CN105256721B - Stay cable end waterproof sealing structure - Google Patents
Stay cable end waterproof sealing structure Download PDFInfo
- Publication number
- CN105256721B CN105256721B CN201510564926.8A CN201510564926A CN105256721B CN 105256721 B CN105256721 B CN 105256721B CN 201510564926 A CN201510564926 A CN 201510564926A CN 105256721 B CN105256721 B CN 105256721B
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- Prior art keywords
- seal
- connecting cylinder
- stay cable
- ring
- sealing structure
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- Bridges Or Land Bridges (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a stay cable end waterproof sealing structure matched and mounted with a connecting cylinder of an anchor device; the stay cable end waterproof sealing structure comprises an elastic seal ring, a seal press ring, and a seal cover; the seal press ring is arranged in a connecting cylinder port and exposed outside the connecting cylinder; an inner end face, opposite to the seal press ring, of the inner wall of the connecting cylinder is provided with an extrusion surface; the elastic seal ring is arranged between the inner end face of the seal press ring and the extrusion surface, and deformed by the extrusion surface so as to attach to the outer wall of the stay cable; the seal cover is arranged in the front end of the connecting cylinder, has a Huff structure, the front portion of the seal cover makes contact with the outer wall of the stay cable, and the corresponding contact surface is provided with the seal ring; the rear portion of the seal cover makes contact with the seal press ring or the connecting cylinder, and the corresponding contact surface is provided with a seal bar. The stay cable end, i.e., a boundary between the anchor device and a PE cable body is sealed; the stay cable end waterproof sealing structure can replace a conventional thermal contraction sleeve, is excellent in assembly rigidness, long in life, and more durable.
Description
Technical field
The present invention relates to the sealing structure of stay cable end, and in particular to it is a kind of for cable-stayed bridge, suspension bridge, arch bridge and other
The bitter end waterproof sealing structure of across footpath stayed structure.
Background technology
Drag-line is the main load-carrying member of bridge and other across footpath structures, is chronically exposed to wind and rain, moist and contaminated air
Environment in, its durability directly affects security, economy and the reliability of bridge or structure.The knot of drag-line cable body and anchorage
It is drag-line corrosion-resistant weak link to close position, if this partial failure will directly affect drag-line overall durability energy, therefore Cable
End is the key point that the waterproof sealing of anchorage and PE cable body boundarys just becomes drag-line sealing.
Stay cable end sealing structure at present adopt heat shrinking sleeve encapsulation scheme, i.e., by heating to heat shrinking sleeve after carry out receive
Contracting sealing function.Because heat shrinking sleeve material is rubber, easily there is breakage in coiling, transport and field-mounted process,
And be difficult to be repaired after being damaged, therefore, once damage that the sealing structure for directly resulting in bitter end failure is likely to, it is whole so as to affect
The endurance quality of individual cable body.A kind of more reliable bitter end sealing structure how is taken to replace heat shrinking sleeve to be always the difficulty of bridge circle
Topic.
The content of the invention
The present invention provides a kind of reliable mechanical seal waterproof construction for above-mentioned prior art for the sealing of stay cable end,
Solve the problems, such as that moisture content causes corrosion along PE cable bodies into anchorage, while sealed using steel construction, as heat shrinking sleeve structure
Substitute, the difficult problem that heat shrinking sleeve can be overcome easily damaged.
The present invention the adopted technical scheme that solves the above problems is：A kind of stay cable end waterproof sealing structure, with anchorage
Connecting cylinder coordinate and install, including elastic seal ring, seal joint and seal closure, in the seal joint, be located at connecting cylinder port
And outer end is exposed to beyond connecting cylinder, the inner face of the connecting cylinder inwall opposing seal pressure ring forms compressive plane, the elasticity
Sealing ring is arranged between the inner face of seal joint and the compressive plane, and in the presence of the compressive plane compressive deformation and with
Drag-line outer wall is fitted；The seal closure is arranged on the front end of connecting cylinder, with furan structure is breathed out, anterior to coordinate with drag-line wall contacts
And sealing ring is set on corresponding contact surface, rear portion and the seal joint or connecting cylinder be engaged and corresponding contact surface at
Sealing strip is set.
Above-mentioned elastic seal ring has circular or elliptic cross-section, is beneficial to deformation.
Preferably, the compressive plane be taper surface, taper surface can make elastic seal ring after deformation with drag-line cable body it
Between form larger sealing function face, obtain higher sealing effectiveness.
Preferably, the front end of the seal closure is provided with front spilled water hole, the front spilled water hole correspondence drag-line, the front sluicing
Hole extends obliquely out；The rear end of the seal closure is provided with rear spilled water hole, the rear spilled water hole correspondence connecting cylinder or seal joint.Before
Spilled water hole can be such that the moisture for flowing down and penetrating in seal closure along the drag-line cable body for exposing discharges in time, it is to avoid moisture penetrates into internal
Structure causes corrosion.The moisture that seam crossing from seal closure and anchorage connecting cylinder or seal joint can then be penetrated into by spilled water hole afterwards
Even if discharging, ponding is prevented.
It is that the sealing ring has two or more preferably to arrange, it is ensured that the sealing between seal closure front end and drag-line cable body
Reliability.
Further, the seal closure is integrally formed part using carbon steel, long service life, not cracky.
Preferably, the seal joint is stretched into and is provided with external screw thread on the outer wall in connecting cylinder, the inwall of the connecting cylinder
On be provided with the internal thread matched with aforementioned external screw thread, seal joint and connecting cylinder are spirally connected by internal and external threads, at the same realize
The compressive deformation of elastic seal ring is controlled, it is ensured that the sealing at seal joint and drag-line cooperation.
Compared with prior art, it is an advantage of the current invention that：There is provided a kind of stay cable end waterproof sealing structure, pass through
First road sealing is carried out using seal closure outside connecting cylinder, produces precompressed compression deformation to reach sealing by sealing ring and sealing strip
Effect；Further, using elastic seal ring and seal joint, the inwall at connecting cylinder near port realizes that second is sealed, leads to
Crossing inside precession seal joint is made elastic seal ring compressive deformation and is brought into close contact with cable body, obtains relatively reliable sealing effect
Really.The sealing of stay cable end i.e. anchorage and PE cable body boundarys is realized finally by two seals, as traditional heat shrinking sleeve
Replacement, component is more rigid, not cracky, and service life is longer, and sealing structure is more durable.
Description of the drawings
Fig. 1 is the structural representation of stay cable end waterproof sealing structure in the embodiment of the present invention；
Fig. 2 is the structural representation of another stay cable end waterproof sealing structure in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, the stay cable end waterproof sealing structure in the present embodiment, is coordinated with the connecting cylinder 11 of anchorage and is installed,
Including elastic seal ring 4, seal joint 3 and seal closure 2, drag-line 1 sequentially passes through seal closure 2, seal joint 3, bullet from front to back
Property sealing ring 4, stretch into and fix.
11 port of connecting cylinder is located in seal joint 3 and outer end is exposed to beyond connecting cylinder 11,11 inwall of connecting cylinder is relatively close
The inner face of envelope pressure ring 3 forms compressive plane a, and compressive plane a is taper surface, and elastic seal ring 4 is arranged on the inner of seal joint 3
Between face and compressive plane a, and in the presence of the compressive plane a compressive deformation and fit with 1 outer wall of drag-line.Specifically, sealing pressure
External screw thread is provided with the outer wall that ring 3 stretches in connecting cylinder 11, is provided with the inwall of connecting cylinder 11 and aforementioned external screw thread phase
The internal thread matched somebody with somebody, seal joint 3 and connecting cylinder 11 are spirally connected by internal and external threads, while be threaded into back-out realizing to bullet
Property 4 compressive deformation of sealing ring control, it is ensured that the sealing at seal joint 3 and 1 cooperation of drag-line.
Seal closure 2 is arranged on the front end of connecting cylinder 11, with Kazakhstan furan structure, front portion and 1 wall contacts of drag-line of seal closure 2
Two sealing rings 5 are provided with before and after in cooperation and corresponding contact surface, sealing ring 5 is embedded on seal closure 2 with 1 mating surface of drag-line
The first groove 7 and the second groove 8 in.The rear portion of seal closure 2 and connecting cylinder 11 be engaged and corresponding contact surface at arrange
Sealing strip 6, sealing strip 6 are embedded in the 3rd groove 9 on seal closure 2 with 11 mating surface of connecting cylinder.The front end of seal closure 2 is arranged
There is front spilled water hole 10.1,10.1 corresponding drag-line of front spilled water hole, front spilled water hole 10.1 are extended obliquely out；The rear end of seal closure 2 is provided with
Spilled water hole 10.2 afterwards, the correspondence connecting cylinder 11 of rear spilled water hole 10.2.
In the present embodiment, seal closure 2 is integrally formed part for carbon steel.The sealing arranged in elastic seal ring 4, seal closure 2
Circle 5 and sealing strip 6 are prepared using silastic material.
Another kind of distressed structure of the present embodiment, as shown in Fig. 2 in place of the main distinction be, the rear portion of seal closure 2 and sealing
Pressure ring 3 be engaged and corresponding contact surface at sealing strip 6 is set, sealing strip 6 is embedded and is coordinated with seal joint 3 in seal closure 2
In the 3rd groove 9 on face, the correspondence seal joint 3 of spilled water hole 10.2 of 2 rear end of seal closure.
The stay cable end waterproof sealing structure of said structure, it is close by carrying out first road using seal closure outside connecting cylinder
Using elastic seal ring and seal joint, envelope, realizes that second is sealed in inwall of the connecting cylinder near port, finally realizes drawing
Rustling sound end is effective sealing of anchorage and PE cable body boundarys, and used as the replacement of traditional heat shrinking sleeve, component rigidity more preferably, makes
Longer with the life-span, sealing structure is more durable.
Claims (6)
1. a kind of stay cable end waterproof sealing structure, is coordinated with the connecting cylinder (11) of anchorage and is installed, it is characterised in that：Including elasticity
It is located at connecting cylinder (11) port and outer end to reveal in sealing ring (4), seal joint (3) and seal closure (2), seal joint (3)
Beyond connecting cylinder (11), the inner face of connecting cylinder (11) inwall opposing seal pressure ring (3) forms compressive plane (a), institute
State elastic seal ring (4) to be arranged between inner face and the compressive plane (a) of seal joint (3), and in the compressive plane (a)
Act on lower compressive deformation and fit with drag-line (1) outer wall；Seal closure (2) are arranged on the front end of connecting cylinder (11), with Kazakhstan
Furan structure, it is anterior that with the cooperation of drag-line (1) wall contacts and on corresponding contact surface, sealing ring (5), rear portion and the sealing are set
Pressure ring (3) or connecting cylinder (11) be engaged and corresponding contact surface at sealing strip (6) is set.
2. stay cable end waterproof sealing structure according to claim 1, it is characterised in that：The compressive plane (a) is taper
Face.
3. stay cable end waterproof sealing structure according to claim 1, it is characterised in that：The front end of seal closure (2)
Front spilled water hole (10.1) is provided with, described front spilled water hole (10.1) correspond to drag-line (1), and front spilled water hole (10.1) are oblique to prolong
Stretch；The rear end of seal closure (2) is provided with rear spilled water hole (10.2), described rear spilled water hole (10.2) correspondence connecting cylinder (11) or
Seal joint (3).
4. stay cable end waterproof sealing structure according to claim 1, it is characterised in that：Sealing ring (5) have two
Or more.
5. stay cable end waterproof sealing structure according to claim 1, it is characterised in that：Described seal closure (2) are carbon
Steel is integrally formed part.
6. stay cable end waterproof sealing structure according to claim 1, it is characterised in that：Seal joint (3) are stretched into
External screw thread is provided with outer wall in connecting cylinder (11), is provided with and aforementioned external screw thread phase on the inwall of connecting cylinder (11)
The internal thread matched somebody with somebody, seal joint (3) and connecting cylinder (11) are spirally connected and realize the compressive deformation of elastic seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564926.8A CN105256721B (en) | 2015-09-08 | 2015-09-08 | Stay cable end waterproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564926.8A CN105256721B (en) | 2015-09-08 | 2015-09-08 | Stay cable end waterproof sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105256721A CN105256721A (en) | 2016-01-20 |
| CN105256721B true CN105256721B (en) | 2017-03-22 |
Family
ID=55096637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564926.8A Active CN105256721B (en) | 2015-09-08 | 2015-09-08 | Stay cable end waterproof sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105256721B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894339B (en) * | 2017-03-29 | 2019-07-23 | 柳州欧维姆机械股份有限公司 | Bridge cable flexible water device and its method for realizing cable body waterproof cover waterproof sealing |
| CN111335164A (en) * | 2020-03-14 | 2020-06-26 | 江苏法尔胜缆索有限公司 | Durable sling anchoring structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167713A (en) * | 2000-11-29 | 2002-06-11 | Anderson Technology Kk | Socket for protection pipe of bridge strand cable |
| CN201221047Y (en) * | 2008-06-20 | 2009-04-15 | 上海浦江缆索股份有限公司 | Rainproof case sealing structure for stayed cable |
| CN202610709U (en) * | 2012-04-18 | 2012-12-19 | 柳州欧维姆机械股份有限公司 | Waterproof sealing cover |
| CN203782569U (en) * | 2014-01-28 | 2014-08-20 | 江苏法尔胜缆索有限公司 | Stay cable and beam end waterproof cap |
| CN204919337U (en) * | 2015-09-08 | 2015-12-30 | 江苏法尔胜缆索有限公司 | Novel cable suo duan waterproof sealing structure |
-
2015
- 2015-09-08 CN CN201510564926.8A patent/CN105256721B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167713A (en) * | 2000-11-29 | 2002-06-11 | Anderson Technology Kk | Socket for protection pipe of bridge strand cable |
| CN201221047Y (en) * | 2008-06-20 | 2009-04-15 | 上海浦江缆索股份有限公司 | Rainproof case sealing structure for stayed cable |
| CN202610709U (en) * | 2012-04-18 | 2012-12-19 | 柳州欧维姆机械股份有限公司 | Waterproof sealing cover |
| CN203782569U (en) * | 2014-01-28 | 2014-08-20 | 江苏法尔胜缆索有限公司 | Stay cable and beam end waterproof cap |
| CN204919337U (en) * | 2015-09-08 | 2015-12-30 | 江苏法尔胜缆索有限公司 | Novel cable suo duan waterproof sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105256721A (en) | 2016-01-20 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhou Zhubing Inventor after: Zhao Jun Inventor after: Zheng Qinggang Inventor after: Ning Shiwei Inventor after: Xue Huajuan Inventor after: Wu Qiong Inventor after: Zhu Xiaoxiong Inventor after: Huang Kebin Inventor before: Zhou Zhubing Inventor before: Zhao Jun Inventor before: Ning Shiwei Inventor before: Xue Huajuan Inventor before: Wu Qiong Inventor before: Zhu Xiaoxiong Inventor before: Huang Kebin |
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