CN109990148B - Pipe orifice sealing device of catalytic muffler - Google Patents
Pipe orifice sealing device of catalytic muffler Download PDFInfo
- Publication number
- CN109990148B CN109990148B CN201910372625.3A CN201910372625A CN109990148B CN 109990148 B CN109990148 B CN 109990148B CN 201910372625 A CN201910372625 A CN 201910372625A CN 109990148 B CN109990148 B CN 109990148B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- double
- wall
- positioning
- layer
- Prior art date
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a catalytic muffler pipe orifice sealing device which comprises a double-layer sealing sleeve matched with the inner wall and the outer wall of a muffler pipe orifice, wherein the outer layer of the double-layer sealing sleeve is an outer conical surface sealing layer, the front end of the double-layer sealing sleeve is provided with a connecting flange, the rear end of the double-layer sealing sleeve is provided with an inner conical surface sliding sleeve matched with the outer surface of the double-layer sealing sleeve, the double-layer sealing sleeve is provided with a locking screw sleeve matched with the outer wall of the inner conical surface sliding sleeve, and the rear end of the locking screw sleeve is provided with a positioning end cover propped against the rear end face of the inner conical surface sliding sleeve. The invention relates to a pipe orifice sealing device of a catalytic muffler, which belongs to the technical field of emission test of whole vehicles, has reasonable structural design, good tightness and convenient installation, and can not damage the pipe orifice of the muffler with a notch groove; the operation is simple, the sealing device is convenient to disassemble and assemble, and the test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of emission test of whole vehicles, in particular to a pipe orifice sealing device of a catalytic muffler.
Background
At present, when a catalytic muffler needs to be subjected to a catalytic conversion rate test, an air outlet pipe of the catalytic muffler is of a pipe orifice structure with a notch groove, when the pipe orifice with the notch groove needs to be sealed, the pipe orifice with the notch groove is usually cut, then a special flange is welded, a common graphite flat gasket is used for sealing, and after the test is finished, the pipe orifice with the notch groove is welded again. Such a treatment not only affects the appearance and quality of the product, but also results in low production efficiency.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and aims to provide an integrated design and compact catalytic muffler pipe orifice sealing device.
In order to achieve the above purpose, the invention provides a catalytic muffler pipe orifice sealing device, which comprises a double-layer sealing sleeve matched with the inner wall and the outer wall of a muffler pipe orifice, wherein the outer layer of the double-layer sealing sleeve is an outer conical surface sealing layer, the front end of the double-layer sealing sleeve is provided with a connecting flange, the rear end of the double-layer sealing sleeve is provided with an inner conical surface sliding sleeve matched with the outer surface of the double-layer sealing sleeve, the double-layer sealing sleeve is provided with a locking screw sleeve matched with the outer wall of the inner conical surface sliding sleeve, and the rear end of the locking screw sleeve is provided with a positioning end cover propped against the rear end face of the inner conical surface sliding sleeve.
Further, a graphite tape winding layer is arranged between the outer layer of the double-layer sealing sleeve and the outer wall of the pipe orifice of the muffler.
Furthermore, the outer edge of the connecting flange is provided with a plurality of uniformly arranged connecting holes.
As a further improvement, the double-layer sealing sleeve comprises a positioning sleeve which is matched with the inner wall of the pipe orifice of the silencer and an expansion sleeve which is matched with the outer wall of the pipe orifice of the silencer and the inner conical surface of the inner conical surface sliding sleeve, and the connecting flange is arranged at the front end of the expansion sleeve.
Furthermore, the rear end of the expansion sleeve is provided with a plurality of conical wedge blocks which are circumferentially arranged, the rear end of the expansion sleeve is provided with a positioning convex edge which is matched with the locking screw sleeve, and the positioning convex edge is provided with external threads connected with the locking screw sleeve.
Furthermore, a positioning step structure which is mutually limited is arranged between the inner wall of the expansion sleeve and the outer wall of the positioning sleeve.
Furthermore, a yielding groove is arranged between the conical wedge block and the positioning convex edge, and a containing cavity is formed between the conical wedge block and the positioning convex edge, the locking screw sleeve and the inner conical sliding sleeve.
Furthermore, a plurality of evenly distributed flat structures are arranged between the positioning convex edges and the connecting flange on the outer wall of the expansion sleeve.
As a further improvement, a locking screw is arranged between the locking screw sleeve and the positioning end cover; the positioning end cover is of a hollow annular structure.
Furthermore, a positioning spigot which is mutually axially limited is arranged between the rear end of the inner wall of the locking screw sleeve and the rear end of the outer wall of the inner conical sliding sleeve.
Advantageous effects
Compared with the prior art, the pipe orifice sealing device of the catalytic muffler has the following beneficial effects: the sealing device for the pipe orifice of the catalytic muffler has reasonable structural design, good tightness and convenient installation, and can not damage the pipe orifice of the muffler with the notch groove; the operation is simple, the sealing device is convenient to disassemble and assemble, and the test efficiency is improved.
Drawings
FIG. 1 is a cross-sectional view of the catalytic muffler nozzle sealing apparatus of the present invention;
FIG. 2 is a left side view of the construction of the catalytic muffler nozzle sealing device of the present invention;
FIG. 3 is an enlarged cross-sectional view of the inner cone sliding sleeve of the present invention;
FIG. 4 is an enlarged front view of the locking nut of the present invention;
FIG. 5 is a cross-sectional view of the structure in the direction A-A of FIG. 4;
Figure 6 is a front elevational view of the double layer gland of the present invention;
Figure 7 is a cross-sectional view of the double layer gland of the present invention;
fig. 8 is a schematic structural assembly view of the catalytic muffler nozzle sealing device of the present invention.
In the figure: 1. positioning an end cover; 11. countersink; 2. a locking screw; 3. an inner conical sliding sleeve; 4. a locking screw sleeve; 5. a double-layer sealing sleeve; 501. a connecting flange; 502. a positioning sleeve; 503. expanding sleeve; 504. positioning the convex edge; 505. a conical wedge; 506. a relief groove; 507. a connection hole; 6. a muffler pipe orifice; 7. and a graphite tape winding layer.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
The specific embodiments of the present invention are as follows: as shown in fig. 1-8, a catalytic muffler pipe orifice sealing device comprises a double-layer sealing sleeve 5 which is matched with the inner wall and the outer wall of a muffler pipe orifice 6, wherein the outer layer of the double-layer sealing sleeve 5 is an outer conical surface sealing layer, the front end of the double-layer sealing sleeve 5 is provided with a connecting flange 501, the rear end of the double-layer sealing sleeve 5 is provided with an inner conical surface sliding sleeve 3 which is matched with the outer surface of the double-layer sealing sleeve 5, the double-layer sealing sleeve 5 is provided with a locking screw sleeve 4 which is matched with the outer wall of the inner conical surface sliding sleeve 3, and the rear end of the locking screw sleeve 4 is provided with a positioning end cover 1 which is propped against the rear end face of the inner conical surface sliding sleeve 3; in the catalytic muffler pipe orifice sealing device, the inner layer of the double-layer sealing sleeve 5 is matched with the inner wall of the pipe orifice with the notch groove, so that the positioning is realized, the center line is ensured to coincide, and the outer layer of the double-layer sealing sleeve 5 is matched with the outer wall of the muffler pipe orifice 6 with the notch groove, so that the primary sealing is realized; then, on the outer conical surface sealing layer of double-deck seal cover 5 was gone up to interior conical surface sliding sleeve 3, locking swivel nut 4 and location end cover 1 extrudeed interior conical surface sliding sleeve 3 to make outer conical surface sealing layer radially extrude to silencer mouth of pipe 6, realize sealedly, simple to operate, the leakproofness is good, can not lead to the fact the damage to the silencer mouth of pipe 6 in taking the breach groove.
In this embodiment, be equipped with graphite tape winding layer 7 between the outer of double-deck seal cover 5 and the outer wall of silencer mouth of pipe 6, graphite tape winding layer 7 twines on silencer mouth of pipe 6, through the outer conical surface sealing layer of extrusion double-deck seal cover 5, makes and connects closely between outer conical surface sealing layer and graphite tape winding layer 7, the silencer mouth of pipe 6, can not take place to leak, and the leakproofness is good.
In this embodiment, friction lines are provided on the outer surface of the locking screw sleeve 4, so that the locking screw sleeve 4 can be conveniently screwed and disassembled.
In this embodiment, the double-layer sealing sleeve 5 includes a positioning sleeve 502 adapted to the inner wall of the muffler pipe orifice 6, and an expansion sleeve 503 adapted to the outer wall of the muffler pipe orifice 6 and the inner conical surface of the inner conical surface sliding sleeve 3, the connecting flange 501 is disposed at the front end of the expansion sleeve 503, the expansion sleeve 503 can deform, and the outer wall of the expansion sleeve 503 is extruded; the inner wall of the expansion sleeve 503 and the front end of the positioning sleeve 502 are fixed by brazing to form a combined structure, a connecting structure is not required to be arranged at the front ends of the expansion sleeve 503 and the positioning sleeve 502, the processing procedures are reduced, and the production efficiency is improved.
In this embodiment, the rear end of the expansion sleeve 503 is provided with a plurality of conical wedges 505 arranged in a circumference manner, the outer conical surface of the conical wedges 505 is matched with the inner conical sliding sleeve 3, the inclination angle of the conical surface is 15 ° to 30 °, the conical wedges 505 are prevented from being broken or irrecoverable deformation due to overlarge angle transformation when being pressed, the rear end of the expansion sleeve 503 is provided with a positioning convex edge 504 matched with the locking screw sleeve 4, the positioning convex edge 504 is provided with an external thread connected with the locking screw sleeve 4, and the external thread is quickly connected with the expansion sleeve 503 through the thread, and the positioning end cover 1 pair is conveniently adjusted; the setting of the positioning convex edge 504 makes the inner diameter of the locking screw sleeve 4 larger than the maximum outer diameter of the conical wedge 505, so that the inner conical surface sliding sleeve 3 can be conveniently accommodated, the wall thickness of the front end of the inner conical surface sliding sleeve 3 is increased, and the phenomenon that the inner conical surface sliding sleeve 3 is folded due to over thinness is prevented.
Meanwhile, a yielding groove 506 is formed between the conical wedge 505 and the positioning convex edge 504, and an accommodating cavity is formed between the conical wedge 505 and the positioning convex edge 504, between the conical wedge 505 and the locking screw sleeve 4 and between the conical wedge 505 and the inner conical surface sliding sleeve 3, so that the situation that the inner conical surface sliding sleeve 3 cannot be assembled due to overlong axial length is avoided, and the conical wedge can be matched with the inner conical surface sliding sleeves 3 with different lengths, and the adaptation is better; an elastic sealing gasket is arranged in the accommodating cavity, so that the tightness is improved.
In this embodiment, a positioning step structure with mutual limitation is arranged between the inner wall of the expansion sleeve 503 and the outer wall of the positioning sleeve 502, so that the positioning sleeve 502 and the expansion sleeve 503 are positioned conveniently, and then fixed by welding; the outer contour of the positioning sleeve 502 is of a three-stage ladder-shaped structure with a large front end and a small rear end, so that the rear ends of the positioning sleeve 502 and the expansion sleeve 503 have a distance for accommodating the muffler pipe orifice 6.
In this embodiment, a plurality of flat structures which are uniformly distributed are arranged between the positioning convex edge 504 and the connecting flange 501 on the outer wall of the expansion sleeve 503, so that the expansion sleeve 503 is positioned by a spanner, and then the locking screw sleeve 4 is twisted to prevent the expansion sleeve 503 and the muffler pipe orifice 6 from rotating relatively.
In this embodiment, the conical wedge 505 is an expanded elastomer with an outer cone, which can generate plastic deformation with a certain amplitude, has better sealing performance, has a damping effect, and reduces the probability of damaging the muffler pipe orifice 6 and the expansion sleeve 503.
In the embodiment, a locking screw 2 is arranged between a locking screw sleeve 4 and a positioning end cover 1; the positioning end cover 1 is of a hollow annular structure, and when in assembly, the positioning end cover 1 and the locking screw sleeve 4 are fixed through the locking screw 2 to form a combined structure; the locating end cover 1 is provided with a counter bore 11 which is matched with the screw rod of the locking screw 2 and the screw head, and the counter bore can accommodate the screw head, so that the structure is more compact.
In this embodiment, a positioning spigot which is limited in the axial direction is arranged between the rear end of the inner wall of the locking screw sleeve 4 and the rear end of the outer wall of the inner conical surface sliding sleeve 3, so that the inner conical surface sliding sleeve 3 is positioned between the locking screw sleeve 4 and the positioning end cover 1, and the inner conical surface sliding sleeve 3, the locking screw sleeve 4 and the positioning end cover 1 are combined into an integral assembly for assembly, and the assembly efficiency is improved.
In this embodiment, the outer edge of the connection flange 501 is provided with a plurality of connection holes 507 uniformly arranged, and the connection flange 501 can be connected with a common pipe by bolts.
The specific installation process is as follows: firstly, the inner conical sliding sleeve 3, the locking screw sleeve 4 and the positioning end cover 1 are combined into a whole to be installed on the expansion sleeve 503 of the double-layer sealing sleeve 5, so that the locking screw sleeve 4 is ensured to be in a moment-free (unscrewed) state, and then a layer of high-temperature-resistant graphite tape winding layer 7 is wound on the muffler pipe orifice 6 with a notch groove of the catalytic muffler (the winding direction is noted, and the winding layer filler is not folded in the process of pushing the double-layer sealing sleeve 5 into the pipe orifice). The expansion sleeve 503 of the double-layer sealing sleeve 5 is pushed into the limit position by positioning and guiding the inner wall of the muffler pipe orifice 6 through the positioning sleeve 502. The locking screw sleeve 4 is tightened by a wrench, the positioning end cover 1 drives the inner conical surface sliding sleeve 3 to axially move, the muffler pipe orifice 6 with the notch groove can be connected and sealed through the expanding elastomer of the expanding sleeve 503, the graphite tape winding layer 7 and the positioning sleeve 502, and then the muffler pipe orifice can be connected with a common pipe through the connecting flange 501.
