CN104264774B - A kind of leak check well bellmouth - Google Patents
A kind of leak check well bellmouth Download PDFInfo
- Publication number
- CN104264774B CN104264774B CN201410466839.4A CN201410466839A CN104264774B CN 104264774 B CN104264774 B CN 104264774B CN 201410466839 A CN201410466839 A CN 201410466839A CN 104264774 B CN104264774 B CN 104264774B
- Authority
- CN
- China
- Prior art keywords
- bellmouth
- detachable
- inner sleeve
- leak check
- fixing
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000008961 swelling Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 20
- 239000004033 plastic Substances 0.000 abstract description 12
- 238000007689 inspection Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F2005/028—Sealing joints between manhole segments
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/024—Manhole shafts or other inspection chambers; Snow-filling openings; accessories made of plastic material
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of leak check well bellmouth, relate to the sealing and connecting device field of bell mouth of plastic inspection well, comprise bellmouth, wherein, described bellmouth comprises fixing bellmouth and detachable bellmouth, and described detachable bellmouth is made up of the annular groove formed between overcoat, inner sleeve and inside and outside cover, and the outer wall of described fixing bellmouth is provided with external screw thread, the inwall of described overcoat is provided with the internal thread corresponding with described external screw thread, and the internal diameter of described fixing bellmouth is greater than the external diameter of described inner sleeve.The present invention, by screw thread, can compress the sealing ring between pipeline and bellmouth, thus reduces gap therebetween, and sealing performance is excellent, and is easy to operation.
Description
Technical field
The present invention relates to the sealing and connecting device field of bell mouth of plastic inspection well, refer more particularly to a kind of leak check well bellmouth.
Background technology
Manhole is for rain sewage vent line, the vertical shaft that underground utilities position is built at a certain distance, in order to connect the pipeline use of different tube diameters, different directions, differing heights, main confession maintainer people makes regular check on dredging pipeline, removes mud foreign matter, prevents line clogging etc., is one of urban road underground foundation facility.
Due to plastic drain-pipe and plastic inspection well lightweight, corrosion-resistant, pipe ring stiffness can design as required, sealing joint is good, non-leakage, effectively can prevent the pollution to underground water, and speed of application, hydraulics, cost performance etc. are all better than cement sewer pipe and the brick manhole of sand-lime, therefore use in a large number in the rain sewage drainage system such as town road, one residential.What the well seat part of plastic inspection well adopted mostly is disposable rotation molding, reaches the connection changing caliber and angle with accessories such as reducing joint, angle joint and rubber seal.Bell mouth of plastic inspection well is the undertaking pipe fitting that manhole connects different tube diameters, different directions, differing heights pipeline, should be connected, be connected again with plastic conduit with manhole well seat.Pit shaft, the connection of entering (going out) waterpipe and well seat adopt the flexible bayonet joint of rubber seal or heat shrinking sleeve to connect, the angle change among a small circle can be adapted to, convenient and quick construction, good seal performance, antiseep, effectively preventing the secondary pollution to underground water, is a kind of environmental protection and energy saving building materials.Bellmouth is connected with manhole well seat and is mostly Integratively formed structure and flange connection.
In prior art, bellows and manhole be connected with three kinds: (1) directly builds into manhole, grouts in the inwall of manhole around the mouth of pipe with cement bonded sand; (2) rubber ring joint method, can adopt self-expanding cushion rubber joint.Self-expanding rubber seal first can be enclosed within pipe end during installation and insert the borehole wall together with pipe; (3) adopt pipe fitting customized in advance, it is nuzzled in manhole in advance, then is connected with pipeline.These methods are all directly welded the connection of pipeline and manhole mostly, and be unfavorable for the maintenance in later stage, and its encapsulating method is very complicated, sealing effectiveness is not obvious.
Such as, Chinese patent application publication No.: CN102518199A, denomination of invention is: a kind of seal connecting method of bell mouth of plastic inspection well, it is first by bellmouth fill-in well bore, by thermofussion welding connection, bellmouth is welded on well seat, then plastic pipe concordant for port is inserted in the bell and spigot of bellmouth, fill the gap between bellmouth and plastic pipe with airtight and watertight padding, load sealing ring, finally by the clearance aperture between hot-melting sealed band sealing bellmouth and plastic pipe.Although this application case has certain sealing performance, its operating procedure is complicated, also need additionally to add airtight and watertight padding, and thermofussion welding connection makes bellmouth and plastic pipe be welded, is unfavorable for the maintenance during appearance seepage in later stage.
Summary of the invention
The invention provides a kind of leak check well bellmouth, solve sealing and connecting device in prior art and can not reach good sealing effectiveness and sealing device are not easy to later period maintenance and replacing problem because being welded.
