CN102906481B - Pipe end joint - Google Patents
Pipe end joint Download PDFInfo
- Publication number
- CN102906481B CN102906481B CN201180025333.4A CN201180025333A CN102906481B CN 102906481 B CN102906481 B CN 102906481B CN 201180025333 A CN201180025333 A CN 201180025333A CN 102906481 B CN102906481 B CN 102906481B
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- Prior art keywords
- split
- sheath
- pair
- joint
- elastic insert
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/23—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the outer parts being segmented, the segments being pressed against the hose by tangentially arranged members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0036—Joints for corrugated pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Joints With Sleeves (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Gasket Seals (AREA)
Abstract
Provided is a pipe end joint such that disassemblability and assemblability are excellent, and that maintainability and versatility can be improved. This pipe end joint (10) is provided with a joint body (11) which is fitted into the end of a pipe (1) and is to be connected to another joint; and a tightening member (12) which tightens the outer circumferential surface of the pipe (1), thereby pressing the end of the pipe (1) against the joint body (11). The tightening member (12) is configured in such a way that a pair of exterior body halves (20A, 20B) are installed in such a manner as to hold the end of the pipe (1) therebetween, and that thereby a pair of elastic gasket halves (21, 21) which are removably installed along the inner circumferential surfaces of the exterior body halves (20A, 20B), respectively, are pressed against the outer circumferential surface of the pipe (1). Through holes (27, 27, 28) are formed in both of the exterior body halves (20A, 20B). Protrusions (42, 42, 43) which are to be inserted into the through holes (27, 27, 28), respectively, are formed on the outer circumferential surfaces of both of the elastic gasket halves (21, 21).
Description
Technical field
The present invention relates to a kind of pipe end joint, this pipe end joint be arranged on such as plumbing with, the medicine conveying of, food products transport with gasoline conveying with flexible pipe or pipe etc. carry various fluid with tubing end on, for being connected of the joint in other tubing and various equipment etc.
Background technique
In the past, as this pipe end joint, such as disclosed in Patent Document 1, known a kind of structure had with lower component: be embedded in the adapter body on the end of tubing; And by fastening for the end outer circumferential face of tubing, by the end of tubing by the secure component be pressed in adapter body.
Secure component have each half cycle of the end outer circumferential face of tubing is covered split sheath a pair.Be fixed with at these inner peripheral surfaces splitting sheath and split elastic insert.Further, the end of tubing being assembled a pair with bolt and nut with sandwiching and splits sheath, will elastic insert being split by being pressed on the end outer circumferential face of tubing thus.
Patent documentation 1: Japanese Patent Laid-Open 2000-74281 publication
Invent problem to be solved
But, in above-mentioned such pipe end joint constructed, about secure component, split elastic insert splitting sheath is fixed with integratedly, thus be difficult to split sheath and to split elastic insert and be separated.Therefore, when take apart pipe end joint carry out cleaning and the maintenance such as sterilization time, there is the problem bringing obstruction.And, be also difficult to change splitting elastic insert, continuing use and split sheath of deterioration, or be difficult to be replaced with different the splitting elastic insert and sheath conversion will be split on the other tubing that shape is different with structure of type, there is the problem of shortage versatility.
On the other hand, be fixed on integratedly and split on sheath if elastic insert will do not split and it can be taken off easily, then can eliminate problem as described above.But, in this occasion, when sheath is split in assembling, there is following unfavorable condition: split elastic insert and produce dislocation or forget that elastic insert is split in installation, or and then split elastic insert with the installation of the direction of mistake.
Therefore, the object of the invention is to, provide a kind of and can eliminate above-mentioned unfavorable condition, decompose the pipe end joint that assembling is excellent, can improve maintenance property and versatility.
Summary of the invention
For solving the means of problem
Pipe end joint 10 of the present invention has: the end being embedded in tubing 1, the adapter body 11 connecting other joint, and the end outer circumferential face of described tubing 1 is given fastening, by the end of described tubing 1 by the secure component 12 being pressed in described adapter body 11, described secure component 12 is configured to, sheath 20A is split for a pair by what the end of described tubing 1 assemble each half cycle with sandwiching is covered the end outer circumferential face of described tubing 1, 20B, thus sheath 20A will be split along these respectively, the inner peripheral surface of 20B is mounted to detachable to split elastic insert 21 for a pair, 21 by the circumferential total length of end outer circumferential face being pressed in described tubing 1, sheath 20A is split at described a pair, on 20B, be formed across the through hole 27 of its outer circumferential face and inner peripheral surface respectively, 27, 28, elastic insert 21 is split at described a pair, the outer circumferential face of 21, be formed respectively and split sheath 20A described in being arranged on, described through hole 27 is inserted into during 20B, 27, projection 42 in 28, 42, 43.
Specifically, described tubing 1 is made up of the spiral tube at its outer circumferential face with spiral helicine protuberance 4, describedly split elastic insert 21 for a pair, 21 are same shape and described projection 42, 42, the configuration of 43 is identical, and within it side face has the groove 41 chimeric with described protuberance 4 respectively, and by described through hole 27, 27, 28 and described projection 42, 42, 43 are formed as, describedly split sheath 20A for a pair being assembled with, under the state of 20B, be arranged on a side split sheath 20A split elastic insert 21 and be arranged on the opposing party split sheath 20B split the tube axial direction of elastic insert 21 towards being mutual adverse state, and make describedly to split elastic insert 21 for a pair, the groove 41 of 21, 41 become the helical corresponding with described protuberance 4 continuously, elastic insert 21 is split for a pair if described, the tube axial direction of 21 towards identical mutually, then describedly split elastic insert 21 for a pair, one party in 21 can not be arranged on described in correspondence and split sheath 20A, on 20B.
Namely, the configuration of splitting sheath 20A, 20B described in the projection 42,42,43 of described a pair being split elastic insert 21,21 is formed as being directed to when being described mutual adverse state is not identical, and the through hole 27,27,28 described a pair being split sheath 20A, 20B is formed as corresponding with the configuration of described projection 42,42,43, and a side split sheath 20A and the opposing party split in sheath 20B that configuration is not identical mutually.
Further, on described through hole 27,27, be formed nip described projection 42,42 and to described projection 42,42 deviate to be limited deviate from limiting unit 27a, 27a.And then, the identification display 44 of the kind of splitting elastic insert 21 described in expression is implemented in described projection 43.
Further, described sheath 20A, 20B of splitting for a pair has respectively: the main part 22 of half tubular, and from a pair joint 23 that the two end portions radius vector vertically of this main part 22 is given prominence to outward, 23, for making the joint 23 splitting sheath 20A of a side, 23 and the joint 23 splitting sheath 20B of the opposing party, 23 overlap, nut 31 and the bolt 30 inserted in the bolt insertion hole 29 of these joints 23 are carried out screw togather fastening, assemble thus and describedly split sheath 20A for a pair, 20B, in state before this assembling, the two end portions 40a vertically of elastic insert 21 is split described in installing in the inner peripheral surface circumference total length of described main part 22, 40a, from described a pair joint 23, the coincidence face 23a of 23, 23a exposes.
And then described adapter body 11 has: the chimeric cylinder portion 13 being embedded in the end of described tubing 1; The joint 14 be connected with other joint described; And give prominence to outward and the lip part 15 abutted with the end face of described tubing 1 with radius vector between joint 14 in described chimeric cylinder portion 13, the inner peripheral surface splitting sheath 20A, 20B at described a pair is formed with the telescoping groove 26 embedding described lip part 15 respectively.
The effect of invention
In pipe end joint of the present invention, about secure component, split elastic insert detachable relative to splitting sheath, by resolving into the state making them be separated, just can carry out without barrier cleaning and the maintenance such as sterilization, the tubing for such as food products transport flexible pipe etc. also can be applicable to using.And, replaceable deterioration split elastic insert, continue use and split sheath, or be replaced with different the splitting elastic insert and will sheath conversion be split in shape with construct not identical other tubing of type, also can improve versatility.
In addition, split in the through hole of sheath due to the projection of splitting elastic insert is inserted into, elastic insert will be split simultaneously and be arranged on and split sheath, and therefore, when sheath is split in assembling, the dislocation of splitting elastic insert can be prevented.And, confirming to split elastic insert with or without projection from external visual by splitting the through hole of sheath, can prevent from thus forgetting that elastic insert is split in installation.
In addition, use same shape split elastic insert and under being assembled with the state of splitting sheath, utilize the configuration relation of the through hole splitting sheath and the projection of splitting elastic insert, be arranged on split sheath split the tube axial direction of elastic insert towards must for mutual adverse state, the protuberance of tubing embeds in helical continuous print groove just.Therefore, the manufacture cost that namely wearing detail splits elastic insert can be cut down, and, even if for the worker lacked experience, also can not split elastic insert by misloading, correctly can assemble and split sheath.
In addition, by split sheath through hole deviate from limiting unit to limit deviating from of the projection of splitting elastic insert, splitting elastic insert thus relative to splitting sheath is not easy to come off, and reliably can locate, install, further stably can assemble and split sheath.Further, by implementing the projection of splitting elastic insert to identify display, thus the kind of splitting elastic insert current use can be confirmed from external visual.
In addition, show out from the coincidence of the joint splitting sheath by making the two end portions vertically of splitting elastic insert, then when sheath is split in assembling, be just close between the two end portions of splitting elastic insert for a pair, these are split elastic insert and just seamlessly become cylindric continuously.Thus, by splitting elastic insert substantially uniformly reliably by the circumferential total length of end outer circumferential face being pressed in tubing, the end inner peripheral surface of tubing and the outer circumferential face gapless of adapter body being touched, can reliably anti-fluid leak.
