JP2009256946A - Faucet device and drain system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a faucet device high in merchantablenss by avoiding the leakage of water above a spindle (upper side) even if a seal member is age deteriorated, in a faucet device used in an anti-freezing faucet post etc., and a drain system using the faucet device. <P>SOLUTION: Openings 38a and 38b of an external through-passage 37 are positioned inside (below) an annular packing member 7. This prevents water flowing to the outside from leaking to the outside (upper side) of an operating spindle 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a faucet device used for, for example, an antifreeze faucet column for preventing water from freezing and a drainage system using the faucet device.

  Conventionally, in cold districts and the like, it is known to use a so-called antifreeze faucet column in order to prevent water from freezing. The antifreeze faucet column prevents water from freezing by discharging water in a water supply (water channel) that introduces water into the faucet device when the faucet device is not used.

An example of the antifreeze faucet column will be described with reference to the schematic diagram shown in FIG.
A faucet column body 100 installed so as to extend in the vertical direction with respect to the ground G is provided with a faucet device (curan) 101, and a water channel 102 provided in the faucet column body 100 is normally provided. The water R guided by is discharged from the faucet device 101.
An operation knob 104 for switching the switching valve 103 provided in the middle of the water channel 102 is provided at the top of the faucet column main body 100. When the switching valve 103 is switched by the operation knob 104, the water channel The water R ′ of 102 is dammed halfway, and the water R ′ of the water channel 102 in the faucet column main body 100 is discharged from the discharge channel 102 ′ to the outside. Including underground).
At this time, it is known that outside air is introduced into the water channel 102 by opening the operation handle of the faucet device 101.

Incidentally, in Patent Document 1 below, in order to discharge water remaining in the faucet device to the outside, a spindle (plug bar) for fixing the operation handle is provided with an intake hole extending in the axial direction. What introduced outside air is disclosed.
Japanese Utility Model Publication No. 49-110327

By the way, as described above, when outside air is introduced into the water channel 102 by opening the operation handle of the faucet device 101, if the operation handle is opened, the water in the water channel is not discharged. There is a risk of water freezes.
Therefore, for example, it is conceivable to provide the faucet device 101 with an intake valve 105 that automatically introduces outside air into the water channel 102 to smoothly discharge the water R ′ to the outside.

Here, with reference to FIG. 6, the detailed structure of the water faucet device when an intake valve is provided by forming an intake hole for introducing outside air into the spindle will be described.
In the faucet device 101, a faucet valve 114 integrated with a spindle 113 is provided between an upstream side passage portion 111 and a downstream side passage portion 112 provided in the faucet body 110. The spindle 113 is provided with intake holes 115 and 116 extending in the axial direction communicating with the upstream passage portion 111, and an intake piston 117 and an intake plate 118 serving as intake valves are provided inside the intake holes 115 and 116. Conceivable.

  When water on the upstream side of the faucet device 101 is discharged to the outside by a switching valve (not shown) (103 in FIG. 5), negative pressure is generated in the upstream passage portion 111, and therefore the intake piston of the intake valve 117 and the intake plate 118 are drawn inward (downward), and outside air is automatically introduced from the intake hole 116 of the spindle 113 into the upstream passage portion 111.

  The opening 119 of the intake hole 116 of the spindle 113 is set on the outer side (upper side) of the seal member (packing) 120 provided at an intermediate position of the spindle 113 so that outside air can be introduced as easily as possible. Can be considered.

However, if the opening 119 of the intake hole 116 of the spindle 113 is set on the outer side of the seal member 120 as described above, the following problem may occur.
That is, when the O-ring 121 of the intake piston 117 becomes unable to maintain the sealing performance due to aging, or when the intake piston 117 becomes difficult to move upward due to dust bites, the upstream passage portion Even when the intake piston 117 moves outward (upward) when water is introduced into the high pressure 111, water blows out from the O-ring 121, and the opening 119 of the intake hole 116 of the spindle 113. As a result, the water leaks from the spindle 113, and the water leak occurs on the outer side (upper side) of the spindle 113.

  Therefore, the present invention prevents a water leak from occurring on the outer side (upper side) of the spindle in a faucet device used for an antifreeze faucet column or the like even when the seal member or the like has deteriorated over time. It is an object of the present invention to provide a faucet device that can enhance the merchantability and a drainage system using the faucet device.

  The present invention is a faucet device provided on the upstream side with a switching valve capable of discharging water to the outside, and the faucet device includes a faucet valve installed between the upstream water channel and the downstream water channel, An operation handle that opens and closes the faucet valve; and a shaft member that is provided between the operation handle and the faucet valve and transmits an operation force from the operation handle to the faucet valve by moving in an axial direction. An intake hole formed in the shaft member so as to extend in the axial direction and communicating with the upstream water channel and the outside; and installed in the intake hole to discharge water from the upstream water channel to the outside When the faucet valve is closed, the external opening of the intake hole is connected to the shaft member when the faucet valve is closed. It is set so as to be located on the inner side of the sealing member that seals at an intermediate position of

According to this configuration, when the faucet valve is closed, the outer opening of the shaft member is located on the inner side of the seal member, so that the O-ring or the like deteriorates over time, so that a high pressure (positive pressure) is generated from the upstream water channel. Even if water leaks from the opening on the outer side of the shaft member at the time of the action, it is sealed by the sealing member located on the outer side.
For this reason, even if water leaks from the outside opening of the shaft member, water leakage from the outer side of the shaft member can be prevented.

  The water leaking from the outer opening of the shaft member flows inward of the shaft member and flows out of the faucet outlet into the sink through the downstream water channel. Unlike the case where water leaks from the side, water does not scatter greatly to the outside, so the merchantability of the faucet device is not deteriorated.

As an embodiment of the present invention, even when the faucet valve is opened, the outside opening of the intake hole is set to be located on the inner side of the seal member.
According to this configuration, even when the faucet valve is opened, the outer opening of the shaft member is located on the inner side of the seal member, and therefore, even when the faucet valve is opened, the leakage from the outer opening of the shaft member. Water is sealed by a seal member located on the outer side.
Therefore, it is possible to reliably prevent water leakage from the outer side of the shaft member regardless of whether the faucet valve is closed or opened.

As one embodiment of the present invention, external openings of the intake holes are formed in two places on the side peripheral surface of the shaft member at intervals of about 180 degrees.
According to this configuration, the opening on the outer side of the shaft member is formed at two positions on the side peripheral surface of the shaft member at intervals of about 180 degrees, so that both openings can be used even when water leaks from the outer opening. Therefore, the shaft member does not fluctuate in the radial direction.
For this reason, even if water leaks from the outside opening of the shaft member, the shaft member does not fluctuate in the radial direction, and its position is maintained, so that the sealing performance of the seal member does not change, and the Seal performance can be maintained.
Therefore, the water leak from the outer side of a shaft member can be prevented more reliably.

  Further, the present invention is provided so as to branch into an upstream water channel upstream of the water faucet device, and discharges water in the upstream water channel to the discharge channel for discharging water to the outside. A drainage system comprising: a switching valve that generates a negative pressure with the faucet device; and an operation member that switches the switching valve when water is discharged, and drains water using the faucet device. is there.

  According to this structure, the merchantability of the drainage system can be enhanced by using the faucet device having a high merchantability as described above.

According to this invention, since the seal member is located on the outer side, water leakage from the outer side of the shaft member can be prevented even if water leaks from the outer opening of the shaft member.
Therefore, in the faucet device used for the antifreeze faucet column etc., even if the seal member etc. has deteriorated over time, the water leakage does not occur on the outer side (upper side) of the spindle, and the merchantability is improved. Can be increased.

  Hereinafter, embodiments of the faucet device of the present invention will be described in detail with reference to the drawings. 1 is an overall cross-sectional view of the faucet device of this embodiment, FIG. 2 is a detailed cross-sectional view of the main part of the faucet device when the intake valve is closed, and FIG. 3 is a detailed cross-sectional view of the main part of the faucet device when the intake valve is opened. FIG. 4 is a detailed cross-sectional view of the main part of the faucet device when the O-ring has deteriorated over time.

  As shown in FIG. 1, the faucet device of this embodiment has a metal faucet body 1 formed by casting or the like, an operation handle 2 operated by an operator, and is fastened and fixed to the operation handle 2. An operation spindle 3 to be assembled to the faucet body 1 is provided.

  And, on the inner side (lower side in the drawing) of the operation spindle 3, a valve packing 4 as a faucet valve fitted and fixed, and an outer side (upper side in the drawing) of the valve packing 4, An intake piston 5 and an intake plate 6 serving as an intake valve for switching between outside air introduction and outside air blocking are provided, and an annular position for sealing the inner side and the outer side of the operation spindle 3 is provided at an intermediate position of the operation spindle 3. And a packing member 7.

  A packing presser 8 for fixing the packing member 7 to the faucet body 1 is provided on the outer side of the annular packing member 7, and a donut plate-shaped packing is provided on the inner side of the packing member 7. A receptacle 9 is provided.

  Further, a bent cylindrical tip pipe member 10 is rotatably connected and fixed to a downstream side (right side in the drawing) of the faucet body 1 via a pipe nut 11.

Among these, the faucet body 1 described above is configured by a substantially T-shaped cylindrical member, and an upstream side passage portion 21 and a downstream side passage portion 22 are formed therein, and both the passage portions 21, 21, A partition wall 23 extending in the horizontal direction is formed between the two. The partition wall 23 is provided with a communication hole 24 penetrating in the vertical direction.
In addition, a fastening screw portion 25 and a fixing flange portion 26 are formed on the upstream side (left side in the drawing) of the faucet body 1 in order to fasten and fix to the antifreeze faucet column (not shown in FIG. 1). Yes.

  The lower surface 21a of the upstream-side passage portion 21 is formed with an inclination gradient α (for example, α = 3 °) with the upstream side slightly inclined downward. By setting the inclination gradient α in this way, when the upstream water is discharged to the outside through the antifreeze faucet column, the water in the upstream passage portion 21 can also be discharged to the outside.

  Although not shown in detail, the above-described operation handle 2 is formed of a metal handle member having wings 2a radially extending in three directions. The operation handle 2 is fastened and fixed to the operation spindle 3 by fastening bolts B extending in the axial direction (vertical direction). By rotating the operation handle 2 in the circumferential direction, the operation spindle 3 can be moved in the axial direction.

  As shown in FIG. 2, the operation spindle 3 described above includes an outer-side small-diameter shaft portion 31 and an inner-side large-diameter shaft portion 32. An external screw 33 that is screwed into an internal screw 13 formed on the inner surface of the upper portion 12 of the faucet body 1 is formed. The operation spindle 3 is moved in the axial direction by rotating the operation spindle 3 in the circumferential direction along the outer screw 33.

  The operation spindle 3 is provided with an intake hole 34 extending in the axial direction. The intake hole 34 is formed in a substantially cylindrical shape so that the outer side (upper side) 34 a accommodates the intake piston 5 and the like, and the inner side (lower side) 34 b is widened so that the valve packing 4 is fitted therein. It is formed in a substantially trapezoidal cylindrical shape.

  The valve packing 4 described above is formed of a substantially trapezoidal cylindrical rubber member having a divergent shape so as to be fitted inward of the intake hole 34. The valve packing 4 has a through hole 41 extending in the axial direction at the center.

  The valve packing 4 moves in the axial direction in conjunction with the operation spindle 3. Then, by bringing the valve packing 4 into contact with the partition wall portion 23 so as to block the communication hole 24, the upstream-side passage portion 21 and the downstream-side passage portion 22 are closed (see FIG. 2), and the partition wall portion. By separating from 23, the upstream channel | path part 21 and the downstream channel | path part 22 are connected (refer FIG. 1), and it is functioning as a faucet valve.

  The aforementioned intake plate 6 is formed of a donut plate-like metal plate located on the outer side of the valve packing 4. The intake plate 6 is elastically sandwiched between the inner peripheral step 35 of the operation spindle 3 and the valve packing 4. And it is comprised so that the pressure change in the upstream channel | path part 21 may be received through the through-hole 41 of this valve packing 4. As shown in FIG.

  The aforementioned intake piston 5 is made of a substantially weight-shaped metal member located on the outer side of the intake plate 6. Inside the intake piston 5, a vertical hole 51 that opens inward (downward) and a horizontal through hole 52 that communicates with the tip of the vertical hole 51 are formed. The vertical hole 51 and the horizontal through hole 52 function as an intake passage for taking in outside air.

A rubber O-ring 54 is attached to the outer inclined surface 53 of the intake piston 5. The O-ring 54 comes into contact with the inner peripheral inclined surface 36 when the intake piston 5 is pressed against the inner peripheral inclined surface 36 of the operation spindle 3 (when the intake piston 5 is pressed outward). The inner side is sealed.
That is, in a state where the upstream passage portion 21 is filled with water and pressure is applied (the state shown in FIG. 2), the intake piston 5 is pressed outward (upward), so that the O-ring 54 is It is in contact with the inclined surface 36 to prevent water leakage to the outside.

