JP2013142280A - Faucet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device in which water release/water stop is switched reliably by input to an operation section regardless of a position of a water release head and further, a main valve element can be opened/closed reliably while improving portability or assemblability of the device per se.SOLUTION: A connection member 90 incorporates a pilot channel 98, a pilot valve seat 95 and a pilot valve element 94. The pilot channel 98 is communicated with a pressure release channel 43 in the state where the connection member 90 is connected to a main valve unit 40, and guides water flowing from the pressure release channel 43 to a channel inside of the connection member 90. The pilot valve seat 95 is provided in the pilot channel 98. The pilot valve element 94 is provided at the side of the other end 7b of a wire 7 and moved in accordance with forward/backward movement of the wire 7 to open or close the pilot valve seat 95. The wire 7 is disposed within a water release head, within a hose and within the connection member 90 from one end side of the wire 7 to the other end 7b side.

Description

  The present invention relates to a faucet device that opens and closes an on-off valve by an operation on an operation unit.

  A faucet device with a structure in which a flexible hose is connected to the water discharge head and the water discharge head is detachably attached to the support member so that the water discharge head can be pulled out and used by the user. Has been.

  Such a faucet device is provided with an operation unit (switching switch) for opening / closing an on-off valve to switch between water discharge and water stop. 2. Description of the Related Art Conventionally, an operation unit has been proposed that opens and closes an on-off valve provided below a counter through a wire by a pressing operation of an operation unit provided on a support member (see, for example, Patent Document 1).

  In addition, from the viewpoint of reliably transmitting the operation input at the operation unit to the on-off valve and switching between water discharge / stop water, for example, a tube is communicated from the operation unit to the back pressure chamber of the on-off valve to press the operation unit. There has also been proposed a faucet device that opens and closes an end of a tube by an operation, thereby changing the pressure in a back pressure chamber of the on-off valve (see, for example, Patent Document 2). However, such a faucet device using a tube is required to have a high pressure resistance, so that the structure and material are limited, and the device tends to be complicated and large.

  Other than the faucet device using the tube as described above, for example, a faucet device that converts an operation input at the operation unit into an electrical signal and transmits the electrical signal to the on-off valve is also conceivable. However, since an electric type requires a power source and a wiring actuator, the structure is likely to be complicated and the cost is likely to increase.

  Compared to the faucet device using these tubes and electrical signals, the faucet device that opens and closes the on-off valve using the wire as described above requires that the tube has high pressure resistance. Further, it is advantageous in that a power source for using an electric signal is not required.

JP 2006-88635 A JP 2001-95709 A

  For the faucet device, in addition to the above-described request for improving the operability of the water discharge head, there is also a request for improving the workability and transportability of the entire device. For example, in a faucet device provided in a counter such as a kitchen or vanity, it is common to open a hole in a part of the counter and supply the water discharge head above the counter through the hole from the bottom of the counter. is there. In such a case, if the entire device is to be installed from above with respect to the counter during construction, a large hole is made in the counter because the unit (main valve unit) including the main valve body is relatively large. Will have to. Moreover, when the main valve unit and a unit (water discharge unit) including a water discharge head, a hose, and the like are integrated, the apparatus becomes large and transportability deteriorates. Therefore, as a means of avoiding the opening of the counter to become large while taking into consideration the improvement of the transportability of the device, the faucet device is separated from such a main valve unit and the water discharge unit, A large main valve unit can be installed from the underside of the counter.

  However, considering that the opening / closing valve is opened / closed using a wire as described above, the wire is exposed when the main valve unit and the water discharge unit are separated as described above. There is a problem in terms. That is, when an operation part (changeover switch) is provided in the water discharge head itself that can be moved to a desired position by the user and an operation input to the operation part is transmitted to the on-off valve by a wire, a finished product is obtained. In this case, a part of the wire straddling between the main valve unit and the water discharge unit must be exposed from the separated main valve unit or water discharge unit. With such a structure, there is a possibility that an builder may touch the wire and apply an excessive force to the wire. If it does so, the setting at the time of manufacture, such as the amount of advance and retreat of the wire based on operation of an operation part (changeover switch), and the amount of movement of a pilot valve based on it, may change, and it may become a cause of water stop failure or insufficient flow. Arise. In addition, when installing a faucet device, it is difficult to improve the workability if the condition that such a deviation is not caused is imposed on all contractors having different skill levels.

