CN205640030U - Internal expanding type rubber seal - Google Patents
Internal expanding type rubber seal Download PDFInfo
- Publication number
- CN205640030U CN205640030U CN201620514992.4U CN201620514992U CN205640030U CN 205640030 U CN205640030 U CN 205640030U CN 201620514992 U CN201620514992 U CN 201620514992U CN 205640030 U CN205640030 U CN 205640030U
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- rubber seal
- internal expanding
- internal
- expansion type
- steel ring
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Abstract
The utility model discloses an internal expanding type rubber seal belongs to large pipe's secondary sealing technique field. The utility model discloses an internal expanding type rubber seal includes rubber seal zone circle and internal expanding steel ring, the rubber seal zone circle is applied to the pipeline socket and is inserted the clearance department that forms behind the pipeline tube end, rubber seal zone circle inner wall is hugged closely to the internal expanding steel ring, forms the internal expanding type structure. The utility model discloses a step that -> internal expanding -> supported, the completion sealed work a little of leaking are laid through the point location -> that leaks to internal expanding type rubber seal's application. The utility model discloses a leaking stoppage is tight, and easy operation, and purpose with low costs moreover, through the girth in adjustment rubber seal area, can realize the restoration of the sealed leaking stoppage of internal expanding of multiple specification pipeline.
Description
Technical field
This utility model relates to the secondary seal technical field of large-scale pipeline, particularly relates to a kind of internal expansion type rubber seal.
Background technology
In past a lot of municipal pipeline engineering, due to cost and other reasons, at the prestressed concrete pipe buried underground or steel cylinder
Employing bad cushion rubber or common material cushion rubber in concrete water transfer pipeline, after using twenty or thirty year, the interface of pipeline will be sent out
Raw leakage, for leak stopping, past traditional construction method excavates pipeline, replacing inefficacy sealing ring, such construction method exactly
Workload is big, long in time limit, investment is big.
Through retrieval, China Patent Publication No.: CN 202469007 U, the patent documentation of publication date: 2012.10.03 discloses one
Kind of internal expansion type two-way wide arc gap sealing ring include pressure-bearing circular arc block, locking pin and sealing ring body, described sealing ring body be
Both ends of the surface are symmetrical arranged the circle ring column of boss, and internal circular surfaces is symmetrical arranged 2 annular grooves, in the axial direction along inner periphery
It is uniformly distributed the semicircular guiding gutter of several through both ends of the surface；Some pressure-bearing circular arc blocks to sector are close to sealing ring body pair
Claim to be arranged on two boss, and the most evenly distributed, there is gap between described pressure-bearing circular arc block；Pressure-bearing circular arc block does not surpasses
Go out the outer circumference surface of sealing ring body, described pressure-bearing circular arc block and sealing ring body locking pin and connect fixing.This utility model
Simple in construction is easy to implement, and solves the problem that sealed mold physical dimension is huge, has saved device fabrication expense；Solve simultaneously
The sealing ring lip one side tear that internal expansion type sealing ring of having determined causes because of monolateral unbalance stress, the problem of severe life time reduction, carry
The high service life of sealing ring.This internal expansion type two-way wide arc gap sealing ring is applied to pipeline socket and inserts what pipeline birdsmouth was formed
During gap, owing to the size in gap is not confirm factor, need first to measure the sealing ring of gap size reselection dimension, logical
Poor by property.
Utility model content
1. utility model to solve the technical problem that
Big for pipe plugging workload in municipal in prior art, long in time limit, invest the uncurrent problem of sealing ring big, existing,
This utility model provides a kind of internal expansion type rubber seal.It is tight that it can realize leak stopping, simple to operate, and the mesh of low cost
, and, by adjusting the girth of rubber seal astragal, it is possible to achieve the reparation of the internal expanding sealing and plugging of plurality of specifications pipeline.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that this utility model provides is:
A kind of internal expansion type rubber seal, including rubber seal zone circle and internal expanding steel ring, described rubber seal zone circle is applied to pipeline
Hold, pipe joint reparation after the former sealing ring of socket lost efficacy seals, and is i.e. applied to pipeline socket and inserts and formed after pipeline birdsmouth
Gap location, described internal expanding steel ring is close to rubber seal zone circle inwall, is formed internal expansion type structure.
Preferably technical scheme, internal expanding steel ring is 2, and the axial middle part of rubber seal zone circle is inserted pipeline near pipeline socket and held
The gap formed after interface, the inwall at two and 2 internal expanding steel rings form internal expansion type structure, and form twice in both sides, gap close
Envelope band.
Preferably technical scheme, the one side that rubber seal zone circle and internal expanding steel ring are close to arranges groove, and internal expanding steel ring embeds in groove.
