JP7255847B2 - Diversion faucet with saddle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a distribution faucet with a saddle for branching water flowing through a water pipe.

Patent Literature 1 describes a saddle-equipped faucet having a saddle-shaped saddle placed on a water pipe and a faucet fixed to the saddle. In the document, the saddle includes a tubular portion that overlaps the water intake hole of the water pipe. A female screw is provided on the inner peripheral surface of the cylindrical portion. The turnoff comprises a water inflow tube with external threads that screw into the internal threads. The inflow pipe is screwed into the cylindrical portion and communicates with the intake hole. Moreover, the water distribution valve has an outflow port that causes water from the inflow pipe to flow out in a direction that intersects the axis of the inflow pipe. A water supply pipe is connected to the outflow port. A water supply pipe connected to the outflow port extends in a direction intersecting the water pipe.

JP-A-2000-170982

The saddle-equipped faucet is buried in the ground together with the water pipe and the water supply pipe. Therefore, when the ground changes due to an earthquake or the like, external forces acting on the water pipes and the water supply pipes extending in directions intersecting each other may cause the faucet to rotate relative to the saddle.

Here, when fixing the water diversion plug to the saddle, the water diversion plug is screwed into the saddle through hole so that the water diversion plug and the saddle do not rotate relative to each other. Therefore, in the conventional branch faucet with a saddle, when an external force acts on the branch faucet with a saddle from the water pipe and the water supply pipe, the force cannot be released, and damage occurs to the branch faucet with a saddle. There is

SUMMARY OF THE INVENTION An object of the present invention is to provide a saddle-equipped faucet that can prevent breakage when an external force that rotates the faucet is applied.

In order to solve the above problems, the saddle-equipped water distribution valve of the present invention comprises a saddle having a saddle through-hole that overlaps with an intake hole provided in a water pipe, a cylindrical portion that is inserted into the saddle through-hole, and the saddle. an intermediate member provided with a fixing portion fixed to the pipe, an intermediate member provided with a female thread provided on the inner peripheral surface of the cylindrical portion, a water distribution valve provided with an inflow pipe communicating with the saddle through hole, and the saddle overlapping the water pipe a packing that contacts the water pipe and surrounds the water intake hole when the water pipe is opened, and the inflow pipe has a male thread that is screwed to the female thread and is screwed into the cylinder, and the packing is , when viewed from the axial direction of the inflow pipe, the outer peripheral edge of the saddle through hole of the threaded portion where the male screw and the female screw are screwed together, the cylindrical portion, and the saddle are overlapped.

In the present invention, the water distribution valve is fixed to the saddle by screwing the inflow pipe into the cylindrical portion of the intermediate member inserted into the saddle through hole. Therefore, compared to the conventional saddle-equipped faucet in which the inner wall surface of the saddle through-hole is internally threaded and the inflow pipe is screwed into the saddle through-hole when the faucet is fixed to the saddle, the outer diameter of the inflow pipe is Can be made smaller. Therefore, when a force that rotates the faucet about the axis of the inflow pipe is applied via a water supply pipe connected to the outflow port, the faucet rotates more than the conventional faucet with a saddle. Cheap. As a result, when an external force is applied to the saddle faucet, the faucet rotates to release the force. Therefore, it is possible to prevent damage to the saddle-equipped branch faucet. Also, the packing surrounding the water intake hole overlaps with the threaded portion where the male thread of the inflow pipe and the female thread of the tubular portion are screwed together. Therefore, it is possible to prevent or suppress the occurrence of water leakage from the threaded portion when the faucet rotates with respect to the intermediate member.

Further, according to the present invention, when the saddle is superimposed on the water pipe, the side on which the water pipe is positioned is defined as a first direction, and the side on which the saddle is positioned is defined as a second direction. and the predetermined position is a position at which the inflow pipe can be further screwed in the first direction . Therefore, when an external force is applied to the saddle water distribution valve, the water distribution valve can rotate in both the rotational direction of movement in the first direction and the rotational direction of movement in the second direction.

Further, according to the present invention, the inflow pipe has a projecting portion projecting in the first direction from the cylindrical portion at the predetermined position, the packing is attached to the projecting portion, and the It is characterized by being in contact with the entire surface of the end face in the first direction. Therefore, when viewed from the axial direction of the inflow pipe, it is easy to dispose the packing at a position where the threaded portion of the male thread of the inflow pipe and the female thread of the cylindrical portion of the intermediate member overlap. In addition, since the packing is supported on the outer peripheral side of the inflow pipe, the packing will not come off when the saddle-equipped distribution faucet is placed on the water pipe.

In the present invention, the projecting portion may be provided with an annular groove, and the packing may be provided with an annular fitting portion fitted into the annular groove. In this way, the packing makes it easy to water-stop the threaded portion between the male thread of the inflow pipe and the female thread of the cylindrical portion of the intermediate member.

In the present invention, an elastic ring-shaped sealing member may be provided between the inflow pipe and the tubular portion. In this way, water can be reliably stopped between the inflow pipe and the tubular portion.

In the present invention, the saddle includes a saddle-side female thread on the inner wall surface of the saddle through hole, the intermediate member includes an intermediate member-side male thread on the outer peripheral surface of the cylindrical portion that is screwed into the saddle-side female thread, and The fixing portion may be the intermediate member side male screw. In this way, it is easy to fix the intermediate member to the saddle.

In the present invention, a first adhesive that is applied to the fixing portion to bond the saddle and the intermediate member together, and a first adhesive that is applied to the threaded portion between the male screw and the female screw and is weaker than the first adhesive. and a second adhesive that bonds the faucet and the intermediate member with an adhesive force. In this way, the intermediate member and the saddle can be securely fixed. On the other hand, it is easy to rotate the faucet when an external force is applied.

