JP4193105B2 - Pipe stop valve handle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stop cock handle of a pipe joint provided with a stop cock.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, a pipe joint is connected to the end of an external pipe that extends along the floor (behind the floor) or behind the wall (hereinafter referred to mainly as an underfloor pipe as an external pipe), and a faucet or the like is connected to the pipe joint. The indoor side equipment is connected through an indoor internal pipe.
[0003]
Conventionally, the pipe joint is often arranged in a concealed portion when viewed from the indoor side, such as under the floor. In this case, it is easy to check the connection between the underfloor pipe and the pipe joint. There is a problem that can not be.
Therefore, in recent years, pipe joints are arranged on the indoor side, and the end of the underfloor pipe (hereinafter simply referred to as pipe) is passed through the through hole provided in the floor (started up), and this is connected to the pipe joint. Connecting and fixing the pipe joint to the inner surface of the floor has come to be performed.
[0004]
16 and 17 show an example of the construction together with a configuration example of the pipe joint. In these drawings, 204 is a pipe joint fixed to the upper surface (inner surface) of a floor (base body) 206, and 208 is a through hole provided in the floor 206.
The pipe (external pipe) 202 is raised on the floor 206 (inside the room) through the through hole 208 and connected to the pipe joint 204.
[0005]
Reference numeral 210 denotes a joint body in the pipe joint 204, in which a connection mechanism 212 of the resin pipe 202 is incorporated.
The connection mechanism 212 includes a ring-shaped lock ring 214 and a spring 216 that biases the lock ring 214 downward in the drawing.
The lock ring 214 has a claw 220 at the upper end of the elastic arm 218, and the pipe 202 is prevented from being pulled out by biting the claw 220 into the outer surface of the pipe 202.
[0006]
The connection mechanism 212 of this example is capable of releasing the connection of the pipe 202 to the joint body 210. When the lock ring 214 is pushed upward against the urging force of the spring 216, the pipe 202 by the claw 220 is used. The biting into the outer surface is released, and the pipe 202 can be extracted from the joint body 210 here.
A metal ring 222 is attached to the lower end portion of the joint body 210, and the joint body 210 is pressed downward by a large-diameter fixing member 224 that also serves as a one (cover member) through the ring 222. .
[0007]
A pedestal member 226 is disposed in the through hole 208, and the pipe 202 protrudes onto the floor 206 through the center hole 227 of the pedestal member 226.
The pedestal member 226 has a flange-shaped seat portion 228, and is fixed to the floor 206 with screws 230 in a state where the seat portion 228 is seated on the upper surface of the floor 206.
[0008]
The pedestal member 226 has a cylindrical portion 232 that rises on the floor 206.
A male screw 234 is formed on the outer peripheral surface of the cylindrical portion 232, and a female screw 236 formed on the inner peripheral surface of the fixing member 224 is screwed into the male screw 234.
Based on the screwing of the fixing member 224 into the pedestal member 226, the joint body 210 is fixed in a state in which the lower end thereof is strongly brought into contact with the upper end of the pedestal member 226.
[0009]
The joint main body 210 of this example is of a water faucet integrated type, and a water faucet 240 having a water stop valve body 238 on the upper part thereof is integrally formed.
Furthermore, the connection port 242 for connection with the indoor equipment is also integrally formed at the upper part thereof in a state protruding sideways.
Here, the water stop valve body 238 is incorporated in the main body body 211 coaxially with the main axis in the vertical direction in the figure of the main body body 211 that is the pipe body of the joint main body 210, and moves forward and backward along the main axis to close the valve body. Or, valve opening operation is performed.
[0010]
The water stop valve body 238 is formed with an engagement groove 239 on the upper surface in the drawing, and the tip of a tool such as a flathead screwdriver is engaged therewith so that the water stop valve body 238 is rotated. It has become.
Therefore, in the case of the pipe joint 204 of this example, a tool such as a flat-blade screwdriver for rotating the water stop valve body 238 is necessary for the installation work. Therefore, such a tool happens to be missing or lost. If it does, the water stop valve body 238 cannot be rotated.
Further, since the operation of the long tool must be performed after engaging the engaging groove 239 of the water stop valve body 238, there is a problem that the operation itself is troublesome.
[0011]
The pipe joint 204 in this example is also provided integrally with the connection port 242 extending from the main body 211 in a lateral direction, that is, in a state perpendicular to the main axis of the main body 211, so that the joint main body 210 is provided at the end of the pipe 202. It is difficult to protrude them from the bottom of the floor 206 onto the floor 206 through the through holes 208 of the floor 206 and fix them to the floor 206.
