JP3023926U - Water faucet - Google Patents

Abstract

(57) [Abstract] [Purpose] The installation work of the intake valve to the water pipe is unnecessary, and it can be installed very easily, and the intake valve can always be installed at the optimum position, and contributes to the improvement of appearance and cost reduction. To do. [Structure] A water outlet 2 is provided at a front end, a water pipe connecting portion 3 is provided at a rear end, and a plug function portion 5 for opening and closing a water supply passage 4 between the water outlet 2 and the connecting portion 3 is provided at an intermediate position. . The faucet body 1x between the plug function part 5 and the connection part 3 is closed with the ventilation passage 6 which communicates the water supply passage 4 with the atmosphere A, and at least the ventilation passage 6 is closed by the inflow of water from the water supply passage 4 to the water supply passage 4. An intake valve 8 having a valve function portion 7 that opens the ventilation path 6 by the outflow of water or the inflow of the atmosphere A is integrally provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a faucet suitable for use in water supply facilities such as a cold region equipped with a water drain plug.

[0002]

[Background technology and its problems]

 In general, water supply facilities are equipped with faucets for supplying or stopping water, and especially for water supply facilities in cold regions, a water drain plug (antifreeze plug) that prevents freezing in the water pipe is attached in the middle of the water pipe. The water pipes that are set up on the ground are drained when not in use, such as at night.

[0006] By the way, when water is drained in such a cold district water supply facility, the water pipe is completely sealed, so that there is a problem that water is not drained smoothly and drainage is insufficient. . Therefore, as a means for solving this problem, if an intake valve (for example, see Japanese Utility Model Laid-Open No. 59-105661) is attached to the water distribution pipe, the atmosphere is sucked into the pipe when draining water, so that smooth drainage can be achieved. It will be possible.

However, when an intake valve is attached to a water supply facility, a separate connecting pipe is required, which makes mounting work difficult, and there is a problem to be solved that cost rises and appearance is impaired.

The present invention solves the problems existing in the background art as described above, and the installation work of the intake valve for the water pipe is not required, and the intake valve can be installed very easily and the intake valve can be installed very easily. The objective is to provide a water faucet that can be installed at the optimum position at all times and that contributes to improving the appearance and reducing costs.

[0006]

[Means for Solving the Problems]

 The present invention has a water outlet portion 2 at the front end, a connection portion 3 to the water pipe P at the rear end, and a plug function portion for opening and closing a water supply passage 4 between the water outlet portion 2 and the connection portion 3 at an intermediate position. When constructing the water faucet 1 including the water supply pipe 5, the faucet body 1x between the plug function portion 5 and the connection portion 3 is connected to the ventilation passage 6 communicating the water supply passage 4 and the atmosphere A, and at least from the water supply passage 4. The intake valve 8 is integrally provided with a valve function portion 7 which is closed by the inflow of the water W and is opened by the outflow of the water W or the air A into the water supply passage 4. It is characterized by It is desirable that the intake valve 8 be provided so as to be attachable to and detachable from the faucet body 1x.

[0007]

[Action]

 According to the water faucet 1 according to the present invention, since the intake valve 8 is integrally provided between the plug function part 5 and the connection part 3 in the faucet body 1x, the faucet 1 is simply connected to the water pipe P and the intake air is taken at the same time. The valve 8 is also attached to the water pipe P.

Due to the presence of the intake valve 8, during normal water supply, the water W enters the water supply passage 4, so that the water W also flows into the ventilation passage 6 and the valve function portion 7 is closed by the water pressure. Therefore, leakage of the water W to the outside is prevented. On the other hand, when draining water, the water W in the water supply passage 4 is discharged to the outside, so that the water W in the ventilation passage 6 flows into the water supply passage 4 and the valve function section 7 opens due to the negative pressure. Therefore, the atmosphere flows into the water supply passage 4 through the ventilation passage 6, and smooth drainage is performed.

[0009]

【Example】

 Next, a preferred embodiment according to the present invention will be described in detail with reference to the drawings.

First, the configuration of the water faucet 1 according to the present invention will be described with reference to FIGS. 1 to 4.

The faucet 1 includes a faucet body 1x and an intake valve 8. The faucet body 1x further includes a body portion 10 which constitutes a rear portion of the faucet, and a nozzle 11 which constitutes a front portion of the faucet and is rotatably attached to a front end of the body portion 10.

The body portion 10 has the water supply passage 4 therein and is formed in a pipe shape that is rearward and downward. The reason why the water W is formed in the rearward and downward direction is to prevent the water W from remaining in the body portion 10 when the water is drained. Further, at the rear end of the body portion 10, a connection portion 3 having a screw portion 12n formed on the outer circumference is provided. The connecting portion 3 is connected to the water pipe P (see FIG. 5), and the rear end surface of the connecting portion 3 faces the rear end of the water supply passage 4. On the other hand, a plug function part 5 is provided in front of the body part 10. The plug function unit 5 includes a valve seat unit 14, a valve body unit 15, and an operation unit 16. The valve seat portion 14 is configured by providing a water passage hole 14h in a partition portion 14t that partitions the water supply passage 4, and the valve body portion 15 is formed by providing a packing 15p at the tip of the valve block 15b. Open and close. Further, the operation portion 16 includes a shaft 17 having a handle 18 attached to the upper end. The shaft 17 has a threaded portion 17n formed on the outer periphery thereof screwed into a threaded hole 19 provided in the body portion 10 to support the valve body portion 15 at the lower end and project the upper end outwardly upward. Therefore, when the handle 18 is turned, the shaft 17 moves up and down, and the valve body portion 15 opens and closes the water passage hole 14h of the valve seat portion 14.

Further, the nozzle 11 is bent into a dogleg shape and is formed into a pipe shape having the water supply passage 4 therein. Then, the front end becomes the water outlet portion 2 which the front end of the water supply passage 4 faces.

On the other hand, the intake valve 8 is integrally provided on the upper surface of the body portion 10 between the plug function portion 5 and the connection portion 3. In this case, the intake valve 8 is formed with a threaded portion 8n on the outer circumference of the lower portion, and is screwed into a screw hole 21 provided on the upper surface of the body portion 10 via an O-ring (sealing material) 22. As a result, the intake valve 8 can be attached to and detached from the faucet body 1x, and maintenance of the intake valve 8 or replacement due to a failure can be easily performed. The intake valve 8 has a float valve storage chamber 23 inside. An outer position of the bottom surface of the float valve accommodating chamber 23 communicates with the water supply passage 4 through the inner ventilation passage 6i, and a guide recess 24 is formed at a central portion thereof. The bottom surface of the float valve accommodating chamber 23 serves as a valve seat 27. A float valve 25 is housed in the float valve housing chamber 23. The float valve 25 is formed by a valve main body 25b having a diameter larger than that of the guide recess 24 and a guide pin 25p having a diameter smaller than that of the guide recess 24 and protruding downward from the lower surface thereof. The guide pin 25p is inserted into the guide recess 24. . As a result, a predetermined gap is formed between the guide pin 25p and the guide recess 24. Reference numeral 26 denotes a packing attached to the lower surface of the valve body 25b. Moreover, the intermediate position of the guide recess 24 communicates with the atmosphere A through the outside air passage 6o. The inner air passage 6i, the float valve accommodating chamber 23, the guide recess 24, and the outer air passage 6o form the air passage 6, and the float valve 25 and the valve seat 27 form the valve function unit 7.

Next, a method of attaching the water faucet 1 to the water supply facility will be described with reference to FIG.

FIG. 5 shows a water supply system in a cold region. Pe is a water pipe buried in the ground, and a water drain plug 31 is attached to the middle of the pipe. Ps is a water pipe on the ground which is erected from the downstream side of the water tap 31 in the water pipe Pe and passes through the wall F of the house and is exposed from the wall surface of a predetermined height. Then, the connection portion 3 of the faucet 1 according to the present invention is screwed to the tip connection portion of the water pipe Ps. Therefore, the intake valve 8 is arranged at the uppermost end of the water pipe Ps and in the vicinity of the plug function part 5 in the faucet body 1x, and the installation position is ideal.

Next, the function of the water faucet 1 will be described.

First, during normal water supply with the water drain plug 31 operated to the non-water drain side, water W is supplied to the water pipe Ps and the water supply passage 4 through the water drain plug 31, and as shown in FIG. It flows into the float valve accommodating chamber 23 through the ventilation path 6i. As a result, the float valve 25 is pressed downward by water pressure (and its own weight), and the valve body 25b (packing 26) is brought into pressure contact with the valve seat 27 to close the ventilation path 6. This prevents the water W from leaking to the outside.

On the other hand, at the time of drainage by operating the drainage plug 31 to the drainage side, the water W in the water pipe Ps on the downstream side of the drainage plug 31 is discharged to the outside through the drainage plug 31. As a result, as shown in FIG. 3, the water W in the inner ventilation passage 6i and the float valve accommodating chamber 23 flows out into the water supply passage 4, and the negative pressure generated at this time causes the float valve 25 to float and open the ventilation passage 6. . Therefore, the atmosphere flows into the water supply passage 4, and smooth drainage is performed.