In the present invention, the intermediate member has a flange portion extending outward from the cylindrical portion, the fixed portion is the flange portion, and the saddle is fixed to the outer peripheral side of the saddle through-hole. A saddle-side fixing portion may be provided. In this way, it is easy to fix the intermediate member to the saddle.

In the present invention, a rotation prevention mechanism for preventing relative rotation between the intermediate member and the water diversion valve is provided, and the rotation prevention mechanism includes an intermediate member-side locking portion provided on the intermediate member and the water diversion valve. Relative rotation between the intermediate member and the faucet is detachably engaged with the faucet-side engaging portion provided on the faucet, the intermediate member-side engaging portion, and the faucet-side engaging portion. and a locking member that prevents With this arrangement, when installing the branch faucet with a saddle for the water pipe and the water supply pipe, the locking member is locked to the intermediate member-side locking portion and the branch cock-side locking portion, and the intermediate member is and the faucet can be prevented from rotating relative to each other. In addition, when the faucet with a saddle is buried in the ground together with the water pipe and the faucet, if the locking member is removed from the intermediate member-side locking portion and the faucet-side locking portion, the saddle can be removed later. When an external force is applied to the faucet, the faucet rotates to release this force.

ADVANTAGE OF THE INVENTION According to this invention, when the external force which rotates the faucet about the axis of an inflow pipe is applied, a faucet can be rotated. Therefore, it is possible to prevent the saddle-equipped branch faucet from being damaged by an external force.

Fig. 2 is a plan view of the saddle-equipped distribution faucet of Example 1; FIG. 2 is an explanatory diagram of the saddle-equipped distribution faucet of Example 1; FIG. 10 is an explanatory diagram of a case where an external force is applied to the saddle-equipped branch faucet; FIG. 4 is an explanatory diagram of a saddle-equipped faucet of a modified example of Embodiment 1; Fig. 10 is a plan view of the saddle-equipped distribution faucet of Example 2; FIG. 10 is an explanatory diagram of the saddle-equipped distribution faucet of Example 2; FIG. 11 is an explanatory diagram of a saddle-equipped branch faucet of Example 3;

Below, with reference to drawings, the distribution faucet with a saddle of an embodiment of the present invention is explained.

(Example 1)
FIG. 1 is a plan view of a water divisor with a saddle of Example 1. FIG. FIG. 2 is an explanatory diagram of the saddle-equipped faucet of Example 1. FIG. In FIG. 2, the left side of the center line of the saddle-equipped faucet is an external view of the saddle-equipped faucet, and the right side is a partial sectional view.

As shown in FIG. 1 , the saddle-equipped branch faucet 1A is fixed to a water pipe 2 to branch water flowing through the water pipe 2 into a water supply pipe 3 . The water pipe 2 is made of metal or resin. The water pipe 2 is provided with a water intake hole for dividing water at a predetermined position in the direction of the pipe axis L0 of the water pipe 2 . The saddle-equipped branch faucet 1A is fixed at a position overlapping the water intake hole of the water pipe 2 . The saddle-equipped branch faucet 1A is buried in the ground together with the water pipe 2 and the water supply pipe 3. As shown in FIG.

As shown in FIG. 2, the saddle-equipped water distribution valve 1A includes a saddle 5 superimposed on the water pipe 2, a water distribution valve 6, an intermediate member 7 positioned between the saddle 5 and the water distribution valve 6, A packing 8 is provided. In addition, the saddle-equipped distribution faucet 1A includes a saddle fixture 11 located on the opposite side of the saddle 5 with the water pipe 2 interposed therebetween, and a saddle fastener 12 for fastening the saddle 5 and the saddle fixture 11 together. . The saddle 5 and the saddle fixture 11 are selected from a plurality of sizes and have a dedicated size that matches the diameter of the water pipe 2 .

Below, the saddle-equipped faucet 1A will be described based on the posture in which the saddle-equipped faucet 1A is placed on the water pipe 2 . Therefore, as shown in FIG. 2, the direction in which the saddle 5 and the water pipe 2 overlap is defined as the vertical direction Z. As shown in FIG. Also, when the saddle 5 is superimposed on the water pipe 2, the side where the water pipe 2 is located is Z1 (first direction), and the side where the saddle 5 is located is Z2 (second direction). Further, the direction along the pipe axis L0 of the water pipe 2 is defined as the front-rear direction Y of the saddle-equipped branch faucet 1A. A direction orthogonal to the up-down direction Z and the front-rear direction Y is defined as the left-right direction X of the saddle-equipped distribution faucet 1A.

The saddle 5 is a bronze casting. The saddle 5 includes a water distribution valve connecting portion 21 to which the water distribution valve 6 is attached via an intermediate member 7, and left and right saddles curved downward from the water distribution valve connection portion 21 toward one side and the other side in the left-right direction X. A pair of saddle curved portions 22 and a pair of left and right saddle flange portions 23 extending outward from lower end portions of the respective saddle curved portions 22 are provided.

The faucet connecting portion 21 includes a small-diameter tubular portion 25 and a large-diameter tubular portion 26 continuing from the small-diameter tubular portion 25 downward Z1. The inner diameter dimension of the large-diameter tubular portion 26 is larger than the inner diameter dimension of the small-diameter tubular portion 25 . Further, the outer diameter dimension of the large-diameter tubular portion 26 is larger than the outer diameter dimension of the small-diameter tubular portion 25 . The central hole of the small diameter tubular portion 25 and the central hole of the large diameter tubular portion 26 are saddle through holes 27 that penetrate the saddle 5 in the vertical direction Z. As shown in FIG. The saddle through hole 27 and the water intake hole 4 overlap in the vertical direction Z when the saddle 5 is superimposed on the water pipe 2 . The saddle through-hole 27 has a small-diameter inner peripheral surface 28 that is the inner peripheral surface of the small-diameter tubular portion 25 , a large-diameter inner peripheral surface 29 that is the inner peripheral surface of the large-diameter tubular portion 26 , and a small-diameter inner peripheral surface of the small-diameter tubular portion 25 . and an annular surface 30 connecting the surface 28 and the large-diameter inner peripheral surface 29 of the large-diameter cylindrical portion 26 . The annular surface 30 faces downward Z1. A saddle-side female thread 31 is provided on the inner peripheral surface of the small-diameter tubular portion 25 .

The pair of saddle curved portions 22 extend in the left-right direction X from the lower end portions of the large-diameter cylindrical portions 26, respectively. Each saddle curved portion 22 is plate-shaped and curved along the outer peripheral surface of the water pipe 2 . Each of the pair of saddle flange portions 23 is provided with a fastener through-hole 33 for inserting the saddle fastener 12 .

The intermediate member 7 is made of cast bronze or stainless steel. The intermediate member 7 includes a tubular portion 35 inserted into the saddle through hole 27 and a fixing portion 36 fixed to the saddle 5 . The cylindrical portion 35 has an annular projection 37 projecting outward from its upper end. An intermediate member side internal thread 38 (female thread) is provided on the inner peripheral surface of the cylindrical portion 35 . The pitch of the internal thread 38 on the intermediate member side is 1 mm to 2 mm. An intermediate member side male thread 39 is provided on the outer peripheral surface of the cylindrical portion 35 . The intermediate member side male thread 39 is screwed into the saddle side female thread 31 when the cylindrical portion 35 is inserted into the saddle through hole 27 . An intermediate member-side external thread 39 of the intermediate member 7 is a fixing portion 36 that is fixed to the saddle 5 .

When the intermediate member 7 is fixed to the saddle 5 , the lower end surface of the annular protrusion 37 of the tubular portion 35 abuts the upper end surface of the small diameter tubular portion 25 of the saddle 5 (the upper end surface of the water distribution valve connecting portion 21 ). The lower end surface of the tubular portion 35 is positioned at the same height as the annular surface 30 of the faucet connecting portion 21 of the saddle 5 .

The faucet 6 is a bronze casting. The water distribution valve 6 includes a water distribution valve main body 42 having an outflow port 41 for discharging water, and an inflow pipe 43 projecting downward Z1 from the water distribution valve main body 42 . Inside the faucet main body 42, a flow path (not shown) is provided to allow the outflow port 41 and the inflow pipe 43 to communicate with each other. The inflow pipe 43 has a faucet-side external thread 45 (male thread) that screws together with the intermediate member-side internal thread 38 on its outer peripheral surface. The pitch of the faucet side male screw 45 is 1 mm to 2 mm. The faucet 6 is attached to the saddle 5 via the intermediate member 7 by screwing the inflow pipe 43 into the cylindrical portion 35 of the intermediate member 7 . The axis L of the inflow pipe 43 screwed into the cylindrical portion 35 extends in the vertical direction Z. As shown in FIG.

The inflow pipe 43 is screwed into the tubular portion 35 to a predetermined position 43A and communicates with the saddle through hole 27 . The predetermined position 43A is a position where the inflow pipe 43 can be further screwed downward Z1. That is, when the inflow pipe 43 is screwed to a predetermined position 43A, a gap is provided in the up-down direction Z between the faucet body 42 of the faucet 6 and the intermediate member 7 . In other words, when the inflow pipe 43 is screwed to the predetermined position 43A, the faucet 6 and the intermediate member 7 are not in contact with each other in the vertical direction Z. As shown in FIG. The inflow pipe 43 has a protruding portion 47 that protrudes downward Z1 from the cylindrical portion 35 while being screwed into a predetermined position 43A. An annular groove 48 around the axis L is provided in the projecting portion 47 . The annular groove 48 is formed at a position adjacent to the lower side Z1 of the male thread 45 on the side of the distribution valve.

The outflow port 41 causes the water from the water pipe 2 to flow out in a direction intersecting with the axis L of the inflow pipe 43 . The outflow port 41 faces one side in the horizontal direction X perpendicular to the axis L of the inflow pipe 43 . The water supply pipe 3 is connected to the outflow port 41 .

The packing 8 is made of synthetic rubber or the like. The packing 8 has an annular shape. A cross-sectional shape obtained by cutting a portion of the packing 8 in the circumferential direction in the vertical direction Z is a rectangular shape elongated in the vertical direction Z as a whole. A packing annular groove 51 recessed toward the outer circumference is provided in the upper portion of the inner peripheral surface of the packing 8 . An inner peripheral end portion of the packing 8 above the packing annular groove 51 forms an annular fitting portion 52 that is fitted into the annular groove 48 of the inflow pipe 43 .

The packing 8 is attached to the projecting portion 47 of the inflow pipe 43 with the fitting portion 52 fitted into the annular groove 48 . Also, the packing 8 is in close contact with the outer peripheral surface of the inflow pipe 43 . Thereby, the packing 8 is supported on the outer peripheral side of the inflow pipe 43 . Therefore, when the saddle-equipped branch faucet 1A is placed on the water pipe 2, the packing 8 will not come off.

Here, when the packing 8 is attached to the projecting portion 47 , the upper surface of the packing 8 contacts the lower end surface of the cylindrical portion 35 of the intermediate member 7 . Also, the upper surface of the packing 8 contacts the annular surface 30 of the shunt plug connection portion 21 of the saddle 5 . The upper portion of the packing 8 is radially positioned between the large-diameter cylindrical portion 26 of the saddle 5 and the inflow pipe 43 . Therefore, when viewed from the direction of the axis L of the inflow pipe 43, the packing 8 includes a threaded portion 55 where the male thread of the inflow pipe 43 and the female thread of the cylindrical portion 35 of the intermediate member 7 are screwed together, and the cylindrical portion of the intermediate member 7. 35 and the opening edge 27a of the saddle through-hole 27 in the saddle 5 . A lower end portion of the packing 8 protrudes downward Z1 from the large-diameter tubular portion 26 .

Next, the saddle fixture 11 includes a fixture-side curved portion 56 that curves along the outer peripheral surface of the water pipe 2 and a pair of left and right fixture-side curved portions that protrude from both end portions of the fixture-side curved portion 56 in the left-right direction X. and a flange portion 57 . The fixture-side curved portion 56 is located on the opposite side of the saddle 5 from the faucet connection portion 21 and the saddle curved portion 22 with the water pipe 2 interposed therebetween. The fixture-side flange portion 57 faces the saddle flange portion 23 of the saddle 5 . The fixture-side flange portion 57 includes a fixture-side through hole 58 for inserting the saddle fastener 12 .

The saddle 5 and the saddle fixture 11 are fastened by a saddle fastener 12 . Saddle fastener 12 includes bolt 61 and nut 62 . The bolt 61 passes upward Z2 through the fastener through-hole 33 of the saddle flange portion 23 of the saddle 5 via the fastener through-hole 33 of the fixture-side flange portion 57 . The nut 62 is screwed onto the bolt 61 from above Z2 of the saddle flange portion 23 . When the saddle 5 and the saddle fixture 11 are fastened with the saddle fastener 12, the saddle-equipped distribution faucet 1A is fixed to the water pipe 2. As shown in FIG.

When the saddle-equipped distribution faucet 1A is fixed to the water pipe 2 and viewed from the vertical direction Z, the water intake hole 4 of the water pipe 2 and the saddle through hole 27 of the saddle 5 overlap. Therefore, the inflow pipe 43 of the water distribution valve 6 fixed to the saddle 5 via the intermediate member 7 and the water intake hole 4 communicate with each other. Therefore, by fixing the saddle-equipped distribution tap 1A to the water pipe 2, the water flowing through the water pipe 2 can be branched to the water supply pipe 3.

Here, the packing 8 surrounds the water intake hole 4 in contact with the water pipe 2 when the saddle 5 is superimposed on the water pipe 2 . Also, when the saddle-equipped water distribution faucet 1A is fixed to the water pipe 2, the packing 8 is provided between the intermediate member 7 and the water distribution pipe 2 and between the water distribution faucet connecting portion 21 of the saddle 5 and the water distribution pipe 2. , is compressed. Here, when viewed from the direction of the axis L of the inflow pipe 43, the packing 8 includes a threaded portion 55 where the faucet side male thread 45 and the intermediate member side female thread 38 are screwed together, the cylindrical portion 35 of the intermediate member 7, It overlaps with the threaded portion 60 between the intermediate member side male thread 39 and the saddle side female thread 31 and the opening edge 27 a of the saddle through hole 27 in the saddle 5 . Therefore, the water flowing from the water distribution pipe 2 to the water supply pipe 3 via the water distribution valve 6 does not leak from the water distribution valve with a saddle 1A.

(Effect)
FIG. 3 is an explanatory diagram of a case where an external force acts on the saddle-equipped branch faucet 1A. The saddle-equipped branch faucet 1A is buried in the ground together with the water pipe 2 and the water supply pipe 3. As shown in FIG. Therefore, if the ground changes due to an earthquake or the like, external force acting on the water pipe 2 and the water supply pipe 3 extending in directions intersecting each other may cause the water distribution valve 6 to rotate with respect to the saddle 5 . As an example, when ground fluctuations are large, as shown in FIG. 3, the faucet 6 is moved from the angular position at the time of burial shown in FIG. ° rotation is assumed.

In such a case, in this example, the faucet 6 is fixed to the saddle 5 by screwing the inflow pipe 43 into the cylindrical portion 35 of the intermediate member 7 inserted into the saddle through hole 27 . Therefore, compared to the case where the inner wall surface of the saddle through-hole 27 is provided with a female thread and the inflow pipe 43 is screwed into the saddle through-hole 27 when fixing the faucet 6 to the saddle 5, the outer diameter of the inflow pipe 43 is reduced. Can be made smaller. As a result, when a force is applied to rotate the faucet 6 about the axis L of the inflow pipe 43 via the water supply pipe 3 connected to the outflow port 41, the faucet 6 can be easily rotated. Therefore, when an external force is applied to the saddle-equipped faucet 1A, the faucet 6 rotates to release this force. Therefore, it is possible to prevent the saddle-equipped distribution tap 1A from being damaged.

Further, the inflow pipe 43 is screwed into the cylindrical portion 35 to a predetermined position 43A, and the predetermined position 43A is a position where the inflow pipe 43 can be further screwed in the first direction. Therefore, when an external force is applied to the saddle-equipped faucet 1A, the faucet 6 can rotate both in the first direction and in the second direction. That is, when an external force is applied to the saddle-equipped water distribution valve 1A, the water distribution valve 6 can be rotated to one side and the other side around the axis L from the angular position at the time of embedding.

Furthermore, the packing 8 overlaps the threaded portion 55 where the male thread of the inflow pipe 43 and the female thread of the cylindrical portion 35 are screwed together. Therefore, the packing 8 can seal off the threaded portion 55 between the male thread of the inflow pipe 43 and the female thread of the cylindrical portion 35 of the intermediate member 7 . Therefore, even when the faucet 6 rotates with respect to the saddle 5, the occurrence of water leakage can be suppressed. Here, the pitch of the faucet side male thread 45, that is, the pitch of the intermediate member side female thread 38, is 1 mm to 2 mm. Therefore, even if the faucet 6 is rotated 45 degrees to one side or the other from the angle position at the time of embedding, the movement of the faucet 6 in the direction of the axis L is 0.5 mm or less, which is very small. Therefore, even when the faucet 6 rotates with respect to the saddle 5, water leakage can be prevented.

(Modification 1)
Here, as indicated by a two-dot chain line in FIG. 1, a first adhesive 63 is applied to the threaded portion 60 between the intermediate member side male thread 39 and the saddle side female thread 31 to bond the intermediate member 7 and the saddle 5 together. In addition to being provided, a second adhesive 64 can be provided that is applied to the threaded portion 55 between the faucet side male thread 45 and the intermediate member side female thread 38 to bond the faucet 6 and the saddle 5 together. The second adhesive 64 has a weaker adhesive strength than the first adhesive 63 .

By doing so, the intermediate member 7 and the saddle 5 can be securely fixed. On the other hand, when an external force is applied to the saddle-equipped faucet 1A, the faucet 6 rotates to release this force. Therefore, it is possible to prevent the saddle-equipped distribution tap 1A from being damaged. Note that the second adhesive 64 may be omitted when the first adhesive 63 is used.

In addition, there may be an elastic annular sealing member arranged between the inflow pipe 43 of the faucet 6 and the tubular portion 35 of the intermediate member 7 . FIG. 4 is an explanatory diagram of a modified saddle-equipped faucet having an annular seal member. Since the saddle-equipped faucet 1B of the modified example has a configuration corresponding to that of the saddle-equipped faucet 1A of the first embodiment, the annular seal member 65 and the arrangement of the annular seal member 65 will be explained, and other explanations will be given. are omitted.

As shown in FIG. 4 , in this example, the intermediate member 7 has an annular notch 66 at the upper end portion of the inner peripheral surface of the cylindrical portion 35 . The notch 66 includes a notch annular wall 66a facing the inner circumference and a notch annular surface 66b extending from the lower end of the notch annular wall 66a to the inner circumference. The notch annular surface 66b faces upward Z2 (second direction). A second annular groove 67 is provided on the outer peripheral surface of the water distribution valve 6 at a position adjacent to the upper side Z2 of the water distribution valve side male thread 45 . A resilient annular seal member 65 is attached to the annular groove 48 . The annular seal member 65 is an elastic member such as an O-ring. When the O-ring is attached to the second annular groove 67 , the outer peripheral portion of the O-ring protrudes further to the outer peripheral side than the male screw 45 on the side of the faucet.

When the inflow pipe 43 is screwed into the cylindrical portion 35 to a predetermined position 43A, the annular seal member 65 is such that the male thread 45 on the side of the faucet and the female thread 38 on the intermediate member side are aligned when viewed from the vertical direction Z. It overlaps with the threaded portion 55 to be threaded. Also, the annular seal member 65 is radially compressed between the inflow pipe 43 and the intermediate member 7 . That is, the annular seal member 65 is sandwiched between the bottom surface (the wall surface on the inner peripheral side) of the second annular groove 67 in the inflow pipe 43 and the notch annular wall 66a in the intermediate member 7, compressed to

In this example, the annular seal member 65 and the packing 8 seal the threaded portion 55 between the faucet-side male thread 45 and the intermediate member-side female thread 38 . Therefore, even when the faucet 6 rotates with respect to the intermediate member 7, water leakage does not occur.

(Example 2)
FIG. 5 is a plan view of the saddle-equipped faucet of Example 2. FIG. FIG. 6 is an explanatory diagram of the saddle-equipped faucet of the second embodiment. In FIG. 6, the left side of the center line of the saddle-equipped faucet is an external view of the saddle-equipped faucet, and the right side is a partial sectional view. A saddle-equipped faucet 1C of this example has a structure corresponding to that of the saddle-equipped faucet 1C of the first embodiment. Therefore, the same reference numerals are given to the corresponding parts for explanation.

As shown in FIGS. 5 and 6, the saddle-equipped water distribution valve 1C includes a saddle 5 superimposed on the water pipe 2, a water distribution valve 6, and an intermediate member positioned between the saddle 5 and the water distribution valve 6. 7, an annular seal member 65, and a packing 8. In addition, the saddle-equipped branch faucet 1C includes a saddle fastener 11 located on the opposite side of the saddle 5 with the water pipe 2 interposed therebetween, and a saddle fastener 12 for fastening the saddle 5 and the saddle fastener 11 together. .

The saddle 5 is a bronze casting. As shown in FIG. 6, the saddle 5 includes a water distribution cock connecting portion 21 to which the water distribution cock 6 is attached via an intermediate member 7, and a water distribution cock connecting portion 21 extending from the water distribution cock connection portion 21 toward one side and the other side in the left-right direction X. A pair of left and right saddle curved portions 22 curved downward and a pair of left and right saddle flange portions 23 extending outward from the lower end portions of the respective saddle curved portions 22 are provided.

As shown in FIG. 5, the shape of the water distribution valve connecting portion 21 when viewed from the up-down direction Z is a square shape. As shown in FIG. 6, the faucet connector 21 has a circular saddle through-hole 27 penetrating in the vertical direction Z at its center. The saddle through hole 27 has a circular upper inner peripheral surface 71, a circular lower inner peripheral surface 72 having an inner diameter dimension larger than that of the upper inner peripheral surface 71 below Z1 of the upper inner peripheral surface 71, and an upper inner peripheral surface 71. and an annular surface 73 connecting the lower inner peripheral surface 72 . That is, the faucet connecting portion 21 includes a saddle through hole 27 defined by an upper inner peripheral surface 71 , a lower inner peripheral surface 72 and an annular surface 73 . The annular surface 73 faces downward Z1. Here, the upper end surface of the water distribution valve connection portion 21, that is, the portion of the water distribution valve connection portion 21 located on the outer peripheral side of the saddle through hole 27 is the saddle side fixing portion 74 to which the intermediate member 7 is fixed.