Preferably technical scheme, the width of internal expanding steel ring is consistent with the width of groove.
Preferably technical scheme, on rubber seal zone circle, and the corresponding outer surface of groove is provided with sealing line.
Preferably technical scheme, described sealing line has 3～7.
Preferably technical scheme, described internal expanding steel ring two ends are provided with jaws, snap in shell fragment between jaws.
Preferably technical scheme, the material of rubber seal zone circle is alkadiene rubber, preferably EPDM rubber.
The application of a kind of internal expansion type rubber seal, the steps include:
A, leakage point position: determine leakage point at the pipeline socket of aqueduct and pipeline birdsmouth, empty pipeline, at pipeline
Upper spaced openings, enters interior maintenance；；
B, laying: rubber seal tape circuit covering is lived the pipeline socket at leakage point and pipeline birdsmouth gap:
C, internal expanding: prop up rubber seal zone circle with internal expanding steel ring, and expand internal expanding steel ring with dilator；
D, support: prop up internal expanding steel ring at internal expanding steel ring inwall with support bar, complete the seal operation of leakage point, uses outsourcing
Perforate blocked by hoop.
Preferably application technology scheme, in step D, snaps in the jaws that internal expanding steel ring two ends are arranged with shell fragment, props up internal expanding steel
Circle.
3. beneficial effect
The technical scheme using this utility model to provide, compared with prior art, has the advantages that
(1) a kind of internal expansion type rubber seal of the present utility model, by internal expanding steel ring and the rubber seal zone circle of internal expansion type structure,
Seal up the gap formed after pipeline socket inserts pipeline birdsmouth, complete blocking up of the leak source at pipeline socket insertion pipeline birdsmouth
Leakage, simple in construction, production cost is low, and plugging effect is good, and workload is little, and the duration is short, meets and solves Pipeline Leakage Point in a short time
Leak stopping, is down to the shortest requirement by the time affecting the people's livelihood；By adjusting the girth of rubber seal astragal, it is possible to achieve multiple rule
The reparation of the internal expanding sealing and plugging of lattice pipeline；
(2) a kind of internal expansion type rubber seal of the present utility model, two seals band, improve sealing effectiveness further, and rubber is close
Envelope zone circle has certain elasticity, overcomes pipeline and expands with heat and contract with cold the impact on sealing effectiveness；
(3) a kind of internal expansion type rubber seal of the present utility model, groove, as the location and installation groove of internal expanding steel ring, facilitates internal expanding
The installation location of steel ring；
(4) a kind of internal expansion type rubber seal of the present utility model, the width of internal expanding steel ring is consistent with the width of groove, it is possible to
The most possible internal expanding steel ring that reduces moves left and right the impact on sealing effectiveness；
(5) a kind of internal expansion type rubber seal of the present utility model, the setting of sealing line, be equivalent to multiple-sealed circle, reduce pipe
The impact on sealing effectiveness of the roughening of road inwall；
(6) a kind of internal expansion type rubber seal of the present utility model, sealing line has 3～7, according in gap size and pipeline
Wall degree of roughness selects accordingly, improves the versatility of rubber seal zone circle；
(7) application of a kind of internal expansion type rubber seal of the present utility model, internal expanding steel ring two ends are provided with jaws, between jaws
Snapping in shell fragment, while keeping the inner expanding force of internal expanding steel ring, when solution strut supports again, strut is easily damaged to be affected with strut
The problem of pipeline water flow flow velocity；
(8) application of a kind of internal expansion type rubber seal of the present utility model, alkadiene rubber, especially EPDM rubber,
Ageing resistace is excellent, to adapt to complicated condition of water quality and environment in pipeline；
(9) application of a kind of internal expansion type rubber seal of the present utility model, simple to operate, and technology requires low, and man-hour is short.
Accompanying drawing explanation
The structural representation of Fig. 1 device of the present utility model；
Structural representation after the A portion amplification of Fig. 2 this utility model Fig. 1
The side view of Fig. 3 internal expanding of the present utility model steel ring
Structural representation after the B portion amplification of Fig. 4 this utility model Fig. 3
Label declaration in schematic diagram: 1, rubber seal zone circle；2, internal expanding steel ring；3, sealing ring；4, pipeline socket；5、
Pipeline birdsmouth；11, sealing line；12, groove；13, slope；21, jaws；22, shell fragment.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with accompanying drawing, this utility model is described in detail.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of internal expansion type rubber seal of the present embodiment, including rubber seal zone circle 1 and internal expanding steel ring
2, rubber seal zone circle 1 is applied to the gap location formed after pipeline socket 4 inserts pipeline birdsmouth 5, and its width is 10cm,
A diameter of 110cm, pipeline socket 4 internal diameter is 120cm；The a diameter of 120cm of internal expanding steel ring 2, is close to rubber seal zone circle 1
Inwall, forms internal expansion type structure.
Certain city municipal administration personnel find all to exist at all bell and spigots in the prestressed concrete pipe road of the DN1200 of nearly 3 kilometers to leak,
Through analyzing, owing to this pipeline is to be laid before 10 years, as it is shown in figure 1, sealing is by being provided with in the outer rim of pipeline socket 4
One circle sealing ring 3 completes, and then pipeline socket 4 inserts pipeline birdsmouth 5 and completes pipeline connection, owing to employing at that time
Bad cushion rubber, loss over time, sealing ring 3 is the most aging, causes seal failure to occur leaking, and municipal administration personnel use
The internal expansion type rubber seal of the present embodiment, processing step is:
A, leakage point position: determine leakage point at the pipeline socket 4 of aqueduct and pipeline birdsmouth 5, empty pipeline,
Spaced openings on pipeline, enters interior maintenance；
B, laying: rubber seal zone circle 1 is covered the gap at leakage point:
C, internal expanding: prop up rubber seal zone circle 1 with internal expanding steel ring 2, and with dilator expansion internal expanding steel ring 2 by rubber seal tape
Enclose 1 internal expanding to the pipeline gap at leakage point, and this gap is completely covered；
D, support: prop up internal expanding steel ring 2 with support bar at internal expanding steel ring 2 inwall, complete the seal operation of leakage point.Will be all
After interface leak source is repaired, outer shroud ring is used to block perforate.Through bulge test, rubber seal zone circle 1 is just applied with by pressure
Pressure, good sealing effect.
Embodiment 2
A kind of internal expansion type rubber seal of the present embodiment, basic structure, with embodiment 1, thes improvement is that: internal expanding steel ring 2
It is 2, each 50mm of width；The width of rubber seal zone circle 1 is 500mm, and the axial middle part of rubber seal zone circle 1 is close
Pipeline socket 4 inserts the gap formed after pipeline birdsmouth 5, and the inwall at two and 2 internal expanding steel rings 2 form internal expansion type structure,
And two seals band is formed in both sides, gap.The one side that rubber seal zone circle 1 and internal expanding steel ring 2 are close to arranges groove 12, internal expanding
Steel ring 2 embeds in groove 12.The width of internal expanding steel ring 2 is consistent with the width of groove 12, it is possible to the minimizing internal expanding of maximum possible
Steel ring moves left and right the impact on sealing effectiveness.As shown in Figures 3 and 4, internal expanding steel ring 2 two ends are provided with jaws 21, jaws 21
Between snap in shell fragment 22.On rubber seal zone circle 1, the corresponding outer surface of groove 12 is provided with 3 road sealing lines 11, sealing line
The setting of 11, is equivalent to multiple-sealed circle, the impact on sealing effectiveness of the roughening of minimizing inner-walls of duct.
The application of a kind of internal expansion type rubber seal of the present embodiment, the steps include:
A, leakage point position: determine leakage point at the pipeline socket 4 of aqueduct and pipeline birdsmouth 5, empty pipeline, behaviour
Workmanship, spaced openings on pipeline, enter interior maintenance；
B, laying: between middle part axial for rubber seal zone circle 1 is formed after pipeline socket 4 inserts pipeline birdsmouth 5
Gap；
C, internal expanding: 2 internal expanding steel rings 2 by embedding in the groove 12 of rubber seal zone circle 1 two inwall, prop up rubber respectively
Glue seals zone circle 1, and groove 12 facilitates the installation of internal expanding steel ring 2 to position；And expand internal expanding steel ring 2 with dilator, in gap two
Side forms two seals band；The elastic effect that rubber seal zone circle has overcomes pipeline and expands with heat and contract with cold the impact on sealing effectiveness；
D, support: snap in the jaws 21 that internal expanding steel ring 2 two ends are arranged with shell fragment 22, prop up internal expanding steel ring 2, complete to leak
The seal operation of point, uses outer shroud ring to block perforate.While shell fragment 22 keeps the inner expanding force of internal expanding steel ring 2, solve again use
When strut supports, strut is easily damaged the problem affecting pipeline water flow flow velocity with strut.
Embodiment 3
A kind of internal expansion type rubber seal of the present embodiment, basic structure, with embodiment 2, thes improvement is that: rubber seal tape
The material of circle 1 is alkadiene rubber, and width is 400mm, the preferred EPDM rubber of material；Internal expanding steel ring 2 width is 50mm；
Sealing line 11 has 7, is equivalent to 7 road sealing rings, the impact on sealing effectiveness of the roughening of minimizing inner-walls of duct.
