JP3754661B2 - Water faucet using anti-freezing valve device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water faucet with BenSo location with anti-freeze function.
[0002]
[Prior art]
For example, as shown in FIG. 3, a faucet body (cylinder) 63 having an inlet 60, an outlet 61 and a plug rod insertion opening 62, and can be moved up and down with respect to the faucet body (cylinder) 63 from the opening 62. And a valve body 65 provided at the lower end portion of the plug rod 64, and a valve provided inside the faucet body by operating a handle 66 provided at the upper end portion of the plug rod 64. A so-called side faucet 69 that adjusts the amount of water discharged from the outlet 61 by bringing the valve body 65 into contact with the seat (seat portion) 67 or separating the valve body 65 from the valve seat 67 is provided. is there. The valve body 65 includes a small-diameter shaft portion 65a, an annular elastic body 65b fitted in a lower portion of the small-diameter shaft portion 65a, and a nut member screwed into the small-diameter shaft portion 65a from below the elastic body 65b. It consists of. The inflow port 60 communicates with the downstream end of the water stop cock connected to the pipe through the connection pipe, and a water supply flow path i to the valve seat 67 is formed. Reference numeral 68 denotes an insertion hole into which the upper portion of the small diameter shaft portion 65a is inserted so as to be movable up and down.
[0003]
The connection pipe is provided with a drain hole which is normally closed by a plug plug in order to prevent the remaining water remaining in the water supply flow path i from freezing in a cold region, for example. Yes. And at the time of freeze prevention operation, after closing the said stop cock with respect to the horizontal faucet 69 of the state which the valve body 65 was closed, the said mekula stopper is removed from the said drain hole. Thereby, before the residual water of the water supply flow path i freezes, it is discharged | emitted outside.
[0004]
[Problems to be solved by the invention]
However, this freeze prevention operation has been performed by humans.
[0005]
The present invention has been made in mind the above-mentioned matters, and its object is to provide a water faucet with BenSo location with antifreeze function antifreeze operation can be performed automatically.
[0006]
[Means for Solving the Problems]
To achieve the above object, faucets with BenSo location with antifreeze function of this invention, which has a small diameter portion up and down, having a large diameter portion between the upper small-diameter portion and the lower small-diameter portion, Further, with a frame-shaped member having a first elastic member incorporated fitted from below to the lower small-diameter portion, and a stopper rod having an internal accommodation space the frame-shaped member is vertically movably accommodated, frame type A faucet using a valve device with an antifreeze function configured to form a drainage flow path that reaches an external discharge flow path when the member moves up, wherein the plug bar is a plug bar upper member And a plug rod lower member that is detachably mounted on the plug rod upper member and forms the internal housing space with the plug rod upper member. The plug rod lower member has a bottomed cylindrical shape and an annular shape. The small-diameter portion fixed in a state where the second elastic member is fitted protrudes downward from the center of the bottom. And having a valve seat portion with which the first elastic member abuts and separates in a state protruding upward from the center of the bottom, and has a lateral hole for draining water on the peripheral surface, The stopper rod lower member has a drain hole for vertically passing through the valve seat portion, the bottom, and the small diameter portion, and the stopper rod lower member always has the large diameter portion upward. The coil spring to be urged is provided on the lower side of the large-diameter portion in the internal housing space. On the other hand, when the temperature is higher than a predetermined temperature, the large-diameter portion is urged downward by a larger urging force than the coil spring. While the elastic member is abutted against the valve seat portion, the first elastic member is contracted when the temperature is equal to or lower than a predetermined temperature to separate the first elastic member from the valve seat portion by the biasing force of the coil spring, thereby Passes through the internal housing space and out of the lateral hole A spring made of a shape memory alloy material to form a drain passage leading to the upper side of the large diameter portion of the inner housing space.
[0007]
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the invention will be described below.
1 and 2 show an embodiment of the present invention. In this embodiment, as the faucet, a faucet having a faucet body (cylinder) having an inflow port, an outflow port and a plug rod insertion opening and having a valve seat inside is adopted.
[0009]
In FIG. 1, the anti-freezing function valve device 1 includes a top member 2 and an internal housing space S in which the top member 2 is housed so as to be vertically movable (movable in a vertical direction indicated by a double arrow A). Mainly with the stopper rod 4.
[0010]
The plug bar 4 includes a plug bar upper member 5 and a plug bar lower member 13 which is detachably attached to the plug bar upper member 5 and forms the internal housing space S with the plug bar upper member 5. .
[0011]
The top-shaped member 2 has an upper small-diameter portion 2a that is located on the upper side and is long in the vertical direction (A direction), and is shorter and shorter in the vertical direction (A direction) than the upper small-diameter portion 2a that is located on the lower side. The lower small diameter portion 2b of the isosceles trapezoidal shape with a smaller diameter than that of 2a, the large diameter portion 2c which is located between both small diameter portions 2a and 2b and is short in the vertical direction (A direction), and the lower small diameter portion 2b is fitted from below And a packing (first elastic member) 2d.
[0012]
The plug bar upper member 5 includes, in order from the top, a cylindrical outer screw portion 6, a cylindrical intermediate portion 7 having a larger diameter and longer in the vertical direction (A direction), and a nut portion 8 having a larger diameter than the intermediate portion 7. Consists of. The nut portion 8 has an external screw 8a on the outer peripheral surface. 8 b is an internal thread of the nut portion 8. Reference numeral 9 denotes an insertion hole into which the upper small-diameter portion 2a of the top member 2 is inserted so as to be movable in the vertical direction (A direction), and is positioned on the axis Z of the stopper rod 4 . The axis Z is parallel to the vertical direction (A direction). Reference numeral 10 denotes a screw hole in which an internal screw 12 into which a handle fixing screw 11 is screwed is formed.
[0013]
On the other hand, the stopper rod lower member 13 has a bottomed cylindrical shape. The stopper rod lower member 13 has a cylindrical portion 14 and a small diameter portion 15. The small diameter portion 15 is formed so as to protrude downward from the center of the bottom 14 a of the cylindrical portion 14. The small-diameter portion 15 has an external screw 15a on the outer peripheral surface, and an annular packing (second elastic member) 16 having a larger diameter than the first elastic member 2d is fitted into the upper surface portion of the outer peripheral surface. When the nut member 17 is screwed onto the lower surface portion of the outer peripheral surface from below, the annular packing (second elastic member) 16 is brought into close contact with the lower surface of the bottom 14a.
[0014]
A lower space in which the large-diameter portion 2 c is located in the internal housing space S is formed inside the cylindrical portion 14, and an upper space in the internal housing space S is formed by the insertion hole 9. .
[0015]
Further, the cylindrical portion 14 has a valve seat portion 20 with which the first elastic member 2d abuts and separates in a state of protruding upward from the center of the bottom 14a of the cylindrical portion 14, and a plurality of water on the circumferential surface. A horizontal hole 21 for extraction is provided.
[0016]
The stopper rod lower member 13 has a drainage vertical hole 22 that vertically penetrates the valve seat portion 20, the bottom 14 a and the small diameter portion 15. Note that the screw hole 10, the insertion hole 9, and the vertical hole 22 are located on the axis Z of the plug rod 2.
[0017]
The cylindrical portion 14 has a coil spring 25 that constantly urges the large-diameter portion 2c upward at the lower side of the large-diameter portion 2c in the internal housing space (the lower space) S, while tap water When the temperature is equal to or higher than a predetermined temperature, the large-diameter portion 2c is urged downward with an urging force larger than that of the coil spring 25 to bring the first elastic member 2d into contact with the valve seat portion 20, while tap water When the temperature becomes lower than a predetermined temperature, the first elastic member 2d is contracted to be separated from the valve seat portion 20, and thereby the antifreezing function from the horizontal hole 21 through the vertical hole 22 through the lower space. A spring 26 made of a shape memory alloy material that forms a drainage flow channel reaching a later-described discharge flow channel 37 outside the valved device 1 is formed in the inner housing space (the lower space) S of the large diameter portion 2c. Have on the top.
[0018]
Next, the faucet 30 on which the anti-freezing function valve device 1 is detachably mounted will be described.
[0019]
In FIG. 2, the faucet 30 has an inflow port 31, an outflow port (discharge port) 32, a plug rod insertion opening 33, and a faucet body (body) 35 having a valve seat 34 inside, and the plug rod. The anti-freezing function valve device 1 is detachably attached to the faucet body (body) 35 through the insertion opening 33.
[0020]
The valve seat 34 is located between a water supply passage 36 that communicates with an upstream piping passage and a discharge passage 37 that communicates with a downstream outlet (discharge port) 32. The lateral hole 21 of the anti-freezing function valve device 1 communicates with the discharge flow path 37, and an annular packing (second elastic member) 16 is connected to the valve seat 34 when the faucet 30 is stopped. The anti-freezing function valve device 1 is mounted in the faucet body (body) 35 through the stopper rod insertion opening 33 so as to abut against the faucet body.