For solving the problems of the technologies described above, technical scheme provided by the invention is:
A kind of leak check well bellmouth, comprise bellmouth, described bellmouth comprises fixing bellmouth and detachable bellmouth, and fixing bellmouth is detachably fixedly connected with detachable bellmouth.
Described detachable bellmouth is made up of jacket and inner sleeve, and jacket and inner sleeve end is connected, and forms annular groove between jacket and inner sleeve and phase connection divide.
The outer wall of described fixing bellmouth is provided with external screw thread, and the inwall of described overcoat is provided with the internal thread matched with described external screw thread, and the internal diameter of described fixing bellmouth is greater than the external diameter of the inner sleeve of described detachable bellmouth.
The internal diameter of described fixing bellmouth inwardly reduces gradually by with detachable bellmouth abutting end opening.
Described fixing bellmouth lateral cross section is wedge shape, and the inner sleeve cross section of detachable bellmouth is the wedge shape matched with described fixing bellmouth cross section.
Described inner sleeve inwall is provided with 2 ~ 5 O-ring seals, further to junction enhanced leaktightness.
The material of described O-ring seal be water swelling rubber after a procedure, sealing ring imbibition, its sealing effectiveness is better.
Described water swelling rubber is the one in natural rubber-acrylamide, butadiene-styrene rubber-acrylamide, haloflex-acrylamide, Starch-acrylamide.
Described detachable bellmouth outer wall symmetry offers several rotation slots inserted for rigid member, inserts rotation slot with rigidity object, conveniently pulls detachable bellmouth and fixes threads turn between bellmouth by screw thread.
Adopt technical scheme provided by the invention, compared with existing known technology,
There is following beneficial effect: the connection of bellmouth of the present invention and pipeline can not cause the situation of being welded, and it carries out disassemble and assemble work easily by screw thread, for pipeline connect or the maintenance in later stage all extremely convenient; Sealing of the present invention is extremely strong, and first, in the present invention, inner sleeve provides larger extruding force to the sealing ring that the work progress between bellmouth and pipeline adds, and the gap between compression bellmouth and pipeline, can reach good sealing effectiveness; Moreover, inner sleeve inwall is provided with O-ring seal, strengthens its sealing once again; Finally add the characteristic of water suction self-expansion type rubber, reduce the gap between bellmouth and pipeline further, reach higher sealed horizontal; The present invention does not need to increase the appendage such as filler, does not need the additional process such as hot melt process yet, and technique and structure are simply, easy to operate.
Accompanying drawing explanation
Sectional structure schematic diagram when Fig. 1 is a kind of leak check well bellmouth connecting pipe of the present invention.
Fig. 2 is the left view of detachable bellmouth of the present invention.
Fig. 3 is the front view view of detachable bellmouth of the present invention.
Label declaration in schematic diagram:
1, fixing bellmouth; 11, external screw thread; 2, detachable bellmouth; 3, overcoat; 31, internal thread; 4, inner sleeve; 5, annular groove; 6, sealing ring; 7, O-ring seal; 8, pipeline; 9, rotation slot.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is further described in detail.
Composition graphs 1 ~ 3, a kind of leak check well bellmouth of the present invention, comprise bellmouth, its bellmouth comprises fixing bellmouth 1 and detachable bellmouth 2, detachable bellmouth 2 is made up of the annular groove 5 formed between overcoat 3, inner sleeve 4 and inside and outside cover, the outer wall of fixing bellmouth 1 is provided with external screw thread 11, and the inwall of overcoat 3 is provided with the internal thread 31 corresponding with described external screw thread 11, and the internal diameter of fixing bellmouth 1 is greater than the external diameter of described inner sleeve 4.In addition, the wedge shape that the cross section fixing bellmouth 1 reduces gradually for internal diameter from outside to inside, the cross section of inner sleeve 4 is the wedge shape corresponding with fixing bellmouth 1, inner sleeve 4 inwall is provided with 2 ~ 5 O-ring seals 7, the equal water swelling rubber of its material, imbibition rubber can be any one in glue natural rubber-acrylamide, butadiene-styrene rubber-acrylamide, haloflex-acrylamide, Starch-acrylamide, and detachable bellmouth 2 outer wall symmetry offers several rotation slots 9.During use, first detachable bellmouth 2 on the outer wall cover of pipeline 8, then the sealing ring 6 that material is water suction self-expansion type rubber is put, pipeline 8 is inserted together with detachable bellmouth 2 in fixing bellmouth 1, rotation slot 9 is inserted with rigidity object, pulling detachable bellmouth 2 makes it be rotated on fixing bellmouth 1 by screw thread, thus reduces the space between bellmouth and pipeline 8, threaded together.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of the technical program technical scheme, it all should be encompassed in the middle of the right of the technical program.
Claims (7)
1. a leak check well bellmouth, comprises bellmouth, it is characterized in that, described bellmouth comprises fixing bellmouth and detachable bellmouth, and fixing bellmouth is detachably fixedly connected with detachable bellmouth; Described detachable bellmouth is made up of jacket and inner sleeve, and jacket and inner sleeve end is connected, and forms annular groove between jacket and inner sleeve and phase connection divide; The outer wall of described fixing bellmouth is provided with external screw thread, and the inwall of described overcoat is provided with the internal thread matched with described external screw thread, and the internal diameter of described fixing bellmouth is greater than the external diameter of the inner sleeve of described detachable bellmouth.
2. a kind of leak check well bellmouth according to claim 1, is characterized in that, the internal diameter of described fixing bellmouth inwardly reduces gradually by with detachable bellmouth abutting end opening.
3. a kind of leak check well bellmouth according to claim 2, is characterized in that, described fixing bellmouth lateral cross section is wedge shape, and the inner sleeve cross section of detachable bellmouth is the wedge shape matched with described fixing bellmouth cross section.
4., according to described a kind of leak check well bellmouth arbitrary in claims 1 to 3, it is characterized in that, described inner sleeve inwall is provided with 2 ~ 5 O-ring seals.
5. a kind of leak check well bellmouth according to claim 4, is characterized in that, the material of described O-ring seal is water swelling rubber.
6. a kind of leak check well bellmouth according to claim 5, is characterized in that, described water swelling rubber is the one in natural rubber-acrylamide, butadiene-styrene rubber-acrylamide, haloflex-acrylamide, Starch-acrylamide.
7. a kind of leak check well bellmouth according to claim 6, is characterized in that, described detachable bellmouth outer wall symmetry offers several rotation slots inserted for rigid member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466839.4A CN104264774B (en) | 2014-09-15 | 2014-09-15 | A kind of leak check well bellmouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466839.4A CN104264774B (en) | 2014-09-15 | 2014-09-15 | A kind of leak check well bellmouth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104264774A CN104264774A (en) | 2015-01-07 |
| CN104264774B true CN104264774B (en) | 2015-11-18 |
Family
ID=52156337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466839.4A Expired - Fee Related CN104264774B (en) | 2014-09-15 | 2014-09-15 | A kind of leak check well bellmouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104264774B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056997A (en) * | 2018-08-27 | 2018-12-21 | 嘉兴汇昌塑业有限公司 | A kind of trapped well seat convenient for safeguarding |
| CN110387942A (en) * | 2019-07-19 | 2019-10-29 | 李�荣 | Sewage network inspection shaft |
| CN110886921A (en) * | 2019-11-18 | 2020-03-17 | 常州天常管道系统有限公司 | Sealed glass steel pipeline |
| CN113884248A (en) * | 2021-09-01 | 2022-01-04 | 沪东中华造船(集团)有限公司 | Tightness test method for ship pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2608802Y (en) * | 2003-04-02 | 2004-03-31 | 江苏法尔胜新型管业有限公司 | Connecting device of plastic pipe and inspecting well |
| CN1894531A (en) * | 2003-12-17 | 2007-01-10 | 东京都 | Pipe connection structure |
| CN201635091U (en) * | 2010-04-02 | 2010-11-17 | 张应忠 | Sealing structure of plastic inspection well and spigot of dual-wall corrugated tube |
| CN202031163U (en) * | 2011-04-27 | 2011-11-09 | 昆明普尔顿管业有限公司 | Inspection well with plug-in sleeve |
| CN102518199A (en) * | 2011-12-15 | 2012-06-27 | 昆明理工大学 | Hermetic connecting method for bell mouth of plastic inspection well |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4950736B2 (en) * | 2007-04-02 | 2012-06-13 | 株式会社サンリツ | Connection structure between manhole and sewer pipe |
-
2014
- 2014-09-15 CN CN201410466839.4A patent/CN104264774B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2608802Y (en) * | 2003-04-02 | 2004-03-31 | 江苏法尔胜新型管业有限公司 | Connecting device of plastic pipe and inspecting well |
| CN1894531A (en) * | 2003-12-17 | 2007-01-10 | 东京都 | Pipe connection structure |
| CN201635091U (en) * | 2010-04-02 | 2010-11-17 | 张应忠 | Sealing structure of plastic inspection well and spigot of dual-wall corrugated tube |
| CN202031163U (en) * | 2011-04-27 | 2011-11-09 | 昆明普尔顿管业有限公司 | Inspection well with plug-in sleeve |
| CN102518199A (en) * | 2011-12-15 | 2012-06-27 | 昆明理工大学 | Hermetic connecting method for bell mouth of plastic inspection well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104264774A (en) | 2015-01-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |