CN111365334A - Joint assembly for pipe connection ensuring convenience of construction - Google Patents
Joint assembly for pipe connection ensuring convenience of construction Download PDFInfo
- Publication number
- CN111365334A CN111365334A CN202010226675.3A CN202010226675A CN111365334A CN 111365334 A CN111365334 A CN 111365334A CN 202010226675 A CN202010226675 A CN 202010226675A CN 111365334 A CN111365334 A CN 111365334A
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- Prior art keywords
- pipe
- outer diameter
- coupling
- joint assembly
- bodies
- Prior art date
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 claims description 86
- 238000010168 coupling process Methods 0.000 claims description 86
- 238000005859 coupling reaction Methods 0.000 claims description 86
- 238000000034 method Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends tightened by tangentially-arranged threaded pins
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
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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
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The present invention relates to a joint assembly for pipe connection that ensures ease of construction, and more particularly, to a joint assembly for pipe connection that is disposed between connection ends of pipes that are required to be connected end to end, and that ensures ease of construction by sealingly connecting the connection ends of these pipes.
Description
Technical Field
The present invention relates to a joint assembly for pipe connection that ensures ease of construction, and more particularly, to a joint assembly for pipe connection that is disposed between connection ends of pipes that are required to be connected end to end, and that ensures ease of construction by hermetically connecting the connection ends of the pipes.
Background
Conventionally, in order to connect pipes in an end-to-end manner, a pipe connection joint assembly is disposed between two aligned pipes, and the connection ends of the pipes are connected in series.
The pipe connection joint assembly includes: a pair of coupling bodies; an annular gasket disposed in the coupling body and fitted around the connection end of the pipe; and a fastening part for closely contacting both ends of the coupling body.
The process of connecting pipes by the joint assembly for connecting pipes is realized in the following order: the coupling body is gradually brought into close contact with the outer diameters of the annular gasket and the pipe connection end by disposing the annular gasket, which is initially separated from the coupling body, between the connection ends of the pipes forming the end-to-end portions and, after the annular gasket has an outer wall that surrounds the coupling body in a divided manner, providing and fastening a fastening portion between the coupling bodies, thereby physically restricting and fixing the connection ends of the pipes disposed end-to-end portions.
That is, in the conventional joint assembly for pipe connection, the connection end of the pipe to be connected is interference-fitted into the annular gasket, and the joint body is not sufficiently spaced apart in the process of entering the pipe.
Therefore, the pipe coupling joint assembly described above involves a construction trouble and inconvenience that the annular gasket must be separated from the coupling body, and the worker must reassemble the coupling body and the fastening portion after the separated annular gasket is interference-fitted to the pipe.
Documents of the prior art
Patent document
(patent document 1) Korean patent KR 10-1508659B 1
(patent document 2) Korean patent KR 10-1916892B 1
Disclosure of Invention
An object of the present invention devised to solve the problem lies on providing a joint assembly for connecting pipes, which ensures ease of construction, and which is improved in that interference and a friction occurrence rate between a ring-shaped gasket attached to a coupling body and a pipe connecting end caused by the ring-shaped gasket being pulled to be inserted into the connecting end of a pipe in a longitudinal direction are minimized, and the coupling body are spaced apart from each other at a sufficient interval in a process of entering the connecting end of the pipe, so that the connecting end can be stably inserted into an insertion space formed between the coupling body.
The above object is achieved by the following structure provided in the present invention.
A joint assembly for connecting piping, which ensures the convenience of construction, comprises two or more coupling bodies each having a circular arc-shaped body with a crown-shaped cross section and having lug arms formed at both side ends thereof, circular arc-shaped bent ends formed on both side inner walls of the circular arc-shaped body, and a receiving and pressing groove formed between the circular arc-shaped bent ends so as to be recessed outward, a ring-shaped gasket formed of a hollow ring-shaped body made of a flexible material and having both side portions supported by the circular arc-shaped bent ends, the ring-shaped gasket being drawn and received in the receiving and pressing groove formed in the coupling body, and a fastening portion passing through the lug arms of the coupling bodies facing each other so as to allow the lug arms facing each other to be brought close to each other by fastening, the ring-shaped gasket being formed by integrally pressing an outer diameter surface of a connection end of the piping inserted into a space portion and an outer diameter surface of the ring-shaped gasket arranged in the receiving and pressing groove, the ring-shaped gasket having a split groove portion formed in such a shape that the split belt groove portion is recessed inward in a central outer diameter portion in a shape, and an outer diameter of the split belt extending outward from the central groove portion is gradually increased from the expanded pipe.
Preferably, the pipe expanding seal edge portion forms an entrance path of the pipe connecting end which is expanded outward with the split groove portion as a center to enter from both sides in a longitudinal direction in an entrance process of the pipe which is not compressed by the coupling body, that is, forms an pipe expanding entrance path, and when the coupling bodies approach each other, the elastic seal ring portion forming the pipe expanding entrance path is rotated inward with reference to the split groove portion while being pressed inward by an inner wall of the receiving compression groove forming an inner diameter surface of the coupling body and an inner wall of the circular arc-shaped bent end to realize pipe contracting, so that the inner diameter surface is closely attached to an outer diameter of the pipe connecting end entering along the pipe expanding entrance path.
More preferably, the pipe expanding seal edge portions formed on both sides of the divided grooved portion are integrally formed with: the outer diameter pressing sheet is externally connected with the containing extrusion groove of the coupling body; the inner diameter tight pasting piece is internally connected with the outer diameter piece of the connecting end of the tubing; and a side wall portion formed between an outer side portion of the outer diameter pressing piece and an outer side portion of the inner diameter fastening piece, and supporting the outer diameter pressing piece and the inner diameter fastening piece in a concentric structure.
The outer diameter pressing piece and the inner diameter pressing piece connected by the side wall portion form an expanding pipe entering path, and when the outer diameter pressing piece is not pressed by the coupling body, the outer diameter pressing piece and the outer diameter pressing piece rotate outwards around the split groove portion to form an outwards inclined surface structure, so that the diameter is gradually increased from the central portion to the outer side.
The inner side of the outer diameter pressing piece constituting the expanded pipe sealing edge portion is integrally connected to the outer side of the split groove portion to be molded, so that the expanded pipe sealing edge portion is turned inward and outward with reference to the inner side of the integrally connected outer diameter pressing piece and the outer side of the split groove portion.
Further, a support spring is disposed between the lug arms of the facing joint bodies so as to space the facing joint bodies at a predetermined interval.
As described above, in the present invention, the coupling body and the fastening portion are improved, and when the traction by the fastening portion cannot be achieved, the coupling body is maintained in the pre-assembled state in the state of being spaced at a predetermined interval or more, and the entry space portion having a diameter larger than the connection end of the pipe is formed between the arc-shaped bent ends formed in the coupling body while the outer side portion of the annular washer is pulled and adhered by the inner diameter portion.
Therefore, in the present invention, the coupling bodies can be assembled to the coupling bodies by inserting the coupling bodies into the pipe, and the annular gasket can be completely separated from the coupling bodies, and the coupling bodies can be assembled to the coupling bodies by inserting the separated annular gasket between the coupling ends of the pipe.
In particular, the present invention improves the structure of the annular gasket including the divided band groove portion and the expanded pipe sealing edge portion.
Therefore, in the present invention, the pipe expansion entrance path is secured on both the left and right sides of the annular gasket during the installation of the pipe connection end, so that the pipe connection end can stably enter without excessive interference or friction between the pipe connection end and the annular gasket, and stable sealing between the pipe connection end and the annular gasket can be secured by pressing the coupling body.
Drawings
Fig. 1 shows a construction state of a joint assembly for piping connection according to a preferred embodiment of the present invention to ensure convenience of construction.
Fig. 2 and 3 show an overall structure of a joint assembly for piping connection according to a preferred embodiment of the present invention, which ensures ease of construction.
Fig. 4 shows a detailed structure of a gasket in a coupling assembly for piping connection according to the present invention, which is proposed in a preferred embodiment to ensure convenience of construction.
Fig. 5 to 7 sequentially show a connection process of a pipe connection end of a joint assembly for pipe connection according to a preferred embodiment of the present invention to ensure convenience of construction.
Description of reference numerals
1: pipe connection joint assemblies 10A and 10B: coupling body
11: curved bent end 11 a: intercepting part
12: accommodating and extruding groove 13: lug arm
13 a: assembly hole 13 b: access channel
13 c: the housing groove 14: hinge pin
20: annular gasket 21: divided belt groove part
22: the tube expansion seal edge portion 23: dividing edge portion
30: fastening portion 31: assembling bolt
31 a: traction attachment head 31 b: rectification part
31 c: the handle portion 31 d: fastening end
32: assembling the nut 33: supporting spring
100A, 100B: piping 110: connecting end
111: traction adhesion groove S: into the space part
S1, S2: the expanded pipe entering path S3: anti-interference space
Detailed Description
Hereinafter, a joint assembly for pipe connection according to a preferred embodiment of the present invention, which ensures ease of construction, will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a construction state of a joint assembly for piping connection according to the present invention, which is proposed as a preferred embodiment to ensure convenience of construction, fig. 2 and 3 show an overall structure of the joint assembly for piping connection according to the present invention, which is proposed as a preferred embodiment to ensure convenience of construction, fig. 4 shows a detailed structure of an annular gasket in the joint assembly for piping connection according to the present invention, which is proposed as a preferred embodiment to ensure convenience of construction, and fig. 5 to 7 sequentially show a connection process of a piping connection end of the joint assembly for piping connection according to the present invention, which is proposed as a preferred embodiment to ensure convenience of construction.
The joint assembly 1 for connecting pipes according to the present invention, which ensures ease of construction, is disposed between the connection ends 110 of pipes 100A and 100B having a circular cross section to be connected as shown in fig. 1, and connects the connection ends 110 of a pair of pipes 100A and 100B in close contact in an end-to-end state by annularly pressing them.
As shown in fig. 1 to 2, the joint assembly 1 includes: joint bodies 10A and 10B that press annularly while being divided so as to surround the outer diameter of a connection end 110 of pipes 100A and 100B connected end to end; an annular gasket 20 that is fitted over the connection ends of the pipes 100A and 100B connected end to end and is annularly pressed by the coupling bodies 10A and 10B; and a tightening part 30 for pressing the outer diameter of the connection end 110 of the pipes 100A and 100B inserted into the insertion space part and the outer diameter surface of the ring-shaped gasket 20 disposed in the receiving groove 12 by bringing the joint bodies 10A and 10B, which are divided to surround the outer diameter of the connection end 110 of the pipes 100A and 100B, close to each other.
The joint bodies 10A and 10B are formed of circular arc-shaped molded bodies having crown-shaped cross sections, circular arc-shaped bent ends 11 are formed on both inner walls, and a receiving and pressing groove 12 is formed integrally between the circular arc-shaped bent ends 11.
In the present embodiment, a pair of coupling bodies are disposed at the connection ends 110 of the pipes 100A and 100B connected end to end, and the pair of coupling bodies includes: a coupling body 10A formed with an upwardly concave arc-shaped bent end 11 and a receiving extrusion groove 12; a coupling body 10B having a curved end 11 recessed downward and a receiving pressing groove 12.
The curved ends 11 formed on both inner walls of the coupling bodies 10A and 10B are elements that physically pull the connection ends 110 of the pipes 100A and 100B into the pulling adhesion grooves 111 formed on the outer diameter of the connection ends 110 of the pipes 100A and 100B by pulling the tightening part 30.
The housing pressing groove 12 formed between the curved ends 11 is a component for pressing and housing the outer diameter surface of the annular gasket 100 formed inside by the traction of the fastening portion 100.
Therefore, when the joint bodies 10A and 10B are spaced apart from each other, the connection end 110 of the pipe 100A and 100B enters the entrance space S formed between the joint bodies 10A and 10B spaced apart from each other as shown in fig. 5 to 7 in the left-right longitudinal direction, and the connection end 110 is inserted into the annular washer 20 disposed between the joint bodies 10A and 10B.
Thereafter, when the coupling bodies 10A and 10B spaced apart from each other are brought close to each other by the tightening part 30, the annular washers 20 fitted around the connection ends 110 of the pipes 100A and 100B are pressed against the outer diameter surfaces of the connection ends 110 of the pipes 100A and 100B by the receiving and pressing grooves 12 of the coupling bodies 10A and 10B brought close to each other, and the arcuate bent ends 11 formed on both sides of the receiving and pressing grooves 12 enter the traction and adhesion grooves 111 formed in the outer diameter of the connection ends 110 of the pipes 100A and 100B, respectively, to physically pull and adhere the connection ends 110 of the pipes 100A and 100B.
Further, lug arms 13 having assembly holes 13a are formed in both side ends of the coupling bodies 10A and 10B, respectively, and the pair of coupling bodies 10A and 10B press the connection ends 110 of the pipes 100A and 100B and the ring-shaped gasket 20 formed in the inner diameter portions while approaching each other by the tightening portions 30 penetrating the lug arms 13 through the assembly holes 13 a.
More preferably, as shown in fig. 3b, an inlet passage 13b communicating with the assembly hole 13a is formed to be open to both sides of the lug arm 13, so that the fastening portion 30 to which the assembly bolt 31 and the assembly nut 32 are assembled enters the assembly hole 13a through the inlet passage 13b in a lateral direction.
Of course, as shown in fig. 3a, it is intended to be a modified embodiment of the present invention that one end portions of the vertically opposed coupling bodies 10A and 10B are connected by a hinge pin 14 in a hinge structure, and a lug arm 13 penetrating a tightening portion 30 is formed at the other end portion of the coupling body 10, so that the coupling bodies 10A and 10B dividedly surrounding the connection end 110 of the pipes 10A and 10B are brought close to each other by pulling the lug arm 13 disposed at one end portion by the tightening portion 30, and the connection end 110 of the pipes 100A and 100B formed in the inner diameter portion and the ring-shaped gasket 20 can be pressed.
The tightening unit 30 includes: an assembling bolt which penetrates through an assembling hole formed on the lug part; the assembly nut 32 is fastened to the end of the assembly bolt 31 to press the spaced lug arms 13 against each other, thereby bringing the spaced joint bodies 10A and 10B close to each other.
In the present embodiment, an interfitting structure is provided between the assembly hole 13a of the lug arm 13 and the assembly bolt 31 constituting the fastening portion 30 to prevent the assembly bolt 31 from idling during the fastening of the assembly nut 32.
For this reason, in the present embodiment, as shown in fig. 2b, the assembly hole 13a of the lug arm 13 is formed in a polygonal or elliptical shape.
The assembly bolt 31 includes: a pulling attachment head 31a attached to an outer wall of the assembly hole 13a by pulling; a rectifying portion 31b formed at a lower portion of the traction attachment head portion 31a and externally connected to an inner wall of the assembly hole 13 a; a rod-shaped shank 31c extending in a long direction below the engaging portion 31 b; and a fastening end 31d formed at an end of the shank 31c and fastened to the assembly nut 32.
Therefore, the assembly bolts 31 penetrating the opposed lug arms 13 are prevented from idling by the engagement of the engagement portions 31b in the assembly holes 13a, and in this state, the assembly bolts 31 are brought close to each other by the fastening of the assembly nuts 32 fastened to the fastening end portions 31d, so that the trouble of the construction due to the idling of the assembly bolts 31 can be eliminated.
On the other hand, in the present invention, the annular washer 20 is formed of a hollow annular body made of a flexible material, and is drawn and adhered to and accommodated in the accommodation pressing groove 12 formed in the joint bodies 10A and 10B in a state where both side portions are supported by the arc-shaped bent ends 11 of the joint bodies 10A and 10B.
In the present invention, the configuration of the annular gasket 20 is improved so that the expanded pipe entry paths S1 and S2, which are expanded pipes, are formed at both sides of the inner diameter during the insertion of the connection end 110 of the pipes 100A and 100B to be connected, enter the annular gasket 20 without interference or friction, and are closely adhered to the outer diameter of the connection end 110 of the pipes 100A and 100B by the shaping pipe shrinkage process by the outer diameter pressing of the coupling bodies 10A and 10B after the entry is completed, thereby ensuring a stable sealing state therebetween.
As shown in fig. 2 and 4 to 7, in the ring-shaped gasket 20 of the present embodiment, a divided groove portion 21 having a small thickness is formed so as to be inwardly recessed in the central portion of the outer diameter, and elastic close contact edge portions 22 having a thickness relatively larger than that of the divided groove portion 21 and having a diameter gradually increasing from the central portion toward the outer diameter portion are formed on both the left and right sides of the divided groove portion 21.
Wherein both sides of the divided groove portion 21 have a relatively thin thickness of at least 0.01 to 0.3mm so as to realize stable elastic bending, and the elastic close-contact edge portions 22 symmetrically formed at both left and right sides of the divided groove portion 21 have a thick thickness of 0.02 to 0.5 mm.
Further, the divided groove portion 21 formed between the elastic close-contact edge portions 22 is formed to be inwardly recessed in the shape of "∪" and the interference preventing space S3 is formed in the outer diameter portion, so that the inner end of the elastic close-contact edge portion 22 which is turned outward enters the interference preventing space S3 to prevent physical interference therebetween, and the elastic close-contact edge portion 22 is turned outward at a sufficient angle.
According to the present embodiment, the width of the elastic contact edge portion of the "∪" shape is formed in a step structure of 0.1mm to 0.5 mm.
The elastic close-contact edge portions 22 symmetrically formed on both left and right sides of the divided grooved portion 21 have an inverted-oblique ∪ -shaped cross-sectional structure integrally formed by an outer diameter pressing piece 22a circumscribing the receiving and pressing groove 12 of the coupling bodies 10A, 10B, an inner diameter close-contact piece 22B inscribing the outer diameter of the connection end 110 of the pipes 100A, 100B, and a side wall portion 22c formed between the outer side portion of the outer diameter pressing piece 22a and the outer side portion of the inner diameter close-contact piece 22B and supporting the outer diameter pressing piece 22a and the inner diameter close-contact piece 22B concentrically with each other.
At this time, the outer diameter pressing piece 22a and the inner diameter fastening piece 22B are formed of planar bodies which are always parallel to each other, so that when the outer diameter pressing by the coupling bodies 10A and 10B is not performed, as shown in fig. 2c and 5a, the outer diameter pressing by the coupling bodies 10A and 10B is performed, the divided grooved portions are turned outward as a reference to form a slope structure which is inclined outward at an inclination angle of 5 ° to 30 °, and when the outer diameter pressing by the coupling bodies 10A and 10B is performed, the divided grooved portions 21 are turned outward as a reference to uniformly ground-shaped support by the inner diameter surface of the housing pressing groove 12 formed in the coupling bodies 10A and 10B in a planar structure, so that the inner diameter fastening piece 22B is tightly ground-shaped supported by the outer diameter of the connection end 110 of the pipe 100A and 100B to further secure the sealing property between the connection ends of the pipes.
The elastic close contact edge portion 22 is formed such that the inner end of the outer diameter pressing piece 22a is connected to the side portion of the split groove portion 21, and the elastic close contact edge portion 22 elastically turns inward and outward around the inner end of the outer diameter pressing piece 22a depending on whether or not the coupling bodies 10A and 10B are pressed.
That is, the expanded pipe sealing edge portions 22 formed on both the left and right sides of the ring gasket 20 of the present invention elastically expand the pipe by turning outward around the split groove portions 21 having a relatively thin thickness according to whether or not the pipe is pressed by the outer diameter of the coupling main bodies 10A and 10B, or contract the pipe by turning inward around the split groove portions 21 according to the pressing, so that interference and friction with the pipes 100A and 100B are minimized in the process of inserting the pipes 100A and 100B into the ring gasket 20, and when the insertion of each of the pipes 100A and 100B is completed, the pipe is pressed by the coupling main bodies 10A and 10B, and the pipe is tightly adhered to the outer diameter of the connection end 110 of the pipes 100A and 100B by the contracted pipe.
Therefore, when the outer diameter pressing is not performed by the coupling bodies 10A and 10B, the elastic close contact edge portion 22 including the outer diameter pressing piece 22a, the side wall portion 22c, and the inner diameter close contact piece 22B is turned outward around the divided groove portion 21, and finally, the elastic close contact edge portion 22 turned outward forms the pipe expansion entrance paths S1 and S2, respectively, whose diameters are gradually narrowed from the outer side toward the inner side, in the inner diameters of both sides of the ring-shaped spacer 20.
Therefore, as shown in fig. 5, the elastic contact edge portion 22 is expanded outward around the split groove portion 21 during the process of entering the pipes 100A and 100B that are not pressed by the coupling bodies 10A and 10B to ensure sufficient pipe expansion entering paths S1 and S2 of the pipe connection ends entering from both sides, and therefore the connection end 110 of the pipes 100A and 100B can stably enter the ring gasket 20 through the pipe expansion entering paths S1 and S2 without excessively interfering with or rubbing against the ring gasket 20.
After the pipe entering process is completed, as shown in fig. 6, the elastic close-contact edge portion 22 including the outer diameter pressing piece 22a, the side wall portion 22c, and the inner diameter close-contact piece 22B is pressed by the coupling bodies 10A and 10B, and the elastic close-contact edge portion 22 is turned inward around the divided groove portion 21 by the pressing of the coupling bodies 10A and 10B, and finally, the expanded pipe entering paths S1 and S2 are closely contacted to the outer diameter of the connection end 110 of the pipes 100A and 100B into which the inner diameter close-contact piece 22B enters while being contracted.
As shown in fig. 7, when the coupling bodies 10A and 10B are brought close to each other by the tightening portions 30, the inner diameter surfaces are brought into close contact with the outer diameters of the connecting ends 110 of the pipes 100A and 100B that have entered, by turning inward with reference to the split grooved portions 21 while being pressed inward by the inner walls of the receiving and pressing grooves 12 and the inner walls of the arcuate bent ends 11 that form the inner diameter surfaces of the coupling bodies 10A and 10B.
Therefore, the annular gasket 20 of the present embodiment has the following specificity: in a state of being completely separated from the coupling body, the coupling member is not forcibly pressed to enter the connection end of the pipe to be connected, but is pulled and attached to the coupling body 10A, 10B to be disposed between the coupling bodies and to enter the connection end 110 of the pipe 100A, 100B to be connected, and is coupled thereto.
More preferably, a dividing edge portion 23 for limiting the depth of entry of the connection end 110 of the pipes 100A and 100B entering along the expanded pipe entry paths S1 and S2 is further disposed on the inner diameter of the divided groove portion 21 constituting the annular gasket 20, so that the connection end 110 of the pipes 100A and 100B to be connected enters at a set depth.
On the other hand, in the process of entering the connection end 110 of the pipe 110A, 100B in the annular gasket 20, the joint main bodies 10A, 10B are maintained in a state of being spaced apart by a predetermined distance or more, and an entering space S having a sufficient diameter is formed between the joint main bodies 10A, 10B.
For example, if the sufficient entry space S is not formed between the coupling bodies 10A and 10B, physical interference occurs between the connection end of the pipe and the arc-shaped bent end 11 formed in the coupling bodies, and it is difficult for the entry space S to enter the connection end 110 of the pipe 100A or 100B in the ring gasket 20.
In view of such a problem, in the present embodiment, during the process of inserting the pipes 100A and 100B, the facing joint bodies 10A and 10B are supported at a distance equal to or greater than a predetermined distance, and are maintained at a distance equal to or greater than the predetermined distance.
Therefore, in the present embodiment, when the support spring 33 is disposed between the lug arms 13 and the traction force by the fastening of the fastening portion 30 cannot be provided, the coupling bodies 10A and 10B dividedly surrounding the outer wall of the annular washer 20 are supported by the support force of the support spring 33 so as to be spaced from each other as shown in fig. 5a, and a sufficient entry space S into which the connection end 110 of the pipes 100A and 100B enters is formed in the inner diameter portion.
In the present embodiment, the support spring 33 is disposed so as to penetrate the shank portion 31c of the assembly bolt 32 constituting the fastening portion 30, and the support spring 33 is supported so as to be shaped by the assembly bolt 32 penetrating between the lug arms 13, so that the lug arms 13 facing each other are spaced apart at a predetermined interval or more.
In addition, a housing portion 13c for housing the compressed support spring 33 is formed in a recessed manner in the facing surface of the facing lug arm 13, and the compressed support spring 33 is housed therein.
More preferably, cutouts 11a are formed at both ends of the arcuate bent ends 11 formed in the coupling bodies 10A and 10B so as to be obliquely cut, so that the gap between the coupling bodies 10A and 10B is minimized by the cutouts 11a to ensure a sufficient entering space S into which the connection ends 110 of the pipes 100A and 100B enter.
Therefore, in the process of entering the pipe of the present invention, as shown in fig. 5a, the pair of coupling bodies 10A and 10B that dividedly surround the annular gasket by the support spring 33 are spaced apart at a predetermined interval to form the entering space S, and at this time, the elastic close-contact edge portion 22 of the annular gasket 20 drawn to the inner diameter portion of the coupling bodies 10A and 10B is turned outward around the divided groove portion 21, and the expanded pipe entering paths S1 and S2 are formed in the elastic close-contact edge portion 22.
In this state, the operator enters the connection ends 110 of the pipes 100A and 100B into the entry space S along the longitudinal direction, and inserts and disposes the connection ends 110 of the pipes 100A and 100B into the expanded pipe entry paths S1 and S2 formed on both sides of the ring gasket 20.
Thereafter, as shown in fig. 7, the worker brings the joint bodies 10A and 10B that are dividedly surrounding the outer diameter of the ring-shaped gasket 20 into close proximity by clamping the assembly nuts 32 of the tightening part 30 to the assembly bolts 31, and brings the joint bodies 10A and 10B into close proximity, whereby the elastic close contact edge part 22 of the ring-shaped gasket 20 is brought into close contact with the outer diameter of the connection ends of the pipes 100A and 100B in the end-to-end state while turning inward around the divided grooved part 21.
In this process, the arc-shaped bent ends 11 formed in the respective joint bodies 10A, 10B enter the traction adhesion grooves 111 formed in the connection ends 110 of the pipes 100A, 100B and are subjected to traction adhesion, thereby physically restraining the pipes 100A, 100B connected end-to-end.
Claims (6)
1. A joint assembly for connecting piping, which ensures ease of construction, comprising:
two or more coupling bodies, each of which is composed of an arc-shaped molded body having a crown-shaped cross section and has lug arms formed at both side end portions, arc-shaped curved ends formed on both side inner walls of the arc-shaped molded body, and a receiving and extruding groove formed between the arc-shaped curved ends so as to be outwardly recessed;
an annular gasket formed of a hollow annular body made of a flexible material, and drawn, adhered and housed in the housing extrusion groove formed in the coupling body in a state where both side portions are supported by the arc-shaped bent end; and
a fastening part which penetrates through the lug arms of the opposite coupling bodies to enable the lug arms which are opposite to each other through fastening to approach each other, and presses the outer diameter surface of the connecting end of the pipe entering the interior of the loading space part and the outer diameter surface of the annular gasket arranged in the interior of the containing extrusion groove,
the annular gasket is composed of an annular body, and is integrally formed with:
a divided grooved portion formed in the central portion of the outer diameter so as to be recessed inward in the shape of "∪", the outer diameter portion being formed with an interference-preventing space;
and a pipe expanding seal edge portion having pipe expanding entrance paths formed on both left and right sides of the split groove portions, the pipe expanding entrance paths being turned outward around the split groove portions and inclined outward so that a diameter thereof gradually increases from a central portion toward an outer portion.
2. The pipe connecting joint assembly ensuring ease of construction according to claim 1,
the pipe expanding sealing edge part forms an entering path of the pipe connecting end entering from both sides in the length direction by expanding outward with the split groove part as the center in the entering process of the pipe not using the coupling body for extrusion, namely forms a pipe expanding entering path,
when the coupling bodies approach each other, the elastic sealing ring portion forming the expanded pipe entry path is pressed inward by the inner wall of the receiving and pressing groove forming the inner diameter surface of the coupling body and the inner wall of the arc-shaped bent end, and the elastic sealing ring portion is rotated inward on the basis of the split grooved portion to realize pipe contraction, so that the inner diameter surface is closely attached to the outer diameter of the pipe connection end entering along the expanded pipe entry path.
3. A joint assembly for pipe connection ensuring convenience of construction according to claim 2, wherein the expanded sealing edge portions formed on both sides of the divided grooved portion are integrally formed with:
the outer diameter pressing sheet is externally connected with the containing extrusion groove of the coupling body;
the inner diameter tight pasting piece is internally connected with the outer diameter piece of the connecting end of the tubing; and
and a side wall part formed between the outer side part of the outer diameter pressing sheet and the outer side part of the inner diameter fastening sheet, and used for spacing the outer diameter pressing sheet and the inner diameter fastening sheet in a concentric structure for supporting.
4. The joint assembly for connecting a pipe and a pipe according to claim 3, wherein the outer diameter pressing piece and the inner diameter pressing piece connected to each other by the side wall portion form a pipe expanding entrance path, and when the outer diameter pressing piece is not pressed by the coupling body, the outer diameter pressing piece and the outer diameter pressing piece are turned outward around the split groove portion to form an outward inclined surface structure, and the diameter of the inclined surface structure is gradually increased from the central portion to the outer side.
5. A pipe coupling joint assembly for ensuring ease of construction as set forth in claim 1 wherein cut-outs are formed in a beveled configuration at both ends of the arcuate bent end formed on the coupling body.
6. A pipe coupling joint assembly for securing ease of construction as set forth in claim 1, wherein a support spring is disposed between the lug arms of the opposing coupling bodies so that the opposing coupling bodies are spaced apart at a predetermined interval.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0127849 | 2019-10-15 | ||
| KR1020190127849A KR102137991B1 (en) | 2019-10-15 | 2019-10-15 | joint assembly for pipe joint having convenience in construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111365334A true CN111365334A (en) | 2020-07-03 |
| CN111365334B CN111365334B (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010226675.3A Active CN111365334B (en) | 2019-10-15 | 2020-03-27 | Joint assembly for pipe connection ensuring convenience of construction |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102137991B1 (en) |
| CN (1) | CN111365334B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220170275A (en) | 2021-06-22 | 2022-12-29 | (주) 금강씨에스 | Hinge type groove joint assembly having improved interal pressure sealing structure |
| KR102664136B1 (en) * | 2023-08-14 | 2024-05-08 | (주)뉴아세아 | Coupling assembly for pipe connection and manufacturing method thereof |
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|---|---|---|---|---|
| US5058906A (en) * | 1989-01-19 | 1991-10-22 | Vetco Gray Inc. | Integrally redundant seal |
| US20050253029A1 (en) * | 2004-05-14 | 2005-11-17 | Victaulic Company Of America | Deformable mechanical pipe coupling |
| JP2008019976A (en) * | 2006-07-12 | 2008-01-31 | Victaulic Co Of Japan Ltd | Housing type pipe joint |
| CN102656397A (en) * | 2009-10-27 | 2012-09-05 | 泰科消防产品有限合伙公司 | Systems and methods for pipe couplings |
| WO2018012743A1 (en) * | 2016-07-13 | 2018-01-18 | 주식회사 하이스텐 | Coupling |
| KR20180084229A (en) * | 2017-01-16 | 2018-07-25 | 강태식 | Fast groove joint |
| KR101901387B1 (en) * | 2018-04-04 | 2018-09-21 | 조용원 | Piping Coupling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2561098A1 (en) * | 2004-03-26 | 2005-10-13 | Victaulic Company | Pipes having wedging circumferential grooves |
| KR101508659B1 (en) | 2014-08-20 | 2015-04-07 | 강태식 | A device for tightening joint of pipe |
-
2019
- 2019-10-15 KR KR1020190127849A patent/KR102137991B1/en active IP Right Grant
-
2020
- 2020-03-27 CN CN202010226675.3A patent/CN111365334B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058906A (en) * | 1989-01-19 | 1991-10-22 | Vetco Gray Inc. | Integrally redundant seal |
| US20050253029A1 (en) * | 2004-05-14 | 2005-11-17 | Victaulic Company Of America | Deformable mechanical pipe coupling |
| CN101027515A (en) * | 2004-05-14 | 2007-08-29 | 维克托里克公司 | Deformable mechanical pipe coupling |
| JP2008019976A (en) * | 2006-07-12 | 2008-01-31 | Victaulic Co Of Japan Ltd | Housing type pipe joint |
| CN102656397A (en) * | 2009-10-27 | 2012-09-05 | 泰科消防产品有限合伙公司 | Systems and methods for pipe couplings |
| WO2018012743A1 (en) * | 2016-07-13 | 2018-01-18 | 주식회사 하이스텐 | Coupling |
| KR20180084229A (en) * | 2017-01-16 | 2018-07-25 | 강태식 | Fast groove joint |
| KR101901387B1 (en) * | 2018-04-04 | 2018-09-21 | 조용원 | Piping Coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111365334B (en) | 2022-05-13 |
| KR102137991B1 (en) | 2020-07-27 |
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