[0012]
Therefore, in this example, as shown in FIG. 17, with the end portion of the pipe 202 separated from the joint body 210, the pipe 202 protrudes through the through hole 208 of the floor 206 onto the floor 206, and this is inserted into the center hole of the base member 226. Then, the base member 226 is fixed to the upper surface of the floor 206, and the end of the pipe 202 is connected to the joint body 210 on the floor 206, and then the fixing member 224 is screwed into the base member 226 and the joint body 210 and The end of the pipe 202 is fixed.
[0013]
By the way, when the pipe 202 is constructed on site, a pipe pressure test is performed by applying pressure (1.75 to 2.5 MPa) inside the pipe 202 in a completed state. At this time, the joint body 210 is connected to the end of the pipe 202 in advance. Even if the piping pressure resistance test is performed by connecting to the joint 206, the joint body 210 cannot be fixed on the floor 206 through the through hole 208 while maintaining the connection thereafter.
[0014]
Therefore, in this example, it is necessary to remove the joint main body 210 from the pipe 202 once, pass the pipe 202 through the through hole 208 of the floor 206, and then reconnect the joint main body 210 and fix it to the floor 206. .
Alternatively, a test plug is attached to the end of the pipe 202 so that the inside of the pipe 202 is closed. In this state, a pressure is guided into the pipe 202 to perform a pipe pressure test, and then the plug is removed. The connection between the end of the pipe 202 and the joint body 210 and the fastening of the joint body 210 to the floor 206 must be performed.
[0015]
However, in any case, even if the pressure resistance performance is confirmed by the bending pipe pressure resistance test, the joint body 210 or the test plug is later removed from the pipe 202 later, and the joint body 210 is connected to the end of the pipe 202 again. Since this must be done again, there arises a problem that sufficient pressure resistance performance cannot be guaranteed for the connection portion between the pipe 202 and the joint body 210, that is, the pipe joint 204.
That is, in the case of this example, there is a problem that the pipe pressure resistance test cannot be performed substantially on the connection portion between the pipe 202 and the pipe joint 204.
[0016]
Therefore, it is conceivable to provide the connection port 242 in FIG. 16 on the upper side of the stop cock 240 and in a direction coaxial with the main axis of the main body 211 in the joint main body 210.
Alternatively, the connection port 242 is configured separately from the main body 211 and connected to the main body 211 in a direction perpendicular to the main axis of the main body 211 on the upper side of the faucet 240, that is, in a horizontal state. It is possible to do so.
However, in any of these cases, there arises a problem that it becomes difficult to operate the water stop valve body 238 in the presence of the connection port 242, or the operation itself cannot be performed.
[0017]
On the other hand, FIG. 18 shows a pipe joint disclosed in Patent Document 1 below. In the case of this pipe joint 245, the end of the pipe 202 is projected onto the floor 206 through the through hole 208 of the floor 206, and the pipe An end portion of 202 is connected to a joint body 246 installed on the floor 206.
[0018]
The joint main body 246 has a main body body 248 and a push ring 250 screwed to the lower end portion thereof, and the end of the pipe 202 inserted into the joint main body 246 is connected to the joint by the locking action of the lock ring 252. It is connected and fixed to the main body 246.
[0019]
Reference numeral 254 denotes a pedestal member fixed to the floor 206, and the joint main body 246 is fixed to the pedestal member 254 via a connecting body 256.
Here, the joint body 246 and the coupling body 256 are fixed to each other by a clamp 258.
260 is a water stop cock formed separately from the joint main body 246, and 238 is a water stop valve body thereof.
However, the pipe joint 245 shown in FIG. 18 also has the same problem as described above.
[0020]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-167817
[Means for Solving the Problems]
The stop cock handle of the pipe joint of the present invention has been devised to solve such problems.
Thus, according to the first aspect of the present invention, the joint body has a joint body, and a water stop valve body that moves forward and backward in the direction of the principal axis of the pipe body and opens and closes is coaxially built in the joint body. In addition, the joint body is sized to be able to be inserted through a through-hole of a base body such as a floor or a wall, and the joint body is connected in advance to an end of an external pipe extending on the back side of the base body. A stop cock handle for rotating the stop valve body of a pipe joint with a stop cock that protrudes from the back side of the base body to the indoor side through the through hole and is fixed to the inner surface of the base body. Both ends have a cylindrical shape with an open shape, and are externally fitted to the tube body of the joint body so as to be removably inserted in the main shaft direction from the end on the side opposite to the base body and connected to the indoor equipment. A valve driving member that is fitted and arranged coaxially with the water stop valve body and drives the water stop valve body by rotation. Against, characterized in that are no to engage integrally rotating state in the inner.
[0022]
According to a second aspect of the present invention, in the first aspect, the water stop valve body and the water stop cock handle are located in an intermediate portion in the main axis direction of the pipe body in the joint body.
[0023]
According to a third aspect of the present invention, in any one of the first and second aspects, an engaging claw is provided along a circumferential direction on the inner peripheral side of the handle, and the engaging claw is used as an engaged claw of the valve drive member. The valve drive member is engaged with each other in a meshing state and rotated by its own rotation.
[0024]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the engaging claw is a serration portion formed over the entire circumference on the inner peripheral side of the handle.
[0025]
According to a fifth aspect of the present invention, in the stopcock handle according to any one of the first to fourth aspects, the locking projection or locking recess for retaining is provided, and the locking projection or locking recess is The coupling main body is elastically locked in the main axis direction with a corresponding locking recess or locking protrusion provided on the tube side.
[0026]
[Operation and effect of the invention]
As described above, the present invention includes a stop cock handle for rotating a stop valve body in a pipe joint with a stop cock.
Thus, the stop cock handle has a cylindrical shape whose both ends in the axial direction are open, and is fitted in an externally fitted state so that it can be inserted into and removed from the pipe body of the joint body in the main axis direction. It is arranged coaxially and is configured to engage with the valve drive member that drives the water stop valve body by rotation in an integrally rotated state on the inner peripheral side. By using the water stop handle of the present invention, When the water stop valve body is built coaxially with the main shaft of the pipe body in the joint body, the water stop valve body can be operated from the outside of the pipe body by rotating the water stop handle without using a tool such as a flat-blade screwdriver. However, the opening / closing operation can be performed satisfactorily.
[0027]
Therefore, according to the present invention, it is also possible to provide a connection port for connection with indoor equipment above the water stop valve body, that is, the water stop cock, coaxially with the main shaft of the pipe body in the joint body.
Alternatively, it is possible to connect the connection port to the pipe body as a separate body from the pipe body in the joint body on the upper side of the water stop cock, and to arrange the connection port in a direction perpendicular to the main axis of the pipe body. Become.
Thus, in this case, it is possible to solve the problem that the joint body cannot be passed through the through hole of the base body such as the floor due to the presence of the connection port or the like.
[0028]
The water faucet handle of the present invention can be inserted and removed, and after passing the joint main body through the through hole of the base body, the water stop valve handle is fitted into the pipe body of the joint main body so that the water stop valve body can be rotated. It is possible to install.
In this case, the water stop valve body and the water stop cock handle can be positioned at the intermediate portion in the main axis direction of the pipe body in the joint body.
[0029]
In addition, an engaging claw is provided along the circumferential direction on the inner peripheral side of the handle, the engaging claw is engaged with the engaged claw of the valve drive member, and the valve drive member is rotated by its own rotation. The stop cock handle can be configured so as to make it (claim 3).
[0030]
In this case, the engaging claw can be a serration portion formed over the entire circumference on the inner circumference side of the handle (claim 4).
In this way, the faucet handle can be satisfactorily engaged with the engaged claws of the valve drive member regardless of the angular position of the rotation direction in which the stop cock handle is fitted into the pipe body of the joint body. Can do.
[0031]
According to a fifth aspect of the present invention, the stop cock handle is provided with a locking projection or locking recess for retaining, and this is elastic in the main axis direction with respect to the corresponding locking recess or locking projection provided on the tube side of the joint body. In this way, it is possible to satisfactorily prevent the water faucet handle mounted at a predetermined position from being removed.
[0032]
【Example】
Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 2, 14 is an underfloor pipe (external pipe; hereinafter simply referred to as pipe) made of resin (for example, polybutene, cross-linked polyethylene, etc.) and extends under the floor (back side). In FIG. 1, reference numeral 15 denotes a pipe joint connected to the end of the pipe 14 on the floor (base) 10 (inside the room).
2 to 10 specifically show the configuration of the pipe joint 15.
[0033]
As shown in FIGS. 2 and 3, a through hole 12 is provided at a predetermined location in the floor 10, and an end of the pipe 14 protrudes on the floor 10 through the through hole 12.
The protruding end portion of the pipe 14 is connected and fixed to the joint body 16 in the pipe joint 15.
[0034]
Reference numeral 18 denotes a body body in the joint body 16, and as shown in FIG. 2, a cylindrical inner tube portion 20 is integrally formed at the lower portion.
Reference numeral 22 denotes an outer tube portion formed of a cylindrical sleeve that is separate from the main body 18 and is screwed to the main body 18 at the upper end.
A cylindrical insertion space 24 is formed between the inner tube portion 20 and the outer tube portion 22, and an end portion of the pipe 14 is inserted therein.
[0035]
A cylindrical lock ring 26 is also inserted into the insertion space 24 so as to be movable up and down in the figure between the outer peripheral surface of the end portion of the pipe 14 and the outer tube portion 22.
The lock ring 26 has an inward claw 28 at the tip of the elastic arm 27, and the claw 28 bites into the outer surface of the pipe 14, thereby preventing the end of the pipe 14 from being pulled out from the joint body 16.
[0036]
A spring 30 is interposed between the lock ring 26 and the outer tube portion 22, and the lock ring 26 is urged downward by the spring 30.
In the state where the operating force is released, the lock ring 26 is prevented from being pulled out by the claw 28 biting into the outer surface of the end portion of the pipe 14 by the downward urging force of the spring 30 in the drawing.
[0037]
On the other hand, by applying an upward force in the figure against the urging force of the spring 30 against the lock ring 26, the claw 28 is bitten away from the end of the pipe 14, where the end of the pipe 14 is connected to the joint body 16. It becomes possible to extract from.
[0038]
A stop cock 32 is integrally provided on an upper portion of the body body 18 in the joint body 16.
Specifically, the upper portion of the main body 18 is configured as a cylindrical valve housing 34, and a water stop valve body 36 is fitted therein so as to be watertight and slidable vertically.
Here, the water stop valve body 36 is housed in the tube body of the joint body 16 including the body body 18 and a connecting pipe 48 described later, coaxially with the main shaft.
[0039]
In the water stop cock 32, the water stop valve body 36 advances downward in the figure and the valve portion 38 is seated on the valve seat 40, so that the valve is closed, that is, the water channel is shut off.
Further, the water stop valve body 36 is retracted upward in the drawing and the valve portion 38 is separated from the valve seat 40, so that the water channel is opened.
Further, the opening of the water channel is adjusted according to the retreat amount, and the amount of water flowing through the joint body 16 is increased or decreased.
[0040]
Here, the water stop valve body 36 is moved forward and backward by a forward and backward movement of the valve drive ring (valve drive member) 41 based on the rotation operation of the stop cock handle 39 in the vertical direction in the figure.
[0041]
The valve drive ring 41 is divided into a lower inner cylinder 42 and an upper outer cylinder 44, which are screwed together.
A plate-like engagement member 43 having a C-ring shape is sandwiched between the inner cylinder 42 and the outer cylinder 44, and the inner periphery of the upper end of the valve drive ring 41 is also sandwiched between them. A female screw is formed on the inner peripheral surface of the upper surface of the outer cylinder 44, specifically, the valve drive ring 41 is formed on the outer peripheral surface of the lower end portion of the connecting pipe 48 constituting one component of the joint body 16. Screwed to male thread.
The one engaging member 43 is engaged with an engaging groove 46 formed in the water stop valve 36 at its inner end.
[0042]
Therefore, in this stop cock 32, when the stop cock handle 39 is rotated to rotate the valve drive ring 41 integrally, the valve drive ring 41 is rotated at the threaded portion with the connecting pipe 48 together with the rotational movement. Moves forward and backward by screw feed in the middle and up and down directions. Then, the engaging member 43 moves in the vertical direction in the figure together with the valve drive ring 41, and the water stop valve body 36 is moved forward and backward in the vertical direction in the figure as the engaging member 43 moves.
[0043]
Here, the engagement member 43 is non-rotating, and the valve drive ring 41 moves relative to the engagement member 43 in the rotation direction when the valve drive ring 41 rotates.
The water faucet handle 39 is provided with a finger hook portion 47 in a protruding state.
[0044]
The connecting pipe 48 has a female screw on the inner peripheral surface, and the female screw is screwed to a male screw on the outer peripheral surface of the upper end portion of the main body body 18 in the drawing, and is integrated with the main body body 18, so that the joint main body 16 is integrated. This constitutes the tube.
One end of an elbow-shaped connecting pipe 50 is detachably connected to the connecting pipe 48 by a spring clip 58.
[0045]
Specifically, the connecting pipe 48 is provided with a female fitting portion 52 and a flange portion 54, and the connecting pipe 50 is provided with a male fitting portion 56 and a flange portion 54. 50 male fitting portions 56 are fitted into the female fitting portions 52 of the connecting pipe 48, and in this state, the pair of flange portions 54, 54 in the connecting pipe 48 and the connecting pipe 50 are axially moved by the spring clip 58. By being sandwiched, the connecting pipe 48 and the connecting pipe 50 are connected to each other.
[0046]
The other end of the connection pipe 50 is provided with a connection port 60 for connecting the end of the pipe 14 and an indoor device such as a faucet via the pipe joint 15. The indoor side devices can be connected to each other via an indoor internal pipe.
[0047]
2 to 6, reference numeral 62 denotes a pedestal member (base fixing member) for fixing the joint body 16 to the floor 10, a flange-like seating portion 64 seated on the upper surface (inner surface) of the floor 10, and the floor 10 is fixed to the floor 10 with a fixing screw 68 at a seating portion 64 thereof.
[0048]
As shown clearly in FIG. 4, a male screw is formed on the outer peripheral surface of the cylindrical portion 66 of the pedestal member 62, and a tightening nut 70 having a large-diameter cylindrical shape is screwed downward in the axial direction. It is tightened.
Here, the tightening nut 70 is integrally formed with a polygonal rotation operation portion 73 as shown in FIG. 4, and the tightening nut 70 can be easily rotated at the rotation operation portion 73. It has become.
[0049]
Between the base member 62 and the tightening nut 70, as shown in FIGS. 2 to 6, a fixing ring 71 that is separate from them is interposed.
As shown in FIG. 4, the fixing ring 71 has a C-ring shape and is perpendicular to the axial direction in the annular groove 75 formed in the outer peripheral surface of the joint body 16, specifically, the outer tube portion 22, in the thick portion 59. And is tightly clamped in the axial direction (vertical direction in the figure) by the base member 62 and the tightening nut 70 by screwing (tightening) the tightening nut 70 to the base member 62. At the same time, the joint body 16, specifically, the groove bottom surface of the annular groove 75 is strongly pressed (intensified) radially inward.
[0050]
As a result, the joint body 16, the base member 62, the tightening nut 70, and the fixing ring 71 are firmly and integrally fixed.
[0051]
As shown in FIGS. 4 and 6, engagement concave portions 65 are formed at predetermined pitches in the circumferential direction on both end surfaces in the axial direction of the fixing ring 71.
On the other hand, engaging projections 67 are formed at a predetermined pitch in the circumferential direction on the end surface in the axial direction of the pedestal member 62, specifically, the axial end surface on the fixing ring 71 side. By engaging the mating recess 65, the fixing ring 71 is restricted from rotating with respect to the base member 62.
That is, when the tightening nut 70 is rotated and tightened with respect to the pedestal member 62, the fixing ring 71 is prevented from spinning around the pedestal member 62.
[0052]
Here, the fixing ring 71 having a C-ring shape is strongly pressed against the outer tube portion 22 of the joint body 16 in the centripetal direction by the axial tightening of the tightening nut 70 with respect to the base member 62 for the following reason.
[0053]
That is, the tightening nut 70 and the pedestal member 62 are each formed with a female tapered surface (cam surface) 74 that is inclined in the opposite direction, while the fixing ring 71 has a corresponding inclined male tapered surface 72. The fixing ring 71 is sandwiched between the base member 62 and the tightening nut 70 in the axial direction by the tightening of the tightening nut 70 by the action of the male tapered surface 72 and the female tapered surface 74. At the same time, the joint body 16 is pressed against the groove bottom surface of the annular groove 75 of the outer tube portion 22 (strongly pressed).
[0054]
2 and 7, reference numeral 69 denotes a guide member when the pipe 14 is inserted, and is made of a transparent resin.
Accordingly, it can be easily confirmed from the outside whether the pipe 14 is sufficiently inserted into the joint body 16 through the guide member 69.
[0055]
1 to 5, reference numeral 76 denotes a cover member that covers (contains) the base member 62 and the lower portion of the tightening nut 70 so as to cover the inside.
This cover member 76 is made of a thin plate-like member, and has a slide-shaped slide portion 61 at the upper end portion and the inner peripheral portion. In the slide portion 61, the assembly surface 63 of the tightening nut 70 is attached to the assembly surface 63. On the other hand, it is fitted and assembled so as to be slidable in the axial direction.
Here, the assembly surface 63 has a straight shape in the axial direction.
[0056]
As shown in FIG. 2, annular grooves are formed on the outer peripheral surface of the inner pipe portion 20 in the joint main body 16 in two upper and lower stages in the figure, and O-rings 78 are attached to the annular grooves, respectively. The space between the inner pipe 20 and the inner peripheral surface of the end of the pipe 14 is sealed in a watertight manner.
[0057]
On the other hand, an annular groove is also formed on the inner peripheral surface of the lock ring 26 fitted to the outer peripheral surface of the end portion of the pipe 14, and an O-ring 80 is attached thereto, and the O-ring 80 causes the lock ring 26 to A space between the inner peripheral surface and the outer peripheral surface of the end portion of the pipe 14 is sealed in a watertight manner.
[0058]
Furthermore, an annular groove is also formed on the inner peripheral surface of the outer tube portion 22, and an O-ring 82 is attached thereto, and by the O-ring 82, the inner peripheral surface of the outer tube portion 22 and the outer peripheral surface of the lock ring 26. The space between and is sealed watertight.
[0059]
In other words, in this example, O-rings 78, 80, and 82 are attached to the joint body 16 at three locations, and the end portion of the pipe 14 and the joint body 16 are sealed in a watertight manner.
The seal by the O-ring 78 is preferably a complete water-tight seal, but the seal by the O-rings 80 and 82 may not be a complete water-tight seal depending on circumstances.
[0060]
A fitting hole 84 that penetrates in the radial direction is provided in the joint body 16, specifically, the outer tube portion 22, at a position above the seal portion by the O-rings 78, 80, and 82, that is, a position on the indoor side. ing.
[0061]
As shown in FIG. 4, the fixing ring 71 includes a cylindrical portion (fitting protrusion) protruding radially inward on the inner peripheral surface of the middle thick portion 59 among the three thick portions 59. ) 86 is integrally provided, and the cylindrical portion 86 is fitted into the through-fitting hole 84 of the outer tube portion 22. By this fitting, the circumferential position of the fixing ring 71 with respect to the joint body 16 is defined.
[0062]
In the present example, the through-fitting hole 84 and the hole 88 penetrating in the radial direction at the center of the cylindrical portion 86 form an overflow hole for guiding water leakage to the outside.
This overflow hole is for overflowing the leaked water indoors and outside of the joint body 16 in the event that water leaks from between the inner pipe 20 and the end of the pipe 14 in the joint body 16. is there.
[0063]
As shown in FIG. 4, a cutout 90 is formed in the cylindrical portion 66 of the pedestal member 62, and water leaked from the overflow hole made up of the fitting hole 84 and the hole 88 passes through the cutout 90. It is led to the inside.
[0064]
4, 5, and 6, 100 protects the end of the joint body 16 during the pipe pressure test and until the internal pipe is connected to the pipe joint 15 including the joint body 16. It is a protective cap (made of resin in this example).
[0065]
FIG. 8 specifically shows the configuration of the protective cap 100.
As shown in the figure, the protective cap 100 has a bottomed cylindrical shape having a cylindrical peripheral wall portion 102 and an upper wall portion 104.
The upper outer peripheral surface of the peripheral wall portion 102 is a gently curved surface 106, and the entire shape of the protective cap 100 is substantially bullet-like.
[0066]
The upper part of the peripheral wall part 102 is a thick part 108, and the lower part is an outer fitting part 110 that is thin.
As shown in FIG. 6, the protective cap 100 is fitted to the joint body 16 in an externally fitted state with respect to the upper end portion in the figure of the joint body 16, specifically, the connecting pipe 48.
That is, the joint body 16 is attached to the joint body 16 in a state in which the upper end in the axial direction in the figure is closed.
[0067]
As shown in FIG. 8, an inward locking projection 112 for retaining is formed at a predetermined position in the circumferential direction at the lower end of the outer fitting portion 110.
On the other hand, an annular locking recess 114 (see FIGS. 2, 3, 5 and 6) is formed on the outer peripheral surface of the outer cylinder 44 of the joint body 16, specifically the valve drive ring 41. The stop projection 112 and the locking recess 114 are elastically locked so that the protective cap 100 fitted into the joint body 16 is prevented from being pulled out from the joint body 16 (see an enlarged view of FIG. 14).
[0068]
Thick ribs 116 are formed on the upper inner surface of the thin outer fitting portion 110 at a plurality of circumferential positions (here, four locations) following the upper thick portion 108 in the peripheral wall portion 102.
These ribs 116 are provided to prevent the outer fitting portion 110 from being excessively spread and deformed when the protective cap 100 is elastically fitted to the joint body 16.
That is, the presence of the ribs 116 prevents the protective cap 100 from entering the joint body 16 too deeply when the outer fitting portion 110 is excessively spread when the protective cap 100 is fitted to the joint body 16.
[0069]
The upper wall portion 104 of the protective cap 100 is formed flat, and an air vent hole 118 is formed at the center thereof. The air vent hole 118 is surrounded by an air vent valve 120 having a tongue-like elasticity. It is totally closed except for the slit.
[0070]
As shown in FIG. 10, the stop cock handle 39 has a cylindrical shape with both ends in the axial direction having an opening shape, and the pipe body composed of the body body 18 and the connecting pipe 48 in the joint body 16 is It is fitted in an external fitting state so that it can be inserted and removed in the main axis direction.
The stop cock handle 39 is disposed coaxially with the water stop valve body 36 and the valve drive ring 41 with respect to the pipe body, and is engaged by rotating the valve drive ring 41 integrally by its own rotation. The water stop valve body 36 is moved forward and backward in FIG. 2 through the member 43.
[0071]
Here, the stop cock handle 39 is disposed along with the stop valve body 36 and the valve drive ring 41 between the axial ends of the pipe body of the joint body 16, that is, at the intermediate portion in the main axis direction.
[0072]
As shown in FIG. 10 (A), the stop cock handle 39 is provided with a display portion 122 indicating the operation direction of the stop cock handle 39, as shown in FIG. 10 (A). Thus, the serration part (engagement claw) 124 is provided in the inner peripheral side over the perimeter.
On the other hand, as shown in FIG. 9, the valve drive ring 41 is provided with two engaged claws 126 corresponding to the upper outer peripheral surface at four places in the circumferential direction. On the other hand, the serration portion 124 of the stop cock handle 39 is engaged in a meshed state, and the rotational movement of the stop cock handle 39 is transmitted to the valve drive ring 41 based on the engagement.
[0073]
That is, the stop cock handle 39 and the valve drive ring 41 are rotated together by the engagement of the serration portion 124 and the engaged claw 126.
[0074]
In this example, the serration portion 124 as an engaging claw in the stop cock handle 39 is formed over the entire circumference. As a result, when the stop cock handle 39 is fitted to the valve drive ring 41 at any rotation angle position. Also, as shown in FIG. 3B, the serrations 124 and the engaged claws 126 are reliably engaged. For this reason, the assembling property of the stop cock handle 39 is good.
[0075]
As shown in FIGS. 10 (B) and 10 (C), the stop cock handle 39 is also provided with elastic pieces 128 at its lower part on the inner peripheral side so as to protrude downward at a plurality of locations in the circumferential direction. The elastic protrusions 128 are provided at their lower end portions with retaining protrusions 130 for protruding inwardly.
On the other hand, as shown in FIG. 9, an annular locking recess 132 corresponding to the lower outer periphery of the valve drive ring 41 on the tube side in the joint body 16 is formed, which is shown in the partially enlarged view of FIG. As shown, the locking protrusion 130 of the water faucet handle 39 is elastically locked to the locking recess 132 in the principal axis direction of the pipe body of the joint body 16, so that the water faucet handle 39 is The valve drive ring 41 is prevented from being removed.
[0076]
In the case of this example, in a state where the elbow-shaped connecting pipe 50 is not connected to the connecting pipe 48, the stop cock handle 39 is simply fitted into the pipe body of the joint body 16 in the main axis direction, so that it can be stopped easily. The water valve body 36 can be assembled in a state in which the water valve body 36 can be opened and closed, that is, a state in which the water valve body 36 is operatively connected to the water stop valve body 36 via the valve drive ring 41.
If necessary, the stop cock handle 39 can be easily pulled out from the assembly position in the main axis direction.
[0077]
The pipe joint 15 of this example can be constructed as follows.
First, as shown in FIG. 11, the joint body 16 in the pipe joint 15 is connected to the end of the pipe 14. Specifically, the part up to the connecting pipe 48 is connected to the end of the pipe 14.
Further, a protective cap 100 is fitted and attached to the end of the joint body 16 so that the end of the joint body 16 is substantially closed.
[0078]
In this state, the pressure resistance test of the pipe 14 is performed in the underfloor space.
Specifically, the water stopcock 32 is first opened, and water is introduced into the pipe 14 by a pump at a predetermined pressure.
At this time, the air remaining in the pipe 14 passes through the water stop cock 32 and can escape to the outside from the air vent hole 118 while elastically expanding the air vent valve 120 of the protective cap 100.
[0079]
In this way, when the air in the pipe 14 has been vented, the stop cock 32 is then closed, and water is introduced into the pipe 14 at a predetermined pressure, and a pipe pressure test is performed.
At this time, the stop cock handle 39 is not attached, but the outer periphery of the valve drive ring 41 is knurled as shown in FIGS. 3 to 7 and FIG. Even when the handle 39 is not mounted, the valve drive ring 41 can be easily rotated by holding it.
[0080]
After the pipe pressure resistance test is performed as described above, the joint body 16 is connected to the end of the pipe 14 and then the floor 10 together with the end of the pipe 14 as shown in FIGS. It protrudes on the floor 10 through the through hole 12.
At this time, as shown in FIG. 12, the pedestal member 62 is previously fixed to the upper surface of the floor 10 by a fixing screw 68, and the joint body 16 protrudes onto the floor 10 through the center hole of the pedestal member 62.
[0081]
Thereafter, the fixing ring 71 is fitted into the outer peripheral surface of the joint body 16 from the direction perpendicular to the axis, specifically, the annular groove 75, and the tightening nut 70 is fitted to the joint body 16 in the axial direction in this state as shown in FIG. Then, the pedestal member 62 is screwed together, and then the tightening nut 70 is rotationally operated to strongly tighten the pedestal member 62.
[0082]
Then, the fixing ring 71 is clamped in the axial direction by the base member 62 and the tightening nut 70 by the axial tightening force, so that the fixing ring 71 is a cam between the male tapered surface 72 and the female tapered surface 74. It is pressed in the centripetal direction by the action, and is strongly pressed against the outer peripheral surface of the joint body 16, specifically, the groove bottom surface of the annular groove 75.
[0083]
Here, the joint body 16, the base member 62, the fixing ring 71, and the tightening nut 70 are integrally fixed. That is, the joint body 16 is strongly fixed to the base member 62 by the fixing ring 71 and the tightening nut 70.
That is, the joint body 16 is firmly fixed to the floor 10 as the base by the base member 62 (see FIG. 14).
[0084]
Next, as shown in FIG. 15, the cover member 76 is fitted into the joint main body 16 in the axial direction from the upper end thereof, and is brought into contact with the upper surface of the floor covering 83, and the stopcock handle 39 is attached to the joint main body. 16 is assembled from the upper end of 16 so as to rotate integrally with the valve drive ring 41.
Here, the installation and fixing of the pipe joint 15 to the upper surface of the floor 10 is once completed.
[0085]
Thereafter, when connecting to an indoor device such as a faucet, the protective cap 100 is removed from the joint body 16 as shown in FIG. And, further, an internal pipe extending from the indoor device is connected to the connection port 60.
[0086]
As described above, in the present example, the stop cock handle 39 is provided in the pipe joint 15 with the stop cock.
Thus, the stop cock handle 39 has a cylindrical shape with both axial ends open, and is fitted in an externally fitted state so that it can be inserted into and removed from the pipe body of the joint body 16 in the main axis direction. The valve drive ring 41 that is arranged coaxially with the body 36 and drives the water stop valve body 36 by rotation is configured to engage with the inner peripheral side in an integrally rotated state. When the water stop valve body 36 is built coaxially with the main shaft of the pipe body in the joint body 16, the water stop valve body 36 is rotated from the outside of the pipe body by the stop cock handle 39. The opening / closing operation can be favorably performed without using a tool such as a screwdriver.
[0087]
Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various modifications without departing from the spirit of the present invention.
[Brief description of the drawings]
FIG. 1 is a view showing an external appearance of a pipe joint with a stop cock provided with a stop cock handle according to an embodiment of the present invention.
FIG. 2 is a diagram showing an internal structure of a pipe joint.
3 is a cross-sectional view (partially external view) and a cross-sectional view of the main part of FIG. 2;
FIG. 4 is an exploded perspective view showing a pipe joint.
FIG. 5 is an exploded sectional view (partially external view) showing a pipe joint.
6 is an exploded sectional view (partially external view) showing a portion of the pipe joint different from FIG.
FIG. 7 is a view showing a part of a pipe joint further finely disassembled into each member.
FIG. 8 is a single item diagram of a protective cap for a pipe joint.
FIG. 9 is a single product diagram of a valve drive ring of a pipe joint.
FIG. 10 is a single item view of a stop cock handle.
FIG. 11 is an explanatory diagram of a partial process of the construction procedure of the pipe joint.
12 is an explanatory diagram of the process following FIG. 11. FIG.
13 is an explanatory diagram of the process following FIG. 12. FIG.
14 is an explanatory diagram of the process following FIG. 13. FIG.
15 is an explanatory diagram of the process following FIG. 14. FIG.
FIG. 16 is a view showing an example of a conventional pipe joint with a water stop cock in an installed state.
17 is an exploded view of the pipe joint of FIG.
18 is a view showing an example of a conventional pipe joint different from FIG.
[Explanation of symbols]
10 floor (base)
12 Through hole 14 Underfloor piping (external piping)
15 Piping joint 16 Joint body 18 Body body 32 Stop cock 34 Valve housing 36 Stop valve body 39 Stop cock handle 41 Valve drive ring (valve drive member)
48 Connecting pipe 124 Serration part (engaging claw)
126 engaged claw 130 locking projection 132 locking recess

Claims (5)

The joint body has a built-in water stop valve that opens and closes in the direction of the main axis of the pipe body and opens and closes in the same direction as the main axis. The through hole of the base body is sized so that it can be inserted through the through hole of the base body, and the joint body is connected to the end of the external pipe extending in the back side of the base body in advance through the through hole of the base body. A water faucet handle that protrudes inward and rotates the water stop valve body of a pipe joint with a water faucet that is fixed to the inner surface of the base body. The joint body is fitted in an externally fitted state so that it can be inserted and removed in the main axis direction from the end on the opposite side of the base body from the connection side with the indoor equipment, and is coaxial with the water stop valve body. The valve drive member that is arranged in the shape and drives the water stop valve body by rotation is integrated on the inner peripheral side. A stop cock handle for a pipe joint, wherein the handle is engaged with a rotating state.   2. The stopcock handle for a pipe joint according to claim 1, wherein the stop valve body and the stopcock handle are located in an intermediate portion in the main axis direction of the pipe body in the joint body.   3. The method according to claim 1, wherein an engaging claw is provided along a circumferential direction on an inner peripheral side of the handle, and the engaging claw is engaged with the engaged claw of the valve drive member. A stop cock handle for a pipe joint, wherein the valve driving member is rotated by its own rotation.   4. The stopcock handle for a pipe joint according to claim 3, wherein the engaging claw is a serration portion formed on the inner circumference side of the handle over the entire circumference.   5. The stopper plug according to claim 1, wherein a locking protrusion or a locking recess for retaining is provided on the stop cock handle, and the locking protrusion or the locking recess is provided on the tube side of the joint body. A stop cock handle for a pipe joint, wherein the handle is elastically locked in the direction of the main axis with respect to a corresponding locking recess or locking projection provided.

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