2019235159A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7533334B2 (ja) * 2021-04-21 2024-08-14 株式会社デンソー バルブ装置
CN116575542B (zh) * 2023-07-13 2023-10-03 杭州老板电器股份有限公司 分配组件及集成水槽

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150233476A1 (en) * 2012-11-07 2015-08-20 Mack & Schneider Gmbh Valve Device
CN107606237A (zh) * 2016-07-12 2018-01-19 杭州三花研究院有限公司 流量控制装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3808899A1 (de) * 1988-03-17 1989-09-28 Voss Armaturen Schaltventil
JP2004197899A (ja) * 2002-12-20 2004-07-15 Aisin Seiki Co Ltd ダイヤフラム内蔵遮断弁、燃料電池システム
JP4119275B2 (ja) * 2003-02-18 2008-07-16 忠弘 大見 真空排気系用のダイヤフラム弁
JP4192141B2 (ja) * 2004-11-26 2008-12-03 株式会社ケーヒン ガス用遮断弁
US8157184B2 (en) * 2008-05-29 2012-04-17 Kabushiki Kaisha Saginomiya Seisakusho Expansion valve, heat pump type refrigeration cycle apparatus, and air handling unit
JP5907506B2 (ja) * 2013-03-22 2016-04-26 株式会社鷺宮製作所 ロータリー式弁装置
JP6510810B2 (ja) * 2014-12-26 2019-05-08 株式会社不二工機 流路切換弁
JP6625584B2 (ja) * 2017-05-12 2019-12-25 株式会社不二工機 流路切換弁

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150233476A1 (en) * 2012-11-07 2015-08-20 Mack & Schneider Gmbh Valve Device
CN107606237A (zh) * 2016-07-12 2018-01-19 杭州三花研究院有限公司 流量控制装置

Also Published As

Publication number Publication date
JP6945859B2 (ja) 2021-10-06
CN112189108B (zh) 2023-01-06
JP2019210991A (ja) 2019-12-12
CN112189108A (zh) 2021-01-05

Similar Documents

Publication Publication Date Title
JP6511427B2 (ja) 流路切換弁
US20190136989A1 (en) Flow path switching valve
US9115812B2 (en) Plug valve with a spring biased plug
US11255449B2 (en) Valve device
WO2017057062A1 (ja) 冷媒制御バルブ装置
WO2019235159A1 (ja) 流路切換弁
JP7163695B2 (ja) バルブ装置
JP2010261564A (ja) ロータリー弁及びその生産方法
JP6689118B2 (ja) 流路切換弁
JP7144956B2 (ja) ボールバルブ
JP6661433B2 (ja) 流路切換弁
JP7084042B2 (ja) パッキン及びロータリバルブ
JP7143707B2 (ja) バルブ装置
WO2024058030A1 (ja) バルブ装置
JP7093201B2 (ja) 流路切替バルブ
JP2017172651A (ja) 流路切換弁
JP7674726B2 (ja) ロータリバルブ
JP6955952B2 (ja) ボールバルブ
JP7058418B2 (ja) 流路切換弁
JP7036555B2 (ja) ボールバルブ
JP7549368B2 (ja) 流路切換弁
JP7549369B2 (ja) 流路切換弁
JP7701731B2 (ja) 止水栓
CN121206245A (zh) 流路切换阀
JP2020112259A (ja) 開閉弁

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19815664

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19815664

Country of ref document: EP

Kind code of ref document: A1