  The present invention has been made in view of such a problem, and the purpose thereof is to improve the transportability by separating the main valve unit and the water discharge unit and to be usable by connecting the connection member. The faucet is easy to assemble, but it prevents the installer / user from touching the hose or tangling the wire to the hose to prevent the setting at the time of manufacturing from changing. It is to provide a faucet device.

  The present invention relates to a faucet device having a water discharge head that is detachable with respect to a support member fixed above a counter, wherein the faucet device communicates a primary side channel and a secondary side channel. A main valve body in which a valve seat and one side surface thereof abuts on or separates from the main valve seat and allows water to flow or stop in the main valve seat, and a pressure chamber is formed on the other side surface. And a pressure release flow path that communicates with the pressure chamber and allows the water in the pressure chamber to flow out, and is provided with a main valve unit provided below the counter, and a water discharge head provided at one end. The hose, the water discharge head, a changeover switch for switching water discharge and water stop from the water discharge head, water provided at the other end of the hose and connected to the main valve unit and passing through the main valve seat The flow path that leads to the inside of the hose A connecting member, one end of which is connected to the changeover switch, and a wire that advances and retreats as the changeover switch is operated, and has a water discharge unit that is connected to the main valve unit. The member communicates with the pressure release flow path of the main valve unit in a state where the connection member is connected to the main valve unit, and guides water flowing from the pressure release flow path to the main flow path inside the connection member. A pilot flow path, a pilot valve seat provided in the pilot flow path, a pilot valve body provided on the other end portion side of the wire, and opening or closing the pilot valve seat by moving in accordance with advancement or retraction of the wire; The wire is arranged in the water discharge head, in the hose, and in the connecting member from one end side to the other end side of the wire.

  According to the present invention, first, a changeover switch is provided in the water discharge head, and an opening / closing valve is opened and closed with a wire that moves forward and backward by the operation of the changeover switch, thereby performing an operation for switching between water discharge / water stop at the position of the water discharge head. It is possible to provide a highly convenient water faucet device.

  Further, according to the present invention, the connection member connected to the main valve unit incorporates a pilot valve body and the like, and the pressure release passage and the pilot passage communicate with each other in a state where the connection member is connected to the main valve unit. By comprising so, it becomes possible to arrange | position a wire in a water discharging head, a hose, and a connection member from one end part side to the multi-end part side, and it is trying for a builder not to touch a wire.

  Therefore, according to the present invention, the main valve unit and the water discharge unit can be separately provided to improve the transportability, but the structure can be easily used by connecting the connecting member, and can be assembled at the installation site. By realizing a faucet device, the construction workers are prevented from touching the hose, and the above-mentioned setting at the time of manufacture (the amount of advance / retreat of the wire based on the operation of the changeover switch and the pilot valve body based on the advance / retreat of the wire) It is possible to avoid changes in the movement amount. That is, it is an object of the present invention to provide a water faucet device that can reliably open and close the main valve body while improving the transportability and assembly of the water faucet device.

  In the water faucet device according to the present invention, it is preferable that the pilot valve body and the pilot valve seat be arranged in a radially outward direction in a cross section of the connecting member perpendicular to the wire advance / retreat direction. As described above, the connecting member is provided at the other end of the hose and connected to the main valve unit. If the pilot valve body and the pilot valve seat are built in the connecting member, It is possible that the width of the main flow path becomes narrow, the flow path resistance increases, and it becomes difficult to secure a desired flow rate. In this regard, according to the present invention, the pilot valve body and the pilot valve seat are biased in the radially outward direction of the connection member, so that the pilot valve body and the pilot valve seat are further occupied by the pilot flow path for leading water to them. The area can be suppressed. That is, according to the present invention, the main flow path is not narrowed while the pilot valve body or the like is built in the connection member, and the increase in flow path resistance can be suppressed and a desired flow rate can be secured. it can.

  In such a faucet device, the main valve unit is configured such that water from the secondary side flow path and the pressure release flow path is respectively connected to the main flow path and the pilot flow path of the connection member in a state where the connection member is connected to the main valve unit. It is preferable that the inlet end of the pilot channel faces the outlet end of the pressure release channel. When the water discharge head is routed in the faucet device, if the connection member receives a force through the hose and the position of the connection member with respect to the main valve unit changes, the water flowing out from the pressure release flow path smoothly flows into the pilot flow. There is a risk that the main valve body cannot be quickly opened and closed based on the operation of the changeover switch. In this regard, according to the present invention, by setting the inlet end of the pilot flow path in the pilot valve to face the outlet end of the pressure release flow path, water inside the pressure chamber can be quickly discharged. The main valve body can be quickly opened and closed based on the operation of the changeover switch.

