JP4420780B2 - Insert rod for multi-species close-core and mounting method of close-contact core using this - Google Patents

Description

  The present invention provides a water outlet to a water faucet when installing a water faucet that is provided at the base of the water branch and controls the opening and closing of the water supply to the water branch when the water is branched from the main pipe to the branch pipe. Inserting a water plug close-up core that prevents water contact with the outer diameter of the pipe and prevents rust on the perforated wall, in close contact with the insertion hole wall from the main pipe drilling part to the water faucet water inlet The present invention relates to a stick and a method for attaching a water-adhering core using the stick.

  Conventionally, the core member is composed of an outer sleeve and an inner sleeve fitted to the outer sleeve, and the inner core is press-fitted into the outer sleeve so that a required portion is deformed to be in close contact with the hole wall (for example, Patent Documents) 1, 2), there is a single core (for example, Patent Documents 3 and 4) in which a core member constituted from the beginning is inserted into the insertion portion, and a required portion is deformed by crushing or the like to be in close contact with the hole wall. Each has been attached to the inner edge of the perforated part by a dedicated insertion rod.

In addition, the deformation of the required part also has various forms depending on the specifications of the core member, such as those for expanding and valving, those for bending and crushing (for example, Patent Document 4), and corresponding dedicated insertion rods are prepared. Has been.
JP 2004-162824 A JP 2001-304487 A Japanese Patent Laid-Open No. 8-14481 JP-A-8-159356

  However, water pipe construction contractors are not involved in the manufacture and sale of core members and insertion rods, and core materials with various specifications will be used depending on the situation at the construction site. Having to carry an insertion rod of this type results in great waste both in terms of labor and economy.

  In view of the above-described circumstances, the present invention intends to cope with this, and a main body that constitutes a pressing flange provided at the upper portion thereof with a protruding angle at which the upper end portion of the core member expands at a protruding angle capable of pressing and collapsing, and a base portion thereof. A core member supporting flange having a predetermined width having a pressing flange base portion having a diameter slightly larger than that of the lower cylindrical portion and having the same diameter as that of the base portion of the pressing flange and having upper and lower portions formed in tapered surfaces is provided in two stages. By inserting a support taper surface at the lower end of the body with a support groove in the middle of the step and a fastening head configured to be detachable at the lower end surface, an insertion rod that can be used for mounting a close-contact core with different specifications It has been completed.

  In other words, by setting the expansion angle of the core member upper end portion taper surface of the pressing flange to a protruding angle at which pressure crushing is possible, it is possible to cope with both the case where the deformation form of the core member upper end portion is the expansion deformation and the case of the pressure crushing deformation. Configured to be possible.

  In addition, a core member support flange with a predetermined width that is slightly larger in diameter than the lower cylindrical part of the main body and has a tapered surface at the upper and lower parts is provided in two stages, a support groove is set in the middle part of the two stages, and a support taper is provided at the lower end part When the length of the member is different between the insertion stage to the insertion part and the completion stage of the fitting, as in the case of the fitting type core, by attaching the detachable fastening head to the surface and the lower end face, the pressing flange And the lower end support taper surface supports the core member, and when the member length is short between the insertion stage to the insertion part and the fitting completion stage as in the case of a single core, the tip fixing head It is comprised so that a core member may be supported.

  If the diameter of the fastening head is configured to be slightly smaller than the diameter of the main body, even when the lower end of the core member is supported by the lower end support taper surface, the core member is inserted into the insertion rod body without removing the fastening head. Can be fitted.

  Hereinafter, an embodiment of the present invention in which a close core is mounted from the installation of a water faucet will be described with reference to the drawings. First, the structure of a water faucet with a saddle will be described. 1 is a water faucet body, a saddle 12 fastened to a main pipe 2 of a water pipe having a water faucet installed in the lower part, and a water passage 11 opened in the upper part. To do.

  The upper part of the water flow port 11 is a valve chamber 13, which stores a ball valve 15 that is rotated by an operating rod fitted to the ball valve rotation shaft 14, and opens and closes the water flow path 16 to the branch pipe. The upper portion of the valve chamber 13 is an open hole 18 and is normally closed by a cap 17.

  First, when the water faucet is attached to the main pipe 2 of the water pipe where the water faucet 1 is installed by the saddle 12 attached to the water faucet, the cap 17 is removed, and the ball valve 15 is opened, the upper part of the water faucet Since a through hole from the open hole 18 to the main pipe 2 is opened through the valve hole 19, a water through hole is drilled 21 into the main pipe 2 through the open hole by a punching machine (not shown).

  When the water passage hole is drilled, water overflows into the drainage channel provided in the drilling machine due to the water pressure of the main pipe 2, and impurities such as chips from the drilling are discharged together with the overflowing water, so the ball valve 15 is closed. The adapter 55 is screwed into the screwing portion 45 where the cap 17 is screwed, and the insertion rod 4 with the core member 3 fixed is joined to the insertion machine 5 to screw the insertion machine 5. A threaded rod 46 is screwed onto the portion 51, and the ball valve 15 is opened. By opening the bulb valve 15, the through hole from the water faucet upper opening 18 to the main pipe 2 through the valve hole 19 is opened again.

  The insertion rod 4 is provided at its upper end with a threading rod 46 that engages with the screw hole 51 of the insertion machine 5, and at the upper part, the projecting angle a (FIG. 4) is capable of pressing and crushing the upper end expanding taper surface of the core member 3. 7 has a pressing flange 41 provided at the same angle position) and a pressing flange base portion 42 having a slightly larger diameter than the main body lower cylindrical portion 49 constituting the base portion. The lower end of the lower cylindrical portion 49 of the main body of the main body is provided with two stages of core member supporting flanges 43 having the same diameter as that of the upper surface 42 and having a predetermined width formed on the tapered surface b, and a supporting groove 47 is set in the middle of the two stages. A support taper surface 48 is attached to the portion, and a detachable fastening head 44 is attached to the lower end surface.

  As a preferred embodiment of the projecting angle of each step portion, the dimensions and angles are as shown in FIGS. 2 to 4 for the nominal diameter 25 and FIGS. 5 to 7 for the nominal diameter 50 according to the standard dimensions of each core member. Is set. In addition, the unit of the number which shows a dimension is millimeter, and the code | symbol of R1, R0.5 shows the roundness degree of R process.

  That is, the protrusion angle a of the upper end portion of the core member of the pressing flange 41 is approximately 20 degrees, and the protrusion angle of the support flange taper surface is approximately 20 degrees because the sign cannot be written in FIGS. 4 and 7. (Because sign writing is not possible on the drawing, it is displayed at the vertical or isotopic position) is about 10 degrees, and the tilt angle of the lower end support taper surface (because sign writing is not possible on the drawing, displayed at the vertical angle position) is about 25 degrees It is set and R processing is performed on the curved flange portion of each flange.

  The insertion machine 5 is provided with a pushing rod 54 fitted in the machine, and a screwing portion 51 is provided at the lower end of the pushing rod 54 and is screwed with a screwing rod 46 at the upper end of the insertion rod to join the insertion rod 4. The lower end of 5 is an insertion rod accommodating portion 52 that accommodates the insertion rod and is screwed with the upper end of the adapter 55, and the adapter 55 is screwed with the outer threading portion 45 of the water faucet upper opening 18. A screwing portion 53 for fixing the insertion machine 5 on the water faucet is provided, and the insertion rod 4 fitted with the core member 3 is forcibly press-fitted into the main pipe perforating portion 21 from the water faucet water passage 11. The adapter 55 can be adapted to both the insertion rods having a nominal diameter of 25 and 50 by converting this.

  Next, the mounting mode to the insertion rod 4 will be described according to the specifications of the core member 3. First, an outer sleeve and an inner sleeve to be fitted to the outer sleeve, and a fitting core member of the specification A, which is deformed to be in close contact with the hole wall by press-fitting the inner sleeve into the outer sleeve and being in close contact with the hole wall. I will explain things.

  The core member 3A expands the diameter of the resin sleeve A2 and inserts the resin sleeve A2 on the inner diameter side of the rubber sleeve A3, and inserts a rigid metal sleeve A1 from the upper end opening A21 of the resin sleeve A2. The diameter of the rubber sleeve A3 covered or coated on the lower outer peripheral surface of the upper end large diameter portion A22 is expanded and press-fitted to the main pipe punching portion 21.

  When the core member 3A is mounted on the insertion rod 4, first, the convex portion formed on the inner peripheral side of the upper end opening A21 of the resin sleeve A2 covered or coated with the rubber sleeve A3 is used as the outer periphery of the lower end of the metal sleeve A1. The resin sleeve A2 and the metal sleeve A1 are temporarily assembled and integrated by engaging with the concave engagement grooves formed in the.

  This is inserted through the insertion rod 4, and the inner diameter of the metal sleeve A1 is supported by at least one of the support flanges 43x and 43y provided in two stages of the insertion rod 4, and the lower end condensation portion A24 of the resin sleeve A2 is supported by the lower support flange. The resin sleeve A2 is held from the tapered surface 43yt of the lower support flange of the insertion rod to the main body lower cylindrical portion 49 below the support flange 43.

  At this time, without removing the fastening head 44, the claw-like projections (lower end condensation portion A24) formed at the lower end of the resin sleeve A2 are expanded by the elasticity of the resin by the tapered surface formed on the fastening head 44. Mounted on the insertion rod 4.

  Therefore, when the insertion rod 4 is pushed down by the pushing rod 54 of the insertion machine 5, the upper end flange A11 of the metal sleeve A1 is pressed against the pressure flange 41 of the insertion rod, and the metal sleeve A1 is lowered into the resin sleeve A2. The core member 3A is press-fitted and attached to the main pipe punching part 21 by expanding the diameter of the resin sleeve A2 and the rubber sleeve A3 in conjunction with the lowering of the insertion bar lower end support flange taper part 43yt of the insertion bar 4.

  An O-ring A23 is locked to the upper-diameter portion A22 of the resin sleeve, and the O-ring A23 is pressed against the inner wall of the water faucet water inlet 11 by press-fitting the core member 3A, so that the main pipe perforated portion 21 and the water faucet The water is stopped.

  Next, among the fitting type core members, those of the specification B will be described. The core member 3B is composed of a metal sleeve B1 and a resin sleeve B2. The metal sleeve B1 has a flange B11 at the upper end and a lower portion corresponding to three steps B12, B13, corresponding to the insertion step into the resin sleeve B2. B14 is set.

  The resin sleeve B2 is stepped by a large-diameter outer peripheral portion B21 and a small-diameter outer peripheral portion B22, and the large-diameter outer peripheral portion B21 is press-fitted into the space between the main pipe punching portion 21 and the water faucet. The small-diameter outer peripheral portion B22 is press-fitted into the inner wall of the main perforated portion 21.

  Further, the inner diameter of the resin sleeve B2 is provided with a step by the large-diameter inner peripheral portion B23 and the small-diameter inner peripheral portion B24. When the metal sleeve B1 is inserted and lowered into the resin sleeve B2, first, the tip step portion of the metal sleeve B1. B14 is inserted and expanded from the large-diameter inner peripheral portion B23 to the small-diameter inner peripheral portion B24 to assist the press-fitting and expanding diameter by the middle stepped portion B13, and the press-fitting and expanding by the middle stepped portion B13 is the press-fitting and expanding of the base stepped portion B12. By assisting the diameter, the metal sleeve B1 is smoothly inserted and lowered into the resin sleeve B2.

  Since the core member 3B is configured so that the total length before insertion of the metal sleeve B1 and the resin sleeve B2 is short, the sleeve member B3 is engaged with the support groove 47 of the support flange portion of the insert rod 4 for mounting to the insert rod 4. Thus, the main body lower cylindrical portion 49 and the lower portion of the lower portion of the support flange 43 remain protruding from the core member 3B.