The disassembling process is as follows: the locking screw sleeve 4 is unscrewed by a wrench, and due to the arrangement of the positioning spigot, the locking screw sleeve 4 can drive the inner conical surface sliding sleeve 3 to axially move, the expanding elastomer of the expansion sleeve 503 is separated from the graphite tape winding layer 7, and then the positioning sleeve 502 and the expansion sleeve 503 are pulled out by the hand.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (2)
1. The utility model provides a catalytic muffler mouth of pipe sealing device, its characterized in that includes double-deck seal cover (5) that suits with the inside and outside wall of silencer mouth of pipe (6), the skin of double-deck seal cover (5) is the outer conical surface sealing layer, the front end of double-deck seal cover (5) is equipped with flange (501), the rear end of double-deck seal cover (5) is equipped with interior conical surface sliding sleeve (3) that suits with the surface of double-deck seal cover (5), be equipped with on double-deck seal cover (5) locking swivel nut (4) that the outer wall of interior conical surface sliding sleeve (3) suits, locating end cover (1) with the rear end face of interior conical surface sliding sleeve (3) offset is installed to the rear end of locking swivel nut (4);
The double-layer sealing sleeve (5) comprises a positioning sleeve (502) which is matched with the inner wall of the muffler pipe orifice (6) and an expansion sleeve (503) which is matched with the outer wall of the muffler pipe orifice (6) and the inner conical surface of the inner conical surface sliding sleeve (3), and the connecting flange (501) is arranged at the front end of the expansion sleeve (503);
The rear end of the expansion sleeve (503) is provided with a plurality of conical wedge blocks (505) which are circumferentially arranged, the rear end of the expansion sleeve (503) is provided with a positioning convex edge (504) which is matched with the locking screw sleeve (4), and the positioning convex edge (504) is provided with external threads connected with the locking screw sleeve (4);
A positioning step structure which is mutually limited is arranged between the inner wall of the expansion sleeve (503) and the outer wall of the positioning sleeve (502); the outer contour of the positioning sleeve (502) is of a three-stage ladder-shaped structure with a large front end and a small rear end;
A yielding groove (506) is formed between the conical wedge block (505) and the positioning convex edge (504), and a containing cavity is formed between the conical wedge block (505) and the positioning convex edge (504), the locking screw sleeve (4) and the inner conical sliding sleeve (3);
A graphite tape winding layer (7) is arranged between the outer layer of the double-layer sealing sleeve (5) and the outer wall of the muffler pipe orifice (6);
the outer edge of the connecting flange (501) is provided with a plurality of uniformly arranged connecting holes (507);
A locking screw (2) is arranged between the locking screw sleeve (4) and the positioning end cover (1); the positioning end cover (1) is of a hollow annular structure;
And a positioning spigot which is mutually axially limited is arranged between the rear end of the inner wall of the locking screw sleeve (4) and the rear end of the outer wall of the inner conical sliding sleeve (3).
2. A catalytic muffler pipe orifice sealing device according to claim 1, wherein a plurality of evenly distributed flat structures are arranged on the outer wall of the expansion sleeve (503) between the positioning flange (504) and the connecting flange (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372625.3A CN109990148B (en) | 2019-05-06 | 2019-05-06 | Pipe orifice sealing device of catalytic muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372625.3A CN109990148B (en) | 2019-05-06 | 2019-05-06 | Pipe orifice sealing device of catalytic muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109990148A CN109990148A (en) | 2019-07-09 |
| CN109990148B true CN109990148B (en) | 2024-05-03 |
Family
ID=67136066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910372625.3A Active CN109990148B (en) | 2019-05-06 | 2019-05-06 | Pipe orifice sealing device of catalytic muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990148B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825020A (en) * | 1957-05-01 | 1959-12-09 | Light & Power Accessories Comp | An improved clamping gland for armoured electric cables |
| JPH058183U (en) * | 1991-07-19 | 1993-02-05 | 三菱油化産資株式会社 | Coupling device for plastic tubes |
| JPH0550284U (en) * | 1991-12-09 | 1993-07-02 | 日立金属株式会社 | Double pipe fitting |
| US6378915B1 (en) * | 1998-08-24 | 2002-04-30 | Plasson Ltd. | Pipe coupling |
| JP2005257065A (en) * | 2004-02-10 | 2005-09-22 | Toyox Co Ltd | Hose joint |
| JP2007198543A (en) * | 2006-01-27 | 2007-08-09 | Sekisui Chem Co Ltd | Tube fitting |
| KR20080004462U (en) * | 2007-04-04 | 2008-10-08 | 최육남 | Coupling device of pipe |
| JP2009180258A (en) * | 2008-01-29 | 2009-08-13 | Onda Seisakusho Seki Kojo:Kk | Joint and inspection plug installed on the joint |
| CN102313091A (en) * | 2010-07-09 | 2012-01-11 | 兴化市通科机械有限公司 | Pipeline quick service sleeve joint |
| KR20120062207A (en) * | 2010-12-06 | 2012-06-14 | 성기천 | A connecter for refrigerant pipe |
| CN202647037U (en) * | 2012-07-13 | 2013-01-02 | 陈宪东 | Quick mending leakage device for glass steel pipeline |
| JP2013036542A (en) * | 2011-08-08 | 2013-02-21 | Daikin Industries Ltd | Guide ring for pipe joint, and pipe joint |
| CN102953862A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Sealing method and sealing device of circular hole of engine |
| CN204187168U (en) * | 2014-10-20 | 2015-03-04 | 李明康 | A kind of pipe fitting connects seal arrangement |
| CN104454841A (en) * | 2014-12-12 | 2015-03-25 | 中山市思锐摄影器材工业有限公司 | Waterproof telescopic pipe structure |
| CN105221877A (en) * | 2015-10-30 | 2016-01-06 | 安耐特流体输送科技有限公司 | Pipeline quick release coupling |
| CN205101740U (en) * | 2015-10-30 | 2016-03-23 | 安耐特流体输送科技有限公司 | Pipeline quick change coupler with quadruple is sealed |
| CN206831020U (en) * | 2017-05-12 | 2018-01-02 | 广西玉柴机器股份有限公司 | Engine rubber tube road test splice |
| KR101842448B1 (en) * | 2017-08-18 | 2018-03-27 | 주식회사 이앤아이비 | Fitting for Dual-layer Tube with Enhanced Seal Structure |
| CN108331988A (en) * | 2018-04-03 | 2018-07-27 | 亳州职业技术学院 | A kind of construction drainage pipeline and its efficient sealed attachment device and method |
| CN207796320U (en) * | 2017-11-24 | 2018-08-31 | 新疆登煌管业有限公司 | A kind of collar joint of plastic coated composite steel pipe |
| CN209818951U (en) * | 2019-05-06 | 2019-12-20 | 广西玉柴机器股份有限公司 | Catalytic muffler mouth of pipe sealing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6851728B2 (en) * | 2002-07-10 | 2005-02-08 | Hakko Metal Industries Ltd. | Pipe-coupling device |
-
2019
- 2019-05-06 CN CN201910372625.3A patent/CN109990148B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825020A (en) * | 1957-05-01 | 1959-12-09 | Light & Power Accessories Comp | An improved clamping gland for armoured electric cables |
| JPH058183U (en) * | 1991-07-19 | 1993-02-05 | 三菱油化産資株式会社 | Coupling device for plastic tubes |
| JPH0550284U (en) * | 1991-12-09 | 1993-07-02 | 日立金属株式会社 | Double pipe fitting |
| US6378915B1 (en) * | 1998-08-24 | 2002-04-30 | Plasson Ltd. | Pipe coupling |
| JP2005257065A (en) * | 2004-02-10 | 2005-09-22 | Toyox Co Ltd | Hose joint |
| JP2007198543A (en) * | 2006-01-27 | 2007-08-09 | Sekisui Chem Co Ltd | Tube fitting |
| KR20080004462U (en) * | 2007-04-04 | 2008-10-08 | 최육남 | Coupling device of pipe |
| JP2009180258A (en) * | 2008-01-29 | 2009-08-13 | Onda Seisakusho Seki Kojo:Kk | Joint and inspection plug installed on the joint |
| CN102313091A (en) * | 2010-07-09 | 2012-01-11 | 兴化市通科机械有限公司 | Pipeline quick service sleeve joint |
| KR20120062207A (en) * | 2010-12-06 | 2012-06-14 | 성기천 | A connecter for refrigerant pipe |
| JP2013036542A (en) * | 2011-08-08 | 2013-02-21 | Daikin Industries Ltd | Guide ring for pipe joint, and pipe joint |
| CN102953862A (en) * | 2011-08-29 | 2013-03-06 | 广西玉柴机器股份有限公司 | Sealing method and sealing device of circular hole of engine |
| CN202647037U (en) * | 2012-07-13 | 2013-01-02 | 陈宪东 | Quick mending leakage device for glass steel pipeline |
| CN204187168U (en) * | 2014-10-20 | 2015-03-04 | 李明康 | A kind of pipe fitting connects seal arrangement |
| CN104454841A (en) * | 2014-12-12 | 2015-03-25 | 中山市思锐摄影器材工业有限公司 | Waterproof telescopic pipe structure |
| CN105221877A (en) * | 2015-10-30 | 2016-01-06 | 安耐特流体输送科技有限公司 | Pipeline quick release coupling |
| CN205101740U (en) * | 2015-10-30 | 2016-03-23 | 安耐特流体输送科技有限公司 | Pipeline quick change coupler with quadruple is sealed |
| CN206831020U (en) * | 2017-05-12 | 2018-01-02 | 广西玉柴机器股份有限公司 | Engine rubber tube road test splice |
| KR101842448B1 (en) * | 2017-08-18 | 2018-03-27 | 주식회사 이앤아이비 | Fitting for Dual-layer Tube with Enhanced Seal Structure |
| CN207796320U (en) * | 2017-11-24 | 2018-08-31 | 新疆登煌管业有限公司 | A kind of collar joint of plastic coated composite steel pipe |
| CN108331988A (en) * | 2018-04-03 | 2018-07-27 | 亳州职业技术学院 | A kind of construction drainage pipeline and its efficient sealed attachment device and method |
| CN209818951U (en) * | 2019-05-06 | 2019-12-20 | 广西玉柴机器股份有限公司 | Catalytic muffler mouth of pipe sealing device |
Non-Patent Citations (1)
| Title |
|---|
| 井口槽用新型一体式套管头的设计与应用;程伟;綦耀光;杨笑松;祁红卫;;石油矿场机械(08);38-42 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109990148A (en) | 2019-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205261090U (en) | Pressure hose, connection spare part that uses rather than cooperation and composite set of two | |
| CN109990148B (en) | Pipe orifice sealing device of catalytic muffler | |
| CN209818951U (en) | Catalytic muffler mouth of pipe sealing device | |
| CN112763309B (en) | Thin-wall circular pipe hydraulic test device and test method | |
| CN201246554Y (en) | Corrugated tube joint | |
| CN202152893U (en) | Joint convenient for quick assembling and disassembling | |
| CN205901220U (en) | Pipe hole plugging device | |
| CN210860267U (en) | Blind plate for pressure pipeline | |
| CN108426775B (en) | External tightening type hydraulic test tool for small-specification thin-wall steel pipe | |
| CN213576197U (en) | Pipe end sealing structure | |
| CN206582451U (en) | Turn on joint | |
| CN214083734U (en) | Inflating valve | |
| CN214427123U (en) | Thin-wall round pipe hydraulic test device | |
| CN102868133A (en) | Device for plugging pipe orifice of cable pipe | |
| CN212776079U (en) | Steam rotary joint sealing device | |
| CN201255282Y (en) | Fastening sleeve type rapid sealing device of reducing pipe nozzle | |
| CN220262515U (en) | Double-deck airtight french air cock extension mouth | |
| CN220851232U (en) | Exhaust silencing pipe fitting of refrigerating system | |
| CN206598420U (en) | A kind of plug for mold cooling system | |
| CN206208666U (en) | A kind of pipeline pressure device | |
| CN207513673U (en) | A kind of attachment device in automobile exhaust purification equipment | |
| CN206386584U (en) | A kind of air-conditioning adapter assembly | |
| CN205824430U (en) | A kind of vacuum pipe retractor device of adjustable sealing specific pressure | |
| CN211175853U (en) | Obtuse angle joint for high-temperature hose of automobile | |
| CN218914039U (en) | Low-pressure fluid conveying pipe connecting piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |