CN112628510A - Quick-connection type sealing elbow joint - Google Patents
Quick-connection type sealing elbow joint Download PDFInfo
- Publication number
- CN112628510A CN112628510A CN202011629891.9A CN202011629891A CN112628510A CN 112628510 A CN112628510 A CN 112628510A CN 202011629891 A CN202011629891 A CN 202011629891A CN 112628510 A CN112628510 A CN 112628510A
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- Prior art keywords
- sealing
- mounting groove
- hole
- groove
- arc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 112
- 210000002310 elbow joint Anatomy 0.000 title abstract description 9
- 238000005728 strengthening Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
Abstract
The invention discloses a quick-connection type sealing elbow joint which is used for obliquely connecting pipes and comprises a sealing element, a first connecting piece, a second connecting piece and a locking assembly, wherein the first connecting piece is fixedly connected with the pipe; the sealing element comprises a sealing cavity, a first sealing hole and a second sealing hole, the first sealing hole and the second sealing hole are arranged at two ends of the sealing cavity, the locking assembly is connected with the first connecting piece and the second connecting piece in a locking mode, the first connecting piece and the second connecting piece are folded to form a sealing groove, a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are arranged at two ends of the sealing groove, and the first connecting hole is inclined relative to the second connecting hole; the sealing element is arranged in the sealing groove, the axis of the first sealing hole is coincided with the axis of the first connecting hole, and the axis of the second sealing hole is coincided with the axis of the second connecting hole. The quick-connection type sealing elbow joint can be used for obliquely connecting a fluid conveying pipeline, and is strong in part adaptability, quick to install, convenient to operate and excellent in sealing performance.
Description
Technical Field
The invention relates to the technical field of sealing joints, in particular to a quick-connection type sealing elbow joint.
Background
The pipe joint is a connecting part commonly used for fluid conveying, most of the existing sealing pipe joints are fixed joints, and the sealing effect is poor when the joint of the pipe and the joint is spliced and matched or clamped and folded; alternatively, two pipelines are connected to a pipeline joint by welding, the sealing effect of the welded connection part is greatly influenced by the welding process, the connection efficiency by adopting the welding connection is low, and the connection operation is labor-consuming and time-consuming, so that improvement is needed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a quick-connect sealing elbow connector.
In order to achieve the purpose, the invention adopts the technical scheme that: a quick-connection type sealing elbow joint is used for obliquely connecting pipes and comprises a sealing element, a first connecting piece, a second connecting piece and a locking assembly;
the sealing element comprises a sealing cavity, a first sealing hole and a second sealing hole, the first sealing hole and the second sealing hole are arranged at two ends of the sealing cavity, the locking assembly is connected with the first connecting piece and the second connecting piece in a locking mode, the first connecting piece and the second connecting piece are folded to form a sealing groove, a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are arranged at two ends of the sealing groove, and the first connecting hole is inclined relative to the second connecting hole;
the sealing element is arranged in the sealing groove, the axis of the first sealing hole is coincided with the axis of the first connecting hole, and the axis of the second sealing hole is coincided with the axis of the second connecting hole.
Optionally: an included angle between the axis of the first connecting hole and the axis of the second connecting hole is A, wherein A is more than or equal to 30 degrees and less than or equal to 60 degrees.
Optionally: the sealing element also comprises a first sealing flange extending obliquely towards the axial direction of the first sealing hole and a second sealing flange extending obliquely towards the axial direction of the second sealing hole.
Optionally: the first connecting piece comprises a first mounting groove and a second mounting groove which are curved in an arc shape, and a first arc-shaped part connecting the first mounting groove and the second mounting groove, and the second connecting piece comprises a third mounting groove and a fourth mounting groove which are curved in an arc shape, and a second arc-shaped part connecting the third mounting groove and the fourth mounting groove; the first mounting groove and the third mounting groove are folded to form the first connecting hole, the second mounting groove and the fourth mounting groove are folded to form the second connecting hole, and the first arc-shaped part and the second arc-shaped part are folded to form the sealing groove.
Optionally: the first mounting groove and the second mounting groove are symmetrical to each other about the first arc portion.
Optionally: the groove walls of the first mounting groove, the first arc-shaped part and the second mounting groove are sequentially connected to form a first locking edge and a second locking edge, the first locking edge comprises a first arc-shaped edge corresponding to the first arc-shaped part, the second locking edge comprises a second arc-shaped edge corresponding to the first arc-shaped part, and the corresponding arc length of the first arc-shaped edge is smaller than that of the second arc-shaped edge; the first locking edge comprises first locking holes arranged at intervals, and the second locking edge comprises second locking holes arranged at intervals; the number of the first locking holes is less than or equal to the number of the second locking holes.