Although the embodiments have been described in detail above, the present invention is not limited to such embodiments. For example, the intake valve may be non-detachable by providing a part or all of the intake valve integrally with the faucet body. Further, the intake valve may be configured as an intake / exhaust valve that allows exhaust to the outside. In addition, the configuration and shape of the details can be arbitrarily changed without departing from the gist of the present invention.

[0021]

[Effect of device]

 As described above, the faucet for water supply according to the present invention has the faucet body between the plug function portion and the connection portion, the ventilation passage communicating with the water supply passage and the atmosphere, and the ventilation passage at least by the inflow of water from the water supply passage. Since the intake valve is integrally provided with a valve function part that closes the valve and opens the ventilation path by the outflow of water or the atmosphere into the water supply path, the following remarkable effects are achieved.

Installation work of the intake valve to the water pipe is not required, and the installation can be performed extremely easily, and in addition, it can contribute to the improvement of appearance and cost reduction.

In any existing type of water supply system, the intake valve can always be installed in the optimum position.

Since the intake valve is attached to and detached from the faucet body, maintenance of the intake valve and replacement due to a failure can be easily performed.

[Submission date] September 7, 1994

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

The present invention has a water outlet 2 at the front end and a water pipe P at the rear end.
When constructing the water faucet 1 which is provided with the connection part 3 to the water supply port and which is provided with the plug function part 5 which opens and closes the water supply path 4 between the water discharge part 2 and the connection part 3 at the intermediate position, in particular, the plug function part 5 The ventilation passage 6 that connects the water supply passage 4 and the atmosphere A to the faucet body 1x between the connection portion 3 and the connection portion 3, and at least the water passage W from the water supply passage 4 closes the ventilation passage 6 and the water W to the water supply passage 4 Is integrally provided with an intake valve 8 having a valve function portion 7 that opens the ventilation path 6 by the outflow of the air or the inflow of the atmosphere A. In this case, the optimal embodiment
Therefore, the intake valve 8 has the float valve storage chamber 23 and the float valve storage chamber 23 inside.
Of the float valve accommodating chamber 23.
In the water supply passage 4, the guide recesses 24 are communicated with the atmosphere A, respectively, and
The float valve 25 is housed in the valve housing chamber 23. In addition, the float valve 25 is a float
A valve body 25b having a diameter larger than that of the guide recess 24 housed in the valve housing chamber 23, and the valve body 25b.
The guide recess 2 that projects downward from the lower surface of the body 25b and is housed in the guide recess 24
A guide pin 25p having a diameter smaller than 4 is provided. On the other hand, the intake valve 8 is opposed to the faucet body 1x.
And be installed detachably.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a water faucet according to the present invention,

FIG. 2 is a vertical cross-sectional view of the intake valve in the tap for supplying water,

FIG. 3 is a vertical cross-sectional view of the intake valve in the tap for draining water,

FIG. 4 is an external side view of the faucet for the water supply,

FIG. 5 is a schematic configuration diagram of a water supply facility equipped with the water supply faucet,

[Explanation of symbols]

 1 Faucet 1x Faucet body 2 Water outlet part 3 Connection part 4 Water supply channel 5 Plug function part 6 Ventilation path 7 Valve function part 8 Intake valve P Water pipe A Atmosphere W Water

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[Procedure amendment]

[Submission date] September 7, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a water faucet according to the present invention,

FIG. 2 is a vertical cross-sectional view of the intake valve in the tap for supplying water,

FIG. 3 is a vertical cross-sectional view of the intake valve in the tap for draining water,

FIG. 4 is an external side view of the faucet for the water supply,

FIG. 5 is a schematic configuration diagram of a water supply facility equipped with the water supply faucet,

[Explanation of symbols] 1 faucet 1x faucet main body 2 water outlet 3 connection 4 water supply channel 5 plug function 6 ventilation channel 7 valve function 8 intake valve P water pipe A atmosphere W water 23 float valve accommodating chamber 24 guide recess 25 float Valve 25b Valve body 25p Guide pin

Claims (2)

[Scope of utility model registration request] 1. A water supply system having a water outlet at a front end, a water pipe connecting portion at a rear end, and a plug function portion for opening and closing a water supply passage between the water outlet and the connecting portion at an intermediate position. In the faucet, the faucet body between the plug function part and the connection part has a ventilation passage communicating with the atmosphere and a water supply passage, and the ventilation passage is closed at least by the inflow of water from the water supply passage, and the water flows out into the water supply passage or the atmosphere. A water faucet which is integrally provided with an intake valve having a valve function portion that opens a ventilation path by the inflow of water. 2. The water faucet according to claim 1, wherein the intake valve is detachably provided to the faucet body.