JP5599101B2 - Branch faucet - Google Patents

Description

  The present invention relates to a branch water stop cock for supplying water to a water purifier, a dishwasher, a washing machine, and the like, for example.

  For the stopcock that is provided upstream of the faucet body installed in the wash basin and for supplying and stopping hot water to the faucet body, its operation part is placed in the cabinet of the wash basin. In general, the cabinet can be operated by opening the front door of the cabinet toward the front side.

  In addition to the stopcock, a branch plug is provided on the upstream side of the faucet body of the wash basin so that hot water can be supplied to and stopped from other faucet appliances (faucet equipment). There is also known a technique for providing a valve, and Patent Document 1 discloses a technique in which the operation parts (handles) of the water stop cock and the branch cock are both arranged in the cabinet in the state of facing the front side, and both are arranged vertically. Is disclosed.

  According to such a technique, the operability of the stop cock as well as the stop cock can be improved.

JP 2008-115668 A

  However, in the technique according to Patent Document 1, although there are two pipe connection ports for connecting the branch pipe, each direction is fixed, so the pipe that does not interfere with the water receiving tank etc. Even if it is connected to the connection port, there is a risk that the piping for branching after connection will be forced to be largely routed.

  Moreover, in the technique by patent document 1, each pipe connection port is being fixed sideways, and the connection operation | work of the branch piping with respect to a pipe connection port is performed in the narrow space in a cabinet, and may become difficult.

  Furthermore, in the technique according to Patent Document 1, the operation parts of the stop cocks and the branch stoppers are arranged one above the other, and it is difficult to intuitively understand whether each operation part corresponds to the stop cock or the branch stopper. easy.

  The present invention has been made in consideration of the above-mentioned matters. The purpose of the present invention is to provide a branch stop cock that eliminates the need for large routing of branch pipes, facilitates connection work of branch pipes, and is unlikely to cause erroneous operations. It is to provide.

In order to achieve the above object, a branch stop cock according to the present invention comprises a main pipe having a cylindrical portion, a branch port provided in the cylindrical section, and a branch pipe connected to the main pipe. The branch pipe is externally fitted to the cylindrical part, and a connecting cylinder part that forms a communication space communicating with the branch port between the outer wall surface of the cylindrical part, and an inner space communicates with the communication space. A branch plug is attached to a portion of the branch pipe between the connecting tube portion and the tube connecting portion, and the connecting tube portion is externally fitted to the cylindrical portion. The branch pipe is rotatable about the axis of the cylindrical portion, and a water stop cock is attached to the main pipe, and the main pipe is passed through the main pipe by the water stop cock. A partition wall is provided that divides into a space on the upstream side and a space on the downstream side with respect to the water stop cock, and the branch port is connected to the water stop cock in the tubular portion. It is provided in the area for forming a space for remote upstream (claim 1).

According to the first aspect of the present invention, it is possible to obtain a branch water faucet that eliminates the need for large routing of the branch pipe, facilitates the connection work of the branch pipe, and is unlikely to cause erroneous operation.

That is, in the branch stop cock of the invention according to claim 1 , the direction of the branch pipe can be changed around the axis of the cylindrical portion of the main pipe, and a branch pipe connected to the pipe connection portion of the branch pipe is desired. In addition to avoiding interference between the branch pipe and surrounding members, it is possible to easily eliminate or prevent the branch pipe from being largely routed and the branch pipe itself from being twisted. .

  In this branch stop cock, when connecting the branch pipe to the pipe connection portion of the branch pipe, the pipe connection work can be facilitated if the pipe connection portion is directed, for example, to the front side of the operator. Therefore, in this branch stop cock, when connecting the branch pipe to the branch pipe, the branch pipe is directed in a direction (for example, forward) suitable for the connection work, and after the connection work, the branch pipe is a peripheral member. Therefore, it is possible to rotate the branch pipe so as not to interfere with other operations, and the space around the branch stop cock can be used very effectively.

  In the technique described in Patent Document 1, a blind cover for closing the unused one of the two pipe connection ports in the branch stop cock is separately required, and a space for attaching / detaching the blind cover is provided by a member in the periphery. There is a risk that the restriction may cause troubles in the attaching / detaching work, or water leakage may occur due to forgetting to attach the blind cover or poor attachment. However, the blind stopper of the present invention does not require a blind cover, and the above various problems cannot occur.