A pair of saddle curved portions 22 extend in the left-right direction X from the lower end portion of the faucet connecting portion 21 . Each saddle curved portion 22 is plate-shaped and curved along the outer peripheral surface of the water pipe 2 . Each of the pair of saddle flange portions 23 is provided with a fastener through-hole 33 for inserting the saddle fastener 12 .

The intermediate member 7 is made of cast bronze or stainless steel. The intermediate member 7 includes a tubular portion 35 inserted into the saddle through hole 27, a square-shaped flange portion 75 extending outward from the upper end portion of the tubular portion 35, and an upward Z2 from the upper surfaces of the tubular portion 35 and the flange portion 75. and a projecting circular annular projection 76 . A flange portion 75 of the intermediate member 7 is a fixed portion 36 fixed to the saddle 5 . An intermediate member side internal thread 38 (female thread) is provided on the inner peripheral surface of the cylindrical portion 35 . When viewed in the vertical direction Z, the annular protruding portion 76 surrounds the intermediate member side internal thread 38 from the outer peripheral side. The cylindrical portion 35 has an annular surface 35 a on the inner peripheral side of the annular projecting portion 76 .

The intermediate member 7 is fixed to the saddle 5 with bolts 78 with the flange portion 75 placed on the upper surface (saddle-side fixing portion 74 ) of the faucet connecting portion 21 of the saddle 5 . When the intermediate member 7 is fixed to the saddle 5 , the lower end surface of the cylindrical portion 35 is at the same height as the annular surface 73 of the faucet connecting portion 21 .

The water distribution valve 6 includes a water distribution valve main body 42 having an outflow port 41 for discharging water, and an inflow pipe 43 projecting downward Z1 from the water distribution valve main body 42 . Inside the faucet main body 42, a flow path (not shown) is provided to allow the outflow port 41 and the inflow pipe 43 to communicate with each other. The inflow pipe 43 has a faucet-side external thread 45 (male thread) that screws together with the intermediate member-side internal thread 38 on its outer peripheral surface. The pitch of the faucet side male screw 45 is 1 mm to 2 mm. Moreover, the water diversion valve 6 includes an upper annular groove 80 (second annular groove) at a position adjacent to the upper side Z2 of the water diversion valve side male thread 45 on the outer peripheral surface of the inflow pipe 43 . A resilient annular seal member 65 is attached to the annular groove 48 . The annular sealing member 65 is, for example, an O-ring. When the O-ring is attached to the upper annular groove 80 , the outer peripheral portion of the O-ring protrudes further to the outer peripheral side than the faucet-side male thread 45 .

The faucet 6 is attached to the saddle 5 by screwing the inflow pipe 43 into the tubular portion 35 of the intermediate member 7 . The axis L of the inflow pipe 43 extends in the vertical direction Z when the inflow pipe 43 is screwed into the cylindrical portion 35 .

The inflow pipe 43 is screwed into the cylindrical portion 35 to a predetermined position 43A. The predetermined position 43A is a position where the inflow pipe 43 can be further screwed downward Z1. The inflow pipe 43 has a protruding portion 47 that protrudes downward Z1 from the cylindrical portion 35 while being screwed into a predetermined position 43A. An annular groove 48 around the axis L is provided in the projecting portion 47 . The annular groove 48 is formed at a position adjacent to the lower side Z1 of the male thread 45 on the side of the distribution valve.

In addition, when the inflow pipe 43 is screwed to the predetermined position 43A, the annular seal member 65 is such that, when viewed from the vertical direction Z, the faucet side male thread 45 and the intermediate member side female thread 38 are screwed together. It overlaps with the threaded portion 55 to be engaged. Also, the annular seal member 65 is radially compressed between the inflow pipe 43 and the intermediate member 7 . That is, the annular seal member 65 is sandwiched between the bottom surface (the wall surface on the inner peripheral side) of the upper annular groove 80 in the inflow pipe 43 and the annular projecting portion 76 in the intermediate member 7 and is compressed in the radial direction. .

The outflow port 41 causes the water from the water pipe 2 to flow out in a direction intersecting with the axis L of the inflow pipe 43 . In this example, the outflow port 41 faces in a direction perpendicular to the axis L of the inflow pipe 43 . The water supply pipe 3 is connected to the outflow port 41 .

The packing 8 has an annular shape and is made of synthetic rubber or the like. A cross-sectional shape obtained by cutting a portion of the packing 8 in the circumferential direction in the vertical direction Z is a rectangular shape elongated in the vertical direction Z as a whole. A packing annular groove 51 recessed toward the outer circumference is provided in the upper portion of the inner peripheral surface of the packing 8 . An inner peripheral end portion of the packing 8 above the packing annular groove 51 forms an annular fitting portion 52 that is fitted into the annular groove 48 of the inflow pipe 43 .

The packing 8 is attached to the projecting portion 47 of the inflow pipe 43 with the fitting portion 52 fitted into the annular groove 48 . Also, the packing 8 is in close contact with the outer peripheral surface of the inflow pipe 43 . Thereby, the packing 8 is supported on the outer peripheral side of the inflow pipe 43 . Therefore, when the saddle-equipped branch faucet 1C is placed on the water pipe 2, the packing 8 will not come off.