  Further, in the faucet device, when the bent portion is formed in the secondary flow path and the connecting member is connected to the main valve unit, the pilot valve body and the pilot valve seat are biased toward the inner periphery of the bent portion. It is preferable. Looking at the flow of water in the bent part, the flow rate on the inner peripheral side is smaller than that on the outer peripheral side, so by biasing the pilot valve body and pilot valve seat closer to the inner periphery as in the present invention, The influence can be reduced.

  Further, the faucet device is provided with a fixing portion for fixing the position of the connecting member with respect to the main valve unit. When the connecting member is connected to the main valve unit, the fixing portion is an inlet of the pilot flow path. It is preferable that the position of the connection member is fixed at a position where the end faces the outlet end of the pressure release channel. When the water discharge head is routed in the faucet device, if the connection member receives a force through the hose and the position of the connection member with respect to the main valve unit changes, the water flowing out from the pressure release flow path smoothly flows into the pilot flow. There is a risk that the main valve body cannot be quickly opened and closed based on the operation of the changeover switch. In this regard, according to the present invention, since the fixed portion is fixed at a position where the inlet end of the pilot flow path faces the outlet end of the pressure release flow path, the main valve body is quickly opened and closed based on the operation of the changeover switch. Can be made.

  In the faucet device, when the connecting member is connected to the main valve unit, water flowing from the pressure release flow path to the pilot flow path and the secondary flow path between the water discharge unit and the main valve unit. It is preferable that a seal member for partitioning water flowing into the main flow path is provided. In the faucet device having the structure as described above, the two flow paths, the pilot flow path and the main flow path, are communicated by opening the pilot flow path. In the faucet device having such a structure, when the water discharge unit and the main valve unit are connected, even if sealing is performed so that water leakage does not occur between the water discharge unit and the main valve unit, the pressure release flow can be reduced. If the water from the passage flows into the main flow path without passing through the pilot flow path, the pilot valve body may not be closed securely and may cause a problem of poor water stoppage. In this regard, in the present invention, the water flowing into the main flow path and the water flowing into the pilot flow path are sealed together between the water discharge unit and the main valve unit, so that the water in the pressure release flow path passes through the pilot flow path. Without leaking to the main flow path, water tends to accumulate in the pilot flow path, and the main valve body can be easily closed. As a result, the main valve body can be reliably opened and closed while preventing a water stop failure with a simple configuration.

  Furthermore, in the faucet device, the length of the wire is such that the hose receives a tensile force before the wire when the water discharge head is removed from the support member in a state where the connection member is connected to the main valve unit. It is preferable that the length is set longer than the length of. When removing the water discharge head from the support member and handling it, if an excessive tensile force is applied to the wire, the connection part between the wire and the pilot valve body may be damaged in some cases, and the pilot valve can be accurately operated by operating the changeover switch. It is possible that the body cannot be moved. In this regard, according to the present invention, when the water discharge head is routed, the hose receives the tensile force applied to the wire instead, so that excessive tensile force is applied to the wire, and the pilot valve body is The main valve body can be reliably opened and closed by being moved reliably.

  According to the present invention, the main valve unit and the water discharge unit are separately provided to improve transportability, and the faucet is easy to assemble at the installation site and can be used by connecting the connection member. It is possible to prevent the person from touching the hose or tangling the wire to the hose, and to prevent the setting at the time of manufacture from changing.

1 is an overall view showing an embodiment of a faucet device according to the present invention. It is a figure which shows the whole water discharging unit which comprises a water faucet apparatus, and a part of main valve unit. It is sectional drawing which shows the structural example of the water faucet device at the time of water discharging head accommodation. It is sectional drawing of the water tap apparatus of the state which pulled out the water discharge head from the supporting member. It is sectional drawing of the water discharging head in a water stop state. It is sectional drawing of the water discharging head in a water discharging state. It is sectional drawing of a main valve unit, a pilot plug, etc. in a water stop state. It is sectional drawing of a main valve unit, a pilot plug, etc. in the water discharging state. It is sectional drawing of the main valve unit and connection member in the IX-IX line of FIG. It is sectional drawing of a main valve unit and a connection member in case a pilot valve body and a pilot valve seat are arrange | positioned near the center of a connection member.

  Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings.

  1 to 10 show an embodiment of a faucet device 1 according to the present invention. The faucet device 1 of this embodiment includes a support member 2, a water discharge head 3, a main valve body (open / close valve) 4, a hose 5, a changeover switch 6, a wire 7, and the like.

  The support member 2 detachably supports the water discharge head 3 of the faucet device 1. The support member 2 is attached to a pedestal 11 provided on the counter 8 (see FIG. 1). The pedestal 11 is provided with a handle lever 13 for adjusting the water discharge flow rate and the water discharge temperature. The support member 2 of this embodiment has an insertion portion 21 through which each of the hose 5 and the wire 7 is inserted (see FIG. 4 and the like).

  The counter 8 is used to represent all the places where the faucet device 1 can be installed, such as a water table or a table top. For example, in this embodiment, the case where the top plate portion on the back side of the kitchen sink 12 (the side far from the user) corresponds to the counter 8 is illustrated (see FIG. 1), but this is merely an example. In addition, a table-like portion around the bowl of the vanity can correspond to the counter 8 in this specification.

  The water discharge head 3 is detachably supported by the support member 2 and discharges water from the water discharge port 33. A flexible hose 5 is connected to the water discharge head 3, and a user pulls out the water discharge head 3 in a state supported (supported) by the support member 2. Water can be discharged at a position and angle. For example, the water discharge head 3 of the present embodiment includes a head main body 31, a head cover 32 that covers the head main body 31, and the like (see FIGS. 3 and 4). A rectifying member 34 for adjusting the flow of water discharge is attached to the water discharge port 33. A changeover switch 6 is provided on a part of the water discharge head 3 (for example, the upper end portion of the water discharge head 3 in the housed state).

  The main valve body 4 is a valve constituting a main valve unit 40 for opening or closing a flow path for supplying water to the water discharge head 3. In the present embodiment, the main valve body 4 is provided below the counter 8. (See FIG. 1). As will be described later, the main valve unit 40 opens and closes the main valve body 4 using a back pressure generated by a fluid (water) flow (see FIGS. 7 and 8), and a water supply pipe 15 and a hot water supply pipe. 16 and further connected to the flow path 50 of the hose 5 via the flow path 17 (see FIG. 1). In the present embodiment, a diaphragm valve is used as the main valve body 4. One side of the main valve body 4 abuts on a main valve seat 42, which will be described later, or is separated from the main valve seat 42 to allow water to flow or stop in the main valve seat 42. A chamber 44 is formed.

  The hose 5 is a flexible tubular member having a flow path 50 that guides water that has passed through the main valve body 4 to the water discharge head 3 (see FIG. 4 and the like). In addition to the hose 5, the water discharge unit 10 connected to the main valve unit 40 is configured by the changeover switch 6, the wire 7, and the pilot plug 90. When the water discharge head 3 is supported by the support member 2 (stored state), the hose 5 is housed in the support member 2 and the base 11 (see FIG. 3). The hose 5 of the present embodiment is connected to the head body 31 at one end 5a via a first hose joint 51, a second hose joint 52, a caulking member 53, and a flange member 54 (FIGS. 5 and 6). reference). In the middle of the hose 5, a fastener 18 is attached that contacts the back surface of the pedestal 11 and limits the pullable amount of the water discharge head 3 (see FIG. 1).

  The changeover switch 6 constitutes an operation input unit operated by the user in order to switch water discharge / water stop from the water discharge head 3. The changeover switch 6 is provided on a part of the water discharge head 3 (for example, the upper end portion of the water discharge head 3 in the housed state). For this reason, the user can perform an operation for switching between water discharge and water stop with a hand holding the water discharge head 3, which is highly convenient. In this embodiment, a switch provided with a thrust lock mechanism is used as such a changeover switch 6 (see FIGS. 3 and 4).

  The thrust lock mechanism 62 used for the changeover switch 6 is one end side of the advance / retreat path when the support shaft 61 of the changeover switch 6 is repeatedly advanced and retracted, as used in a drain plug device for a bathtub or a ballpoint pen. Then, the state in which the support shaft 61 is locked and the state in which this lock is released are then repeated alternately. When the changeover switch 6 and the thrust lock mechanism 62 of the present embodiment are pushed once from the water stoppage state (the state where water is not discharged from the water discharge port 33, see FIG. 5), the wire 7 is drawn by a predetermined amount. A water discharge state (a state in which water is discharged from the water discharge port 33) is set, and the thrust lock mechanism 62 is configured to lock in this water discharge state (see FIG. 6). Although the details of the thrust lock mechanism 62 itself will not be described here, if an outline of the configuration is shown as an example, both the remote operation method and the direct operation method such as direct push are basically used. A fixed tooth fixed to the support shaft 61, a rotating tooth connected in series with the fixed tooth and slidable in the axial direction, and a locking tooth provided in the mechanical box. The rotating tooth is rotated by engagement with the fixed tooth on one end side of the vertical movement of the support shaft 61, and the wire 7 is advanced and retracted by repeating engagement and disengagement with respect to the locking tooth for each rotation ( Maintain the state of feeding and pulling.

