JP2006144948A - Pipe connection structure - Google Patents

Pipe connection structure Download PDF

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Publication number
JP2006144948A
JP2006144948A JP2004337124A JP2004337124A JP2006144948A JP 2006144948 A JP2006144948 A JP 2006144948A JP 2004337124 A JP2004337124 A JP 2004337124A JP 2004337124 A JP2004337124 A JP 2004337124A JP 2006144948 A JP2006144948 A JP 2006144948A
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JP
Japan
Prior art keywords
pipe
female
male
rib
semi
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Pending
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JP2004337124A
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Japanese (ja)
Inventor
Akira Aoki
亮 青木
Original Assignee
Piolax Inc
株式会社パイオラックス
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Priority to JP2004337124A priority Critical patent/JP2006144948A/en
Publication of JP2006144948A publication Critical patent/JP2006144948A/en
Application status is Pending legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00Flanged joints
    • F16L23/04Flanged joints the flanges being connected by members tensioned in the radial plane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/1225Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive pipe connection structure for easily and reliably connecting pipes to each other with simple operation without slip-off. <P>SOLUTION: The connection structure comprises a male pipe 10 having a male side flange 11, a female pipe 20 having a diameter enlarged portion 21 and a female side flange 24, a seal ring 30, and a pipe clamp 40. The pipe clamp 40 has a pair of semi-cylindrical members 41, 42 which are connected at their ends to each other via a hinge 43 and which have clips 44, 47 at the other ends. On the inner periphery of each semi-cylindrical member, there are a male side rib 49 which engages with the male side flange 11, a support portion 51 which engages with the female side flange 24, and a female side rib 50 which engages with the diameter enlarged portion 21. The male side rib 49 and the female side rib 50 do not overlap each other in view from the axial direction, and the width of the male side rib 49 is wider than that of the female side rib 50. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pipe connection structure capable of reliably connecting pipes, for example, when pipes are installed in an automobile.

  As a connecting structure for pipes for radiators, heater units, fuel supply systems, etc. in automobiles, the end of one pipe to be connected is enlarged in diameter, a flange is formed on the end face, and the other to be connected A flange is formed at a position away from the end of one pipe by a predetermined length, a seal ring is attached to the outer periphery closer to the end than the flange of the other pipe, and the other pipe is inserted into the enlarged diameter part of one pipe. It is known that both are sealed through a seal ring, and a clamp is put on the outer periphery of the flange of one pipe and the flange of the other pipe, and both flanges are sandwiched to prevent them from coming off.

  And as said clamp, two metal semi-cylindrical members are connected so that rotation is possible via a hinge, and each said flange is inserted in the slit of the circumferential direction provided in each semi-cylindrical member. A semi-cylindrical member is closed and connected by a fastener.

Patent Document 1 listed below is a pipe joint that connects both pipes in a state in which flanges projecting to the outer peripheral edge of the opposing portion of the pipe to be connected are abutted, and the pipe joint is substantially semicircular. It consists of a pair of clamp pieces, and the inner periphery of both clamp pieces is formed with a groove that fits with both flanges when both pipes are abutted, and both ends of both clamp pieces are connected to each other. A pipe joint in which is formed is disclosed.
Japanese Patent Laid-Open No. 9-159086

  However, two metal semi-cylindrical members are rotatably connected via hinges, and the flanges are inserted into circumferential slits provided in the semi-cylindrical members to close the two semi-cylindrical members. Pipe clamps that are connected by fasteners need to be fixed with fasteners such as bolts and nuts, and because they are made of metal, they are heavy, bulky, difficult to handle, and increase the manufacturing cost. there were.

  Moreover, in the pipe clamp of the said patent document 1, since the both ends of a pair of clamp piece must be engaged and connected, respectively, attachment work becomes complicated, and since it consists of two parts, the problem that manufacturing cost also becomes high There was a point.

  Accordingly, an object of the present invention is to provide a pipe connection structure that can be easily connected with one touch without failing to be disconnected when connecting pipes, and the cost can be reduced.

In order to achieve the above object, a first aspect of the present invention is a male pipe having a male flange at a predetermined distance from the connection end,
A female pipe having a female flange at the forefront, in which a diameter-expanded portion is formed with a stepped portion toward the connecting end,
A seal ring disposed between the male pipe and the female pipe;
A pipe clamp that holds the male pipe and the female pipe in a state where the male pipe and the female pipe are connected so as not to leave the two,
The tip of the male pipe and the male side flange are inserted into the inner circumference of the enlarged diameter part of the female pipe,
The seal ring is disposed between the outer circumference closer to the tip than the male flange of the male pipe and the inner circumference of the enlarged diameter portion of the female pipe,
The pipe clamp has a pair of semi-cylindrical members,
A pair of semi-cylindrical members, one end of which is connected via a hinge, the other end is provided with a clip that is detachably connected to each other,
On the inner periphery of each semi-cylindrical member, a male rib that engages with the male flange of the male pipe, a step that engages with the female flange of the female pipe, and an enlarged step of the female pipe are engaged. Female side ribs are provided,
The male side rib and the female side rib are formed so as not to overlap each other when viewed from the axial direction, and the circumferential width of the male side rib is formed wider than the circumferential width of the female side rib. A characteristic pipe connection structure is provided.

  According to the pipe mounting structure of the present invention, when the connection end of the male pipe is inserted into the inner periphery of the connection end of the female pipe while the seal ring is attached to the outer periphery of the connection end of the male pipe, The pipe is disposed between the outer circumference closer to the tip than the male flange of the pipe and the inner circumference of the enlarged diameter portion of the female pipe, and both pipes are sealed and connected.

  When the pipe clamp is opened and attached to the outer periphery of the female flange of the female pipe, and the clips provided on each semi-cylindrical member are engaged and connected in an annular shape, the male flange of the male pipe is engaged with the male rib. Then, the male pipe is prevented from coming off, the female flange of the female pipe is engaged with the step portion of the inner periphery of the semi-cylindrical member, and the enlarged diameter portion of the female pipe is engaged with the female side rib. It is prevented from coming off. In this way, the female pipe and the male pipe can be easily and reliably connected with one touch.

  Moreover, since the circumferential width of the male side rib is formed wider than the circumferential width of the female side rib, the width of the male side rib extended to be engaged with the male side flange is increased. The strength can be ensured by widening.

  Furthermore, since the male side rib and the female side rib are formed so as not to overlap each other when viewed from the axial direction, it is possible to remove the mold at the time of molding, and the pipe clamp can be molded integrally, so that the cost can be reduced. .

  According to a second aspect of the present invention, there is provided a pipe connection structure according to the first aspect, wherein the outer periphery of the enlarged diameter portion of the female pipe is in contact with the inner periphery of the pipe clamp in a state where the pipe clamp is mounted. .

  According to this, when the outer periphery of the enlarged diameter portion of the female pipe abuts on the inner periphery of the pipe clamp, the engagement between the male flange and the male rib and the step between the female flange and the inner periphery of the semi-cylindrical member Engagement and engagement between the diameter-expanded step of the female pipe and the female-side rib can be ensured, respectively, and the connection strength between the two pipes can be increased.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the inner periphery of each semi-cylindrical member is provided with a support base projecting on the inner diameter side so as to contact the outer periphery of the expanded diameter portion of the female pipe. The connection structure of the pipe currently provided is provided.

  According to this, by providing a support base portion projecting on the inner diameter side on the inner periphery of each semi-cylindrical member, this support base portion is brought into contact with the outer periphery of the enlarged diameter portion of the female pipe, thereby supporting the support base portion. Thus, it is possible to secure an inner diameter at which the female flange of the female pipe can be inserted at a position adjacent to the axial direction. And a female side flange is pinched | interposed between the end surface of a support base part, and a male side rib, and is hold | maintained without backlash.

  According to a fourth aspect of the present invention, there is provided the pipe connection structure according to the third aspect, wherein the outer side of the support base part forms a recess, and the female rib extends from the end surface of the support base part toward the inner diameter direction. To do.

  According to this, by making the outer side of the support base part into a concave part, sink marks or the like at the time of molding are prevented, and the connection strength of the female side rib extending from the end surface of the support base part toward the inner diameter direction is improved. be able to.

  A fifth aspect of the present invention is the invention according to any one of the first to fourth aspects, wherein a male side rib and a female side rib are provided on each semi-cylindrical member, and the pipe clamp is closed in the axial direction. When it sees, it provides the connection structure of the pipe made into the shape by which the male side rib and the female side rib were alternately arrange | positioned along the circumferential direction.

  According to this, the male-side rib and the female-side rib provided on each semi-cylindrical member individually sandwich the male flange of the male pipe and the diameter-expanded step portion of the female pipe, so that the semi-cylindrical Since no load acts between the members, it is possible to prevent the pipe from being released due to the clip being released.

According to the pipe mounting structure of the present invention, the female pipe and the male pipe can be easily and securely connected with one touch without the pipe coming off. Is formed wider than the circumferential width of the female side rib, so that the width of the male side rib extended to be engaged with the male side flange can be widened to ensure its strength. it can.

  Furthermore, since the male side rib and the female side rib are formed so as not to overlap each other when viewed from the axial direction, it is possible to remove the mold at the time of molding, and the pipe clamp can be molded integrally, so that the cost can be reduced. .

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the pipe connection structure of the present invention includes a male pipe 10, a female pipe 20 into which the male pipe 10 is inserted, and a seal interposed between the male pipe 10 and the female pipe 20. The ring 30 includes a pipe clamp 40 that maintains a connection state between the male pipe 10 and the female pipe 20. The seal ring 30 has an annular shape and is formed from an elastic material such as rubber.

  The male pipe 10 is formed in a cylindrical shape with the same outer diameter as that of the female pipe 20, and at a position away from the connecting end, which is an end on the side connected to the female pipe 20, at the outer side in the circumferential direction. The male side flange 11 protrudes.

  The female pipe 20 has a cylindrical shape, and has a diameter-expanding portion 21 that expands in a stepped shape from the middle in the longitudinal direction toward a connection end that is an end on the side connected to the male pipe 10. is doing. The diameter-expanded portion 21 has a diameter that is slightly larger than the inner diameter of the female pipe 20 and is formed with an inner diameter that matches the outer diameter of the connection end of the male pipe 10. It further includes a second enlarged-diameter portion 23 that is further enlarged from the portion 22 and formed with an inner diameter that matches the outer diameter of the male flange 11 of the male pipe 10. A female flange 24 extends from the end of the second enlarged diameter portion 23 in the outer circumferential direction.

  As shown in FIGS. 2A, 2B, 3A, and 3B, the pipe clamp 40 includes a pair of semi-cylindrical members, that is, first semi-cylindrical members 41 each having a semi-cylindrical shape. And a second semi-cylindrical member 42, which are connected by a hinge 43.

  The first semi-cylindrical member 41 is formed with a female clip 44 that protrudes from the middle in the circumferential direction to the outer diameter side and is bent in an L shape at the end opposite to the hinge 43. The tip of the female clip 44 is provided with a tapered tapered claw portion 44a that protrudes toward the inner diameter side, and a fitting recess 44b is formed at the base portion of the claw portion 44a. The fitting recess 44b is a portion into which a male clip 47 of the second semi-cylindrical member 42 described later enters and engages.

  Further, the end in the direction opposite to the female clip 44 is further extended in the circumferential direction than the connecting portion of the hinge 43, and an engagement protrusion 45 protruding outward is formed at the tip thereof. ing.

  An end portion of the second semi-cylindrical member 42 on the hinge 43 side is provided with an arcuate overlapping portion 46 that protrudes toward the outer diameter side, and the end portion of the overlapping portion 46 protrudes toward the inner diameter side and protrudes from the engagement portion 46. A claw portion 46 a that engages the mating protrusion 45 is formed.

  Further, a male clip 47 is formed at the end of the second semi-cylindrical member 42 opposite to the hinge 43, and the male clip 47 has a tapered tapered claw 47a projecting to the outer diameter side. is doing. When the male clip 47 is inserted into the fitting recess 44 b of the female clip 44, the claw portion 47 a of the male clip 47 is engaged with the claw portion 44 a of the female clip 44.

  In addition, a rib-like finger pad 48 that protrudes in the outer diameter direction is formed on the base side of the male clip 47 of the second semi-cylindrical member 42. The finger contact portion 48 is a portion where a finger is applied when the pipe clamp 40 is closed or opened.

  One end of the hinge 43 is connected to a position at a predetermined distance from the engaging protrusion 45 of the first semi-cylindrical member 41, and the other end is connected to the tip of the overlapping portion 46 of the second semi-cylindrical member 42. The first semi-cylindrical member 41 and the second semi-cylindrical member 42 are connected, and the pipe clamp 40 can be opened and closed elastically.

  A fan-shaped male rib 49 that engages with the male flange 11 of the male pipe 10 protrudes from one axial end surface of the first semicylindrical member 41 and the second semicylindrical member 42. It is installed.

  Further, a support base 51 is formed that protrudes from the position slightly away from the male rib 49 toward the inner diameter side and extends to the other end surfaces in the axial direction of the first semi-cylindrical member 41 and the second semi-cylindrical member 42 ( (See FIGS. 3C and 3D). The support base 51 is a portion that comes into contact with the second enlarged diameter portion 23 of the female pipe 20 when the clamp 40 is closed.

  Furthermore, a concave portion 52 is formed at a predetermined depth along the axial direction from the other end surfaces of the first semi-cylindrical member 41 and the second semi-cylindrical member 42 on the outer diameter side of the support base 51. A fan-shaped female rib 50 that engages with the first enlarged diameter portion 22 of the female pipe 20 extends in the inner diameter direction from the end surface of the support base portion 51.

  Further, a first step portion 51 a is formed between the support base portion 51 and the inner peripheral surface, and a second step portion 51 b is formed between the support base portion 51 and the female side rib 50.

  The male side rib 49 and the female side rib 50 described above are formed so as not to overlap each other when viewed from the axial direction, and the circumferential width of the male side rib 49 is larger than the circumferential width of the female side rib 50. Is also widely formed.

  In the case of this embodiment, a pair of male ribs 49 are formed at one end of the first semi-cylindrical member 41, and a female rib 50 is formed at the middle of the other end. The female ribs 50 are arranged between the male ribs 49, 49 when viewed from the axial direction. Further, on one end surface of the second semi-cylindrical member 42, a male side rib 49 is formed at the center portion thereof, and on the other end surface, female side ribs 50 are formed at both end portions thereof. The female ribs 50 are disposed on both sides of the male rib 49. When viewed from the axial direction with the pipe clamp 40 closed, the male ribs 49 and the female ribs 50 are alternately arranged along the circumferential direction.

  The pipe clamp 40 having the above configuration is made of a synthetic resin and is integrally formed by injection molding or the like.

  Next, the procedure and operation of connecting the male pipe 10 and the female pipe 20 with the pipe connection structure of the present invention configured as described above will be described.

  First, the seal ring 30 is inserted from the connection end portion side of the male pipe 10, and the seal ring 30 is attached to the outer periphery of the male pipe 10. In this state, the male pipe 10 is connected to the inner periphery of the connection end portion of the female pipe 20. Insert the connection end of. Then, the outer periphery of the connection end of the male pipe 10 enters the inner periphery of the first diameter-expanded portion 22 of the female pipe 20, while the end surface in the axial direction is in contact with the inner periphery of the first diameter-expanded portion 22. While the male pipe 10 is positioned, the outer periphery of the male flange 11 enters the inner periphery of the second enlarged diameter portion, and the seal ring 30 is held between the male flange 11 and the inner periphery of the second enlarged diameter portion 23. The male pipe 10 and the female pipe 20 are sealed and connected.

  Then, the pipe clamp 40 is opened, and the inner side of the male side rib 49 is brought into contact with the back side of the female side flange 24 (surface separated from the connection end), and the finger resting part 48 and the female side clip 44 are placed on the outer periphery. The pipe clamp 40 is closed so as to sandwich the two. Then, the male clip 47 of the second semi-cylindrical member 42 enters the fitting recess 44b of the first semi-cylindrical member 41, and the claw portion 44a of the female clip 44 and the claw portion 47a of the male clip 47 are mutually connected. The first semi-cylindrical member 41 and the second semi-cylindrical member 42 are connected in an annular shape (see FIG. 4).

  At this time, the male side flange 11 of the male pipe 10 engages with the male side rib 49, the male pipe 10 is prevented from coming off, and the female side flange 24 of the female pipe 20 is connected to the first step portion 51 a of the support base 51. While engaging, the 2nd enlarged diameter part 23 of the female pipe 20 engages with the 2nd step part 51b, and the female pipe 20 is also prevented from coming off.

  In this way, the female pipe 20 and the male pipe 10 can be easily connected with one touch easily and securely without detaching either pipe.

  By the way, since the male side rib 49 is formed longer than the female side rib 50, when the male pipe 10 is about to come off from the female pipe 20, a large bending moment acts on the male side rib 49. As shown, it becomes easy to bend.

  However, in this pipe clamp 40, the circumferential width of the male side rib 49 is formed wider than the circumferential width of the female side rib 50, so that it can be engaged with the male side flange 11. The strength of the long male side rib 49 can be ensured, the male side rib 49 becomes difficult to bend, and the male pipe 10 and the female pipe 20 can be stably connected.

  In addition, since the male side rib 49 and the female side rib 50 are formed so as not to overlap each other when viewed from the axial direction, it is possible to remove the mold at the time of molding, and the pipe clamp 40 can be molded integrally. Can be realized.

  Further, on the inner circumference of the first semi-cylindrical member 41 and the second semi-cylindrical member 42, a support base 51 extending from a position slightly away from the male rib 49 to the end in the axial direction projects toward the inner diameter side. Since the support base 51 abuts on the outer periphery of the second enlarged diameter portion 23 of the female pipe 20, the female flange 24 of the female pipe 20 is positioned adjacent to the support base 51 in the axial direction. An inner diameter that can be inserted can be secured. The female flange 24 is sandwiched between the end surface of the support base 51 and the male rib 49 and is held without play.

  Furthermore, as shown in FIG. 4, the inner periphery of the support base 51 is brought into contact with the outer periphery of the second enlarged diameter portion 23 of the female pipe 20 with the pipe clamp 40 attached. The portion 51 a is reliably engaged with the female flange 24 of the female pipe 20, and the second step portion 51 b is reliably engaged with the second diameter-expanded portion 23.

  Furthermore, since the recessed part 52 is formed in the outer side of the support base part 51, and the female side rib 50 is extended toward the internal diameter direction from the end surface of the support base part 51, while preventing the sink mark etc. at the time of shaping | molding, female The connection strength of the side rib 50 can be improved.

  Further, the first semi-cylindrical member 41 and the second semi-cylindrical member 42 are provided with male-side ribs 49 and female-side ribs 50, respectively, and when viewed in the axial direction with the pipe clamp 40 closed. Further, the male side ribs 49 and the female side ribs 50 are alternately arranged along the circumferential direction. Therefore, the male side flange 49 of the male pipe 10 and the second enlarged diameter portion 23 of the female pipe 20 are respectively sandwiched by the male side rib 49 and the female side rib 50 provided in each semi-cylindrical member. Thus, the load does not act between the semi-cylindrical members, so that the female clip 44 and the male clip 47 can be prevented from being released and the pipe clamp 40 being opened.

  Further, when the pipe clamp 40 is closed, the overlapping portion 46 of the second semi-cylindrical member 42 overlaps with the vicinity of the end portion of the first semi-cylindrical member 41 (see FIGS. 5A and 5B). For this reason, for example, when pipes having a slightly larger outer diameter than the inner diameters of the male side rib 49 and the female side rib 50 are connected, when the pipe clamp 40 is closed, the pipe clamp 40 is pressed against each pipe. Even if excessive stress is applied, the engagement protrusion 45 of the first semi-cylindrical member 41 is engaged with the claw portion 46a of the overlapping portion 46, so that the possibility of damage to the pipe clamp 40 is reduced. The rigidity of the clamp 40 can be increased.

  INDUSTRIAL APPLICABILITY The present invention can be used as a pipe connection structure that can be easily connected with one touch without failing to be disconnected when pipes are connected to each other, and the cost can be reduced.

It is a disassembled perspective view which shows one Embodiment of the connection structure of the pipe of this invention. The pipe clamp which comprises the connection structure of the said pipe is shown, (a) is a perspective view at the time of seeing from a male side rib, (b) is a perspective view at the time of seeing from a female side rib. The pipe clamp which comprises the connection structure of the said pipe is shown, (a) is a front view, (b) is a rear view, (c) is a top view, (d) is a right view. It is sectional drawing in the state which connected the pipe in the connection structure of the said pipe. The pipe connection structure in the pipe connection structure is shown, (a) is a cross-sectional view taken along the line AA in FIG. 4, and (b) is taken along the line BB in FIG. It is sectional drawing. It is sectional drawing which shows the state which connected the pipe in case the width | variety of the male side rib of a pipe clamp is narrow compared with the width | variety of a female side rib.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Male pipe 11 Male side flange 20 Female pipe 21 Expanded part 22 First expanded part 23 Second expanded part 24 Female side flange 30 Seal ring 40 Pipe clamp 41 First semi-cylindrical member 42 Second semi-cylindrical member 43 Hinge 44 Female side clip 44a Claw part 44b Fitting recess 45 Engaging protrusion 46 Overlapping part 46a Claw part 47 Male clip 47a Claw part 48 Finger rest part 49 Male side rib 50 Female side rib 51 Support base part 52 Recessed part

Claims (5)

  1. A male pipe having a male flange at a predetermined distance from the connecting end;
    A female pipe having a female flange at the forefront, in which a diameter-expanded portion is formed with a stepped portion toward the connecting end,
    A seal ring disposed between the male pipe and the female pipe;
    A pipe clamp that holds the male pipe and the female pipe in a state where the male pipe and the female pipe are connected so as not to leave the two,
    The tip of the male pipe and the male side flange are inserted into the inner circumference of the enlarged diameter part of the female pipe,
    The seal ring is disposed between the outer circumference closer to the tip than the male flange of the male pipe and the inner circumference of the enlarged diameter portion of the female pipe,
    The pipe clamp has a pair of semi-cylindrical members,
    A pair of semi-cylindrical members, one end of which is connected via a hinge, the other end is provided with a clip that is detachably connected to each other,
    On the inner periphery of each semi-cylindrical member, a male rib that engages with the male flange of the male pipe, a step that engages with the female flange of the female pipe, and an enlarged step of the female pipe are engaged. Female side ribs are provided,
    The male side rib and the female side rib are formed so as not to overlap each other when viewed from the axial direction, and the circumferential width of the male side rib is formed wider than the circumferential width of the female side rib. A characteristic pipe connection structure.
  2.   2. The pipe connection structure according to claim 1, wherein the outer periphery of the enlarged diameter portion of the female pipe is in contact with the inner periphery of the pipe clamp in a state where the pipe clamp is mounted.
  3.   The pipe connection structure according to claim 1 or 2, wherein a support base portion projecting toward an inner diameter side is provided on an inner periphery of each semi-cylindrical member so as to contact an outer periphery of the enlarged diameter portion of the female pipe.
  4.   The pipe connection structure according to claim 3, wherein the outer side of the support base part forms a recess, and the female rib extends from the end surface of the support base part toward the inner diameter direction.
  5.   Each semi-cylindrical member is provided with a male rib and a female rib, and when viewed in the axial direction with the pipe clamp closed, the male rib and the female rib are alternately arranged along the circumferential direction. The pipe connection structure according to any one of claims 1 to 4, wherein the pipe connection structure is formed into a shaped shape.
JP2004337124A 2004-11-22 2004-11-22 Pipe connection structure Pending JP2006144948A (en)

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Cited By (7)

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JP2009092170A (en) * 2007-10-10 2009-04-30 Kubota Corp Pipe coupling structure
JP2009103303A (en) * 2007-10-05 2009-05-14 Ckd Corp Fluid device connecting structure and fluid device unit
JP2010216507A (en) * 2009-03-13 2010-09-30 Ckd Corp Fluid device connecting structure and fluid device unit
US8033579B2 (en) 2007-10-05 2011-10-11 Ckd Corporation Fluid device connecting structure
EP2065628A3 (en) * 2007-11-29 2012-06-06 Behr GmbH & Co. KG Connecting element for a pipe coupling
JP2012525556A (en) * 2009-04-29 2012-10-22 ツイン ベイ メディカル,インコーポレイテッドTwin Bay Medical,Inc. Sanitary clamp
JP2015206405A (en) * 2014-04-21 2015-11-19 株式会社タカギ Joint

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8888398B2 (en) 2007-07-20 2014-11-18 Saint-Gobain Performance Plastics Corporation Sanitary clamp
JP4575973B2 (en) * 2007-10-05 2010-11-04 シーケーディ株式会社 Fluid device connection structure and fluid device unit
US8033579B2 (en) 2007-10-05 2011-10-11 Ckd Corporation Fluid device connecting structure
JP2009103303A (en) * 2007-10-05 2009-05-14 Ckd Corp Fluid device connecting structure and fluid device unit
JP2009092170A (en) * 2007-10-10 2009-04-30 Kubota Corp Pipe coupling structure
EP2065628A3 (en) * 2007-11-29 2012-06-06 Behr GmbH & Co. KG Connecting element for a pipe coupling
JP2010216507A (en) * 2009-03-13 2010-09-30 Ckd Corp Fluid device connecting structure and fluid device unit
JP2012525556A (en) * 2009-04-29 2012-10-22 ツイン ベイ メディカル,インコーポレイテッドTwin Bay Medical,Inc. Sanitary clamp
JP2015107326A (en) * 2009-04-29 2015-06-11 サン−ゴバン パフォーマンス プラスティックス コーポレイション Sanitary clamp
CN105423024A (en) * 2009-04-29 2016-03-23 美国圣戈班性能塑料公司 Sanitary clamp
JP2015206405A (en) * 2014-04-21 2015-11-19 株式会社タカギ Joint

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