Here, when the packing 8 is attached to the projecting portion 47 , the upper surface of the packing 8 contacts the lower end surface of the cylindrical portion 35 of the intermediate member 7 . Also, the upper surface of the packing 8 contacts the annular surface 73 of the shunt plug connection portion 21 of the saddle 5 . The upper portion of the packing 8 is radially positioned between the lower inner peripheral surface 72 of the saddle 5 and the inflow pipe 43 . Therefore, when viewed from the direction of the axis L of the inflow pipe 43, the packing 8 includes a threaded portion 55 where the male thread of the inflow pipe 43 and the female thread of the cylindrical portion 35 of the intermediate member 7 are screwed together, and the cylindrical portion of the intermediate member 7. 35 and the opening edge 27a of the saddle through-hole 27 in the saddle 5 . A lower end portion of the packing 8 protrudes downward Z<b>1 from the water distribution valve connecting portion 21 .

Next, the saddle fixture 11 includes a fixture-side curved portion 56 that curves along the outer peripheral surface of the water pipe 2 and a pair of left and right fixture-side curved portions that protrude from both end portions of the fixture-side curved portion 56 in the left-right direction X. and a flange portion 57 . The fixture-side curved portion 56 is located on the opposite side of the saddle 5 from the faucet connection portion 21 and the saddle curved portion 22 with the water pipe 2 interposed therebetween. The fixture-side flange portion 57 faces the saddle flange portion 23 of the saddle 5 . The fixture-side flange portion 57 includes a fixture-side through hole 58 for inserting the saddle fastener 12 .

The saddle 5 and the saddle fixture 11 are fastened by a saddle fastener 12 . Saddle fastener 12 includes bolt 61 and nut 62 . The bolt 61 passes upward Z2 through the fastener through-hole 33 of the saddle flange portion 23 of the saddle 5 via the fastener through-hole 33 of the fixture-side flange portion 57 . The nut 62 is screwed onto the bolt 61 from above Z2 of the saddle flange portion 23 . When the saddle 5 and the saddle fixture 11 are fastened with the saddle fastener 12, the saddle-equipped distribution faucet 1A is fixed to the water pipe 2. As shown in FIG.

When the saddle-equipped branch faucet 1C is fixed to the water pipe 2 and viewed from the vertical direction Z, the water intake hole 4 of the water pipe 2 and the saddle through hole 27 of the saddle 5 overlap. Therefore, the inflow pipe 43 of the faucet 6 fixed to the saddle 5 and the water intake hole 4 communicate with each other through the intermediate member 7 . Therefore, by fixing the saddle-attached distribution tap 1</b>C to the water pipe 2 , the water flowing through the water pipe 2 can be branched to the water supply pipe 3 .

Here, the packing 8 surrounds the water intake hole 4 in contact with the water pipe 2 when the saddle 5 is superimposed on the water pipe 2 . In addition, when the saddle-equipped water distribution faucet 1C is fixed to the water pipe 2, the packing 8 is provided between the intermediate member 7 and the water distribution pipe 2 and between the water distribution faucet connecting portion 21 of the saddle 5 and the water distribution pipe 2. In between, it is in a compressed state. Here, when viewed from the direction of the axis L of the inflow pipe 43, the packing 8 includes a threaded portion 55 where the faucet side male thread 45 and the intermediate member side female thread 38 are screwed together, the cylindrical portion 35 of the intermediate member 7, and the opening edge 27 a of the saddle through-hole 27 in the saddle 5 . Therefore, the water flowing from the water distribution pipe 2 to the water supply pipe 3 via the water distribution pipe 6 does not leak from the water distribution pipe 1C with the saddle. Further, in this example, the annular seal member 65 and the packing 8 seal off the threaded portion 55 between the faucet side male thread 45 and the intermediate member side female thread 38 . Therefore, even when the faucet 6 rotates with respect to the saddle 5, the occurrence of water leakage can be reliably prevented.

In this example as well, when the water distribution pipe 2 and the water supply pipe 3 extending in directions intersecting each other are to be rotated with respect to the saddle 5 by an external force, the water distribution valve 6 is rotated. , can escape this force. Therefore, it is possible to prevent the saddle-equipped branch faucet 1C from being damaged.

Note that, in this example, the annular seal member 65 can be omitted.

(Example 3)
The saddle-equipped faucets 1A, 1B, and 1C may have a rotation prevention mechanism that prevents the intermediate member 7 and the faucet 6 from rotating relative to each other. FIG. 7(a) is a plan view of a saddle-equipped water distribution faucet of Example 3, and FIG. 7(b) is an explanatory diagram of Example 3 of the saddle-equipped distribution faucet. The saddle-equipped faucet 1D of this embodiment has the same structure as the saddle-equipped faucet 1A of the first embodiment except for the anti-rotation mechanism 81. As shown in FIG. Therefore, only the anti-rotation mechanism 81 will be described, and other descriptions will be omitted. Also, in FIG. 7, illustration of the saddle fixture 11 is omitted.

As shown in FIG. 7, the anti-rotation mechanism 81 includes an intermediate member-side engaging portion 82 provided on the intermediate member 7, a faucet-side engaging portion 83 provided on the faucet 6, and an intermediate member-side engaging portion 83 provided on the faucet 6. A locking member 84 is detachably locked to the locking portion 82 and the faucet-side locking portion 83 to prevent relative rotation between the intermediate member 7 and the faucet 6 .

The faucet-side locking portion 83 includes two projections 85 protruding parallel to the direction perpendicular to the axis L of the inflow pipe 43 from the lower end portion of the faucet main body 42 . The two protrusions 85 protrude in the front-rear direction with the outflow port facing one side in the left-right direction. The intermediate member-side locking portion 82 is a locking hole 86 provided in the upper surface of the intermediate member 7 . The gap between the two protrusions 85 and the locking hole 86 overlap when viewed from above and below. The locking member 84 has a large-diameter shaft portion 84a and a small-diameter shaft portion 84b having an outer diameter smaller than that of the large-diameter shaft portion 84a in this order from top to bottom. The large-diameter shaft portion 84 a can be detachably inserted between the two protrusions 85 . The small-diameter shaft portion 84b can be detachably inserted into the locking hole 86. As shown in FIG.

In this example, when installing the branch faucet 1D with a saddle for the water distribution pipe 2 and the water supply pipe 3, the locking member 84 is locked to the intermediate member side locking portion 82 and the water distribution cock side locking portion 83. As a result, the intermediate member 7 and the faucet 6 are prevented from rotating relative to each other. Further, when burying the saddle-equipped water distribution valve 1C together with the water pipe 2 and the water distribution valve 6 in the ground, the locking member 84 is removed from the intermediate member-side locking portion 82 and the water distribution valve-side locking portion 83. . Therefore, when an external force is applied to the branch faucet 1C with a saddle buried in the ground, the branch faucet 6 rotates and the force can be released. Therefore, it is possible to prevent the saddle-equipped branch faucet 1C from being damaged.

In addition, if the packing 8 is fitted in the inflow pipe 43 and adheres tightly to the outer peripheral surface of the inflow pipe 43 , the threaded portion 55 can be water-stopped. Therefore, the packing annular groove 51 of the inflow pipe 43 and the fitting portion 52 of the packing 8 may be omitted.

1A, 1B, 1C, 1D... branch faucet with saddle, 2... water pipe, 3... water supply pipe, 4... water intake hole, 5... saddle, 6... branch faucet, 7... intermediate member, 8... packing, 11... Saddle fixture 12... Saddle fastener 21... Minor faucet connection part 22... Saddle curved part 23... Saddle flange part 25... Small diameter tubular part 26... Large diameter tubular part 27... Saddle through hole 27a ... opening edge of the saddle through-hole in the saddle, 28 ... small-diameter inner peripheral surface, 29 ... large-diameter inner peripheral surface, 30 ... annular surface, 33 ... fastener through-hole, 35 ... cylindrical portion, 35a ... annular surface, 36 ... fixing Part 37... Annular protrusion 41... Outlet 42... Diverting valve main body 43... Inflow pipe 43A... Predetermined position of inflow pipe 47... Protrusion 48... Annular groove
51... Packing annular groove, 52... Fitting portion, 55... Threaded portion, 56... Fixing tool side curved portion, 57... Fixing tool side flange portion, 58... Fixing part side through hole, 60... Threaded portion, 61... Bolt , 62...Nut 63...First adhesive 64...Second adhesive 65...Annular sealing member 66...Notch 66a...Notch annular wall 66b...Notch annular surface 67...Second 2 annular groove 71 upper inner peripheral surface 72 lower inner peripheral surface 73 annular surface 74 saddle side fixing portion 75 flange portion 76 annular projecting portion 78 bolt 80 upper side Annular groove 81 Anti-rotation mechanism 82 Intermediate member side locking portion 83 Distributor faucet side locking portion 84 Locking member 84a Large diameter shaft portion 84b Small diameter shaft portion 85 Projection , 86 ... locking holes.

Claims (7)

a saddle provided with a saddle through-hole that overlaps the water intake hole provided in the water pipe;
an intermediate member including a cylindrical portion inserted into the saddle through-hole, a fixing portion fixed to the saddle, and a female thread provided on an inner peripheral surface of the cylindrical portion;
a water distribution valve provided with an inflow pipe communicating with the saddle through-hole;
a packing that surrounds the water intake hole in contact with the water pipe when the saddle is superimposed on the water pipe;
The inflow pipe has a male thread that engages with the female thread and is screwed into the cylinder,
When the saddle is superimposed on the water pipe, the side where the water pipe is located is the first direction, and the side where the saddle is located is the second direction,
The inflow pipe is screwed into the cylindrical portion to a predetermined position, and has a protruding portion that protrudes from the cylindrical portion in the first direction at the predetermined position,
the predetermined position is a position where the inflow pipe can be further screwed in the first direction;
The packing is attached to the protruding portion, and when viewed from the axial direction of the inflow pipe, a threaded portion where the male thread and the female thread are screwed together, the cylindrical portion, and the saddle penetration of the saddle. A faucet with a saddle, wherein the faucet with a saddle overlaps with the outer peripheral edge of the hole and is in contact with the entire surface of the end face of the cylindrical portion in the first direction . The projecting portion is provided with an annular groove,
2. The saddle-equipped branch faucet according to claim 1 , wherein the packing has an annular fitting portion fitted into the annular groove. 3. The saddle-equipped branch faucet according to claim 1, further comprising an elastic annular sealing member disposed between said inflow pipe and said cylindrical portion. The saddle has a saddle-side female thread on the inner wall surface of the saddle through hole,
The intermediate member has an intermediate member-side male thread screwed into the saddle-side female thread on the outer peripheral surface of the cylindrical portion,
The saddle-equipped distribution faucet according to any one of claims 1 to 3 , wherein the fixing portion is a male screw on the intermediate member side. a first adhesive that is applied to the fixing portion and adheres the saddle and the intermediate member;
a second adhesive that is applied to the threaded portion between the male thread and the female thread to bond the faucet and the intermediate member with a weaker adhesive force than the first adhesive;
The saddle-equipped distribution faucet according to claim 4 , characterized in that it has a The intermediate member has a flange portion that extends outward from the tubular portion,
The fixed portion is the flange portion,
The saddle-equipped water faucet according to any one of claims 1 to 3 , wherein the saddle includes a saddle-side fixing portion to which the flange portion is fixed on an outer peripheral side of the saddle through hole. . having a rotation prevention mechanism that prevents relative rotation between the intermediate member and the faucet;
The anti-rotation mechanism includes an intermediate member-side locking portion provided on the intermediate member, a faucet-side locking portion provided on the faucet, the intermediate member-side locking portion, and the faucet. and a locking member detachably locked to the side locking portion to prevent relative rotation between the intermediate member and the faucet. Section faucet with saddle.

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