  The wire 7 advances and retreats with the operation of the changeover switch 6 and functions as an operation input transmission means for opening and closing the main valve body 4. In the present embodiment, a spiral metal inner wire inserted in the outer tube 71 so as to freely advance and retract is used as the wire 7 (see FIG. 3 and the like). One end portion 7a of the wire 7 is connected to the movable portion of the thrust lock mechanism 62 described above (see FIGS. 3 and 4). The other end 7b of the wire 7 is connected to a wire guide 93 of a pilot plug 90 that constitutes the main valve unit 40 (see FIGS. 7 and 8).

  Further, the wire 7 is configured such that the hose 5 receives a tensile force before the wire 7 when the water discharge head 3 is taken out from the support member 2. According to this, when the users handle the water discharge head 3, the hose 5 can receive the tensile force acting on the wire 7 instead, and thereby an excessive tensile force is applied to the wire 7. Can be suppressed. In such a faucet device 1, the pilot valve body 94 can be reliably moved and the main valve body 4 can be reliably opened and closed. On the other hand, when the water discharge head 3 is removed from the support member 2 and handled, if an excessive tensile force is applied to the wire 7, the connection portion between the wire 7 and the pilot valve element 94 may be damaged in some cases. Therefore, there is a possibility that the pilot valve element 94 cannot be accurately moved by the operation of the changeover switch 6. However, in the present embodiment, such a situation is avoided as described above. As a configuration for the hose 5 to receive the tensile force before the wire 7, for example, the length of the wire 7 is made longer than the length of the hose 5. Can include a configuration in which a tensile force is not applied. In short, the length of the wire 7 is such that the operation of the changeover switch 6 is reliably transmitted to the pilot valve body 94, and even if a tensile force acts on the hose 5, no tensile force acts on the wire 7. The length is preferred.

  The outer tube 71 is a cylindrical member for allowing the wire 7 to be inserted and retracted therein. The outer tube 71 is made of a resin material made of a tetrafluoroethylene material, for example, and has lateral flexibility. . One end of the outer tube 71 is connected to the head body 31 of the water discharge head 3 via a flange 71a that protrudes outward in a bowl shape (see FIGS. 5 and 6). The other end of the outer tube 71 is connected to the plug body 91 of the pilot plug 90 via an outer end 71b made of a metal material having a male screw on the outer peripheral surface (see FIGS. 7 and 8).

  The above-described main valve unit 40 includes an on-off valve (main valve body) 4, a lid body 41, a main valve seat 42, a pressure release passage 43, a cylindrical portion 49, a pilot passage 98, a pilot plug 90, and the like. Has been. A flow path body 14 having a flow path 17 connected to a water supply source is installed in the counter 8 described above, and the main valve body 4 is connected to the main valve seat 42 in the flow path body 14. It is installed so as to open and close the flow path 17 by approaching and separating (see FIGS. 7 and 8). When the main valve body 4 is opened away from the main valve seat 42, the primary flow path 17a and the secondary flow path 17b communicate with each other through the main valve seat 42. A space serving as a back pressure chamber 44 is formed on the back surface of the main valve body 4 so that the main valve body 4 approaches and separates from the main valve seat 42 according to the magnitude of the back pressure. . The pressure release flow path 43 and the pilot flow path 98 communicate the pilot chamber 97 in the pilot plug 90 and the back pressure chamber 44 with water flowing from the pressure release flow path 43 to the secondary side flow path 17b. Lead. In the pilot plug 90 of the present embodiment, a bent portion 17V is formed in the secondary channel 17b (see FIG. 7). Furthermore, the main valve unit 40 is configured such that water from the secondary side flow path 17b and the pressure release flow path 43 flows toward the main flow path 17c and the pilot flow path 98 of the pilot plug 90, respectively. (See FIG. 7 etc.)

  The pilot plug 90 is provided at the other end portion 5b of the hose 5, is attached to the end opening of the flow path body 14, and is connected to the main valve unit 40 described above (see FIGS. 7 and 8). ). The pilot plug 90 of this embodiment includes a plug body 91, a bias spring 92, a wire guide 93, a pilot valve body 94, a pilot valve seat 95, a pilot hole 96, a pilot flow path 98, and the like. The pilot valve element 94 is a valve that strokes the pilot chamber 97, and is in close contact with the pilot valve seat 95 when the water is stopped to close the pilot hole 96 (see FIG. 7). Further, the pilot valve element 94 is connected to a wire guide 93, and when the wire 7 is pulled or fed, the pilot valve body 94 strokes the same amount as the wire 7 or the wire guide 93. A bias spring 92 provided in the plug main body 91 urges the wire 7 back through the wire guide 93 (in a direction in which the pilot valve body 94 is moved away from the pilot hole 96).

  The pilot valve body 94 and the pilot valve seat 95 may be arranged in the vicinity of the center of the pilot plug 90 in the cross section of the pilot plug 90 perpendicular to the advancing and retreating direction of the wire 7 (see FIG. 10). The pilot valve body 94 and the pilot valve seat 95 of this embodiment are disposed near the inner periphery of the bent portion 17V of the secondary side flow path 17b, and are biased in the radially outward direction of the pilot plug 90 (FIG. 7). To FIG. 9). In such a faucet device 1, the area occupied by the pilot valve body 94 and the pilot valve seat 95 and the pilot flow path 98 for guiding water to them is suppressed. For this reason, it is easy to ensure a desired flow rate because the flow passage width is not reduced and the flow passage resistance can be prevented from increasing while the pilot valve body 94 and the like are built in the pilot plug 90. Further, when looking at the flow of water in the bent portion 17V, the flow velocity is smaller on the inner peripheral side than on the outer peripheral side. In this embodiment, the pilot valve body 94 and the pilot valve seat 95 are biased toward the inner periphery. Therefore, the influence on the flow can be reduced.

  Further, in the present embodiment, a protrusion 99 is provided on the outer periphery of the plug main body 91 of the pilot plug 90, and the protrusion 99 is fitted into the recess 46 formed in the cylindrical portion 49 of the main valve unit 40. It functions as a fixing portion for fixing the position of the pilot plug 90 with respect to the valve unit 40 in a constant circumferential direction (see FIG. 9). In such a faucet device 1, the pilot plug 90 is connected to the main valve unit 40 until the inlet end 98 a of the pilot flow path 98 faces the outlet end 43 a of the pressure release flow path 43 until the tip of the plug body 91 abuts. The position of the pilot plug 90 can be fixed by inserting it into the cylindrical portion 49, and by doing so, it becomes possible to quickly drain the water inside the pressure chamber 44 (see FIG. 7 and the like). Therefore, it is possible to quickly open and close the main valve body 4 based on the operation of the changeover switch 6 and to realize the faucet device 1 with good responsiveness. In the faucet device 1, for example, when the pilot plug 90 receives force through the hose 5 when the water discharge head 3 is routed and the position of the pilot plug 90 with respect to the main valve unit 40 changes, the pressure release flow Although the water flowing out from the passage 43 cannot smoothly flow into the pilot flow path 98 and the main valve body 4 cannot be quickly opened and closed based on the operation of the changeover switch 6, this embodiment can be used. This can be avoided. Note that the configuration described here is merely an example, and in addition to this, the unevenness is reversed (a concave portion is provided in the plug body 91, and a convex portion is provided on the inner peripheral surface of the cylindrical portion 49 of the main valve unit 40). Needless to say, it can be configured as follows.

  Further, the pilot plug 90 is provided with O-rings 81 to 83 for sealing between the pilot plug 90 and the main valve unit 40 (see FIG. 7 and the like). Among these O-rings 81 to 83, the first O-ring 81 disposed on the upstream side of the pilot flow path 98 is connected to the pilot flow from the pressure release flow path 43 between the water discharge unit 10 and the main valve unit 40. It functions as a seal member that partitions water flowing into the passage 98 and water flowing into the main passage 17c from the secondary side passage 17b. Further, the second O-ring 82 and the third O-ring 83 prevent water flowing from the pressure release flow path 43 to the pilot flow path 98 from leaking to the outside. In the faucet device 1, the water flowing into the main flow path 17 b and the water flowing into the pilot flow path 98 are sealed with each other by the sealing function by the O-rings 81 to 83. Does not pass through the pilot channel 98 and does not leak into the main channel 17b. For this reason, water tends to accumulate in the pilot flow path 98 and the main valve body 4 is easily closed. As a result, the main valve body 4 can be reliably opened and closed while preventing a water stop failure with a simple configuration. Become.

  Next, the operation of the main valve unit 40 accompanying the operation of the changeover switch 6 will be briefly described as follows. First, at the time of water stoppage, the pilot valve body 94 of the pilot plug 90 is seated on the pilot valve seat 95, and the pilot hole 96 is closed. The on-off valve (main valve body) 4 is seated on the main valve seat 42. Therefore, the water flow path 17 (including the flow paths 17a and 17b in the flow path body 14, the flow path (main flow path) 17c and the flow path 17d in the plug body 91) and the pilot flow path 98 are separated. It is in a state (see FIG. 7). At this time, due to the action of the back pressure in the back pressure chamber 44 (the action due to the differential pressure between the flow path 17 and the back pressure chamber 44), the main valve body 4 is held in the state of being seated on the main valve seat 42, and the water stop state is maintained. Kept.

  Here, when the changeover switch 6 of the water discharge head 3 (see FIG. 5) in the water stop state is pressed, the wire 7 is pulled in a predetermined amount and locked in that state by the thrust lock mechanism 62 (see FIG. 6). With this operation, the pilot valve element 94 that has been seated on the pilot valve seat 95 is pulled, the pilot hole 96 is opened, and the water flow path 17 and the pilot flow path 98 are in communication with each other. If it does so, the back pressure in the back pressure chamber 44 will decrease, the main valve body 4 will reverse | retreat, and it will be in a valve opening state. As a result, the water is discharged from the flow path 17 passing through the flow path main body 14 and the like through the flow path 50 in the hose 5 to the water discharge port 33 of the water discharge head 3. When the changeover switch 6 is operated once more in this water discharge state, the wire 7 is fed by a predetermined amount, the pilot hole 96 is closed, the main valve body 4 is closed and the water stop state is restored (see FIG. 5).

  As described above, the wire 7 transmits the operation input at the changeover switch 6 of the water discharge head 3 to the pilot valve body 94 constituting the main valve unit 40, and the main valve unit 94 moves through the movement of the pilot valve body 94. The valve body 4 is opened and closed. Here, in this embodiment, the wire 7 that opens and closes the open / close valve by operating the changeover switch 6 as described above extends along the hose 5 from the main valve body 4 to the changeover switch 6 of the water discharge head 3, It arrange | positions in the said hose 5 so that the reaction force when bent in the same direction with the hose 5 may be received from the hose 5 (refer FIG. 4 etc.). The features of such a configuration are as follows.

  That is, in the faucet device 1 such as the present embodiment in which the changeover switch 6 is provided in the water discharge head 3, when the user moves the water discharge head 3, an operation input to the changeover switch 6 is input to the main valve body 4 (main valve). There is a risk that the wire 7 transmitted to the unit 40) is bent or twisted, and the wire 7 cannot be smoothly advanced and retracted even if the changeover switch 6 is operated, and the main valve body 4 cannot be opened and closed as desired by the user. However, in the present embodiment, the wire 7 extends from the main valve body 4 to the changeover switch 6 along the hose 5 so as to receive the reaction force from the hose 5 when bent together with the hose 5 in the same direction. Yes.

  Furthermore, according to the faucet device 1 of the present embodiment, it is possible to realize a device that can reliably open and close the main valve body 4 while improving the transportability and assemblability of the device.

  That is, as described so far, in the faucet device 1 as in the present embodiment in which the main valve unit 40 and the water discharge unit 10 are separate units (see FIG. 2 and the like), each unit is transported to the site. After unpacking each unit, the water discharge unit 10 that tends to be relatively large is attached from above the counter 8, and the main valve unit 40 including the hose 5 is attached from below the counter 8. On the other hand, if the installer touches the wire 7 at the time of construction or at the time of use, or the wire 7 gets entangled with the hose 5 when the water discharge head 3 is routed, the wire 7 is impossible. If an excessive force is applied, the amount of advance / retreat of the wire 7 based on the operation of the change-over switch 6 or the pilot based on the advance / retreat of the wire 7 may be applied. And moving amount of the valve body 94, setting at the time of production will vary, which may cause water cutoff failure or insufficient flow rate or the like. In this regard, in the present embodiment, the pilot valve body 94 and the like are built in the pilot plug 90 connected to the main valve unit 40, and the pressure release passage 43 and the pilot are connected in a state where the pilot plug 90 is connected to the main valve unit 40. Since the flow path 98 communicates, the wire 7 can be arranged in the water discharge head 3, the hose 5, and the connecting member 90 from the one end portion 7 a side to the multi-end portion 7 b side. For this reason, the installers do not touch the wire 7 and the wire 7 does not get tangled around the hose 5. Therefore, according to the present embodiment, the main valve unit 40 and the water discharge unit 10 can be separately provided to improve transportability, but can be used by connecting the pilot plug 90 so that the water can be easily assembled. By realizing the plug device 1, it is possible to prevent the installers from touching the hose 5 or tangling the wire 7 to the hose 5, and avoid changing the setting at the time of manufacture.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention.

1: faucet device,
2: Support member 3: Water discharge head 4: Main valve body (open / close valve)
5: Hose 5a: One end portion 5b of hose: Other end portion 6 of hose: Changeover switch 7: Wire 7a: One end portion of wire 7: Other end portion of wire 8: Counter 10: Water discharge unit 17a: Primary side flow path 17b: Secondary side channel 17c: Main channel 17V (of connecting member 90): Bent portion 40 of the secondary side channel: Main valve unit 42: Main valve seat 43: Pressure release channel 43a: Pressure release channel Outlet end 44: back pressure chamber (pressure chamber)
50: Channel 81 (inside the hose) O-ring (seal member)
82: O-ring (seal member)
83: O-ring (seal member)
90: Pilot plug (connection member)
95: Pilot valve seat 98: Pilot flow path 98a: Pilot flow path inlet end 99: Projection (fixed part)

Claims (7)

In a faucet device having a water discharge head detachable from a support member fixed above a counter,
The faucet device
A main valve seat that communicates the primary side flow path and the secondary side flow path, and one side surface of the main valve seat abuts on or separates from the main valve seat, and water is passed or stopped in the main valve seat. And having a main valve body that forms a pressure chamber on the other side surface, and a pressure release channel that communicates with the pressure chamber and allows the water in the pressure chamber to flow out. A flexible hose provided with the water discharge head at one end thereof, a changeover switch provided in the water discharge head for switching between water discharge and water stop from the water discharge head, and the hose A connecting member that is connected to the main valve unit and guides the water that has passed through the main valve seat into the hose, and one end side of which is connected to the changeover switch. , Operation of the changeover switch A wire that advances and retreats along with the operation, and has a water discharge unit connected to the main valve unit,
The connecting member is
In a state where the connection member is connected to the main valve unit, a pilot flow that communicates with the pressure release flow path of the main valve unit and guides water flowing from the pressure release flow path to the flow path inside the connection member. A pilot valve body provided on the other end side of the wire, and opening or closing the pilot valve seat by moving in accordance with advancement or retraction of the wire When,
Built-in,
The water faucet device according to claim 1, wherein the wire is disposed in the water discharge head, the hose, and the connection member from one end side to the other end side of the wire.   The cross section of the connecting member perpendicular to the wire advance / retreat direction, the pilot valve body and the pilot valve seat are arranged to be deviated radially outward. Faucet device.   The main valve unit is configured such that water from the pressure release flow channel flows into the main flow channel and the pilot flow channel in a state where the connection member is connected to the main valve unit, and the pilot flow channel The faucet device according to claim 2, wherein an inlet end of the valve is opposed to an outlet end of the pressure release channel.   The pilot valve body and the pilot valve seat are biased toward the inner periphery of the bent portion in a state where the bent portion is formed in the secondary flow path and the connecting member is connected to the main valve unit. The faucet device according to claim 2, wherein   A fixing portion for fixing the position of the connecting member with respect to the main valve unit is provided, and in a state where the connecting member is connected to the main valve unit, the fixing portion has the inlet end of the pilot flow path The faucet device according to claim 3, wherein the position of the connection member is fixed at a position facing the outlet end of the pressure release flow path.   In a state where the connection member is connected to the main valve unit, water flowing from the pressure release flow path to the pilot flow path and the secondary flow path are interposed between the water discharge unit and the main valve unit. The faucet device according to claim 2, wherein a seal member that partitions water flowing into the main flow path is disposed.   In a state where the connecting member is connected to the main valve unit, the length of the wire is such that the hose receives a tensile force before the wire when the water discharge head is taken out from the support member. The faucet device according to claim 3, wherein the faucet device is set longer than the length of the hose.

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