[0021]
Further, the faucet body (trunk) 35 has an inner screw 38 that is screwed to the outer thread 8 a of the stopper bar upper member 5 on the inner peripheral surface of the faucet body (trunk) 35. And as mentioned above, after inserting the valve device 1 with antifreezing function into the faucet body (body) 35 through the plug rod insertion opening 33, the screws 8a and 38 are screwed together to prevent freezing. The valve device with function 1 is attached to a faucet body (body) 35.
[0022]
Reference numeral 40 denotes a handle that is screwed to the outer screw portion 6 and is fixed to the upper end of the stopper bar upper member 5 by a handle fixing screw 11.
[0023]
Then, by operating the handle 40, the annular packing (second elastic member) 16 is brought into contact with the valve seat (seat portion) 34 provided in the faucet body 35, or the annular shape is removed from the valve seat 34. The amount of tap water discharged from the outlet 32 can be adjusted by separating the packing (second elastic member) 16.
[0024]
Thus, when the annular packing (second elastic member) 16 comes into contact with the valve seat (seat portion) 34 and is in a water-stopping state, when the tap water becomes cold below a predetermined temperature, the shape memory alloy A spring 26 made of a material is contracted to separate the first elastic member 2d from the valve seat portion 20, thereby passing the inside of the lower space from the vertical hole 22 and the valve device with an antifreeze function from the lateral hole 21. 1 is formed as a water drainage channel reaching the external discharge channel 37. Therefore, the tap water remaining in the water supply flow path 36 is frozen by discharging the tap water remaining in the water supply flow path 36 from the outlet (discharge port) 32 through the drainage flow path. Can be prevented automatically.
[0025]
【The invention's effect】
In the present invention, there is an effect that it is possible to provide a water faucet with BenSo location with antifreeze function antifreeze operation can be performed automatically.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a diagram showing a use state of the embodiment.
FIG. 3 is a diagram showing a use state of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Valve apparatus with a freeze prevention function, 2 ... Top-shaped member, 2c ... Large diameter part, 2d ... Packing (1st elastic member), 4 ... Plug bar, 5 ... Plug bar upper member, 13 ... Plug bar lower member 14a ... bottom, 15 ... small diameter part, 16 ... annular packing (second elastic member), 20 ... valve seat part, 21 ... side hole, 22 ... vertical hole, 25 ... coil spring, 26 ... from shape memory alloy material 30 ... faucet, 31 ... inflow port, 32 ... outflow port, 33 ... opening for plug rod insertion, 34 ... valve seat, 35 ... faucet body (body), S ... internal housing space.

Claims (2)

A top-shaped member having a first elastic member having a small-diameter portion at the top and bottom, a large-diameter portion between the upper small-diameter portion and the lower small-diameter portion, and a first elastic member fitted into the lower small-diameter portion from below; A stopper rod having an internal housing space in which the top member is accommodated so as to be movable up and down, and is configured to form a drainage channel that reaches the external discharge channel when the top member moves upward. A faucet using a valve device with anti-freezing function,
The plug bar is composed of a plug bar upper member and a plug bar lower member that is detachably attached to the plug bar upper member and forms the internal housing space with the plug bar upper member.
The bottom member of the plug bar has a bottomed cylindrical shape, and has a small-diameter portion fixed in a state where the annular second elastic member is fitted in a state of projecting downward from the center of the bottom, and the center of the bottom And a valve seat portion with which the first elastic member abuts and separates in a state protruding upward from the peripheral surface, and has a lateral hole for draining water on the peripheral surface.
The stopper rod lower member has a vertical hole for draining vertically through the valve seat portion, the bottom and the small diameter portion, and
The plug bar lower member has a coil spring that constantly urges the large-diameter portion upward at the lower side of the large-diameter portion in the internal housing space, and has a larger urging force than the coil spring when the temperature is equal to or higher than a predetermined temperature. The large diameter portion is urged downward to bring the first elastic member into contact with the valve seat portion. On the other hand, when the temperature is below a predetermined temperature, the first elastic member is contracted by the urging force of the coil spring. A spring made of a shape memory alloy material is formed in the internal housing space so as to be spaced apart from the valve seat portion, thereby forming a water drainage channel from the vertical hole through the internal housing space to the outside through the lateral hole. A faucet using a valve device with an antifreezing function, characterized by having an upper side of the large-diameter portion. Water supply channel, discharge channel, the faucet body having a valve seat and Senbo insertion opening located between both flow paths, detachably mounted said freezing prevention function with valve apparatus through the stopper rod insertion opening A faucet using the valve device with a freeze prevention function according to claim 1 .

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