In the branch stop cock of the invention according to claim 1 , since the operation of the branch stopper can be performed in a state where the branch stopper is positioned on the front side, the water stop cock can be operated only by pointing the stop cock to the front side. The operability of both the stopper and the branch stopper can be improved.

  In addition to this branch stop cock, a stop cock is provided on the stationary main pipe, and a branch stopper is provided on the rotating branch pipe, so that the stop cock and the branch stopper can be intuitively distinguished from each other. Therefore, it is difficult to cause an erroneous operation based on the mistake of the stop cock and the branch plug, and this effect is further improved by making the operation portions of the stop cock and the branch plug have different directions.

It is explanatory drawing which shows roughly the use condition of the branch water stop cock which concerns on one embodiment of this invention. It is a longitudinal cross-sectional view which shows the structure of the said branch water stop cock roughly. (A) And (B) is a perspective view which shows roughly the structure of the said branch stop cock when it sees from a 90 degree mutually different direction. (A) And (B) is an exploded perspective view of the said branch stop cock corresponding to Drawing 3 (A) and (B), respectively. (A) And (B) is the front view and back view of the said branch stop cock. (A) And (B) is the top view and bottom view of the said branch stop cock. (A) And (B) is the right view and left view of the said branch stop cock.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the branch stop cock 1 according to the present embodiment includes a faucet body of a hot and cold water mixing faucet (partly shown in FIG. 1). It is provided upstream of 3). In this embodiment, the water faucet body 3 is supplied with hot water passing through the hot water supply pipe 4 and the water stop cock 5 and the hot water supply pipe 6, and also passed through the water supply pipe 7 and passed through the branch water stop cock 1 and the water supply pipe 8. Water is supplied. In addition, about members other than the branch stop cock 1 shown in FIG. 1, since a conventionally well-known thing can be used, those detailed description is abbreviate | omitted.

  As shown in FIGS. 1 to 7, the branch stop cock 1 includes a main pipe 9 and a branch pipe 10, and the main pipe 9 constitutes a part of a water supply flow path to the faucet body 3. The water supply flow path to the faucet body 3 formed by the main pipe 9 is branched, and the water supply flow path (branch flow path) to a faucet appliance (water faucet device) such as a washing machine (not shown) other than the faucet body 3 ).

  As shown in FIG. 2, the main pipe 9 is provided with an upstream side pipe connection port 11 on one end (lower end) side, and a downstream side pipe connection port 12 is provided on the other end (upper end) side. A non-handle-type stop cock 13 for supplying water to the faucet body 3 and stopping water is attached to the part.

  The water stopcock 13 includes a shaft-shaped plug body (spindle) 14. The plug body 14 has a male screw 14a that is screwed into a female screw 15a of a water stopcock holding cylinder portion 15 provided in the main pipe 9, so that a dedicated groove 14b is provided on the distal end surface of the plug body 14. When the plug body 14 is rotated around its axis by a tool or the like (not shown), the plug body 14 moves toward and away from the valve seat 16 in the main pipe 9. When the plug body 14 approaches the valve seat 16 and the ring-shaped valve body 18 attached to the plug body 14 with the screw 17 is pressed against the valve seat 16, the valve is closed.

  The stopper main body 14 is in contact with the opening edge of the stop cock holding cylinder portion 15, and isher 19 for preventing the stopper main body 14 from coming off, and for sealing the opening edge of the stop cock holding cylinder portion 15. The packing 20 is externally fitted and attached, and these members 19, 20 are sandwiched between a stop cock holding cylinder 15 and a cap nut 21 screwed to the outer peripheral surface of the stop cock holding cylinder 15. .

  As shown in FIG. 2, a space (chamber) S1 and a space (chamber) on the upstream side of the stopcock 13 and the downstream space (chamber) inside the main pipe 9 by a stopcock 13 in a valve-closed state. A partition wall 22 partitioned into S2 is provided, and the partition wall 22 has the valve seat 16 described above.

  The branch pipe 10 is connected to the main pipe 9 by external fitting of the connecting cylinder portion 24 of the branch pipe 10 to the cylindrical portion 23 of the main pipe 9 as shown in FIGS. 2, 4 (A) and (B). Is called. The outer diameter of the downstream side pipe connection port 12 is smaller than the inner diameter of the connecting cylinder portion 24 so as not to prevent this external fitting.

  The branch pipe 10 in a state in which the connecting cylinder portion 24 is externally fitted to the cylindrical portion 23 can be rotated around the axial center of the cylindrical portion 23, and above and below the outer peripheral side portion of the cylindrical portion 23. The first annular projecting portion 25 and the second annular projecting portion 26 are provided so as to protrude coaxially, and a seal member (for example, an O-ring) 27 is mounted on the outer peripheral side of these portions 25, 26, and A first annular inner wall portion 28 and a second annular inner wall portion 29 that are externally fitted to these portions 25 and 26 are provided above and below the connecting tube portion 24.

  The outer diameter of the first annular projecting portion 25 of the cylindrical portion 23 and the inner diameter of the first annular inner wall portion 28 fitted on the first annular projecting portion 25 are substantially the same, but the first is larger than these. Since the outer diameter of the two annular projecting portions 26 is large (see FIG. 2) and the first annular inner wall portion 28 cannot be fitted onto the second annular projecting portion 26, the connecting tubular portion 24 is connected to the tubular portion 23. The vertical direction of the branch pipe 10 when the is fitted is inevitably determined.

  As shown in FIGS. 2, 4 (A) and 4 (B), the main tube 9 has a tubular portion 23 so that the connecting tubular portion 24 fitted on the tubular portion 23 stops at the fitting position. Further, a holding portion 30 that protrudes laterally (outwardly in the radial direction) and is held in contact with the connecting cylindrical portion 24 that is externally fitted to the cylindrical portion 23 is provided. The main pipe 9 also has a retaining member (a substantially C-shaped snap ring in this embodiment) 31 that is detachably mounted in order to prevent the connecting tube portion 24 that is externally fitted to the tubular portion 23 from coming off. A mounting portion (circular groove in this embodiment) 32 is provided.

  As shown in FIG. 2, a pipe connecting part 33 is provided at the tip of the branch pipe 10, and a part between the pipe connecting part 33 and the connecting cylinder part 24 in the branch pipe 10 is connected to the pipe connecting part 33. A branch plug 34 for supplying and stopping water to a faucet device (a faucet device) connected to the tip of a branch pipe (not shown) is attached.

  The branch plug 34 includes a shaft-shaped plug body (spindle) 35. The plug main body 35 has a male screw 35a that is screwed into a female screw 37a of a guide sleeve 37 that is screwed into the branch plug holding cylinder portion 36 of the branch pipe 10, so that a groove 35b provided on the distal end surface of the plug main body 35 is used. Then, when the plug main body 35 is rotated around its axis by a dedicated tool or the like (not shown), the plug main body 35 moves toward and away from the valve seat 38 in the branch pipe 10. When the plug main body 35 approaches the valve seat 38 and the ring-shaped valve body 39 attached to the plug main body 35 is pressed against the valve seat 38, the valve is closed. Water leakage from between the plug body 35 and the guide sleeve 37 is caused by a seal member (for example, an O-ring) 40, and water leakage from between the guide sleeve 37 and the branch plug holding cylinder portion 36 is performed by a seal member (for example, an O-ring). Ring) 41 prevents each.

  As shown in FIG. 2, a space (chamber) S3 and a space (chamber) on the upstream side of the branch plug 34 and the space (chamber) on the downstream side of the branch plug 10 are provided in the branch pipe 10 by the branch plug 34 in a closed state. A partition wall 42 partitioned into S4 is provided, and the partition wall 42 has the valve seat 38 described above.

  Next, the operation of the branch stop cock 1 of the present embodiment will be described with reference to a more specific configuration of the branch stop cock 1.

  When the stop cock 13 is in the open state, the water that has reached the space S1 of the main pipe 9 from the upstream pipe connection port 11 is between the valve seat 16 of the partition wall 22 and the valve body 18 of the stop cock 13. It passes through the space S2 through the downstream pipe connection port 12 (see FIG. 2). When the stop cock 13 in the valve open state is switched to the valve close state, the water in the space S1 cannot be moved to the space S2.

  Regardless of whether the branch plug 34 is in the valve open state or the valve closed state, the water that has reached the space S1 of the main pipe 9 from the upstream side pipe connection port 11 flows into the space S1 in the tubular portion 23 of the main pipe 9. It passes through the branch port 43 (see FIG. 2) provided in the portion forming the pipe and reaches the space S3 of the branch pipe 10. That is, the branch pipe 43 brings the branch pipe 10 into communication with the main pipe 9, and the connecting tube portion 24 communicates with the branch port 43 through the annular communication space that is a part of the space S <b> 3. It forms between the outer wall surfaces.

  When the branch plug 34 is in the valve open state, the inner space of the pipe connecting portion 33 is in communication with the space S3, and the water that has reached the space S3 is the valve seat 38 of the partition wall 42 and the valve of the stop cock 34. It passes between the body 39 and reaches the space S4 and is led out from the pipe connecting portion 33 (see FIG. 2). When the stop cock 34 in the open state is switched to the closed state, the water in the space S3 cannot be moved to the space S4.

  In the branch stop cock 1 of this embodiment, the direction of the branch pipe 10 can be freely changed around the axis of the cylindrical portion 23 of the main pipe 9, and the branch pipe connected to the pipe connection portion 33 of the branch pipe 10. (Not shown) can be extended in a desired direction, avoiding interference between the branching pipe and surrounding members, etc., as well as eliminating large routing of the branching pipe and twisting of the branching pipe itself. Prevention can be easily achieved.

  Further, in this branch water stop cock 1, when connecting the pipe for branching to the pipe connecting part 33, the pipe connecting work can be facilitated by directing the pipe connecting part 33 to the front side of the operator, for example. Therefore, in the branch stop cock 1 of this embodiment, when connecting the branch pipe to the branch pipe 10, the branch pipe 10 is directed in a direction (for example, forward) suitable for this connection work, and after the connection work, for branching. It is possible to rotate the branch pipe 10 so that the piping does not interfere with surrounding members and the like and does not interfere with other operations, and the space around the branch stop cock 1 can be used very effectively.

  Moreover, in the branch stop cock 1, the stop cock 13 can always be directed to the front side, and the stopper main body 35 can be rotated with the branch stopper 34 positioned on the front side. The operability of both the water tap 13 and the branch plug 34 is also excellent.

  In the technique described in Patent Document 1, a blind cover for closing the unused one of the two pipe connection ports in the branch stop cock is separately required, and a space for attaching / detaching the blind cover is provided by a member in the periphery. There is a risk that the restriction may cause troubles in the attaching / detaching work, or water leakage may occur due to forgetting to attach the blind cover or poor attachment. However, the dimming stopper 1 of this embodiment does not require a blind cover, and the above-mentioned various problems cannot occur.

  Further, in the branch stop cock 1 of this embodiment, the stop cock 13 is provided in the stationary main pipe 9 and the branch stopper 34 is provided in the rotating branch pipe 10, so that the stop cock 13 and the branch stopper 34 can be intuitively connected. Each image can be distinguished and operated, and an erroneous operation based on the mistake of the stop cock 13 and the branch plug 34 is unlikely to occur. In the present embodiment in which the directions of the front end surfaces are different from each other, this is further improved.

  In addition, this invention is not limited to said embodiment at all, Of course, it can change and implement variously in the range which does not deviate from the summary of this invention. For example, the following modifications can be given.

  The faucet body 3 of this embodiment is installed on the washstand, but is not limited to this. For example, the faucet body 3 may be installed in a kitchen sink. In this case, the connection destination of the branch pipe 10 Examples of faucet appliances (faucet equipment) that can be used include water purifiers and dishwashers.

  Although the branch stop cock 1 of this embodiment is provided on the downstream side of the water supply pipe 7, it can also be provided on the downstream side of the hot water supply pipe 4.

  The hot water supply pipe 4 and the water supply pipe 7 of this embodiment are of a type that rises from the floor as shown in FIG. 1, but are not limited to this, for example, a type in which both pipes 4 and 7 are taken forward from the wall surface. In this case, for example, the upstream side pipe connection port 11 of the main pipe 9 only needs to be provided toward the rear side, and a mounting screw for fixing the main pipe 9 to a wall surface (not shown). The part 44 (see FIG. 2 etc.) becomes unnecessary.

  The structure of the water stopcock 13 and the branch plug 34 of this form can be variously modified. For example, the structure of the water stopcock 13 is the same as that of the branch plug 34, or conversely, the structure of the branch plug 34 is stopped. The stopper 13 may be the same as the stopper 13, and the stopper plug 13 and the branch stopper 34, both of which are of no handle type, may be used as a type (handle type) to which the stopper handle and branch handle disclosed in Patent Document 1 are attached. Good.

  In this embodiment, the pipe connecting portion 33 faces the distal end side of the branch pipe 10 and the branch plug 34 (tip face of the plug body 35) faces upward. However, the present invention is not limited to this. It is good also as a structure where direction with 34 (tip surface of the plug main body 35) mutually switched.

  In this embodiment, the direction of the branch pipe 10 can be freely changed 360 ° around the axis of the cylindrical portion 23 of the main pipe 9, but the branch pipe 10 does not rotate more than 360 ° around the axis of the cylindrical portion 3. In this way, the branch pipe connected to the pipe connection portion 33 of the branch pipe 10 may be reliably prevented from being twisted.

  In this embodiment, water leakage from between the cylindrical portion 23 and the connecting cylindrical portion 24 is prevented by the two seal members 27 mounted on the cylindrical portion 23 side, but the sealing member is provided on the connecting cylindrical portion 24 side. May be provided, and other seal structures may be employed.

  In this embodiment, the retaining cylinder 31 is used to prevent the connecting cylinder portion 24 that is externally fitted to the tubular portion 23. However, the connecting cylinder section 24 is prevented from being detached by means other than the retaining member 31. For example, a pipe connected to the downstream side pipe connection port 12 of the main pipe 9 when the connecting cylinder part 24 externally fitted to the cylindrical part 23 tries to move in a direction to be removed from the cylindrical part 23. Etc. (target to be connected) abuts on the edge of the connecting cylinder part 24 to exert the function of preventing the connecting cylinder part 24 from being removed, and the leakage preventing member 31 may be omitted. it can.

  In this embodiment, the connecting tube portion 24 of the branch pipe 10 is held in contact with the holding portion 30 of the main pipe 9. For example, a separately provided retaining member 31 is provided at a position where the holding portion 30 is provided in the main pipe 9. It is possible to improve the turning performance (sliding performance) of the connecting cylinder part 24 by mounting the holding cylinder part 24 by the retaining member 31.

  In this embodiment, the outer diameter of the second annular projecting portion 26 is larger than the outer diameter of the first annular projecting portion 25 of the cylindrical portion 23, but both outer diameters may be the same.

  Needless to say, the above modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Branch water stopcock 9 Main pipe 10 Branch pipe 23 Cylindrical part 24 Connection cylinder part 33 Pipe connection part 34 Branch plug 43 Branch port

Claims (1)

A main pipe having a cylindrical portion, and a branch port provided in the cylindrical portion;
A branch pipe connected to the main pipe,
The branch pipe is
A connecting cylinder part that is externally fitted to the cylindrical part and forms a communication space that communicates with the branch port with an outer wall surface of the cylindrical part;
An inner space having a pipe connecting portion communicating with the communication space,
A branch plug is attached to a portion between the connecting tube portion and the pipe connecting portion in the branch pipe,
The branch pipe in a state in which the connecting cylinder part is externally fitted to the cylindrical part is rotatable about the axis of the cylindrical part ,
A stop cock is attached to the main pipe,
The main pipe is provided with a partition wall that divides the main pipe into a space on the upstream side and a space on the downstream side of the water stop cock by the water stop cock,
The said branch port is a branch stop cock provided in the part which forms the space of the upstream side rather than the said stop cock in the said cylindrical part .

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