  Therefore, in the case of the core member 3B, the insertion rod 4 to which the core member is fixed is joined to the insertion machine 5, the screwing portion 51 of the insertion machine 5 is screwed, the ball valve 15 is opened, and the water faucet When the insertion rod 4 is inserted into the main pipe 2 from the upper open hole 18 through the valve hole 19, the protruding portion of the insertion bar 4 from the core member 3 </ b> B passes through the main pipe perforation 21 and enters the main pipe 2. Protruding.

  Therefore, when the insertion rod 4 is pushed down by the pushing rod 54 of the insertion machine 5, first, the upper end flange B11 of the metal sleeve B1 is pressed against the pressing flange 41 of the insertion rod, and the metal sleeve B1 is pushed into the resin sleeve B2. The large-diameter outer peripheral portion B21 is expanded and press-fitted into the main wall perforated portion 21 and the inner wall of the lower water passage 23 of the water faucet while the resin sleeve B2 is expanded. The core member 3 </ b> B is press-fitted and fitted into the main pipe punching portion 21 by being press-fitted into the inner wall of the portion 21.

  Next, a description will be given of a single core member having the specification C, in which a single core member is inserted into the insertion portion, a required portion is deformed by crushing or the like, and is closely attached to the insertion hole wall. This core member 3C is provided with a flange C11 whose lower surface abuts on the outer peripheral surface of the main pipe punching portion 21 at a predetermined portion of the cylindrical main body C1 that gradually decreases in diameter downward, and the upper cylindrical body C12 of the flange C11. An elastic seal member C2 having a predetermined thickness is covered on the lower cylinder C13.

  The upper cylindrical body C12 and the elastic seal member C21 covered by the upper cylindrical body C12 are press-fitted into the inner wall of the water faucet water passage port 11 by mounting the core member 3C, and the lower cylindrical body C13 and the elastic body covered by the upper cylindrical body C12. The seal member C22 is press-fitted into the inner wall of the main pipe piercing portion 21.

  Further, the upper end of the upper cylinder C12 is formed in an opening shape C14 that is slightly open, and the lower end of the lower cylinder C13 is formed in a condensation shape C15 that is slightly reduced in diameter.

  Since the core member 3C is not changed in its entire length before and after mounting press-fitting as a single body, and is configured to have a short overall length, the cylindrical body C1 is inserted through the insertion rod 4 and attached to the insertion rod 4. The lower end portion of the side cylinder C13 is locked by the support taper surface 48 and the fixing head 44 at the lower end portion of the insertion rod main body. Therefore, in the case of the core member 3C, the core member is not attached to the support surface above the lower support flange surface 43 of the insertion rod 4 to which the core member is fixed, and is left blank.

  Therefore, when the insertion rod 4 is lowered by the pushing handle of the insertion machine 5, the core member 3 </ b> C is inserted into the water faucet water passing portion 11 and the main pipe perforation portion 21 while being held by the insertion rod 4. The upper part of the lower cylindrical body C13 is locked to the upper edge of the main pipe piercing portion 21 in a state of projecting into the main pipe 2, and a temporary stable fitting state of the core member 3C is set.

  Subsequently, the support taper surface 48 of the insertion rod 4 is press-fitted and inserted into the condensed shape C15 at the lower end of the core member 3C by pressing, and the lower portion of the lower cylinder C13 is evacuated inside the main pipe 2, and immediately after the insertion rod 4, the lower support flange surface 43 causes the lower cylindrical body C <b> 13 and the elastic seal member C <b> 22 to be in contact with the inner wall of the main perforated portion 21 in diameter expansion.

  Furthermore, when the insertion rod 4 is pushed down, the opening shape portion C14 of the core member 3C is expanded by a tapered surface due to the pressing angle 41 of the pressing flange 41 and is expanded and pressed against the inner wall of the water faucet water inlet 11; The core member 3 </ b> C is press-fitted and attached to the main pipe punching portion 21.

  Next, a description will be given of a single core member of the specification D, in which a single core member is inserted into the insertion portion, and a required portion is deformed by crushing or the like to be brought into close contact with the insertion hole wall. The core member 3D is made of a plastic metal material such as pure copper or phosphorous deoxidized copper, and the outer peripheral surface is pressed against the top D11 of the cylindrical main body D1 to which the coating layer D2 of an elastic material is fixed by baking of rubber or the like. A bent structure D12 that is scheduled to be bent is provided.

  A flange portion D13 that supports the core member is formed on the upper surface of the water main pipe 2 to be mounted at the lower portion of the top bent structure D12. In addition, the notch | indentation recessed part D14 corresponding to the curved surface shape of the water main pipe 2 upper surface with which the lower surface of flange part D13 is mounted | worn is formed, and a core member can be fitted and fitted to the curved surface shape of the water main pipe 2 upper surface. It is like that.

  The bent structure D12 is configured to have a widened end D15 that protrudes slightly outward and bends, and is bent and expanded outwardly by pressing the top portion D11, and the widened end further protrudes and presses against the inner wall of the water faucet water inlet 11. Thus, the lower end of the core member 3D is a narrowed portion D18 formed by a protruding edge portion D17 protruding in a bowl shape on the inside.

  Since the core member 3D is not changed in its entire length before and after mounting press-fitting as a single body, and the entire length is short, the cylindrical body D1 is attached to the insertion rod 4 in the same manner as the core member 3D. The lower end protruding edge portion D16 of the upper end bent structure D12 is covered with the lower support flange surface 43, and the narrowed portion D18 formed by the protruding edge portion D17 is connected to the support taper surface 48 at the lower end portion of the insertion rod body. It is locked by the fastening head 44. Accordingly, also in the case of the core member 3D, the core member is not attached to the support surface above the lower support flange surface 43 of the insertion rod 4 to which the core member is fixed, and is left blank.

  The cylindrical core member 3D inserted into the water faucet water inlet 11 and the main pipe punching portion 21 by the insertion rod 4 is narrowed by the pressing tapered portion 48 of the insertion rod 4 by the protruding edge D17 at the lower end of the core member 3D. The insertion rod 4 descends until the top portion D11 abuts against the pressing flange 41, and the support flange surface 43 and the pressing flange base portion 42 are sequentially attached to the top portion D11. The core member is press-fitted and the diameter of the core member is increased, and the outer peripheral surface of the core member is pressed into contact with the water faucet water inlet 11 and the hole wall of the main pipe punching portion 21.

  The cylindrical main body 3D to which the coating layer D2 is fixed is enlarged in diameter by being inserted into the support flange surface 43 by pressing from the upper portion by the pressing rod 54 and pressed into the pressing flange base 42, and is pressed against the insertion peripheral wall and protruded. The edge portion D17 is turned over and is engaged with the lower edge of the main pipe punching portion 21.

  Since the pressing flange base portion 42 of the insertion rod 4 is inserted to the flange portion D13 of the core member and reaches the top portion D11 of the core member 3, the flange D13 of the core member is contacted and supported by the peripheral surface of the main body drilling portion. As a force point, the pressing rod 41 of the insertion rod is further pressed strongly, and the bent structure D12 is bent and expanded outward and bent, and the widened end D15 is pressed against the hole wall of the water faucet water inlet 11.

  On the other hand, the support flange surface 43 and the pressing flange base portion 42 of the insertion rod are inserted through the projecting edge portion D17 that is sequentially valgus, and the inner diameter of the core member 3D is expanded to the diameters of the support flange surface 43 and the pressing flange base portion 42 as a whole. Therefore, it is possible to pass the fastening head 44 having the same diameter as this, and in some cases, slightly smaller diameter, and the insertion rod 4 can be removed simultaneously with the completion of the mounting of the core member.

  Further, since the coating layer D2 made of an elastic material is fixed to the outer peripheral surface of the projecting edge portion D17, the insertion rod 4 is pulled up after insertion of the support flange surface 43 and the pressing flange base portion 42 due to the reduced diameter force. 44, the diameter is reduced from the diameter of the fastening head 44, and the protruding edge portion D17 is brought into close contact with the lower edge of the main pipe punching portion 21 by lifting the fastening head having a slightly larger diameter.

  Since the present invention is configured as described above, it is possible to cope with the case where the deformation form of the upper end portion of the core member is an expansion deformation or a pressure crushing deformation. If the member length is different at the mating completion stage, the core member is supported by the pressing flange and the lower end support taper surface, and the member length changes between the insertion stage to the insertion part and the mating completion stage like a single core In the case where the member length is short, the core member is supported by the two-stage support flange and the tip fastening head, and it is possible to cope with the mounting of the contact core having different specifications.

Overall longitudinal side view of the water faucet showing the relationship between the water faucet and the distribution mains perforation The longitudinal section of the tip of the insertion machine showing the relationship between the insertion machine and the insertion rod, the water faucet, and the main pipe perforation part. The right half is an explanatory view of the state where the insertion rod is removed. Side view of the entire part of the insertion rod with a nominal diameter of 25 with the fastening head removed Part M enlarged view of FIG. 3 for explaining the pressing flange protrusion angle Similarly, an enlarged view of the portion N in FIG. Side view of the entire part of the insertion rod with a nominal diameter of 50 with the fastening head removed Part M enlarged view of FIG. 6 for explaining the pressing flange protrusion angle Similarly, the N-part enlarged explanatory view of FIG. About the A specification core member, the right half is in the state when the core member is attached to the insertion rod, the left half is inserted by forcibly inserting the insertion rod into the water faucet and water distribution main pipe perforation, and the required part of the core member is inserted. Explanatory drawing which showed the operating rod of an insertion stick and a core member as a state where it changed and installed About the B specification core member, the right half is in the state when the core member is attached to the insertion rod, the left half is inserted by forcibly inserting the insertion rod into the water faucet and water distribution main body drilling part, and the required part of the core member is inserted. Explanatory drawing which showed the operating rod of an insertion stick and a core member as a state where it changed and installed For the C specification core member, the right half is in the state when the core member is attached to the insertion rod, the left half is inserted by force-inserting the insertion rod into the water faucet and water distribution main pipe drilling part, and the required part of the core member is inserted. Explanatory drawing which showed the operating rod of an insertion stick and a core member as a state where it changed and installed For the D specification core member, the right half is in the state when the core member is attached to the insertion rod, the left half is inserted by forcibly inserting the insertion rod into the water faucet and distribution main pipe perforation, and the required part of the core member is inserted. Explanatory drawing which showed the operating rod of an insertion stick and a core member as a state where it changed and installed

Explanation of symbols

1 Water faucet body 11 Water faucet water inlet 12 Fastening saddle 13 Water faucet valve chamber 14 Ball valve rotation shaft 15 Ball valve 16 Water passage to branch pipe 17 Cap 18 Water faucet upper opening hole 19 Ball valve valve Hole 2 Main pipe of water supply pipe 21 Main pipe perforated portion 22 Main pipe inner wall lining layer 3 Core member 3A Core member of specification A A1 Metal sleeve of specification A core member A11 Metal sleeve upper end flange of specification A core member A2 Specification A core member Resin Sleeve A21 Specification A Core Member Resin Sleeve Top Opening A22 Specification A Core Member Resin Sleeve Top Diameter A23 Specification A Core Member Resin Sleeve O-ring A24 Specification A Core Member Resin Sleeve Bottom Condensing A3 Specification Rubber sleeve for core member A 3B Core member for specification B B1 Metal sleeve for specification B core member B11 Metal sleeve for specification B core member End flange B12 Metal sleeve base step portion of specification B core member B13 Metal sleeve middle step portion of specification B core member B14 Metal sleeve tip step portion of specification B core member B2 Resin sleeve of specification B core member B21 Resin of specification B core member Large sleeve outer circumference B22 Resin sleeve small diameter outer circumference of specification B core member B23 Plastic sleeve large diameter inner circumference of specification B core member B24 Resin sleeve small diameter inner circumference of specification B core member 3C Core member of specification C C1 Specification C Cylindrical body of the core member C11 Specification C core member collar C12 Specification C core member collar upper cylinder C13 Specification C core member collar lower cylinder C14 Specification C core member upper end opening shape C15 Specification C core member Lower end condensation part C2 elastic seal member of specification C core member C21 elastic upper part of cylinder covering cylindrical portion of specification C core member C22 Specified C core member collar lower side cylinder covering elastic sealing member 3D Specification D core member D1 Specification D core member cylindrical body D11 Specification D core member cylindrical body top D12 Specification D core member top bent structure D13 Specified D core member flange D14 Specified D core member notch recess D15 Spec D core member top bent structure widened end D16 Spec D core member top bent structure bottom edge D17 Spec D core member cylindrical body Lower end protruding portion D18 Narrowed portion of the cylindrical main body lower end protruding portion of the specification D core member D2 Coating layer of the specification D core member 4 Insertion rod 41 Pressing flange 42 Pressing flange base 43x Insertion rod core member upper support flange portion 43y Insertion rod Core member lower support flange portion 43xt Insertion rod upper support flange taper portion 43yt Insertion rod lower support flange taper portion 4 Fastening Head 45 Threaded Portion at the Top of the Water Tap 46 Threaded Fitting at the Top of the Insertion Rod 47 Support Groove on the Supporting Flange 48 Support Tapered Surface at the Bottom of the Insertion Rod 49 Insertion Rod Main Body Lower Cylindrical Part 5 Inserting rod screwing part 52 Inserting bar receiving part 53 Screwing part with water faucet top 54 Pushing rod 55 Adapter a Pushing angle of pressing flange (shown in the same angle in the figure)
b Projecting angle of support flange surface (shown in the same angle in the figure)
d Support taper bottom surface tilt angle at the lower end of the insertion rod

Claims (3)

In the upper part, there is a pressing flange provided with a protruding angle capable of pressing and crushing the upper end portion of the core member, and a pressing flange base part having a slightly larger diameter than the lower cylindrical part of the main body constituting the base part. A core member support flange having a predetermined width and having the same diameter as the base of the pressing flange and having upper and lower portions formed in a tapered surface is provided in two stages, a support groove is set in the middle part of the two stages, and the lower cylindrical part of the main body is provided therebelow And a support taper surface at the lower end, and a detachable fastening head fitted to the lower end surface of the main body.   The upper core member upper end widening taper surface protrusion angle is set to 10 to 20 degrees, each protrusion angle of the support flange taper surface is set to 5 to 15 degrees, and the inclination angle of the lower end support taper surface is set to 25 degrees or less. The insertion rod corresponding to the multi-spec contact core according to claim 1, wherein the curved flange portion is subjected to R machining. The upper part of the core member, which has a base that is slightly larger in diameter than the lower cylindrical part of the main body, is provided with a pressing flange with an expanded taper surface that can be crushed, and the lower part of the pressing flange has the same diameter as the base of the pressing flange. The core member support flange with a predetermined width formed on the tapered surface is provided in two stages, and the support taper surface is provided at the lower end of the main body in which the support groove is set in the two stages , and the lower end face is configured to be detachable. An insertion rod fitted with a fastening head is used, and the cylindrical core member is supported and fitted to the insertion rod by a support flange provided in two stages and a lower end support taper surface or a fastening head. And the main pipe perforated part is inserted and pushed, and the top part of the core member is expanded or collapsed by a pressing flange, or a metal member is inserted into a flexible material to be in close contact with the water faucet water passage edge. Wearing a faucet close-up core Act