In addition, split in the telescoping groove of sheath by the lip part of adapter body is embedded in, thus adapter body can be stoped to deviate from from the end of tubing, pipe end joint is reliably arranged on the end of tubing.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the pipe end joint of an example of the present invention.
Fig. 2 is the stereogram of the installment state representing pipe end joint.
Fig. 3 is the longitudinal section of the installment state representing pipe end joint.
Fig. 4 is the diagram splitting sheath representing a side.
Fig. 5 is the diagram splitting sheath representing the opposing party.
Fig. 6 represents the diagram splitting elastic insert.
Fig. 7 represents a pair to be split the diagram that elastic insert makes the state after mutual adverse state.
Fig. 8 represents that splitting elastic insert by a pair makes mutual adverse state and the diagram making state relative between inner peripheral surface.
Fig. 9 represents the longitudinal section splitting elastic insert relative to the installment state of splitting sheath.
Figure 10 is the longitudinal section of the installment state of the pipe end joint representing another example.
Symbol description
1 ... tubing, 4 ... protuberance, 10 ... pipe end joint, 11 ... adapter body, 12 ... secure component, 13 ... chimeric cylinder portion, 14 ... joint, 15 ... lip part, 20A, 20B ... split sheath, 21 ... split elastic insert, 22 ... main part, 23 ... joint, 23a ... coincidence face, 26 ... telescoping groove, 27,27,28 ... through hole, 27a ... deviate from limiting unit, 29 ... bolt insertion hole, 30 ... bolt, 31 ... nut, 41 ... groove, 42,42,43 ... projection, 44 ... identify display
Embodiment
Below, describe example of the present invention in detail with reference to the accompanying drawings, in the drawings, 1 is the tubing being such as used as food products transport flexible pipe, be the reinforcement wire rod 3 of hard resin is wound in a spiral in transparent or semitransparent soft synthetic resin tube wall 2 on give integration.This tubing 1 is the spiral tube that outer circumferential face has helical protuberance 4, is coated with the fluororesin layer 5 of film-form at level and smooth inner peripheral surface.
10 is pipe end joint, is arranged on the end of tubing 1, for connecting joint that the various equipment such as joint or hutch be such as arranged on the end of other tubing has (below be generically and collectively referred to as " other joint ").This pipe end joint 10 has: be embedded on the end of tubing 1, for connecting the adapter body 11 of other joint; The end outer circumferential face of tubing 1 is given fastening, the end of tubing 1 is pressed the secure component 12 be fixed in adapter body 11.
Adapter body 11 is inipples of such as stainless steel, and entirety is formed as roughly tubular.Further, the axial end side of adapter body 11 make be embedded in tubing 1 end on the chimeric cylinder portion 13 of such as roughly straight-tube shape, the joint 14 in the portion that is such as threaded be connected with other joint is made in another side.In addition, the intermediate portion between the chimeric cylinder portion 13 and joint 14 of adapter body 11, the circular lip part 15 abutted with the end face of tubing 1 is states that radius vector is given prominence to outward.
Secure component 12 has: what covered by each half cycle of end outer circumferential face of tubing 1 splits sheath 20A, 20B for a pair; And be mounted to respectively detachable to split elastic insert 21,21 for a pair along these inner peripheral surfaces splitting sheath 20A, 20B.
Split sheath 20A, 20B for a pair to be made up of the cast member of such as aluminum, be high strength compared with plastic, is light weight compared with made of iron.These split sheath 20A, 20B as shown in Fig. 1 and Fig. 4, Fig. 5, and except the configuration difference of through hole 27,27,28 described later, all the other make roughly the same shape, have respectively: the main part 22 of half tubular; And from a pair joint 23,23 that the two end portions radius vector of (fore-and-aft direction figure shown in arrow) vertically of this main part 22 is given prominence to outward.In addition, Fig. 4 represents that a side's splits sheath 20A, and Fig. 4 (a) represents its outer circumferential face side, and Fig. 4 (b) represents inner circumferential surface side.In addition, Fig. 5 represents that the opposing party's splits sheath 20B, and Fig. 5 (a) represents its outer circumferential face side, and Fig. 5 (b) represents inner circumferential surface side.
At the inner peripheral surface of main part 22, be formed with three wire projection 24a parallel to each other, 24b, 24c along its circumference.The overhang of the inside side of wire projection 24a radius vector of axial end side (forward end), larger than the overhang of the wire projection 24b of intermediate portion and the inside side of the wire projection 24c radius vector of another side (rear end side), the overhang of the inside side of wire projection 24b, 24c radius vector is identical.Further, split elastic insert 21 to be arranged in the mounting groove 25 at the large width shallow end be formed between wire projection 24b, 24c with the state embedded.In addition, the lip part 15 of adapter body 11 is embedded in the telescoping groove 26 at the little width dark end be formed between wire projection 24a, 24b.
In addition, mounting groove 25 part of main part 22 is formed with three through holes 27,27,28 of through main part 22.In these through holes 27,27,28, two through holes 27,27 are same shapes, and make the elongated hole that (fore-and-aft direction) vertically extend, and are formed as parallel to each other in circumferentially spaced compartment of terrain.The shape of a remaining through hole 28 is different from two through holes 27,27, makes the aperture of rectangular shape, and is formed between two through holes 27,27.Here, through hole 28 forming position a side to split splitting in sheath 20B of sheath 20A and the opposing party different.Namely, split in sheath 20A a side, be formed at the side (rear end side) close to the wire projection 24c of mounting groove 25, and split in sheath 20B the opposing party, be formed at the side (forward end) close to the wire projection 24b of mounting groove 25.Therefore, a side split sheath 20A and the opposing party split in sheath 20B, through hole 27,27,28 be configured to states different mutually.
On a pair joint 23,23, (fore-and-aft direction) is formed with pair of bolts inserting hole 29,29 at spaced intervals respectively vertically.In addition, the internal surface be connected with main part 22 inner peripheral surface in these joints 23,23 makes coincidence face 23a.And each joint 23 is formed as flexuose, in addition, the 23a side, coincidence face of bolt insertion hole 29,29 expands significantly, cuts down materials'use amount thus and obtains lightweight.
Splitting elastic insert 21,21 for a pair is such as synthetic rubber systems, and makes same shape.Split in elastic insert 21,21 at these, as shown in Figure 1 and Figure 6, be formed with the groove 41 chimeric with the protuberance 4 of tubing 1 outer circumferential face respectively at the inner peripheral surface of the main part 40 of its half tubular.In addition, be formed respectively when being inserted into raised 42,42,43 in its through hole 27,27,28 to splitting when sheath 20A, 20B install at the outer circumferential face of main part 40.In addition, in figure 6, Fig. 6 (a) represents the outer circumferential face side of splitting elastic insert, and Fig. 6 (b) represents inner peripheral surface side.
In these projections 42,42,43, two projections 42,42 are same shapes, make along the longer roughly bar tabular of the axis (fore-and-aft direction in figure shown in arrow) of main part 40, and are circumferentially formed as parallel to each other at spaced intervals.In addition, the shape of a residue projection 43 is different from two projections 42,42, makes roughly rectangular shape, is formed in the side in the square end portion circumferentially close to main part 40 between two projections 42,42.The identification display 44 representing and split elastic insert 21 kind is carved with at the top end of this residue projection 43.
As mentioned above, split elastic insert 21,21 for a pair and make same shape, but when the axis (fore-and-aft direction) of these being split elastic insert 21,21 makes mutual adverse state (rollover states), then as shown in Figure 7, the configuration of two projections 42,42 does not change, but the configuration of a remaining projection 43 reverses with regard to front and back, the configured in one piece of projection 42,42,43 is just not identical.In addition, as shown in Figure 8, when described above a pair is split the axis (fore-and-aft direction) of elastic insert 21,21 towards making mutual adverse state (rollover states), by their end face circumferentially between axially (fore-and-aft direction) does not align and to make between inner peripheral surface relatively with departing from time, ground helical would not be departed from axis (fore-and-aft direction) between groove 41,41 continuous.In addition, when a pair is split elastic insert 21,21 axis (fore-and-aft direction) towards make mutually identical, by their end face circumferentially between axially (fore-and-aft direction) does not align and to make between inner peripheral surface relatively with departing from time, groove 41,41 just departs from half pitch in axis (fore-and-aft direction), is not just that helical is continuous.
Then, illustrate that the pipe end joint 10 of said structure is arranged on the order on the end of tubing 1.First, the chimeric cylinder portion 13 of embedded adapter body 11 on the end of tubing 1, makes the lip part 15 of adapter body 11 abut with the end face of tubing 1, adapter body 11 is arranged on thus on the end of tubing 1.
Then, elastic insert 21,21 will be split be arranged on and split on sheath 20A, 20B.That is, split in sheath 20A a side, insert the projection 42,42,43 of splitting elastic insert 21 in its through hole 27,27,28, and the main part 40 splitting elastic insert 21 is embedded in the mounting groove 25 of main part 22.The opposing party to split sheath 20B also identical, insert the projection 42,42,43 of splitting elastic insert 21 in its through hole 27,27,28, and the main part 40 splitting elastic insert 21 be embedded in the mounting groove 25 of main part 22.
As shown in Figure 9, split the through hole 27,27 of sheath 20A, 20B, being formed respectively nips split elastic insert 21,21 projection 42,42, restriction projection 42,42 wedge shape of deviating from deviate from limiting unit 27a, 27a.Therefore, split elastic insert 21,21 and be not easy to come off from splitting sheath 20A, 20B, can reliably locate and install.
In addition, under this installment state, as shown in Figure 9, the main part 40 splitting elastic insert 21,21 is disposed in the circumferential total length of main part 22 inner peripheral surface split in sheath 20A, 20B.Further, two end portions 40a, the 40a of (fore-and-aft direction) vertically of this main part 40 are the states exposing given size (1mm ~ 5mm) from coincidence face 23a, 23a of the joint 23,23 splitting sheath 20A, 20B.
Like this, be assemblied in being provided with split sheath 20A, 20B of splitting elastic insert 21,21 on the end of the tubing 1 being provided with adapter body 11.When carrying out this assembling, as shown in Figure 1 to Figure 3, make to split sheath 20A, 20B its axially (fore-and-aft direction) towards identical, make to split state relative to each other between the inner peripheral surface of elastic insert 21,21 under, sandwich the end of tubing 1.Now, splitting sheath 20A, 20B and being combined mutually in continuous telescoping groove 26,26 circlewise, the lip part 15 of adapter body 11 is just embedded.And, coincidence face 23a, 23a of the joint 23,23 split in sheath 20B of coincidence face 23a, 23a of splitting the joint 23,23 in sheath 20A of one side and the opposing party are overlapped, in this case by nut 31 ... with insert at these joints 23 ... bolt insertion hole 29 ... interior bolt 30 ... carry out screwing togather fastening.
Like this, normally assembling under the state of splitting sheath 20A, 20B, would not be aligned with departing from tube axial direction (central axis direction of tubing, i.e. fore-and-aft direction shown in arrow in figure) between the end face circumferentially splitting elastic insert 21,21 relative between inner peripheral surface.And, be arranged on a side split on sheath 20A split elastic insert 21 and be arranged on the opposing party split the tube axial direction (fore-and-aft direction) splitting elastic insert 21 on sheath 20B towards, must be mutual adverse state (rollover states) because of the configuration relation of above-mentioned through hole 27,27,28 and projection 42,42,43.Thus, can not depart from tube axial direction (fore-and-aft direction) between the groove 41,41 splitting elastic insert 21,21, and become helical continuous print state.
In addition, the as follows towards the reason that must be mutual adverse state (rollover states) of the tube axial direction (fore-and-aft direction) of elastic insert 21,21 is split.That is, a side split sheath 20A and the opposing party split in sheath 20B, the configuration of their through hole 27,27,28 is different.Therefore, even if make same shape and the configuration of projection 42,42,43 identical split the tube axial direction (fore-and-aft direction) of elastic insert 21,21 towards identical mutually, and split on sheath 20A, 20B for being arranged on, in the combination of one party, through hole 27,27,28 and projection 42,42,43 also inconsistent and can not install.In order to install, so have to splitting before and after elastic insert 21 of a side to overturn on the contrary.Therefore, inerrably correctly can be arranged on splitting elastic insert 21,21 all the time and split on sheath 20A, 20B.
Further, above-mentioned nut 31 is utilized ... fastening, split elastic insert 21,21 with compression state be pressed against on the end outer circumferential face of tubing 1.Now, as mentioned above, to be arranged on appropriate positioning states to split on sheath 20A, 20B owing to splitting elastic insert 21,21, therefore, split elastic insert 21,21 and can not produce dislocation.In addition, be close between the two end portions (part from coincidence face 23a, 23a of splitting sheath 20A, 20B expose) of splitting (fore-and-aft direction) vertically of the main part 40,40 of elastic insert 21,21, split elastic insert 21,21 and seamlessly become cylindric continuously.In addition, the protuberance 4 of the outer circumferential face of tubing 1 just embeds and is close in the groove 41,41 of the continuous curl splitting elastic insert 21,21.Thus, elastic insert 21,21 will can be split roughly equably reliably by being pressed in the circumferential total length of end outer circumferential face of tubing 1.
Utilize this pressing force, the end of tubing 1 is just pressed against in the chimeric cylinder portion 13 of adapter body 11, and the end inner peripheral surface of tubing 1 seamlessly touches with the outer circumferential face in chimeric cylinder portion 13, and anti-fluid is leaked.In addition, owing to being that the lip part 15 of adapter body 11 is embedded in the state of splitting in the telescoping groove 26,26 of sheath 20A, 20B, therefore, adapter body 11 deviates to be prevented from from the end of tubing 1.Like this, by utilizing secure component 12 to be fixed on the end of tubing 1 by adapter body 11, the installation of pipe end joint 10 just terminates.
In above-mentioned pipe end joint 10, owing to being applicable to the tubing 1 as food products transport flexible pipe, therefore, on administration of health, regularly must carry out the maintaining of cleaning and sterilizing.In this occasion, following operation be carried out: unload from the end of tubing 1 after decomposing pipe end joint 10, carrying out cleaning and sterilize, then pipe end joint 10 be arranged on the end of tubing 1.When decomposing pipe end joint 10, loosen nut 31 ... unload bolt 30, unload from the end of tubing 1 and split sheath 20A, 20B, extract adapter body 11 from the end of tubing 1 afterwards, and then unload split elastic insert 21,21 from splitting sheath 20A, 20B.Thus, the structure member difference sporadically simple separation of pipe end joint 10 can be made, the maintaining of cleaning and sterilizing can be carried out without prejudicely.
In addition, under the installment state of pipe end joint 10, the projection 42,42,43 of splitting elastic insert 21,21 is given prominence to from the through hole 27,27,28 splitting sheath 20A, 20B, can confirm projection 42,42,43 from outside with visual.Therefore, when assemble pipe end joint 10 decompose after split sheath 20A, 20B time, can prevent from forgetting that elastic insert 21,21 is split in installation.And, identify display 44 owing to being carved with at the top end of projection 43, therefore can also confirm the kind of splitting elastic insert 21,21.In addition, use same shape split elastic insert 21,21 while, can be arranged on split on sheath 20A, 20B towards elastic insert 21,21 will be split with correct all the time.Therefore, the manufacture cost that namely wear-out part splits elastic insert 21,21 can be cut down, and for the worker lacked experience, elastic insert 21,21 can not be split by misloading, can simply and reliably mounting pipe end connector 10.
In addition, make detachable relative to splitting sheath 20A, 20B by elastic insert 21,21 will be split, then replaceable deterioration split elastic insert 21,21, use can be continued and split sheath 20A, 20B, or be replaced with type different split elastic insert 21,21, thus can will split sheath 20A, 20B conversion in shape with construct different other tubing (such as medicine transport hose etc.) and improve versatility.
Figure 10 represents the pipe end joint 10 of another example.In this pipe end joint 10, the structure of secure component 12 is different from above-mentioned example.Other structure is identical with above-mentioned example with action effect, for having the parts with above-mentioned example identical function, puts on same-sign.
Namely, in the secure component 12 of this pipe end joint 10, split in the inner peripheral surface of main part 22 of sheath 20A, 20B, between mounting groove 25 and telescoping groove 26, be formed with the spiral ridge 50 (cut off near holding) near the pipe end to tubing 1 and carry out pressing respectively.Further, the width dimensions splitting the axis (fore-and-aft direction) of the mounting groove 25,25 of sheath 20A, 20B is reduced, install in these mounting grooves 25,25 width slightly narrow split elastic insert 21,21.
When this secure component 12 is arranged on the end of tubing 1, make to be provided with the axis (fore-and-aft direction) of splitting sheath 20A, 20B of splitting elastic insert 21,21 towards identical, make to split state relative to each other between the inner peripheral surface of elastic insert 21,21 under, sandwich the end of tubing 1.Further, bolt 30 is inserted splitting the joint 23 of sheath 20A, 20B ... bolt insertion hole 29 ... in, by nut 31 ... with these bolts 30 ... carry out screwing togather fastening.
Thus, be embedded in the lip part 15 of adapter body 11 at the telescoping groove 26,26 splitting sheath 20A, 20B, stop adapter body 11 to be deviate from from the end of tubing 1.In addition, splitting elastic insert 21,21 is pressed against on the end outer circumferential face of tubing 1 with the state of compression, simultaneously, the spiral ridge 50,50 of splitting sheath 20A, 20B is pushed into the pipe end neighbouring (cutting off near end) of tubing 1, the end of tubing 1 is just pressed against in the chimeric cylinder portion 13 of adapter body 11, and anti-fluid is leaked.
Especially, reliably press by utilizing (near cut-out end) near the pipe end of spiral ridge 50,50 pairs of tubing 1 of hard, even employ the occasion of the tubing 1 being embedded with reinforcing line or ground wire in tube wall 2, the end of reinforcing line or ground wire also reliably can be clamped.Thus, can stop because the expansion of tubing 1 or the reinforcing line caused by crawling etc. or ground wire enter axial inboard, the intensity decline (cut off near end) near the pipe end of tubing 1 can be suppressed.Therefore, this pipe end joint 10, also can effectively apply for the tubing 1 being placed with reinforcing line or being placed with ground wire.
The present invention is not limited to above-mentioned example, within the scope of the invention, certainly can do more correction and change to above-mentioned example.
Such as, as the tubing of mounting pipe end connector, be not limited to spiral tube, may also be the tubing of the level and smooth straight-tube shape of inner and outer circumferential surfaces.
In addition, the shape of the through hole splitting sheath and the projection of splitting elastic insert, number and configuration are not limited to above-mentioned example, at least in the assembling condition splitting sheath, be arranged on a side split on sheath split elastic insert and be arranged on the opposing party split on sheath split the tube axial direction of elastic insert towards can be configured to must for mutual adverse state.Such as, also elastic insert can be formed respectively a projection (such as only projection 43) respectively splitting, sheath be formed respectively a through hole (such as only through hole 28) respectively splitting.
In addition, not only use secure component fastening thus by the end of tubing by being pressed in adapter body for being carried out by the end outer circumferential face of tubing, and secure component can be made in the lump to have the function of connection a pair tubing.Namely, also can under adapter body in the end by being embedded in a square tube material aims at and is embedded in the state of adapter body (other joint) of the end of the opposing party's tubing, assemble across the end outer circumferential face of these both sides' tubing and split sheath for a pair, thus the tubing of both sides is coupled together.In addition, in this occasion, split elastic insert and use relative to each tubing each two to amount to four.
Further, split sheath and be not limited to aluminum, may also be stainless steel.
Claims (7)
1. a pipe end joint, is characterized in that, has: the end being embedded in tubing (1), the adapter body (11) connecting other joint, and the end outer circumferential face of described tubing (1) is given fastening, by the end of described tubing (1) by the secure component (12) being pressed in described adapter body (11), described secure component (12) is configured to, and splits sheath (20A for a pair by what the end of described tubing (1) assemble each half cycle with sandwiching is covered the end outer circumferential face of described tubing (1), 20B), thus sheath (20A will be split along these respectively, inner peripheral surface 20B) is mounted to detachable to split elastic insert (21 for a pair, 21) by the circumferential total length of end outer circumferential face being pressed in described tubing (1), sheath (20A is split at described a pair, 20B), be formed across the through hole (27 of its outer circumferential face and inner peripheral surface respectively, 27, 28), elastic insert (21 is split at described a pair, 21) outer circumferential face, is formed respectively and splits sheath (20A described in being arranged on, described through hole (27 is inserted into time 20B), 27, 28) projection (42 in, 42, 43),
Described tubing (1) is made up of the spiral tube at its outer circumferential face with spiral helicine protuberance (4), describedly splits elastic insert (21 for a pair, 21) be same shape and described projection (42, 42, 43) configuration is identical, and within it side face has the groove (41) chimeric with described protuberance (4) respectively, and by described through hole (27, 27, 28) and described projection (42, 42, 43) be formed as, describedly split sheath (20A for a pair being assembled with, under state 20B), be arranged on a side split sheath (20A) split elastic insert (21) and be arranged on the opposing party split sheath (20B) split the tube axial direction of elastic insert (21) towards for mutual adverse state, and described elastic insert (21 of splitting for a pair being made, 21) groove (41, 41) become the helical corresponding with described protuberance (4) continuously, split elastic insert (21 for a pair if described, 21) tube axial direction towards identical mutually, then describedly split elastic insert (21 for a pair, 21) one party in can not be arranged on described in correspondence and split sheath (20A, 20B),
The configuration of splitting sheath (20A, 20B) described in the projection (42,42,43) of described a pair being split elastic insert (21,21) is formed as being directed to when being described mutual adverse state is not identical, and the through hole (27,27,28) described a pair being split sheath (20A, 20B) is formed as corresponding with the configuration of described projection (42,42,43), and a side split sheath (20A) and the opposing party split in sheath (20B) that configuration is not identical mutually.
2. pipe end joint as claimed in claim 1, it is characterized in that, on described through hole (27,27), be formed with described projection of nipping (42,42) and to described projection (42,42) deviate to be limited deviate from limiting unit (27a, 27a).
3. pipe end joint as claimed in claim 1, is characterized in that, implements identification display (44) of the kind of splitting elastic insert (21) described in expression in described projection (43).
4. pipe end joint as claimed in claim 1, it is characterized in that, described sheath (20A, 20B) of splitting for a pair has respectively: the main part (22) of half tubular, and from a pair joint (23 that the two end portions radius vector vertically of this main part (22) is given prominence to outward, 23), for making the joint (23 splitting sheath (20A) of a side, 23) and the joint (23 splitting sheath (20B) of the opposing party, 23) overlap, nut (31) and the bolt (30) inserted in the bolt insertion hole (29) of these joints (23) are carried out screw togather fastening, assemble thus and describedly split sheath (20A for a pair, 20B), in state before this assembling, two end portions (the 40a vertically of elastic insert (21) is split described in installing in the inner peripheral surface circumference total length of described main part (22), 40a), from described a pair joint (23, 23) coincidence face (23a, 23a) expose.
5. pipe end joint as claimed in claim 1, it is characterized in that, described adapter body (11) has: the chimeric cylinder portion (13) being embedded in the end of described tubing (1); The joint (14) be connected with other joint described; And give prominence to outward and the lip part (15) abutted with the end face of described tubing (1) with radius vector between joint (14) described chimeric cylinder portion (13), the inner peripheral surface splitting sheath (20A, 20B) at described a pair is formed with the telescoping groove (26) embedding described lip part (15) respectively.
6. pipe end joint as claimed in claim 1, is characterized in that, described to split sheath (20A, 20B) for a pair be aluminum.
7. the pipe end joint according to any one of claim 1 to 5, is characterized in that, described sheath (20A, 20B) of splitting for a pair is stainless steel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010133865 | 2010-06-11 | ||
| JP2010-133865 | 2010-06-11 | ||
| PCT/JP2011/062921 WO2011155436A1 (en) | 2010-06-11 | 2011-06-06 | Pipe end joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102906481A CN102906481A (en) | 2013-01-30 |
| CN102906481B true CN102906481B (en) | 2015-07-01 |
Family
ID=45098043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180025333.4A Active CN102906481B (en) | 2010-06-11 | 2011-06-06 | Pipe end joint |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5634515B2 (en) |
| KR (1) | KR20130083841A (en) |
| CN (1) | CN102906481B (en) |
| WO (1) | WO2011155436A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5833417B2 (en) * | 2011-12-07 | 2015-12-16 | 東拓工業株式会社 | Pipe end fitting |
| CN106287045A (en) * | 2016-08-29 | 2017-01-04 | 山东胜伟园林科技有限公司 | A kind of water collect tank and collector pipe attachment structure |
| NZ754084A (en) | 2017-02-02 | 2023-06-30 | Victaulic Co Of America | Mechanical coupling for mechanical and structural tubing |
| KR102156388B1 (en) * | 2018-05-24 | 2020-09-15 | 한국전력공사 | Structure for prohibiting water leakage of manhole and Method for assemblying the same |
| JP6798713B2 (en) * | 2019-02-12 | 2020-12-09 | 株式会社トヨックス | Pipe fitting |
| CN111188955B (en) * | 2020-02-27 | 2021-08-03 | 玫德集团有限公司 | Pipe clamp capable of realizing quick connection and pipe clamp assembly |
| JP7477398B2 (en) | 2020-08-21 | 2024-05-01 | 東拓工業株式会社 | Hose fitting clamp holder, hose fitting nipple and hose fitting |
| CN112049997A (en) * | 2020-09-16 | 2020-12-08 | 常州市凯平机械有限公司 | High-pressure oil pipe joint assembly |
| CN113187849B (en) * | 2021-04-23 | 2022-07-01 | 重庆锐锦科技有限公司 | Road construction buried pipeline protection device easy to maintain |
| US11885452B2 (en) * | 2021-10-05 | 2024-01-30 | Franklin Fueling Systems, Llc | Testable termination fitting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6367849B1 (en) * | 1999-05-24 | 2002-04-09 | Totaku Industries, Inc. | Joint for corrugated pipe |
| US6398270B1 (en) * | 1999-05-06 | 2002-06-04 | Totaku Industries, Inc. | Corrugated pipe joint |
| US6659510B1 (en) * | 1998-08-28 | 2003-12-09 | Totaku Industries, Inc. | Pipe-end-connecting joint |
| CN101055052A (en) * | 2006-04-12 | 2007-10-17 | 埃姆斯化学公司 | Connection device for a pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0133910Y2 (en) * | 1985-04-22 | 1989-10-16 | ||
| JP2000310379A (en) * | 1999-04-26 | 2000-11-07 | Kana Flex Corporation Kk | Joint |
-
2011
- 2011-06-06 CN CN201180025333.4A patent/CN102906481B/en active Active
- 2011-06-06 JP JP2012519371A patent/JP5634515B2/en active Active
- 2011-06-06 KR KR1020127032168A patent/KR20130083841A/en not_active Application Discontinuation
- 2011-06-06 WO PCT/JP2011/062921 patent/WO2011155436A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6659510B1 (en) * | 1998-08-28 | 2003-12-09 | Totaku Industries, Inc. | Pipe-end-connecting joint |
| US6398270B1 (en) * | 1999-05-06 | 2002-06-04 | Totaku Industries, Inc. | Corrugated pipe joint |
| US6367849B1 (en) * | 1999-05-24 | 2002-04-09 | Totaku Industries, Inc. | Joint for corrugated pipe |
| CN101055052A (en) * | 2006-04-12 | 2007-10-17 | 埃姆斯化学公司 | Connection device for a pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130083841A (en) | 2013-07-23 |
| CN102906481A (en) | 2013-01-30 |
| JP5634515B2 (en) | 2014-12-03 |
| JPWO2011155436A1 (en) | 2013-08-01 |
| WO2011155436A1 (en) | 2011-12-15 |
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Address after: 17, Shincho 1, nishiko, Osaka City, Osaka Prefecture, Japan Patentee after: Totaku Industries, Inc. Address before: No.33, 1-d-1-fan-1, Mitsuya south, Dianchuan District, Osaka, Japan Patentee before: Totaku Industries, Inc. |