The application of a kind of internal expansion type rubber seal of the present embodiment, its step is with embodiment 2.
Embodiment 4
A kind of internal expansion type rubber seal of the present embodiment, basic structure, with embodiment 3, thes improvement is that: rubber seal tape
The end face of circle 1 is that slope 13 is arranged, and inclined-plane is outside, reduces the water flow impact to rubber seal zone circle 1 end face, improves rubber
Glue seals the service life of zone circle 1.
The application of a kind of internal expansion type rubber seal of the present embodiment, its step is with embodiment 2.
Example described in the utility model is only to be described preferred implementation of the present utility model, not to this utility model
Spirit and scope are defined, and on the premise of without departing from design philosophy of the present invention, this area engineers and technicians are to the present invention's
Various deformation that technical scheme is made and improvement, all should fall into protection domain of the present utility model, and this utility model is claimed
Oneself warp of technology contents is whole to be recorded in detail in the claims.
Claims (9)
1. an internal expansion type rubber seal, including rubber seal zone circle (1) and internal expanding steel ring (2), it is characterised in that: institute
State rubber seal zone circle (1) and be applied to the gap location that pipeline socket (4) insertion pipeline birdsmouth (5) is formed afterwards, described internal expanding
Rubber seal zone circle (1) inwall is close to by steel ring (2), forms internal expansion type structure.
A kind of internal expansion type rubber seal the most according to claim 1, it is characterised in that: described internal expanding steel ring (2) is
2, the gap that pipeline birdsmouth (5) is formed afterwards is inserted, near pipeline socket (4), in the axial middle part of rubber seal zone circle (1),
The inwall at two and 2 internal expanding steel rings (2) form internal expansion type structure, and form two seals band in both sides, gap.
A kind of internal expansion type rubber seal the most according to claim 1 and 2, it is characterised in that: described rubber seal zone circle
(1) and the one side be close to of internal expanding steel ring (2) arranges groove (12), internal expanding steel ring (2) embeds in groove (12).
A kind of internal expansion type rubber seal the most according to claim 3, it is characterised in that: described internal expanding steel ring (2)
Width is consistent with the width of groove (12).
A kind of internal expansion type rubber seal the most according to claim 3, it is characterised in that: described rubber seal zone circle (1)
On, and the corresponding outer surface of groove (12) is provided with sealing line (11).
A kind of internal expansion type rubber seal the most according to claim 5, it is characterised in that: described sealing line (11) have 3～
Article 7,.
A kind of internal expansion type rubber seal the most according to claim 5, it is characterised in that: described internal expanding steel ring (2) two
End is provided with jaws (21), snaps in shell fragment (22) between jaws (21).
A kind of internal expansion type rubber seal the most according to claim 7, it is characterised in that: described rubber seal zone circle (1)
Material be alkadiene rubber.
A kind of internal expansion type rubber seal the most according to claim 8, it is characterised in that: described rubber seal zone circle (1)
Material be EPDM rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514992.4U CN205640030U (en) | 2016-05-24 | 2016-05-24 | Internal expanding type rubber seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620514992.4U CN205640030U (en) | 2016-05-24 | 2016-05-24 | Internal expanding type rubber seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205640030U true CN205640030U (en) | 2016-10-12 |
Family
ID=57051828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620514992.4U Active CN205640030U (en) | 2016-05-24 | 2016-05-24 | Internal expanding type rubber seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205640030U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822867A (en) * | 2016-05-24 | 2016-08-03 | 马鞍山宏力橡胶制品有限公司 | Internal expansion type rubber sealing ring and application thereof |
| CN106996122A (en) * | 2017-05-23 | 2017-08-01 | 浙江天井塑业有限公司 | A kind of sealing structure of piping lane well |
| CN107740905A (en) * | 2017-11-03 | 2018-02-27 | 中国十九冶集团有限公司 | Device for plugging and blocking method for aqueduct |
-
2016
- 2016-05-24 CN CN201620514992.4U patent/CN205640030U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822867A (en) * | 2016-05-24 | 2016-08-03 | 马鞍山宏力橡胶制品有限公司 | Internal expansion type rubber sealing ring and application thereof |
| CN106996122A (en) * | 2017-05-23 | 2017-08-01 | 浙江天井塑业有限公司 | A kind of sealing structure of piping lane well |
| CN107740905A (en) * | 2017-11-03 | 2018-02-27 | 中国十九冶集团有限公司 | Device for plugging and blocking method for aqueduct |
| CN107740905B (en) * | 2017-11-03 | 2019-12-24 | 中国十九冶集团有限公司 | Leakage stopping device and method for water pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |