CN106996122A - A kind of sealing structure of piping lane well - Google Patents
A kind of sealing structure of piping lane well Download PDFInfo
- Publication number
- CN106996122A CN106996122A CN201710367896.0A CN201710367896A CN106996122A CN 106996122 A CN106996122 A CN 106996122A CN 201710367896 A CN201710367896 A CN 201710367896A CN 106996122 A CN106996122 A CN 106996122A
- Authority
- CN
- China
- Prior art keywords
- manhole
- piping lane
- cover seat
- seal washer
- sealing
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/149—Annular gaskets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Sewage (AREA)
Abstract
The invention provides a kind of sealing structure of piping lane well, belong to technical field of fixed buildings.It solves the problem of sealing after existing piping lane well is buried is poor.The sealing structure of this piping lane well, including the sealing convex edge at least one on cover seat of manhole outer peripheral face in a ring, being located on cover seat of manhole outer peripheral face at the position below sealing convex edge also has circumferentially distributed spacing preiection, seal washer is arranged with cover seat of manhole outer peripheral face, clip is arranged with outside seal washer, seal washer lower surface can be resisted against on spacing preiection, and can make seal washer upper end that elastic deformation occur upwardly after clip holds seal washer tightly.The sealing structure of this piping lane well on cover seat of manhole by setting seal washer and clip, clip, which holds seal washer tightly, to be made seal washer upper end that elastic deformation occur upwardly and is close to medium, effective sealing to the gap between cover seat of manhole and medium is formed, the sealing effectiveness of piping lane well is improved.
Description
Technical field
The invention belongs to technical field of fixed buildings, it is related to a kind of piping lane well, particularly a kind of sealing knot of piping lane well
Structure.
Background technology
Pipe gallery is to build to have enough spaces in a passage, passage in Urban Underground, for laying electric power, leading to
Cable, heat supply, supply and water supply line are interrogated, and realizes municipal drainage, the lifeline for ensureing city operations is formd.
For example, Chinese patent【Application number 201510950889.4；Application publication number CN 105386460A】Disclosed one kind
Urban Underground intelligent comprehensive piping lane, including some intelligent multifunctional comprehensive sewer pipes being buried in below urban green belts,
Also include maintenance to import and export, the maintenance well for being included in and excavating in public transport waiting booth is imported and exported in maintenance, repairs four angles of well
Pour and be integrated with four support columns of public transport waiting booth, under the upstream and downstream of maintenance well is respectively intelligent multifunctional comprehensive
Waterpipe.
Pipe gallery is used for the sewer pipe well of blowdown draining, or is generally all used for the inspection shaft installed and repaired
Construct and obtain on ground, cost is higher, add the overall construction cost of pipe gallery.There is presently no separately fabricated special
For the piping lane well of pipe gallery, the sealing for having pressure water and embedded place that existing inspection shaft can not also meet piping lane well will
Ask.
For example, Chinese patent【Application number 201620494823.9；Authorization Notice No. CN 205677032U】Disclosed one kind
Plastic inspection well for ease of maintenaince, including well seat, pit shaft, well lid and the sedimentation basin for being arranged on well seat bottom, pit shaft and
The wall structure of well seat is followed successively by tube wall outer layer, fiber prepreg tape intermediate layer and tube wall internal layer from outside to inside；Pit shaft includes
Some sections of bodys with bell and spigot, each section of body socket joint connection composition pit shaft, the upper end of well seat is welded with bell and spigot, well
Cylinder is plugged in the bell and spigot of well seat and sealed and is fixed on well seat.As can be seen that well lid is installed on from the patent specification
It is embedded on the pedestal of subsurface, pedestal is connected with pit shaft socket joint.
The problem of structure of above-mentioned inspection shaft is present be：Pedestal is directly embedded in ground, the medium of pedestal and surrounding
In still suffer from gap, the sewage in ground is penetrated into and is flowed directly to outside inspection shaft by gap.By this inspection shaft
Structure be applied directly in pipe gallery system, probably due to sealing problem causes pipe gallery water leakage inside, influence is integrated
The normal operation of piping lane function.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of sealing structure of piping lane well,
Present invention solves the technical problem that being how to improve the sealing effectiveness after piping lane well is buried.
The purpose of the present invention can be realized by following technical proposal：A kind of sealing structure of piping lane well, the piping lane well
Including main body, tubular cover seat of manhole is connected with the top of the main body, it is characterised in that the sealing structure of this piping lane well includes
It is located at least one sealing convex edge in a ring on cover seat of manhole outer peripheral face, the cover seat of manhole outer peripheral face under sealing convex edge
Also have on circumferentially distributed spacing preiection, the cover seat of manhole outer peripheral face at the position of side and be arranged with seal washer, it is described close
Clip is arranged with outside seal washer, the seal washer lower surface can be resisted against on above-mentioned spacing preiection, and sealing is held tightly in clip
It can make seal washer upper end that elastic deformation occur upwardly after packing ring.
The work progress of the sealing structure of this piping lane well is：After piping lane well is installed, to being poured between ground and cover seat of manhole
Medium, the sealing convex edge that cover seat of manhole is embedded on subsurface, cover seat of manhole is located in medium, the infiltration of barrier water downwards.It is spacing
The raised bottom with medium is maintained a certain distance, and seal washer and clip are respectively positioned between spacing preiection and medium, sealing gasket
Circle lower surface is resisted against on spacing preiection, and the bottom plate of seal washer upper surface and medium mutually reclines or existed gap, passes through card
Hoop holds seal washer tightly, makes seal washer upper end that elastic deformation occur upwardly and is close to medium, is formed to cover seat of manhole and medium
Between gap effective sealing.
Seal washer is arranged on cover seat of manhole before medium is poured in the sealing structure of this piping lane well, without being poured in medium
Ensure the close contact of medium and seal washer during building, and seal washer is sent out subsequently through clip crush seal packing ring
Raw elastic deformation, so that it is close to medium, and close degree can be adjusted, it is to avoid and the water on ground is between cover seat of manhole and medium
Gap penetrate into pipe gallery, improve piping lane well it is embedded after sealing effectiveness.
Preferably, in the sealing structure of above-mentioned piping lane well, the seal washer lower surface is resisted against above-mentioned spacing
Clip lower surface can be also resisted against on spacing preiection when in projection, and puts down the upper surface of clip and the upper surface of seal washer
Together.Spacing preiection can be played in spacing and guide effect, clip contraction process to clip to contract can hold sealing gasket tightly
Enclose and uniform extruding force is applied to seal washer outer peripheral face so that can also keep smooth after the facial disfigurement of seal washer upper end, and
Medium bottom is close to, seal washer is improved to the sealing effectiveness between cover seat of manhole and medium.
As further preferred, in the sealing structure of above-mentioned piping lane well, the internal diameter of the seal washer is equal to well lid
The external diameter of seat.The outer peripheral face of seal washer inner ring and cover seat of manhole is fitted close, make seal washer extruded by clip after upper surface
It is easier to deform.
In the sealing structure of above-mentioned piping lane well, the spacing preiection in a ring and circumferentially surrounds cover seat of manhole periphery
Face.It is such to be shaped such that spacing preiection fully support seal washer, be conducive to seal washer extruded by clip after on
Homogeneous deformation occurs upwards for end face, further improves sealing effectiveness.
In the sealing structure of above-mentioned piping lane well, the quantity of the sealing convex edge be it is multiple, the sealing convex edge according to
Height is different along the axially staggered arrangement of cover seat of manhole.It is staggered by the different sealing convex edge of height, well can be penetrated into part
Water between cage and medium is guided to sidepiece, reduces the water for continuing to penetrate down into, and reduces the pressure at sealing, improves sealing
Effect.