  A tip space portion 34c of the suction hole is formed above the suction piston 5, and this tip space portion 34c communicates with the outside through an external through passage 37 that penetrates in the radial direction of the operation spindle 3. Yes. The external through passage 37 has two openings 38 a and 38 b that are opened at intervals of 180 degrees on the side peripheral surface of the operation spindle 3.

The openings 38a and 38b of the external through passage 37 are located on the inner side (lower side) than the annular packing member 7 described above when the valve packing 4 is in the closed position (position in FIG. 2). It is set as follows.
As described above, even if the openings 38 a and 38 b are set on the inner side of the packing member 7, the outer peripheral space 39 remains between the inner screw 13 of the faucet body 1 and the outer screw 33 of the operation spindle 3. Since it communicates with the downstream passage portion 22 through the gap, it is possible to take in outside air.

  Next, the operating state of the intake valve (5, 6) of the water faucet device configured as described above will be described.

As shown in FIG. 2, when the upstream side passage portion 21 is normally filled with water, high pressure (positive pressure) acts on the intake piston 5 and the intake plate 6 of the faucet device. It is pressed to the side (upper side). For this reason, the O-ring 54 of the intake piston 5 is in contact with the inner peripheral inclined surface 36 to prevent water leakage from the operation spindle 3.
Therefore, in normal times, no water leaks from the operation spindle 3.

On the other hand, as shown in FIG. 3, the intake piston 5 and the intake plate of the faucet device are drained when water is discharged from the upstream passage portion 21 by the antifreeze faucet column switching valve (see FIG. 5). 6 is pulled inward (downward) because negative pressure acts. For this reason, the O-ring 54 of the intake piston 5 is separated from the inner peripheral inclined surface 36 and forms a ventilation space w therebetween. Therefore, at the time of drainage, air can be sucked from the outside, and drainage can be performed smoothly.
Thus, in this faucet device, the drainage effect of the antifreeze faucet column is enhanced while ensuring the function as the faucet device.

  By the way, when the O-ring 54 of this faucet device has deteriorated over time, the state shown in FIG. 4 is obtained. That is, when the O-ring 54 'deteriorates with age, the elastic force of the O-ring 54' decreases, and the cross-sectional shape changes to an elliptical shape or the like.

  For this reason, even when the upstream side passage portion 21 is filled with water, the O-ring 54 ′ of the intake piston 5 does not come into contact with the inner peripheral inclined surface 36 and a gap w ′ is generated. Become. Then, the water in the upstream passage portion 21 flows out from the gap into the tip space portion 34c of the intake hole 34 and flows out of the operation spindle 3 through the external through passage 37 (see arrow).

  However, in this embodiment, the openings 38a and 38b of the external through-passage 37 are set so as to be located on the inner side (lower side) than the annular packing member 7, so There is no leakage to the outside (upper side).

  In this way, since water does not leak from the outside of the operation spindle 3, the water does not scatter greatly to the outside, so that the operator or the like can be prevented from being strongly aware of the water leak.

  The water that has flowed out flows between the inner screw 13 of the faucet body 1 and the outer screw 33 of the operation spindle 3 to the downstream passage portion 22 and drops into a sink (not shown). Become.

  Next, the effect of this embodiment is demonstrated.

In this embodiment, when the valve packing 4 is in the closed position (the position shown in FIG. 2), the openings 38 a and 38 b of the external through passage 37 of the operation spindle 3 are set so as to be located on the inner side of the packing member 7. is doing.
As a result, when the O-ring 54 deteriorates over time and a high pressure (positive pressure) is applied from the upstream side passage portion 21 or when it becomes difficult for the intake piston 5 to move upward due to dust, the operation spindle 3 Even if water leaks from the openings 38a, 38b of the external through-passage 37, it is sealed by the packing member 7 located on the outer side.
For this reason, even if water leaks from the openings 38a and 38b of the external through passage 37 of the operation spindle 3, water leakage from the outer side of the operation spindle 3 can be prevented.
Therefore, in the faucet device used for the antifreeze faucet column or the like, even when the O-ring 54 is aged or dusty, water leakage does not occur on the outer side (upper side) of the operation spindle 3. Productivity can be improved.

Further, in this embodiment, even when the valve packing 4 is in the open position (position in FIG. 1), the openings 38 a and 38 b of the external through path of the operation spindle 3 are positioned inward from the packing member 7. It is set (see FIG. 1).
As a result, even when the valve packing 4 is opened, the water leaking from the openings 38a, 38b of the external through passage 37 of the operation spindle 3 is sealed by the packing member 7 located on the outer side.
Therefore, water leakage from the outer side of the operation spindle 3 can be reliably prevented even when the valve packing 4 is opened.

In this embodiment, the openings 38 a and 38 b of the external through passage 37 of the operation spindle 3 are formed at two positions on the side peripheral surface of the operation spindle 3 at intervals of 180 degrees.
As a result, even when water leaks from the openings 38a and 38b of the external through passage 37 of the operation spindle 3, the discharge pressure from both the openings 38a and 38b is offset, so that the operation spindle 3 varies in the radial direction. There is nothing.
For this reason, even if water leaks from the openings 38a and 38b of the external through passage 37 of the operation spindle 3, the operation spindle 3 does not fluctuate in the radial direction and the position thereof is maintained. The sealing performance can be reliably maintained without changing.
Therefore, water leakage from the outer side of the operation spindle 3 can be prevented more reliably.

Further, the faucet device of this embodiment may be used for an antifreeze faucet column as shown in FIG. That is, a drainage channel 102 ′ is provided so as to branch in the middle of the water channel 102 located upstream of the water faucet device (corresponding to 100), and the water in the water channel 102 is made outside using the drainage channel 102 ′. The switching valve 103 for discharging is provided, and the switching valve 103 is used for an antifreezing faucet column provided with an operation knob 104 for switching operation when discharging water.
Thus, even when used for the antifreeze faucet column, the merchantability of the antifreeze faucet column itself can be improved by preventing water leakage from the faucet device.
The antifreezing faucet switching valve 103 is configured to drain using the difference in height, but is separately configured to drain using a mechanism that generates negative pressure. May be.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The faucet valve of the present invention corresponds to the valve packing 4 of the embodiment,
Similarly,
The upstream water channel corresponds to the upstream communication passage 21,
The downstream water channel corresponds to the downstream communication channel 22,
The shaft member corresponds to the operation spindle 3,
The intake valve corresponds to the intake piston 5 and the intake plate 6,
The external opening corresponds to the openings 38a and 38b of the external through passage,
The seal member corresponds to the packing member 7,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.
For example, the shaft member may have one external opening, or may be set so that the external opening is located on the inner side of the seal member only when the faucet valve is closed.

The whole sectional view of the faucet device of an embodiment. The principal part detailed sectional view of the faucet device at the time of intake valve closing. The principal part detailed sectional view of the faucet device at the time of intake valve opening. The principal part detailed sectional drawing of the faucet device when an O-ring deteriorates over time. The schematic diagram which shows an example of an antifreeze faucet pillar. The detailed structure of the faucet device when the spindle is provided with a conventional intake hole.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Faucet body 2 ... Operation handle 3 ... Operation spindle 4 ... Valve packing 5 ... Intake piston 6 ... Intake plate 7 ... Packing member 21 ... Upstream communication path 22 ... Downstream communication path 34 ... Intake hole 37 ... External through-passage 38a ... Opening 38b ... Opening

Claims (4)

A faucet device provided on the upstream side with a switching valve capable of discharging water to the outside,
The faucet device includes a faucet valve installed between the upstream water channel and the downstream water channel,
An operation handle for opening and closing the faucet valve;
A shaft member that is provided between the operation handle and the faucet valve and transmits an operation force from the operation handle to the faucet valve by moving in the axial direction;
An intake hole formed in the shaft member so as to extend in the axial direction, and communicates the upstream water channel with the outside;
An intake valve that is installed inside the intake hole and when the water in the upstream water channel is discharged to the outside, communicates the upstream water channel with the outside and takes in outside air into the upstream channel;
A faucet device that is set such that when the faucet valve is closed, an opening on the outside of the intake hole is located on the inner side of a seal member that seals at an intermediate position of the shaft member. The faucet device according to claim 1, wherein the opening on the outside of the intake hole is located on the inner side of the seal member even when the faucet valve is opened. The faucet device according to claim 1 or 2, wherein openings on the outer side of the intake holes are formed at two positions on the side peripheral surface of the shaft member at intervals of about 180 degrees. A discharge path for branching to an upstream water channel upstream of the water faucet device, and discharging water to the outside;
A switching valve that discharges water in the upstream water channel to the discharge channel and generates a negative pressure with the faucet device;
An operation member for switching the switching valve when water is discharged,
Draining using the faucet device according to any one of claims 1 to 3,
Drainage system.

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