JP6170306B2 - Saddle tap with saddle - Google Patents

Description

  The present invention relates to a water faucet with a saddle attached to a water pipe.

  The water faucet with a saddle is attached to a water pipe when, for example, a water supply pipe is branched from a water pipe (water main) to a home or business office. The saddle-equipped water faucet includes a saddle portion that is fixed so as to straddle the water pipe, and a body portion that is located outside the diameter from the saddle portion on the basis of the water pipe and to which a water supply pipe is connected. . As an example, there is a “water faucet with saddle” described in Patent Document 1.

  In the “water faucet with saddle” described in Patent Document 1, the saddle portion and the trunk portion are flange-connected. The saddle portion side flange and the trunk portion side flange are fixed by a bolt as a fixing member passing therethrough. The flange fixing bolts described in Patent Document 1 are arranged so that four bolts are equidistantly aligned with the four corners of the square in a plan view. Thereby, a trunk | drum can be fixed to the arbitrary directions of a 90 degree unit with respect to a saddle part.

  However, when a large number of bolts are used as described above (four), since the size of the saddle portion is determined by the arrangement of the bolts, it is constrained to form a compact water faucet with a saddle. There is also room for reducing the cost of manufacturing a water faucet with a saddle.

Japanese Patent No. 3710625

  Accordingly, an object of the present invention is to provide a saddle-equipped water faucet that is compact and can reduce manufacturing costs.

The present invention relates to a saddle-equipped water faucet that is attached so as to straddle a water pipe in order to branch a water flow, a saddle part that is attached to the water pipe, and a body part that is located outside the diameter from the saddle part on the basis of the water pipe And the saddle portion and the body portion have a water diversion channel formed on a side surface of the water pipe and capable of passing a water flow from a through hole for diversion, and the saddle portion The trunk is a water faucet with a saddle, which is fixed by two fixing members at positions facing each other across the water diversion channel.

  According to the said structure, the said saddle part and the said trunk | drum can be fixed with two fixing members which pinch | interpose a water diversion flow path. For this reason, what is necessary is just to form the part which supports the said fixing member by the part corresponding to a fixing member in the said saddle part and the said trunk | drum. Therefore, the dimensions of the saddle portion and the body portion can be made smaller than when a large number of fixing members are used. And the material cost of the water faucet with a saddle can be saved as much as the size can be reduced. In addition, since the fixing member is fixed across the water diversion channel, the saddle portion and the body portion can be uniformly connected. Therefore, the water leak which arises between a saddle part and a trunk | drum by nonuniform coupling | bonding can be suppressed.

  Further, a bolt is used as the fixing member, and the saddle portion and the body portion include a flange portion to which the two bolts are attached, and the saddle portion side flange portion or the body portion side flange portion. The abutment surface has a diagonal distance perpendicular to the line connecting the two bolts when viewed from the outside of the water pipe standard so that the saddle portion and the body portion overlap. It can be formed in a shape smaller than the diagonal distance in the direction along.

  According to the said structure, the contact surface of each flange part can be formed in the shape which has an area which can attach the said 2 volt | bolt. Therefore, the dimension of each flange part can be made smaller than the case where many bolts are used. Moreover, when the contact surface has the above-described shape, both ends of the contact surface can be narrowed down, and the size can be reduced. On the other hand, a sufficient area for forming the water diversion channel can be secured at the center of the contact surface.

  Further, the direction orthogonal to the line connecting the two bolts can be a direction along the axial direction of the water pipe. According to this configuration, the direction along the diagonal distance on the smaller side of the shape can coincide with the width direction of the saddle portion. For this reason, the width dimension of a saddle part can be made small.

  The two bolts have a head portion located on the water pipe side, a screw portion located on the trunk portion side, and a hole into which the screw portion is screwed in the flange portion on the trunk portion side. It is a bottom hole, The front-end | tip of the said screw part shall be located in the said trunk | drum. According to this configuration, since the screw part of the bolt is not exposed from the body part, the material cost of the water faucet with a saddle can be saved as described above, and the durability of the saddle can be improved by suppressing the corrosion of the bolt. This can be advantageous in terms of the maintenance cost of the attached faucet.

  According to the present invention, the dimensions of the saddle portion and the body portion can be made smaller than when a large number of bolts are used. And because of the small size, the material cost of the water faucet with saddle can be saved. Therefore, it is possible to provide a saddle-equipped water faucet that is compact and has reduced manufacturing costs.

FIG. 1A is a partial cross-sectional view on the front side of a water faucet with a saddle according to an embodiment of the present invention, and FIG. 1B is a partial cross-sectional view on the right side surface side. 2A is a plan view of a saddle body according to an embodiment of the present invention, FIG. 2B is a half sectional view of the front side of the saddle body, and FIG. 2C is a bottom view of the saddle body. is there. 3A is a plan view of a saddle packing according to an embodiment of the present invention, FIG. 3B is a half sectional view of the front side of the saddle packing, FIG. 3C is a bottom view of the saddle packing, FIG. 3D is a half sectional view of the right side surface of the saddle packing. FIG. 4A is a partial cross-sectional view on the front side showing a part of the body part according to one embodiment of the present invention, and FIG. 4B is a bottom view showing a part of the body part.

  First, the present invention will be described by taking up one embodiment. The expression of the direction in the following depends on the direction in the case where the saddle-equipped water faucet is installed as shown in FIG. The direction in which the pipe extends is referred to as “front-rear direction”. Needless to say, the present invention is not limited to the embodiment in the direction described below.

  The water faucet with saddle 1 according to this embodiment includes a saddle portion 2 and a body portion 3. The saddle portion 2 is composed of a saddle body 21 and a band portion 22, both of which are made of cast iron, and are attached to a water pipe (water main pipe) P that is a circular pipe using a mounting bolt 23 a and a mounting nut 23 b. Fixed. The saddle body 21 and the band portion 22 are symmetrical in the front-rear direction and the left-right direction. The body portion 3 is coupled to the saddle portion 2 by fastening of a fixing bolt 5 that is a fixing member, and is located outside the diameter (upward in the present embodiment) with respect to the water pipe of the saddle portion 2.

  The saddle body 21 can cover the through hole of the water pipe P in which a through hole (not shown) for water separation is formed on the side surface, and is fixed so as to straddle the water pipe P. As shown in FIGS. 2A to 2C, the saddle body 21 includes a curved portion 211, a body receiving portion 212, and a bolt attachment piece 213. When the saddle-equipped water faucet 1 is attached to the running water pipe P, a drilling operation for forming a through hole in the water pipe P after the saddle body 21 is fixed to the water pipe P is performed.

  The curved portion 211 is positioned along the upper side surface of the water pipe P in a state where the saddle body 21 is fixed to the water pipe P. The inner surface 211a of the curved portion 211 has a curvature corresponding to the radius of the side surface (outer peripheral surface) of the water pipe P. A bolt mounting piece 213 protrudes from the end of the curved portion 211 to the left and right sides. The bolt mounting piece 213 includes a bolt through hole 213a through which the mounting bolt 23a passes.

  The torso receiving part 212 has a substantially rhombus-shaped space in the bottom view, and the saddle packing 4 is disposed in this space. The upper part of the trunk receiving part 212 is a flange part 212a. The flange portion 212a has a circular through hole 212b in which the insertion tube portion 34 in the trunk portion 3 enters the center of the upper surface (contact surface) 212a1. A part of the water diversion channel 11 that is a passage through which the water flow from the water pipe P can pass is formed in the saddle body 21 by the through hole 212b. The fixing bolt through holes 212c and 212c, which are two circular holes, are formed symmetrically in plan view with the center of the through hole 212b as a reference. The fixing bolt through-hole 212c is a hole extending in a direction (vertical direction in the present embodiment) orthogonal to the upper surface (contact surface) 212a1 of the flange portion 212a, and is a lower portion as shown in FIG. 212c1 is a hole (a counterbore hole) having a large diameter and an upper portion 212c2 having a small diameter. As shown in FIG. 1A, the head 51 of the fixing bolt 5 is located in the lower portion 212c1 of the fixing bolt through hole 212c, and the screw portion 52 of the fixing bolt 5 is located in the upper portion 212c2. In a state where the fixing bolt 5 is screwed into the fixing bolt mounting hole 332 of the flange portion 33, the top surface 511 of the head 51 of the fixing bolt 5 is substantially flush with the lower surface 212a2 of the flange portion 212a as illustrated. For this reason, the elastic force generated by the compression on the saddle packing 4 disposed in the trunk receiving portion 212 can be applied uniformly to the flange portion 212 a and the fixing bolt 5.

  As shown in FIG. 2A, the shape of the upper surface (contact surface) 212a1 of the flange portion 212a is a substantially rhombus that is narrow in the front-rear direction and wide in the left-right direction (in this embodiment, left and right in the rhombus). The shape is provided with rounded corners after the corners of the direction are chamfered). That is, the diagonal distance in the direction orthogonal to the line 212X connecting the centers of the fixing bolt through holes 212c and 212c is smaller than the diagonal distance in the direction along the line 212X connecting the centers. For this reason, the upper surface (contact surface 212a1) of the flange portion 212a can be formed in a substantially rhombus having an area where two fixing bolts 5 and 5 can be attached. Therefore, the dimension of the flange part 212a can be made smaller than in the case of using a large number of bolts as in the conventional configuration using four bolts. Moreover, since the upper surface of the flange part 212a is narrow in the front-rear direction, the width dimension of the saddle part 2 can be reduced. For this reason, the saddle part 2 can be reduced in weight compared with the past. Therefore, the manufacturing cost can be reduced. Further, since the upper surface (contact surface) 212a1 has a substantially rhombus shape, both ends on the large diagonal side of the upper surface (contact surface) 212a1 can be narrowed down, and the size can be reduced. On the other hand, since a sufficient area for forming the water diversion channel 11 can be secured at the center of the upper surface (contact surface) 212a1, the necessary functions are not limited while being made compact.

  The band portion 22 has substantially the same shape as the portion of the saddle body 21 excluding the barrel receiving portion 212. Similar to the saddle body 21, the band portion 22 includes a curved portion 221 and a bolt attachment piece 222. The curved portion 221 is a portion that abuts along the lower side surface of the water pipe P in a state where the band portion 22 is fixed to the water pipe P. The inner surface 221a of the curved portion 221 has a curvature corresponding to the radius of the side surface (outer peripheral surface) of the water pipe P. In addition, a long hole-shaped notch 221 a that is long in the left-right direction is formed at the center in the width direction of the curved portion 221 in order to save material. And the bolt attachment piece 222 protrudes from the edge part of the curved part 221 to the left-right side. The bolt mounting piece 222 includes a bolt through hole 222a through which the mounting bolt 23a passes.

  When the saddle portion 2 is fixed to the water pipe P, the saddle packing 4 is disposed between the trunk receiving portion 212 of the saddle body 21 and the water pipe P. The saddle packing 4 is made of synthetic rubber, and as shown in FIGS. 3A to 3D, the plan view and the bottom view are substantially rhombus, and the corners are rounded. In the center, a circular through hole 41 for allowing water flowing out from the through hole of the water pipe P to flow into the body portion 3 penetrates in the vertical direction. In the through hole 41, the lower part 411 is formed to have a larger diameter than the upper part 412. The inner diameter of the upper portion 412 of the through hole 41 is slightly smaller than the outer diameter of the insertion tube portion 34 of the body portion 3 so that water does not leak between the saddle packing 4 and the insertion tube portion 34. Has been. A part of the water diversion channel 11 is formed in the saddle packing 4 by the through hole 41.

  In a state where the saddle portion 2 is fixed to the water pipe P, the saddle packing 4 is compressed in the vertical direction (FIG. 1A shows an uncompressed state). Thereby, the water which flowed out from the water pipe P is prevented from leaking along the outer periphery of the water pipe P. Further, in a state where the saddle portion 2 is fixed to the water pipe P, the outer peripheral surface 42 of the side portion of the saddle packing 4 abuts against the inner surface of the trunk receiving portion 212 of the saddle body 21 in a watertight state.

  When the saddle portion 2 is fixed to the water pipe P, the saddle body 21 is fixed to the saddle portion 2 in advance, and the saddle body 21 is placed upward with the water pipe P interposed therebetween. Is arranged below. Next, the mounting bolt 23a is penetrated so as to vertically penetrate the saddle body 21 and the bolt mounting pieces 213 and 222 of the band portion 22. Then, the mounting nut 23b is screwed into the mounting bolt 23a and tightened. Thereby, the saddle part 2 is fixed to the water pipe P. As the mounting nut 23b is tightened with respect to the mounting bolt 23a, the trunk receiving portion 212 of the saddle body 21 moves downward. Along with this, the saddle packing 4 is compressed, and waterproofing is performed between the saddle body 21 and the water pipe P.

  The trunk portion 3 includes a trunk body 31, a valve body 32, a flange portion 33, an insertion tube portion 34, a discharge portion 35, and an upper cap 37. In this embodiment, each part of the trunk | drum 3 is formed with the brass. However, the material of the trunk | drum 3 is not limited to this, Various materials, such as copper alloys, such as bronze, or stainless steel, are employable. A part of the water diversion channel 11 is formed inside the trunk portion 3, whereby the water flow branched from the water pipe P can be guided to the discharge portion 35.

  The trunk portion body 31 is a portion in which the valve body 32 is built. As shown in FIG. 4A, the flange portion 33 is positioned below the trunk portion main body 31, and the insertion tube portion 34 protrudes below the flange portion 33. A perforating work port portion 36 protrudes from the upper portion of the trunk portion main body 31. The perforating work port portion 36 has a cylindrical shape, and a thread is formed on the outer periphery of the upper portion, and the upper cap 37 is screwed therein. The upper cap 37 can be removed as necessary to open the drilling work port 36. Further, the left and right sides of the trunk body 31 are also opened. Among these, the left side is a discharge portion 35 that is an outlet of water. On the other hand, the operation part 321 which is a part of the valve body 32 protrudes on the right side.

  The valve body 32 is arranged so as to be rotatable around the horizontal axis inside the trunk body 31. A right portion of the valve body 32 is an operation portion 321 protruding from the body portion 31, and the valve body 32 can be rotated by twisting the operation portion 321 by an operator. By turning the valve body 32, the water diversion channel 11 inside the trunk portion 3 can be opened and closed. An O-ring 38 is disposed between the trunk body 31 and the valve body 32 so that water does not leak from between the trunk body 31 and the valve body 32.

  When the water tap P is drilled after the saddle-equipped water faucet 1 is attached to the water pipe P, the valve body 32 is opened in the vertical direction by rotating the valve body 32. State. When the upper cap 37 is removed from the drilling work port 36 in this state, the drilling work port 36 is opened, and a drill blade or the like for drilling from there is brought into contact with the water pipe P through the valve body 32. Can be made.

  A cylindrical insertion tube portion 34 projects downward from the center of the lower surface (contact surface) 331 of the flange portion 33. As shown in FIG. 4B, fixing bolt mounting holes 332 and 332, which are two circular holes, are formed symmetrically when viewed from the bottom with the insertion cylinder part 34 interposed therebetween. The fixing bolt mounting hole 332 is a hole extending in a direction (vertical direction in the present embodiment) orthogonal to the lower surface (contact surface) 331 of the flange portion 33. The distance between the centers of the two fixing bolt mounting holes 332 and 332 is the same as the distance between the centers of the two fixing bolt through holes 212 c and 212 c in the saddle body 21. As shown in FIG. 4B, the flange portion 33 has a lower surface (contact surface) 331 that is narrow in the front-rear direction and the left-right direction in the same manner as the upper surface shape of the flange portion 212a of the saddle body 21. It is a broad rhombus. That is, the diagonal distance in the direction orthogonal to the line 33X connecting the centers of the fixing bolt mounting holes 332 and 332 is a substantially rhombus that is smaller than the diagonal distance in the direction along the line 33X connecting the centers. Thus, the effect | action of making the lower surface (contact surface) 331 of the flange part 33 a substantially rhombus is the same as that of the flange part 212a in the said saddle main body 21 (refer 0019, 0020 paragraph). That is, the dimension of the flange part 33 can be made smaller than in the case of using a large number of bolts as in the conventional configuration using four bolts. For this reason, the trunk | drum 3 can be reduced in weight compared with the past. Therefore, the manufacturing cost can be reduced.

  Moreover, the opening diameter in the lower surface of the flange part 33 of the fixing bolt attachment hole 332 is substantially the same as the opening diameter in the upper surface of the flange part 212a of the fixing bolt through-hole 212c in the saddle main body 21 in this embodiment. The fixing bolt mounting hole 332 is a bottomed hole that does not penetrate the flange portion 33. Further, a screw thread into which the fixing bolt 5 can be screwed is formed on the inner peripheral surface of the fixing bolt mounting hole 332.

  The insertion tube portion 34 has a lower end substantially matching the inner surface 211 a of the bending portion 211 in the saddle body 21 in a state where the body portion 3 is attached to the saddle portion 2. The dimension of the insertion tube part 34 is not limited to this, and it is considered that if the lower end of the insertion tube part 34 is located below the inner surface 211a of the bending part 211, the insertion tube part 34 will interfere with the water pipe P. An appropriate dimension can be set such that the lower end of the portion 34 is positioned above the inner surface 211a. Water that has flowed out of the water pipe P flows into the internal space of the plug-in cylinder portion 34. After passing through the insertion tube portion 34, this water passes through the valve body 32, exits from the discharge portion 35, and is passed to a water supply pipe that is connected to the discharge portion 35 and goes to a home or business office. That is, this insertion cylinder part 34 comprises a part of diversion channel 11 which can let the water flow from the water pipe P pass. And the fixing bolts 5 and 5 attached to each flange part 212a, 33 are arrange | positioned in the position which opposes with respect to the water diversion flow path 11 in this insertion cylinder part 34. As shown in FIG.

  The discharge portion 35 is a substantially cylindrical portion extending leftward from the trunk portion main body 31, and a pipe screw is formed on the inner surface. A water supply pipe is screwed and connected to the discharge part 35.

  The fixing bolt 5 is made of a stainless alloy. When the trunk portion 3 is attached to the saddle portion 2, the fixing bolt 5 passes through the fixing bolt through hole 212 c of the flange portion 212 a in the saddle body 21 from below, and then the fixing bolt attachment of the flange portion 33 in the trunk portion 3 is performed. Screwed into hole 332. That is, in a state where the body portion 3 is attached to the saddle portion 2, the head portion 51 of the fixing bolt 5 is located below and the screw portion 52 is located above. The tip of the screw portion 52 is located inside the flange portion 33. For this reason, the fixing bolt 5 is not exposed from the trunk portion 3. Therefore, when the saddle water faucet 1 is attached to the water pipe P and buried in the soil, the fixing bolt 5 can be prevented from corroding due to the soil environment, and the durability of the water faucet 1 with saddle is improved. it can.

  The head 51 of the fixing bolt 5 is urged from below by the elasticity of the saddle packing 4. This urging from below prevents the fixing bolt 5 from loosening. Furthermore, since the outer peripheral surface 42 of the side portion of the saddle packing 4 abuts on the body receiving portion 212 of the saddle body 21 in a watertight state, the fixing bolt 5 does not touch the water flowing out from the water pipe P. For this reason, corrosion of the fixing bolt 5 due to contact with water can be suppressed. Further, the fixing bolt 5 is also waterproofed by the abutment of the upper surface 43 of the saddle packing 4, the lower surface 212 a 2 of the flange portion 212 a, and the top surface 511 of the head 51 of the fixing bolt 5 with the urging force.

  According to the saddle-equipped water faucet 1 configured as described above, the saddle portion 2 and the body portion 3 are fixed by the two fixing bolts 5 and 5 that face the diversion channel 11. . And the flange parts 212a and 33 in the saddle part 2 and the trunk | drum 3 are formed in the substantially rhombus. For this reason, each flange part 212a and 33 can be formed in the shape which can attach the two fixing bolts 5 and 5. FIG. Further, the width dimension of the saddle portion 2 can be reduced. For this reason, since the dimension can be reduced in the front-rear direction, the material cost can be reduced by the small size. Therefore, the water faucet 1 with a saddle that is lightweight and compact and can reduce the manufacturing cost can be obtained.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the summary of this invention.

  For example, the band portion 22 is not limited to a shape that is symmetrical to a part of the saddle body 21 as in the above-described embodiment, and a stainless plate or the like may be used. Moreover, what welded the volt | bolt to the both ends of the U volt | bolt or a plate-shaped body can also be used as a component which integrated the band part 22 and the attachment volt | bolt 23a.

  Further, the shape of the contact surfaces 212a1 and 331 of the flange portions 212a and 33 is not limited to the substantially rhombus of the above embodiment, and may be various shapes such as a rectangle, a hexagon, an octagon, an oval, and an ellipse.

  Further, the fixing bolt through holes 212c and 212c of the saddle body 21 are fixed to the saddle portion 2 by fixing the barrel portion 3 to the saddle portion 2 by using a hole or a long hole having a larger diameter than the outer diameter of the screw portion 52 of the fixing bolt 5. The position may be adjusted.

  In the embodiment, the fixing bolt 5 is arranged to extend in the vertical direction so as to be orthogonal to the contact surfaces 212a1 and 331 of the flange portions 212a and 33. However, the fixing bolt 5 is not limited to this and is inclined. May be arranged.

  Moreover, in the said embodiment, although the fixing bolt 5 is used as a fixing member, the fixing member for couple | bonding the trunk | drum 3 with the saddle part 2 is not limited to this, For example, screws other than an insertion pin and a bolt Various members such as a clip that sandwiches the member and the flange from the outside can be used.

  In addition, the water pipe P to which the saddle-equipped water faucet 1 of the embodiment is attached is a circular pipe, but is not limited to this, and the water supply with saddle is attached so as to be attached to the water pipe P having another cross-sectional shape. A stopper (particularly a saddle portion) may be formed.

1 Divider with saddle 11 Divide flow path 2 Saddle part 212a Flange part (saddle part)
212a1 Flange contact surface 212X Line connecting two bolts 3 Body 33 Flange (body)
331 Contact surface of flange portion 33X Line connecting two bolts 5 Fixing member, bolt, fixing bolt 51 Head of bolt 52 Screw portion of bolt P Water pipe

Claims (5)

In the water faucet with saddle attached so as to straddle the water pipe to branch the water flow,
A saddle part attached to the water pipe, and a trunk part located outside the diameter from the saddle part on the basis of the water pipe,
The saddle part and the body part have a water diversion channel formed on a side surface of the water pipe , through which a water flow from a through hole for water diversion can pass.
The saddle-equipped water faucet, wherein the saddle portion and the body portion are fixed by two fixing members at positions facing each other across the water diversion channel. Bolts are used as the fixing members,
The saddle portion and the body portion include a flange portion to which the two bolts are attached,
The abutment surface of the flange portion on the saddle portion side or the flange portion on the trunk portion side is the two of the two when the saddle portion and the trunk portion overlap each other when viewed from the outside on a water pipe standard. The water faucet with a saddle according to claim 1, wherein a diagonal distance in a direction perpendicular to a line connecting the bolts is smaller than a diagonal distance in a direction along the line.   The water faucet with a saddle according to claim 2, wherein a direction orthogonal to a line connecting the two bolts is a direction along an axial direction of the water pipe. The two bolts have a head located on the water pipe side, a screw part located on the trunk side,
The hole into which the screw portion is screwed in the flange portion on the trunk portion side is a bottomed hole, and the tip of the screw portion is located in the trunk portion. Water faucet with saddle. The saddle portion includes a saddle body that covers the through hole formed in the water pipe,
  Between the saddle body and the water pipe, a saddle packing having a through-hole penetrating in the vertical direction is disposed,
  The saddle packing is located below the two fixing members,
  The water faucet with a saddle according to any one of claims 1 to 4, wherein the through hole of the saddle packing is a part of the water diversion channel.

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