Optionally: the first connecting piece comprises a first limiting groove formed by the groove wall of the first mounting groove in a recessed mode, and the first limiting groove extends from the first locking edge to the second locking edge in a plane perpendicular to the axis of the first connecting hole.
Optionally: the first mounting groove further comprises at least one anti-rotation groove arranged at intervals, and the anti-rotation groove is formed by the groove wall of the first mounting groove in a recessed mode and is parallel to the axis of the first connecting hole.
Optionally: first connecting piece still includes the strengthening rib that at least one interval set up, the strengthening rib set up in the periphery wall of first mounting groove, just the strengthening rib is on a parallel with the axis of first connecting hole.
Optionally: the first connecting piece and the second connecting piece are symmetrical to each other.
After adopting the structure, compared with the prior art, the invention has the advantages that: the quick-connection type sealing elbow joint can be used for obliquely connecting a fluid conveying pipeline, and is strong in part adaptability, quick to install, convenient to operate and excellent in sealing performance.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic overall structural view of a first embodiment of a quick connect sealing elbow connector;
FIG. 2 is an exploded view of a first embodiment of the quick connect sealed elbow connector;
FIG. 3 is a schematic view of the seal of the first embodiment of the quick connect sealing elbow connector;
FIG. 4 is a schematic view of a first coupling member of the first embodiment of the quick connect sealing elbow connector;
FIG. 5 is a schematic view of a second connector configuration of the first embodiment of the quick connect sealed elbow connector;
FIG. 6 is a schematic view of a first connector configuration of a second embodiment of a quick connect sealing elbow;
fig. 7 is a schematic view of the first connector structure of a third embodiment of the quick connect sealing elbow connector.
In the figure: a first connecting member 10; a first mounting groove 11; a first retaining groove 111; a first tapered wall 112; a first reinforcing bump 113; a first anti-rotation slot 114; a reinforcing rib 115; a second mounting groove 12; a second limiting groove 121; a second tapered wall 122; the second reinforcing bump 123; a second anti-rotation slot 124; a first arc-shaped portion 13; a second connecting member 20; a third mounting groove 21; a third limiting groove 211; a third tapered wall 212; a fourth mounting groove 22; a fourth limiting groove 221; a fourth tapered wall 222; a second arc-shaped portion 23; a seal member 30; a first seal hole 31; a first sealing flange 311; a second seal bore 32; a second sealing flange 321; a sealed cavity 33; a locking assembly 40; a screw 41; a nut 42; a first locking edge 51; the first locking hole 511; a first arcuate edge 512; a second locking edge 52; a second locking hole 521; a second arcuate edge 522; a third locking edge 53; a third locking hole 531; a third arcuate edge 532; a fourth locking edge 54; a fourth locking hole 541; a fourth arcuate edge 542; a first connection hole 61; and a second connecting hole 62.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation to be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A first embodiment of a quick-connect sealing elbow fitting, shown in figures 1 to 3: comprises a sealing element 30, a first connecting piece 10, a second connecting piece 20 and a locking component 40; the sealing element 30 comprises a sealing cavity 33, a first sealing hole 31 and a second sealing hole 32 which are arranged at two ends of the sealing cavity 33, the locking assembly 40 is locked and connected with the first connecting element 10 and the second connecting element 20, the first connecting element 10 and the second connecting element 20 are folded to form a sealing groove, a first connecting hole 61 and a second connecting hole 62 which are arranged at two ends of the sealing groove, and the first connecting hole 61 is inclined relative to the second connecting hole 62; the sealing member 30 is disposed in the sealing groove, and the axis of the first sealing hole 31 coincides with the axis of the first connection hole 61, and the axis of the second sealing hole 32 coincides with the axis of the second connection hole 62. The quick-connection type sealing elbow joint can be used for obliquely connecting a fluid conveying pipeline, and is strong in part adaptability, quick to install, convenient to operate and excellent in sealing performance.
Optimally:
as shown in fig. 4: the groove walls of the first mounting groove 11, the first arc-shaped part 13 and the second mounting groove 12 are sequentially connected to form a first locking edge 51 and a second locking edge 52, the first locking edge 51 comprises a first arc-shaped edge 512 corresponding to the first arc-shaped part 13, the second locking edge 52 comprises a second arc-shaped edge 522 corresponding to the first arc-shaped part 13, and the corresponding arc length of the first arc-shaped edge 512 is smaller than that of the second arc-shaped edge 522; the first locking edge 51 comprises first locking holes 511 arranged at intervals, and the second locking edge 52 comprises second locking holes 521 arranged at intervals; the number of the first locking holes 511 is less than or equal to the number of the second locking holes 521.
As shown in fig. 5: the second connector 20 comprises a third locking edge 53 arranged opposite to the first locking edge 51 and a fourth locking edge 54 arranged opposite to the second locking edge 52, the third locking edge 53 comprises a third arc-shaped edge 532 corresponding to the second arc-shaped part 23, and the fourth locking edge 54 comprises a fourth arc-shaped edge 542 corresponding to the second arc-shaped part 23; the third locking edge 53 includes spaced third locking holes 531, and the fourth locking edge 54 includes spaced fourth locking holes 541. The third locking hole 531 is disposed coaxially with the first locking hole 511, and the fourth locking hole 541 is disposed coaxially with the second locking hole 521. The locking assembly 40 includes a screw 41 and a nut 42, the screw 41 passes through the first locking hole 511 and the third locking hole 531 and cooperates with the nut 42, and the locking assembly 40 lockingly connects the first locking edge 51 and the third locking edge 53, and lockingly connects the second locking edge 52 and the fourth locking edge 54.
The seal 30 further includes a first seal flange 311 extending obliquely in the axial direction of the first seal hole 31 and a second seal flange 321 extending obliquely in the axial direction of the second seal hole 32. The first mounting groove 11 comprises a first tapered wall 112 matched with the first sealing flanging 311, the third mounting groove 21 comprises a third tapered wall 212 symmetrically arranged with the first tapered wall 112, one end of the first sealing flanging 311 is abutted against the first tapered wall 112 and the third tapered wall 212, and the other end is abutted against the outer wall of the pipeline; the second mounting groove 12 includes a second tapered wall 122 cooperating with the second sealing flange 321, the fourth mounting groove 22 includes a fourth tapered wall 222 symmetrically disposed with the second tapered wall 122, one end of the second sealing flange 321 abuts against the second tapered wall 122 and the fourth tapered wall 222, and the other end abuts against the outer wall of the pipe. The pipeline is connected to the sealing element 30 in an inserting mode, the first sealing flange 311 and the second sealing flange 321 are inclined relative to the outer wall of the pipeline, acting force between the pipeline and the sealing element 30 is increased, and the sealing effect of the sealing element 30 is better.
The first connecting member 10 includes a first mounting groove 11, a second mounting groove 12, and a first arc portion 13 connecting the first mounting groove 11 and the second mounting groove 12, wherein the first mounting groove 11 and the second mounting groove 12 are symmetrical with respect to the first arc portion 13. The first connecting member 10 and the second connecting member 20 are symmetrical to each other. The second connecting member 20 includes a third mounting groove 21 and a fourth mounting groove 22 which are curved in an arc shape, and a second arc portion 23 connecting the third mounting groove 21 and the fourth mounting groove 22; the first and third mounting grooves 11 and 21 are folded to form a first connection hole 61, the second and fourth mounting grooves 12 and 22 are folded to form a second connection hole 62, and the first and second arc parts 13 and 23 are folded to form a sealing groove. The first and second mounting grooves 11 and 12 are symmetrical to each other about the first arc portion 13, and the first and second connection members 10 and 20 are symmetrical to each other. The first connecting piece 10 and the second connecting piece 20 are identical in structure, and the first connecting piece 10 and the second connecting piece 20 can be used alternatively in the installation direction, so that the installation is more convenient.
The first connecting member 10 includes a first stopper groove 111 formed by recessing a groove wall of the first mounting groove 11 and a second stopper groove 121 formed by recessing a groove wall of the second mounting groove 12; the first limiting groove 111 extends from the first locking edge 51 to the second locking edge 52 in a plane perpendicular to the axis of the first connecting hole 61, and the second limiting groove 121 extends from the first locking edge 51 to the second locking edge 52 in a plane perpendicular to the axis of the second connecting hole 62. The second connection member 20 includes a third stopper groove 211 formed by recessing the groove wall of the third mounting groove 21 and a fourth stopper groove 221 formed by recessing the groove wall of the fourth mounting groove 22; the third limiting groove 211 extends from the third locking edge 53 to the fourth locking edge 54 in a plane perpendicular to the axis of the first connecting hole 61, and the fourth limiting groove 221 extends from the third locking edge 53 to the fourth locking edge 54 in a plane perpendicular to the axis of the second connecting hole 62. The first limiting groove 111 and the third limiting groove 211 are folded to form a first clamp groove (not shown), the second limiting groove 121 and the fourth limiting groove 221 are folded to form a second clamp groove (not shown), the pipeline comprises an annular convex rib matched with the first clamp groove and the second clamp groove, or a clamp is additionally arranged around the outer wall of the pipeline, the first clamp groove and the second clamp groove are matched with the annular convex rib, and the pipeline is prevented from sliding along the axial direction of the first connecting hole 61 or the second connecting hole 62.
The first connecting member 10 further includes at least one reinforcing rib 115 disposed at an interval, the reinforcing rib 115 is disposed on the outer circumferential wall of the first mounting groove 11, and the reinforcing rib 115 is parallel to the axis of the first connecting hole 61. The arrangement of the reinforcing ribs 115 can increase the structural strength of the quick-connection type sealing elbow connector.
An included angle between the axis of the first connecting hole 61 and the axis of the second connecting hole 62 is A, wherein A is more than or equal to 30 degrees and less than or equal to 60 degrees. For example, a may be set to 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees. Compared with a sealing connection joint which is vertically connected, the angle A is arranged in the range, so that different requirements of inclined connection angles can be met, and the quick-connection type sealing elbow joint has higher structural strength.
A second embodiment of a quick-connect sealing elbow, shown in fig. 6, differs from the above-described embodiment of a quick-connect sealing elbow in that: the first mounting groove 11 further comprises a first reinforcing convex point 113 arranged on the wall of the groove, the second mounting groove 12 further comprises a second reinforcing convex point 123 arranged on the wall of the groove, the first reinforcing convex point 113 and the second reinforcing convex point 123 abut against the outer wall of the pipeline, the clamping acting force of the quick-connection type sealing elbow connector and the pipeline is increased, and the connection is firmer.
A third embodiment of a quick-connect sealing elbow, shown in fig. 7, differs from the above-described embodiment of a quick-connect sealing elbow in that: the first mounting groove 11 further comprises at least one first anti-rotation groove 114 arranged at intervals, the first anti-rotation groove 114 is formed by recessing the groove wall of the first mounting groove 11, and the first anti-rotation groove 114 is parallel to the axis of the first connecting hole 61; the second mounting groove 12 includes a second anti-rotation groove 124 symmetrically disposed with the first anti-rotation groove 114. The pipe includes a rib that cooperates with the first and second anti-rotation slots 114 and 124, and the first and second anti-rotation slots 114 and 124 cooperate with the rib to prevent the pipe from rotating, thereby preventing the pipe from rotating and affecting the service life of the sealing member 30.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. Other structures and principles are the same as those of the prior art, and are not described in detail herein.
Claims (10)
1. The utility model provides a sealed elbow connection of quick-connect type for slope connection tubular product which characterized in that: the sealing device comprises a sealing element, a first connecting piece, a second connecting piece and a locking assembly;
the sealing element comprises a sealing cavity, a first sealing hole and a second sealing hole, the first sealing hole and the second sealing hole are arranged at two ends of the sealing cavity, the locking assembly is connected with the first connecting piece and the second connecting piece in a locking mode, the first connecting piece and the second connecting piece are folded to form a sealing groove, a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are arranged at two ends of the sealing groove, and the first connecting hole is inclined relative to the second connecting hole;
the sealing element is arranged in the sealing groove, the axis of the first sealing hole is coincided with the axis of the first connecting hole, and the axis of the second sealing hole is coincided with the axis of the second connecting hole.
2. The quick connect sealed elbow connector according to claim 1, wherein: an included angle between the axis of the first connecting hole and the axis of the second connecting hole is A, wherein A is more than or equal to 30 degrees and less than or equal to 60 degrees.
3. The quick connect sealed elbow connector according to claim 1, wherein: the sealing element also comprises a first sealing flange extending obliquely towards the axial direction of the first sealing hole and a second sealing flange extending obliquely towards the axial direction of the second sealing hole.
4. The quick connect sealed elbow connector according to claim 1, wherein: the first connecting piece comprises a first mounting groove and a second mounting groove which are curved in an arc shape, and a first arc-shaped part connecting the first mounting groove and the second mounting groove, and the second connecting piece comprises a third mounting groove and a fourth mounting groove which are curved in an arc shape, and a second arc-shaped part connecting the third mounting groove and the fourth mounting groove; the first mounting groove and the third mounting groove are folded to form the first connecting hole, the second mounting groove and the fourth mounting groove are folded to form the second connecting hole, and the first arc-shaped part and the second arc-shaped part are folded to form the sealing groove.
5. The quick connect sealed elbow connector according to claim 4, wherein: the first mounting groove and the second mounting groove are symmetrical to each other about the first arc portion.
6. The quick connect sealed elbow connector according to claim 4, wherein: the groove walls of the first mounting groove, the first arc-shaped part and the second mounting groove are sequentially connected to form a first locking edge and a second locking edge, the first locking edge comprises a first arc-shaped edge corresponding to the first arc-shaped part, the second locking edge comprises a second arc-shaped edge corresponding to the first arc-shaped part, and the corresponding arc length of the first arc-shaped edge is smaller than that of the second arc-shaped edge; the first locking edge comprises first locking holes arranged at intervals, and the second locking edge comprises second locking holes arranged at intervals; the number of the first locking holes is less than or equal to the number of the second locking holes.
7. The quick connect sealed elbow connector according to claim 6, wherein: the first connecting piece comprises a first limiting groove formed by the groove wall of the first mounting groove in a recessed mode, and the first limiting groove extends from the first locking edge to the second locking edge in a plane perpendicular to the axis of the first connecting hole.
8. The quick connect sealed elbow connector according to claim 7, wherein: the first mounting groove further comprises at least one anti-rotation groove arranged at intervals, and the anti-rotation groove is formed by the groove wall of the first mounting groove in a recessed mode and is parallel to the axis of the first connecting hole.
9. The quick connect sealed elbow connector according to claim 8, wherein: first connecting piece still includes the strengthening rib that at least one interval set up, the strengthening rib set up in the periphery wall of first mounting groove, just the strengthening rib is on a parallel with the axis of first connecting hole.
10. The quick connect sealing elbow connector according to any one of claims 1 to 9, wherein: the first connecting piece and the second connecting piece are symmetrical to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629891.9A CN112628510A (en) | 2020-12-31 | 2020-12-31 | Quick-connection type sealing elbow joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629891.9A CN112628510A (en) | 2020-12-31 | 2020-12-31 | Quick-connection type sealing elbow joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628510A true CN112628510A (en) | 2021-04-09 |
Family
ID=75289767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011629891.9A Pending CN112628510A (en) | 2020-12-31 | 2020-12-31 | Quick-connection type sealing elbow joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628510A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596935A (en) * | 1969-03-12 | 1971-08-03 | George Mcgeoch Sr | Jacketed pipe fitting |
| US5022685A (en) * | 1989-08-21 | 1991-06-11 | Hal Stiskin | Secondary containment system and method |
| US20080007061A1 (en) * | 2004-05-14 | 2008-01-10 | Victaulic Company | Deformable mechanical pipe coupling |
| CN201162910Y (en) * | 2007-11-13 | 2008-12-10 | 苏州工业园区斯特劳勃管接头有限公司 | Seal pipe joint and its housing |
| CN104204639A (en) * | 2012-02-02 | 2014-12-10 | 维克托里克公司 | Fitting for joining pipe elements |
| CN104246341A (en) * | 2012-02-08 | 2014-12-24 | 维克托里克公司 | Fitting having receptacle of varying depth |
| CN205716120U (en) * | 2016-04-07 | 2016-11-23 | 大连凯斯博格设备制造有限公司 | A kind of assembling pipe joint with Simple sealing circle |
-
2020
- 2020-12-31 CN CN202011629891.9A patent/CN112628510A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596935A (en) * | 1969-03-12 | 1971-08-03 | George Mcgeoch Sr | Jacketed pipe fitting |
| US5022685A (en) * | 1989-08-21 | 1991-06-11 | Hal Stiskin | Secondary containment system and method |
| US20080007061A1 (en) * | 2004-05-14 | 2008-01-10 | Victaulic Company | Deformable mechanical pipe coupling |
| CN201162910Y (en) * | 2007-11-13 | 2008-12-10 | 苏州工业园区斯特劳勃管接头有限公司 | Seal pipe joint and its housing |
| CN104204639A (en) * | 2012-02-02 | 2014-12-10 | 维克托里克公司 | Fitting for joining pipe elements |
| CN104246341A (en) * | 2012-02-08 | 2014-12-24 | 维克托里克公司 | Fitting having receptacle of varying depth |
| CN205716120U (en) * | 2016-04-07 | 2016-11-23 | 大连凯斯博格设备制造有限公司 | A kind of assembling pipe joint with Simple sealing circle |
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Effective date of registration: 20220330 Address after: 315000 houcang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Applicant after: Zhejiang ELFA Fluid Technology Co.,Ltd. Address before: 315000 houcang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Applicant before: Ningbo Elfa Fluid Technology Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 315000 Xiufeng village, Gaoqiao Town, Haishu District, Ningbo, Zhejiang, China Applicant after: Zhejiang ELFA Fluid Technology Co.,Ltd. Address before: 315000 houcang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Applicant before: Zhejiang ELFA Fluid Technology Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210409 |