JP3661987B2 - Electromagnetic water supply valve device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention is installed in a water supply piping line such as tap water (hereinafter referred to as a line) and opens and closes the main valve seat by interlocking the diaphragm valve by opening and closing the pilot orifice of the diaphragm valve with a plunger. This is related to the pilot type electromagnetic water supply valve.Can supply water to the outsideManual discharge operation,We can supply specified waterThe outlet A from which the water flows through the diaphragm valve flows out, and the branch port from which the water branches from the inlet chamber and does not pass through the diaphragm valve, or the diaphragm valve, so that the discharge (valve opening) operation by the diaphragm valve can be performed. A single or multiple pilot having an outlet B through which water that does not pass through, and a flow rate detecting device that is connected to the branch port and has an extension pipe connected to the branch outlet, are provided in the extension pipe or the outlet B. The present invention relates to an electromagnetic water supply valve device.
[0002]
[Prior art]
A single-unit pilot-type electromagnetic water supply valve (hereinafter referred to as a single-unit conventional valve) has an inflow port, an inflow conduit, an inflow chamber, a main valve seat, an outflow conduit, and an outflow port formed of a resin molded member (for example, A diaphragm valve (valve body) is installed in the valve body integrally molded with polypropylene resin) so as to close the main valve seat, and a resin molding member (so as to press the liquid-tight packing portion of the diaphragm valve against the valve body) For example, an elastic member (for example, silicon rubber) is used to hold a guide case (inside the back pressure chamber) made of nylon resin, and to close the pilot orifice of the diaphragm valve on the inner periphery of the guide case. ) Of a magnetic member (for example, stainless steel) to which a soft plunger seat (valve body) is fixed, and a coil spring (for example, stainless steel) that constantly urges and urges the plunger. Steel wire), and copper wire (eg, enameled wire) is wrapped around a cylindrical bobbin (eg, nylon resin) around the outer periphery of the guide case, and terminal strips (eg, Faston terminal # 250) or lead wires are wound around the guide case. There are known ones that are configured by connecting solenoids.
The configuration of the conventional multiple valves such as the double-unit or triple-unit combined with the single-unit conventional valve is also substantially the same, and details are as follows.
[0003]
In the outer periphery of the inflow port (single or multiple conventional valves), for example, screw joints such as PT3 / 4 for threaded joints and 20 for diameters in the industry. There are standardized threads (for example, 10 threads).
The inner peripheral part of the inlet (the pressure of the inflowing water is referred to as the primary pressure or the high pressure side) includes a metal filter of about 60 mesh for preventing foreign matter (eg insects, sand, iron scraps, etc.) from mixing, In many cases, a flow rate adjusting component or the like is incorporated so that the flow rate is substantially constant regardless of the (dynamic water pressure of the line).
[0004]
  There are exceptions, but in the flow adjustment parts when the predetermined water flow rate is less than 10L per minute,SpecialAs disclosed in Japanese Patent Publication Nos. 59-28796 and 62-18787, a hard cup of a resin molded member (for example, polyphenylene oxide resin, polyphenylene ether resin, polyacetal resin) on the upstream side, and downstream side And a soft annular disk of elastic member (for example, nitrile rubber) (hereinafter referred to as a flow controller, which is not formed with a conical inclined concave shape in which a substantially central through hole is chamfered). It is common to install a flow control component.
  When the primary pressure is supplied to the flow rate adjusting component at a low water pressure (for example, 0.05 to 0.10 MPa or less), the hard cup presses the flow controller slightly by water pressure. The flow channel (for example, V-groove, stepped groove, etc. in the case of peripheral installation, through-hole, etc. in the case of a substantially central portion) is ensured as it is, and is below a predetermined water flow rate. Water passes through.
  When the primary pressure is supplied at a medium water pressure (for example, about 0.10 to 0.50 MPa), the hard cup presses the flow controller more strongly than the low water pressure due to the water pressure, and is provided on the hard cup. In addition, the flow control bite into the flowing water passage, the flowing water passage is narrowed, and a predetermined amount of water or less water passes therethrough.
  Furthermore, when the primary pressure is supplied at a high water pressure (for example, 0.50 to 0.75 MPa or more), the hard cup almost bites into the flow control by the water pressure, and the flowing water passage is almost blocked, A predetermined amount of water or less will pass through.
[0005]
  There is an exception, but in the flow rate adjustment component when the predetermined water flow rate is from 10L / min to 35L / min,FIG. 1 of Japanese Utility Model Publication No. 8-1348As described in the above, the center through-hole (also referred to as an orifice, which is a flowing water pipe) on both end faces is bent due to a change in water pressure or fluid flow rate, and the cross-sectional area of the flowing water pipe changes. A flexible annular disc (hereinafter referred to as a flow sheet) of an elastic member (for example, nitrile rubber) in which a conical inclined concave shape is molded so as to be easy, and a resin molded member (for example, polypropylene resin, polyacetal) that may be omitted. It is common to install a flow rate adjusting component composed of a hard resin (resin) and a flow sheet support for preventing jumping out during reverse flow.
  As for the flow rate adjusting component, the flow sheet is bent and deformed by a change in the water pressure or the flow rate of the fluid, and the water flow conduit that is the substantially central through hole is narrowed, so that water having a predetermined water flow rate or less passes therethrough. It will be.
[0006]
In the case of a single-unit conventional valve, as described above, a flow rate adjusting component is generally provided at the inlet, but disclosed in, for example, Japanese Utility Model Laid-Open No. 56-136665, Registered Utility Model No. 3021488, and the like. As described above, a flow rate adjusting component may be disposed on the outlet side.
In the conventional multiple valve, for example, it is disclosed in Japanese Utility Model Publication No. 60-20862, Japanese Utility Model Application Laid-Open No. 2-39666, Japanese Patent Application Laid-Open No. 59-89877, Japanese Patent Publication No. 62-29073, and the like. In addition, when a flow control component such as a composite component is disposed at the inlet, and as disclosed in Registered Utility Model No. 3021488, etc., a single flow control component or the like is provided on each outlet side. In some cases, it may be provided.
[0007]
The inflow conduit (one in the case of a single type or multiple conventional valve) is a passage that guides the water at the inflow port to the inflow chamber, but facilitates cavitation in the inflow conduit (diaphragm). In order to ensure water hammer pressure to float the valve from the main valve seat), the pipe line is often lengthened. In addition, since the water flow becomes turbulent by the flow rate adjusting component, it is necessary to rectify once in order to make cavitation more likely to occur. Often).
[0008]
The inflow chamber (one for a single conventional valve, two for a dual conventional valve, and three for a triple conventional valve) is connected to the inner wall of the valve body. This is a chamber surrounded by the outer periphery of the outflow pipe and has the function of propagating water pressure to the diaphragm valve. Normally, cavitation generated in the inflow pipe is lost in the inflow chamber, but in order to improve the water stop performance when the flow rate is small, the inflow pipe should be prevented from cavitation. In many cases, the inner wall of the valve main body and the outer peripheral portion of the outflow pipe line are partitioned by partition walls (ribs) on both sides of the road near the outlet. A part of the inflow chamber partitioned by the two partition walls is called a small chamber.
[0009]
The main valve seat (one for a conventional single valve, two for a dual conventional valve, and three for a triple conventional valve) It is an end face part. In order to improve the water stop performance, the diaphragm valve has a shape that makes it easy to bite.
[0010]
There are three outlets (one for a single conventional valve, two for a dual conventional valve, and three for a triple conventional valve. The secondary pressure or low pressure side) is the outlet of the outflow line. On the outer periphery of the outlet, there is an annular projection (rib) or the like for preventing the water supply hose from coming off.
[0011]
Diaphragm valves (one for a conventional single valve, two for a double conventional valve, and three for a triple conventional valve) are, for example, elastic members. At least one small protrusion and one at least one small protrusion provided on one surface of a hard disk of a resin molded member (for example, polyacetal resin) in at least one small hole and one medium hole provided in a soft diaphragm (for example, silicon rubber) It is coupled by inserting a middle protrusion (for example, as disclosed in Registered Utility Model No. 3010806, etc., a plurality of small holes and small protrusions may be provided and inserted and coupled). The diaphragm is protruded on the outer periphery of the diaphragm valve, and includes a side orifice (also referred to as a small hole or a bleed hole) penetrating the inflow chamber and the back pressure chamber (inside the guide case). in The parts have protruding is middle protrusion, and a pilot orifice extending through the said back-pressure chamber and back pressure chamber outlet (the bore).
When the diaphragm valve is installed in the valve body so as to close the main valve seat, the side orifice is set to be approximately in the middle of the small chamber. This is because the cavitation generated in the inflow pipe is compressed very rapidly in the small chamber and disappears, causing a rapid pressure rise (water hammer pressure), and floating the diaphragm valve from the main valve seat. This is because it is estimated that the water in the inflow chamber is a driving force for flowing the water from the side orifice into the back pressure chamber due to a pressure difference (= water hammer pressure−back pressure chamber pressure).
[0012]
Now, a current is passed through the solenoid (one for a conventional single valve, two for a double conventional valve, and three for a triple conventional valve). (Normally, an AC voltage of 100V is applied), the plunger seat is closed to the pilot orifice by the plunger being sucked into the substantially central portion of the guide case installed inside the solenoid. Leave. Then, the water in the inflow chamber flows into the back pressure chamber from the side orifice, passes through the pilot orifice and the back pressure chamber outlet, and flows out to the outflow pipe and the outlet. When this passage is opened, the diaphragm valve slightly floats from the main valve seat due to the decrease in the pressure of the water in the back pressure chamber and the pressure of the water in the inflow chamber. Since the water flowing into the back pressure chamber from the side orifice contracts at one end at the side orifice, the pressure decreases and cavitation occurs. The water in the back pressure chamber has a sudden pressure increase (water hammer pressure) due to the disappearance of cavitation, and constantly presses the diaphragm valve floating from the main valve seat, while the outflow pipe, the flow It is estimated that it is flowing out to the exit. Since most of the water in the inflow chamber flows out to the main valve seat, the outflow pipe, and the outflow port, the hydrostatic pressure water in the line is lowered to the dynamic water pressure and becomes a flowing water state. The flow rate adjusting component incorporated in the inlet causes the water to shrink once, so that the pressure drops, cavitation occurs in the inflow conduit, disappears in the inflow chamber, and a sudden pressure rise (water It is presumed that the diaphragm valve is floated from the main valve seat. In addition, the pressure wave generated due to the sudden pressure rise is not propagated to the line side (or the amount of propagation is small) because the water flow flows out from the inflow port through the flow path of the outflow port. ). Therefore, during the valve opening operation of the conventional valve, the hydraulic pressure of the line (which decreases when the flow rate is high) is stable.
For reference, when the flow rate adjustment component is not installed, the pressure loss (= primary pressure-secondary pressure) of the conventional valve at the dynamic water pressure in the line is 0.01 MPa to 0.02 MPa, so cavitation disappears. After that, it can be seen that the pressure almost recovered to the primary pressure.
[0013]
Next, when the flow of current to the solenoid is stopped, the plunger is restored to the normal position by the coil spring, and the plunger seat closes the pilot orifice. Then, the water flowing into the back pressure chamber from the side orifice loses its place, but in the back pressure chamber as described above, a sudden pressure increase (water hammer pressure) occurs due to the disappearance of cavitation. Therefore, the diaphragm valve floating from the main valve seat is pressed against the main valve seat. Then, the main valve seat is suddenly closed by the diaphragm valve to stop water, and the water in the inflow chamber cannot flow into the back pressure chamber from the side orifice, and the valve closing operation of the conventional valve is completed. To do.
[0014]
[Problems to be solved by the invention]
  However, in conventional valves,For example, it is electronically controlled by household electrical equipment, etc., and the diaphragm valve always closes the main valve seat,The valve will not open unless current is supplied to the solenoid.From,If you want to supply water from the conventional valve installed in the line to the outside, you can not normally apply voltage to the solenoid manually.There is a problem that manual discharge operation is not possible.
[0015]
  Assuming that manual discharge operation was possible,For example, household appliancesAlthough it is better to give a discharge (water flow or flow rate) signal or the like to the electronic control circuit side that has been in charge of conventional valve opening / closing control, there are the following problems.
  When detecting the flow rate of water passing through the inlet of a single conventional valve, as disclosed in Japanese Patent Application Laid-Open No. 5-181539, Japanese Patent Application Laid-Open No. 7-289882, Japanese Patent No. 2692691, etc. A flow rate detection device (for example, an impeller type flow rate sensor, a thermal type flow rate sensor, or a flow switch) may be provided at the inflow port, but there is a diaphragm valve floating or the like, and the water discharge is mistaken for a poor water stoppage. When there is a state, there is a problem that it becomes an erroneous signal.
  In the conventional multiple valve, there is a problem that it is difficult to install (incorporate) the flow rate detecting device because the flow rate adjusting component is already provided on the inlet side.
[0016]
The present invention has been made in view of such problems of the prior art, and the object of the present invention is to allow manual discharge operation and discharge (valve opening) operation by a diaphragm valve. An outlet A through which water flows out through the diaphragm valve, a branch port through which water branches from the inflow chamber and does not pass through the diaphragm valve, or an outlet B through which water flows out of the diaphragm valve flows out, and the branch A single-type or multiple-type pilot valve type electromagnetic water supply valve device having an extension pipe connected to the opening and a flow rate detecting device installed in the extension pipe or the outlet B It is.
[0017]
[Means for Solving the Problems]
In order to achieve the above object, the pilot valve type electromagnetic water supply valve device of the present invention has the following characteristics.
Regardless of whether it is a single unit or multiple units, in a pilot valve type electromagnetic water supply valve device, an inflow port through which water flows in, an inflow conduit through which water is rectified, and an inflow that propagates the water pressure to the diaphragm valve Pilot valve type electromagnetic water supply in which a diaphragm valve is disposed in a valve body having a chamber, a main valve seat, and an outlet A through which water flows out through the diaphragm valve so as to close the main valve seat The valve is provided with a branch port through which water that branches from the inflow chamber and does not pass through the diaphragm valve flows out.
In a single pilot valve type electromagnetic water supply valve device, an inflow port through which water flows in, an inflow conduit through which water is rectified, an inflow chamber for propagating water pressure to the diaphragm valve, a main valve seat, A valve body having an outlet A through which water flows through the diaphragm valve flows out and a branch port through which water flows from the inflow chamber and does not flow through the diaphragm valve so as to close the main valve seat. A valve is provided, an extension pipe is connected to the branch port, and a flow rate detecting device is provided in the extension pipe.
In a multiple pilot valve type electromagnetic water supply valve device, an inflow port through which water flows in, an inflow conduit through which water is rectified, and a plurality of inflow chambers (propagating water pressure to the diaphragm valve) , A plurality of main valve seats, a plurality of outlets A (water flows out through the diaphragm valve) and a branch port branched from a certain inflow chamber (water that does not pass through the diaphragm valve flows out) A plurality of diaphragm valves are disposed in the valve body so as to close a plurality of main valve seats, an extension pipe is connected to the branch port, and a flow rate detection device is provided in the extension pipe. To do.
In addition, in a multiple pilot valve type electromagnetic water supply valve device, an inflow port through which water flows in, an inflow conduit through which water is rectified, and a plurality of inflows (propagating water pressure to the diaphragm valve) A valve body having a chamber, a plurality of main valve seats, and a plurality of outlets A or B, a diaphragm valve being disposed so as to close a certain main valve seat, and a diaphragm valve in the main valve seat And a flow rate detecting device is provided at the outlet B of the main valve seat where no diaphragm valve is provided.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the invention will be described with reference to the drawings.
  FIG. 1 is a right side longitudinal sectional view of a single-type pilot valve type electromagnetic water supply valve device 10 (hereinafter, this device 10) according to an embodiment of the present invention. FIG. 2 is a plan view of the valve body 17 of the apparatus 10. (However, since the joint 25 and the extension pipe 26 are rotatably connected to the branch port 22, the direction and the like are arbitrary.)
  In the present apparatus 10, the gap between the inlet 11, the inflow conduit 12, the inflow chamber 13, the main valve seat 15 provided on the end face of the outflow conduit 14, the inner wall 20 and the outer peripheral portion of the outflow conduit 14. A valve body having a small chamber 19 which is a part of the inflow chamber 13 partitioned by the two partition walls 18, an outlet A 16, and a branch port 22 provided from the inner wall 20. 17, a diaphragm valve 30 that can be displaced by the inflowing water pressure is installed so as to close the main valve seat 15, and the guide case 40 is pushed so as to press the liquid-tight packing portion 33 of the diaphragm valve 30 against the valve body 17. The plunger case 41 is fixed to the inner periphery of the guide case 40 so as to close the pilot orifice 31 of the diaphragm valve 30, and the coil spring that presses the plunger 42. 3 was housed, on the outer periphery of the guide case 40 is obtained by installing a solenoid 47 connected to the terminal piece 46 by winding copper wire 44, referred to as magnet wire on a cylindrical bobbin 45.
  A joint 25 (arbitrary) is rotatably connected to the branch port 22, an extension pipe 26 is connected to the joint 25, and an impeller-type flow sensor 23 (flow rate detection) is connected to the inner wall of the extension pipe 26. Device), and a magnetic detection device 24 (Hall IC, reed switch, etc.) with a lead wire 28 and a safety valve 27 (optional) provided on the outer wall of the extension pipe 26.
  The discharge (valve opening) operation and valve closing operation by the diaphragm valve 30 are the same as in the prior art.Depending on whether voltage is applied to solenoid 47It can be operated.
  For manual discharge operation, for example, an assembler who purchased the apparatus 10 such as an electric appliance for home use (for example, a fully automatic washing machine, a dishwasher, a local washing apparatus), etc.TotalSeparate manual on-off valves, etc. for outlet pipe 26(For example, tap faucet)It is necessary to operate the manually operated on-off valves and the like for the final consumer.
  By operating the manual on-off valves and the like, water can be supplied to the outside regardless of the discharge operation and the valve closing operation by the diaphragm valve 30.
[0019]
  FIG. 3 is a front longitudinal sectional view of a double pilot valve type electromagnetic water supply valve device 50 (hereinafter, this device 50) according to an embodiment of the present invention. FIG. 4 is a plan view of the valve body 57 of the device 50. FIG. 5 is a right side partial cross-sectional view of the apparatus 50. (However, since the joint 25 and the extension pipe 26 are rotatably connected to the branch port 62, the direction and the like are arbitrary.)
  In the present apparatus 50, the inlet 51(Same as the inlet 11 in FIG. 1 in the member position.)And an inflow conduit 52, an inflow chamber 53-1, an inflow chamber 53-2, a main valve seat 55-1 provided on the end surface of the outflow conduit 54-1, and an end surface of the outflow conduit 54-2. The main valve seat 55-2, the inner wall 60-1 and the outer peripheral portion of the outflow pipe line 54-1 are partitioned by a partition wall 58, and the inflow chamber 53-1 partitioned by the two partition walls 58 is provided. Is divided into a small chamber 59-1 which is a part of the inner wall 60-2 and the outer peripheral portion of the outflow pipe line 54-2 by a partition wall 58, and the inflow chamber 53- partitioned by the two partition walls 58. 2 to the valve body 57 having a small chamber 59-2, an outlet A56-1, an outlet A56-2, and a branch port 62 provided from the inner wall 60-2. -1 and 55-2 are respectively installed so that the diaphragm valve 30 can be displaced by the flowing water pressure. The guide case 40 is pressed so as to press the tight packing portion 33, and a plunger 42 having a plunger seat 41 fixed to the inner periphery of the guide case 40 so as to close the pilot orifice 31 of the diaphragm valve 30, A coil spring 43 that presses the plunger 42 is accommodated, and a solenoid 47 in which a copper wire 44 called a magnet wire is wound around a cylindrical bobbin 45 and connected to a terminal piece 46 on the outer periphery of the guide case 40. Is installed.
  A joint 25 (arbitrary) is rotatably connected to the branch port 62, an extension pipe 26 is connected to the joint 25, and an impeller-type flow sensor 23 is provided on the inner wall of the extension pipe 26. On the outer wall of the extension pipe 26, a magnetic detection device 24 from which a lead wire 28 is protruding and a safety valve 27 (optional) are provided.
  As one embodiment of the present invention, the branch port 62 is provided from the inner wall 60-2, but the branch port 62 may be provided from the inner wall 60-1.
  The discharge (valve opening) operation and valve closing operation by the diaphragm valve 30 are the same as in the prior art.Depending on whether voltage is applied to solenoid 47It can be operated.
  For manual discharge operation, the device 50 purchased, for example, an assembler of household electrical equipment, etc.TotalIt is necessary to provide a manual on-off valve or the like separately on the outlet pipe 26 and operate the manual on-off valve or the like for the final consumer.
  By operating the manual on-off valves and the like, water can be supplied to the outside regardless of the discharge operation and the valve closing operation by the diaphragm valve 30.
[0020]
  FIG. 6 is a plan view of a valve body 97 of a triple pilot valve type electromagnetic water supply valve device 90 (hereinafter, this device 90) according to an embodiment of the present invention. FIG. 7 is a plan view of the apparatus 90. FIG. 8 is a partial right side cross-sectional view of the apparatus 90.
  In the present apparatus 90, the inlet 91(Same as the inlet 11 in FIG. 1 in the member position.)And inflow conduit 92(In the member position, the same as the inflow conduit 12 in FIG. 1)And an inflow chamber 93-1, an inflow chamber 93-2, an inflow chamber 93-3, a main valve seat 95-1 provided on the end face of the outflow pipe 94-1, and an end face of the outflow pipe 94-2. A partition wall is provided between the main valve seat 95-2 provided, the main valve seat 95-3 provided on the end face of the outflow pipe 94-3, and the outer wall of the inner wall 100-1 and the outflow pipe 94-1. 98, partitioning between the small chamber 99-1 which is a part of the inflow chamber 93-1 partitioned by the two partition walls 98, and the inner wall 100-2 and the outer peripheral portion of the outflow pipe line 94-2. Partitioned by a wall 98, a small chamber 99-2 that is a part of the inflow chamber 93-2 partitioned by two partition walls 98, and the outer wall of the inner wall 100-3 and the outflow conduit 94-3. Partitioned by a partition wall 98, a small chamber 99-3 that is a part of the inflow chamber 93-3 partitioned by the two partition walls 98, an outlet A96-1, and an outlet A96-2 The valve body 97 having the outlet B 96-3 is provided with a diaphragm valve 30 that can be displaced by the inflowing water pressure so as to close the main valve seats 95-1 and 95-2. The guide case 40 is pressed so as to press the liquid-tight packing portion 33 of the valve 30, and a plunger seat 41 is fixed to the inner periphery of the guide case 40 so as to close the pilot orifice 31 of the diaphragm valve 30. The plunger 42 and the coil spring 43 that presses the plunger 42 are housed, and a copper wire 44 called a magnet wire is wound around a cylindrical bobbin 45 around the guide case 40 around the terminal piece 46. A connected solenoid 47 is installed.
  A lid case 35 was held around the main valve seat 95-3 so as to press the packing 34.
  An impeller type flow sensor 23 is provided on the inner wall of the outlet B96-3, and a magnetic detection device 24 with a lead wire 28 extending is provided on the outer wall of the outlet B96-3. Further, an extension pipe or the like may be connected to the outlet B96-3, and the impeller-type flow rate sensor 23 may be provided in the extension pipe or the like, or a lead wire 28 may be provided on the outer periphery of the extension pipe or the like. A magnetic detection device 24 may be provided.
  As an embodiment of the present invention, the main valve seat 95-3 is not provided with the diaphragm valve 30 for closing the main valve seat 95-3, and a flow rate detecting device is provided in the outlet B96-3. The diaphragm valve 30 may not be provided in the valve seat 95-1, and a flow rate detection device may be provided in the outlet B96-1, or the diaphragm valve 30 may not be provided in the main valve seat 95-2 and the outlet B96. -2 may be provided with a flow rate detecting device.
  The discharge (valve opening) operation and valve closing operation by the diaphragm valve 30 are the same as in the prior art.Depending on whether voltage is applied to solenoid 47It can be operated.
  For manual discharge operation, for example, an assembler of household electrical equipment, etc., who purchased this device 90, provided a separate manual on-off valve or the like at the outlet B96-3 to provide the final consumer, etc. It is necessary to operate the manual on-off valves and the like.
  By operating the manual on-off valves and the like, water can be supplied to the outside regardless of the discharge operation and the valve closing operation by the diaphragm valve 30.
[0021]
  As mentioned above, although various combinations etc. were described about the preferred embodiment of this invention, this invention is not limited to embodiment mentioned above, Many combinations and modification | change are within the range which does not deviate from the mind of invention. Of course, etc. can be given.
  For example, each inflow chamber of a multi-type pilot valve type electromagnetic water supply valve device such as a double type or a triple type (one in the case of a single type, two in the case of a double type, and 3 in the same manner) In the case of the continuous type, there are three)), each of which may be provided with a branch port or an outlet B (a diaphragm valve is not provided on the main valve seat).
  Further, a branch port may be provided in the inflow chamber of a valve body such as a direct acting valve type electromagnetic water supply valve, or the outlet B may be provided.
[0022]
【The invention's effect】
  In the single or multiple pilot valve type electromagnetic water supply valve device of the present invention, manual discharge operation and discharge (valve opening) operation by a diaphragm valve can be performed, and discharge accompanying manual discharge operation. There is an effect that a (water flow or flow rate) signal can be output.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a right side vertical sectional view of a single pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 2 is a plan view of a valve main body of a single pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 3 is a front longitudinal sectional view of a dual pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 4 is a plan view of a valve main body of a double pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 5 is a right side partial cross-sectional view of a double pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 6 is a plan view of a valve body of a triple pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 7 is a plan view of a triple pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
FIG. 8 is a right side partial cross-sectional view of a triple pilot valve type electromagnetic water supply valve device according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... This apparatus, 11 ... Inlet, 12 ... Inflow line, 13 ... Inflow chamber, 14 ... Outflow line, 15 ... Main valve seat, 16 ... Outlet, 17 ... Valve body, 18 ... Partition wall, 19 ... Small chamber, 20 ... inner wall, 22 ... branch port, 23 ... impeller-type flow sensor, 24 ... magnetic detection device, 25 ... coupling, 26 ... extension pipe, 27 ... safety valve, 28 ... lead wire, 30 ... diaphragm valve, 31 ... Pilot orifice, 33 ... Liquid packing part, 34 ... Packing, 35 ... Lid case, 40 ... Guide case, 41 ... Plunger sheet, 42 ... Plunger, 43 ... Coil spring, 44 ... Copper wire, 45 ... Cylindric bobbin , 46 ... Terminal piece, 47 ... Solenoid

Claims (2)

  Inflow port through which water flows in, an inflow conduit through which water is rectified, a plurality of inflow chambers (which propagate the water pressure to the diaphragm valve), a plurality of main valve seats, and a plurality (via the diaphragm valve) A plurality of main valve seats are closed to a valve body having an outlet A from which water flows out) and a branch port branched from a certain inflow chamber (water that does not pass through the diaphragm valve flows out). In a multiple pilot valve type electromagnetic water supply valve provided with a diaphragm valve, an extended pipe is connected to the branch port, and a flow rate detecting device is provided in the extended pipe. Type pilot valve type electromagnetic water supply valve device.   An inflow port through which water flows, an inflow conduit through which water is rectified, a plurality of inflow chambers (which propagate the water pressure to the diaphragm valve), a plurality of main valve seats, and a plurality of outflow ports A or B A multi-pilot pilot valve system that combines a valve body having a diaphragm valve so as to close a certain main valve seat with a valve body having no diaphragm valve in the main valve seat. In the electromagnetic water supply valve, a multiple pilot valve type electromagnetic water supply valve device, wherein a flow rate detecting device is provided in the outlet B of the main valve seat where no diaphragm valve is provided.

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