In the sealing structure of above-mentioned piping lane well, at least one pit shaft is provided between the main body and cover seat of manhole and is led to
Flange connection is crossed to be connected.By setting pit shaft and main body, cover seat of manhole being connected with pit shaft by flange connection, it is applicable
In the situation that pipe gallery depth is larger, and the intensity for connecting main body, cover seat of manhole and pit shaft is higher, better reliability.
Have preferably, in the sealing structure of above-mentioned piping lane well, inside the cover seat of manhole metal framework and
Injection molding is obtained on the basis of metal framework, the circulation that there are several to supply injected plastics material to flow through on the metal framework
Hole.Single injection-molded has obtained cover seat of manhole on the basis of metal framework so that the self-strength of cover seat of manhole is significantly improved；Gold
Category framework is provided with opening so that in injection molding process, injected plastics material can be by opening in metal framework
Fully flow inside and outside side, it is to avoid injected plastics material shrinks bearing capacity caused by making product internal stress excessive and declines or even occur
The problem of drawing crack, so as to ensure that the self-strength of cover seat of manhole so that piping lane well can be applied to the environment for having pressure water.
As further preferred, in the sealing structure of above-mentioned piping lane well, the metal framework includes main body framework
With the flange skeleton positioned at main body framework one end.By setting flange skeleton to improve the bonding strength of flange connection,
Improve the ability of pressure water.
Alternatively, in the sealing structure of above-mentioned piping lane well, the main body and cover seat of manhole are connected by flange
Binding structure is connected.
Compared with prior art, the advantage of the sealing structure of this piping lane well is：
1st, the sealing structure of this piping lane well on cover seat of manhole by setting seal washer and clip, and clip holds seal washer tightly
Make seal washer upper end that elastic deformation occur upwardly and be close to medium, formed to the effective of the gap between cover seat of manhole and medium
Sealing, improves the sealing effectiveness of piping lane well.
2nd, the sealing structure of this piping lane well plays spacing and guide effect to clip by spacing preiection to contract, makes card
Bind round in contraction process and uniform extruding force is applied to seal washer outer peripheral face, so that also can after the facial disfigurement of seal washer upper end
Keep smooth, and be close to medium bottom, improve sealing effectiveness of the seal washer to gap between cover seat of manhole and medium.
3rd, the cover seat of manhole of the sealing structure of this piping lane well uses the injection molding on the basis of metal framework to obtain, and passes through
Flange connection is connected with pit shaft and main body, improves cover seat of manhole self-strength and bonding strength, can be applied to have pressure
The environment of water.
Brief description of the drawings
Fig. 1 is the structural representation of piping lane well in the present invention.
Fig. 2 be piping lane well in the present invention cover seat of manhole it is embedded after cross-sectional view and partial enlarged drawing.
Fig. 3 is the cover seat of manhole structural representation of piping lane well in the present invention.
Fig. 4 is the metallic plate skeleton structure schematic diagram and partial enlarged drawing of cover seat of manhole in the present invention.
In figure, 1, main body；2nd, cover seat of manhole；21st, convex edge is sealed；22nd, spacing preiection；3rd, seal washer；4th, clip；5th, well
Cylinder；6th, flange connection；61st, flange connecting portion one；62nd, flange connecting portion two；63rd, flange connecting portion three；64th, bolt；7、
Metal framework；71st, opening；72、；Main body framework；73rd, flange skeleton；8th, concrete；9th, well lid.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one：
Piping lane well include main body 1, cover seat of manhole 2, pit shaft 5 and well lid 9, this piping lane well include sealing convex edge 21, limit convex
Play 22, seal washer 3 and clip 4.
Specifically, as shown in figure 1, cover seat of manhole 2 is cylindrical in shape, cover seat of manhole 2 is connected to the top of main body 1.In the present embodiment,
Main body 1 and cover seat of manhole 2 are connected by a pit shaft 5 between main body 1 and cover seat of manhole 2.The bottom of cover seat of manhole 2 has flange
Connecting portion 1, the two ends of pit shaft 5 are respectively provided with flange connecting portion 2 62, and the top of main body 1 has flange connecting portion 3 63, flange
Connecting portion 1 and the flange connecting portion 2 62 of the one end of pit shaft 5 are connected by bolt 64, and flange connecting portion 3 63 and pit shaft 5 are another
The flange connecting portion 2 62 at end is connected by bolt 64.So as to make main body 1, cover seat of manhole 2 and pit shaft 5 pass through flange connection 6
It is connected.By setting pit shaft 5 and by suitable for the larger situation of pipe gallery depth, and connect main body 1, cover seat of manhole 2 and pit shaft 5
The intensity that connects is higher, better reliability.In actual production and manufacturing process, it can also be set between main body 1 and cover seat of manhole 2
Multiple pit shafts 5.
As shown in figure 3, having five sealing convex edges 21 in the present embodiment, on the outer peripheral face of cover seat of manhole 2, the basis of convex edge 21 is sealed
Height is different, is axially just staggered along cover seat of manhole 2.Also, sealing the thickness of convex edge 21 can also be different.Pass through height
Different sealing convex edges 21 are staggered, and can guide the water that part is penetrated between cover seat of manhole 2 and medium to sidepiece, reduce after
The continuous water penetrated down into, reduces the pressure at sealing, improves sealing effectiveness.In actual production and manufacturing process, sealing
The quantity of convex edge 21 can also be multiple in addition to five.
As shown in figure 3, being arranged with seal washer 3 on the outer peripheral face of cover seat of manhole 2, clip 4 is arranged with outside seal washer 3.It is spacing
Projection 22 is located on the outer peripheral face of cover seat of manhole 2, and at the position of the lower section of sealing convex edge 21.In the present embodiment, spacing preiection 22
In a ring and circumferentially surround the outer peripheral face of cover seat of manhole 2.In actual production and manufacturing process, spacing preiection 22 can also be edge
Circumferentially distributed multiple of the outer peripheral face of cover seat of manhole 2.
The work progress of the sealing structure of this piping lane well is：Main body 1, pit shaft 5 and the cover seat of manhole 2 of piping lane well pass sequentially through method
After flange connection structure 6 is installed, to being poured between ground and cover seat of manhole 2 in medium, the present embodiment, medium is concrete eight.As schemed
Shown in 1, the sealing convex edge 21 that cover seat of manhole 2 is embedded on subsurface, cover seat of manhole 2 by concrete eight is located in concrete eight, resistance
Water proof permeates downwards.As shown in Fig. 2 the bottom of spacing preiection 22 and concrete eight is maintained a certain distance, seal washer 3 and card
Hoop 4 is respectively positioned between spacing preiection 22 and concrete eight, and the lower surface of seal washer 3 is resisted against on spacing preiection 22, seal washer 3
The bottom plate of upper surface and concrete eight mutually reclines or existed gap, holds seal washer 3 tightly by clip 4, makes on seal washer 3
End face occurs elastic deformation and is close to concrete eight upwards, forms effective sealing to the gap between cover seat of manhole 2 and concrete eight.
Preferably, the lower surface of clip 4 can also be supported when the lower surface of seal washer 3 is resisted against on above-mentioned spacing preiection 22
Lean against on spacing preiection 22, and make the upper surface of clip 4 concordant with the upper surface of seal washer 3.Spacing preiection 22 can be to card
Hoop 4 played to contract can hold seal washer 3 tightly in spacing and guide effect, the contraction process of clip 4 and to seal washer 3 outside
Side face applies uniform extruding force so that can also keep smooth after the upper end facial disfigurement of seal washer 3, and be close to concrete eight bottom
Portion, improves seal washer 3 to the sealing effectiveness between cover seat of manhole 2 and concrete eight.
As further preferred scheme, the internal diameter of seal washer 3 is equal to the external diameter of cover seat of manhole 2.The inner ring of seal washer 3 and well
The outer peripheral face of cage 2 is fitted close, and makes seal washer 3 be easier to deform by upper surface after the extruding of clip 4.
Preferably, as shown in Figure 3 and Figure 4, the inside of cover seat of manhole 2 has metal framework 7 and in metal framework 7
On the basis of injection molding obtain, on metal framework 7 there are several to supply the opening 71 that flows through of injected plastics material.In metal tabulare
Single injection-molded has obtained cover seat of manhole 2 on the basis of frame 7 so that the self-strength of cover seat of manhole 2 is significantly improved.Metal framework 7
There is provided opening 71 so that in injection molding process, injected plastics material can by opening 71 in metal framework 7,
Lateral surface fully flows, it is to avoid injected plastics material shrinks bearing capacity caused by making product internal stress excessive and declines or even drawing crack occur
The problem of, so as to ensure that the self-strength of cover seat of manhole 2 so that piping lane well can be applied to the environment for having pressure water.
As further preferred scheme, metal framework 7 includes main body framework 72 and the method positioned at the one end of main body framework 72
Blue skeleton 73.By setting flange skeleton 73 to improve the bonding strength of flange connection 6, the energy of pressure water is improved
Power.
In the sealing structure of this piping lane well seal washer 3 before concrete eight is poured be arranged on cover seat of manhole 2 on, without
Ensure the close contact of concrete eight and seal washer 3 in concrete eight casting process, and subsequently through the crush seal pad of clip 4
Circle 3 makes seal washer 3 occur elastic deformation, so that it is close to concrete eight, and close degree can be adjusted, it is to avoid on ground
Water is penetrated into pipe gallery from the gap between cover seat of manhole 2 and concrete eight, improves the sealing effectiveness after piping lane well is buried.
The cover seat of manhole 2 of this piping lane well by the basis of metal framework 7 injection molding obtain, improve the self-strength of cover seat of manhole 2；
Main body 1, cover seat of manhole 2 are connected with pit shaft 5 by flange connection 6, improve the bonding strength of piping lane well, so that piping lane
The working environment of pressure water is adapted to, with the lifting of this sealing property for combining piping lane well, piping lane well is improved in draining pressure
The normal operation of pipe gallery is ensure that under the higher environment of power.
Embodiment two：
Technical scheme in the present embodiment is essentially identical with technical scheme in embodiment one, and difference is, this reality
Apply in example, main body 1 is directly connected with cover seat of manhole 2 by flange connection 6.
Embodiment three：
Technical scheme in the present embodiment is essentially identical with technical scheme in embodiment one, and difference is, this reality
Apply in example, the quantity of sealing convex edge 21 is one.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
1. a kind of sealing structure of piping lane well, the piping lane well includes being connected with cylinder at the top of main body (1), the main body (1)
The cover seat of manhole (2) of shape, it is characterised in that the sealing structure of this piping lane well includes at least one be located on cover seat of manhole (2) outer peripheral face
It is located on individual sealing convex edge (21) in a ring, cover seat of manhole (2) outer peripheral face at the position below sealing convex edge (21) and also has
Have and be arranged with seal washer (3), the sealing gasket on circumferentially distributed spacing preiection (22), cover seat of manhole (2) outer peripheral face
Clip (4) is arranged with outside circle (3), seal washer (3) lower surface can be resisted against on above-mentioned spacing preiection (22), and in clip
(4) it can make seal washer (3) upper end that elastic deformation occur upwardly after holding seal washer (3) tightly.
2. the sealing structure of piping lane well according to claim 1, it is characterised in that seal washer (3) lower surface is supported
Clip (4) lower surface can be also resisted against on spacing preiection (22) when leaning against on above-mentioned spacing preiection (22), and makes the upper of clip (4)
End face is concordant with the upper surface of seal washer (3).
3. the sealing structure of piping lane well according to claim 1, it is characterised in that internal diameter of the seal washer (3) etc.
External diameter in cover seat of manhole (2).
4. the sealing structure of piping lane well according to claim 1, it is characterised in that the spacing preiection (22) is in a ring simultaneously
Circumferentially surround cover seat of manhole (2) outer peripheral face.
5. the sealing structure of piping lane well according to claim 1, it is characterised in that the quantity of the sealing convex edge (21) is
Multiple, the sealing convex edge (21) is different along the axially staggered arrangement of cover seat of manhole (2) according to height.
6. the sealing structure of piping lane well according to claim 1, it is characterised in that the main body (1) and cover seat of manhole (2) it
Between be provided with least one pit shaft (5) and by flange connection (6) be connected.
7. the sealing structure of piping lane well according to any one of claim 1 to 6, it is characterised in that the cover seat of manhole (2)
Inside have metal framework (7) and on the basis of metal framework (7) injection molding obtain, on the metal framework (7)
The opening (71) that injected plastics material flows through is supplied with several.
8. the sealing structure of piping lane well according to claim 7, it is characterised in that the metal framework (7) includes master
Body skeleton (72) and the flange skeleton (73) positioned at main body framework (72) one end.
9. the sealing structure of piping lane well according to any one of claim 1 to 6, it is characterised in that the main body (1) and
Cover seat of manhole (2) is connected by flange connection (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367896.0A CN106996122B (en) | 2017-05-23 | 2017-05-23 | Sealing structure of pipe gallery well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710367896.0A CN106996122B (en) | 2017-05-23 | 2017-05-23 | Sealing structure of pipe gallery well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106996122A true CN106996122A (en) | 2017-08-01 |
| CN106996122B CN106996122B (en) | 2020-05-15 |
Family
ID=59435838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710367896.0A Active CN106996122B (en) | 2017-05-23 | 2017-05-23 | Sealing structure of pipe gallery well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106996122B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110105279A (en) * | 2010-03-18 | 2011-09-26 | (주)한국친환경연구원 | A manhole structure |
| CN202298655U (en) * | 2011-10-09 | 2012-07-04 | 浙江天井塑业有限公司 | Inspection well capable of being arbitrarily connected with branch pipe |
| CN202660069U (en) * | 2012-06-13 | 2013-01-09 | 湖南路路通塑业股份有限公司 | Leakage-proof component and pipeline system for buildings |
| CN104294847A (en) * | 2014-09-15 | 2015-01-21 | 嘉兴汇昌塑业有限公司 | Bell and spigot enabling pipeline and inspection well to be connected conveniently and well base with same |
| CN204533842U (en) * | 2015-04-08 | 2015-08-05 | 成都金嘉洲建材有限公司 | A kind of building layer through pipe leakage proof structure |
| CN205640030U (en) * | 2016-05-24 | 2016-10-12 | 马鞍山宏力橡胶制品有限公司 | Internal expanding type rubber seal |
-
2017
- 2017-05-23 CN CN201710367896.0A patent/CN106996122B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110105279A (en) * | 2010-03-18 | 2011-09-26 | (주)한국친환경연구원 | A manhole structure |
| CN202298655U (en) * | 2011-10-09 | 2012-07-04 | 浙江天井塑业有限公司 | Inspection well capable of being arbitrarily connected with branch pipe |
| CN202660069U (en) * | 2012-06-13 | 2013-01-09 | 湖南路路通塑业股份有限公司 | Leakage-proof component and pipeline system for buildings |
| CN104294847A (en) * | 2014-09-15 | 2015-01-21 | 嘉兴汇昌塑业有限公司 | Bell and spigot enabling pipeline and inspection well to be connected conveniently and well base with same |
| CN204533842U (en) * | 2015-04-08 | 2015-08-05 | 成都金嘉洲建材有限公司 | A kind of building layer through pipe leakage proof structure |
| CN205640030U (en) * | 2016-05-24 | 2016-10-12 | 马鞍山宏力橡胶制品有限公司 | Internal expanding type rubber seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106996122B (en) | 2020-05-15 |
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