CN105256721A - Novel stay cable end waterproof sealing structure - Google Patents
Novel stay cable end waterproof sealing structure Download PDFInfo
- Publication number
- CN105256721A CN105256721A CN201510564926.8A CN201510564926A CN105256721A CN 105256721 A CN105256721 A CN 105256721A CN 201510564926 A CN201510564926 A CN 201510564926A CN 105256721 A CN105256721 A CN 105256721A
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- seal
- connecting cylinder
- sealing structure
- waterproof sealing
- ring
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a novel stay cable end waterproof sealing structure matched and mounted with a connecting cylinder of an anchor device; the novel 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 novel 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 hermetically-sealed construction of stay cable end, be specifically related to a kind of for cable stayed bridge, suspension bridge, arch bridge and other bitter end waterproof sealing structure across footpath stayed structure.
Background technology
Drag-line is bridge and other main load-carrying member across gauge structure, is chronically exposed in wind and rain, humidity and air-polluting environment, and its durability directly affects the safety of bridge or structure, economy and reliability.The binding site of drag-line cable body and ground tackle is drag-line corrosion-resistant weak link, if this partial failure directly will affect drag-line overall durability energy, therefore the waterproof sealing of stay cable end and ground tackle and PE cable body boundary will just become a key point of drag-line sealing.
Stay cable end sealing structure adopts heat shrinking sleeve encapsulation scheme at present, namely by carrying out collapsed seal function to after heat shrinking sleeve heating.Because heat shrinking sleeve material is rubber, very easily coiling, transport and occur damaged in field-mounted process, and impaired after be difficult to repair, therefore, once damage probably directly causes the hermetically-sealed construction of bitter end to lose efficacy, thus affect the endurance quality of whole cable body.How to take a kind of more reliable bitter end hermetically-sealed construction replacement heat shrinking sleeve to be a difficult problem for bridge circle always.
Summary of the invention
The present invention is directed to the sealing that above-mentioned prior art is stay cable end and a kind of mechanical seal waterproof construction is reliably provided, solve moisture content and enter along PE cable body the problem that ground tackle causes corrosion, adopt steel work sealing simultaneously, substituting as heat shrinking sleeve structure, can overcome the difficult problem that heat shrinking sleeve is easily damaged.
The present invention's adopted technical scheme that solves the problem is: a kind of Novel bracing cable bitter end waterproof sealing structure, coordinate with the connecting cylinder of ground tackle and install, comprise elastic seal ring, seal joint and seal closure, connecting cylinder port is located at and outer end is exposed to beyond connecting cylinder in described seal joint, the inner face of described connecting cylinder inwall opposing seal pressure ring forms compressive plane, described elastic seal ring is arranged between the inner face of seal joint and described compressive plane, and under the effect of this compressive plane compressive deformation and fitting with drag-line outer wall; Described seal closure is arranged on the front end of connecting cylinder, has and breathes out furan structure, anteriorly coordinates to drag-line wall contacts and corresponding contact surface arranges sealing ring, and rear portion contacts with described seal joint or connecting cylinder and to coordinate and corresponding contact surface place arranges weather strip.
Above-mentioned elastic seal ring has circle or elliptic cross-section, is beneficial to distortion.
Preferably, described compressive plane is taper surface, and taper surface can make elastic seal ring after deformation and form larger sealing function face between drag-line cable body, obtains higher sealing effectiveness.
Preferably, the front end of described seal closure is provided with front spilled water hole, the corresponding drag-line of described front spilled water hole, the oblique extension of described front spilled water hole; The rear end of described seal closure is provided with rear spilled water hole, the corresponding connecting cylinder of described rear spilled water hole or seal joint.Front spilled water hole can make to flow down and the moisture infiltrated in seal closure is discharged in time along the drag-line cable body that exposes, avoids moisture to infiltrate internal construction and causes corrosion.Even if the moisture that the seam crossing from seal closure and ground tackle connecting cylinder or seal joint then can infiltrate by rear spilled water hole is discharged, prevent ponding.
Good setting is, described sealing ring has two or more, ensures the sealing reliability between seal closure front end and drag-line cable body.
Further, described seal closure adopts one-body molded of carbon steel, long service life, not cracky.
Preferably, described seal joint stretches on the outer wall in connecting cylinder and is provided with external screw thread, the inwall of described connecting cylinder is provided with the internal thread matched with aforementioned external screw thread, seal joint and connecting cylinder are spirally connected by internal and external threads, achieve simultaneously and the compressive deformation of elastic seal ring is controlled, guarantee the sealing of seal joint and drag-line cooperation place.
Compared with prior art, the invention has the advantages that: provide a kind of novel stay cable end waterproof sealing structure, by adopting seal closure to carry out the sealing of first road in connecting cylinder outside, relying on sealing ring and weather strip to produce precommpression distortion and reaching sealing effectiveness; Further, adopt elastic seal ring and seal joint to realize second at connecting cylinder near the inwall of port seal, make elastic seal ring compressive deformation by inside precession seal joint and fit tightly with cable body, the more reliable sealing effectiveness of acquisition.Finally achieved the sealing of stay cable end and ground tackle and PE cable body boundary by two seals, substituting as traditional heat shrinking sleeve, component stiffness is stronger, and not cracky, longer service life, hermetically-sealed construction is more durable.
Accompanying drawing explanation
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.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1, Novel bracing cable bitter end waterproof sealing structure in the present embodiment, coordinate with the connecting cylinder 11 of ground tackle and install, comprise elastic seal ring 4, seal joint 3 and seal closure 2, drag-line 1 is from front to back successively through seal closure 2, seal joint 3, elastic seal ring 4, and interior realization of connecting cylinder 11 stretching into ground tackle is fixed.
Connecting cylinder 11 port is located at and outer end is exposed to beyond connecting cylinder 11 in seal joint 3, the inner face of connecting cylinder 11 inwall opposing seal pressure ring 3 forms compressive plane a, compressive plane a is taper surface, elastic seal ring 4 is arranged between the inner face of seal joint 3 and compressive plane a, and under the effect of this compressive plane a compressive deformation and fitting with drag-line 1 outer wall.Particularly, seal joint 3 stretches on the outer wall in connecting cylinder 11 and is provided with external screw thread, the inwall of connecting cylinder 11 is provided with the internal thread matched with aforementioned external screw thread, seal joint 3 and connecting cylinder 11 are spirally connected by internal and external threads, achieve the control to elastic seal ring 4 compressive deformation by screw thread spinning in and out simultaneously, guarantee the sealing of seal joint 3 and drag-line 1 cooperation place.
Seal closure 2 is arranged on the front end of connecting cylinder 11, have and breathe out furan structure, the front portion of seal closure 2 coordinate to drag-line 1 wall contacts and on corresponding contact surface before and after be provided with two sealing rings 5, sealing ring 5 is embedded in the first groove 7 on seal closure 2 with drag-line 1 fitting face and the second groove 8.The rear portion of seal closure 2 contacts with connecting cylinder 11 and to coordinate and corresponding contact surface place arranges weather strip 6, and weather strip 6 is embedded in the 3rd groove 9 on seal closure 2 with connecting cylinder 11 fitting face.The front end of seal closure 2 is provided with front spilled water hole 10.1, the corresponding drag-line of front spilled water hole 10.1, the oblique extension of front spilled water hole 10.1; The rear end of seal closure 2 is provided with rear spilled water hole 10.2, the corresponding connecting cylinder 11 of rear spilled water hole 10.2.
In the present embodiment, seal closure 2 is one-body molded of carbon steel.The sealing ring 5 arranged in elastic seal ring 4, seal closure 2 and weather strip 6 all adopt silastic material to prepare.
The another kind of distressed structure of the present embodiment, as shown in Figure 2, main distinction part is, the rear portion of seal closure 2 contacts with seal joint 3 and to coordinate and corresponding contact surface place arranges weather strip 6, weather strip 6 is embedded in the 3rd groove 9 on seal closure 2 with seal joint 3 fitting face, the corresponding seal joint 3 of spilled water hole 10.2 of seal closure 2 rear end.
The Novel bracing cable bitter end waterproof sealing structure of said structure, by adopting seal closure to carry out the sealing of first road in connecting cylinder outside, adopt elastic seal ring and seal joint to realize second at connecting cylinder near the inwall of port to seal, finally achieve the effective sealing of stay cable end and ground tackle and PE cable body boundary, substituting as traditional heat shrinking sleeve, component stiffness is better, and longer service life, hermetically-sealed construction is more durable.
Claims (6)
1. a Novel bracing cable bitter end waterproof sealing structure, coordinate with the connecting cylinder (11) of ground tackle and install, it is characterized in that: comprise elastic seal ring (4), seal joint (3) and seal closure (2), connecting cylinder (11) port is located at and outer end is exposed to beyond connecting cylinder (11) in described seal joint (3), the inner face of described connecting cylinder (11) inwall opposing seal pressure ring (3) forms compressive plane (a), between the inner face that described elastic seal ring (4) is arranged on seal joint (3) and described compressive plane (a), and under the effect of this compressive plane (a) compressive deformation and fitting with drag-line (1) outer wall, described seal closure (2) is arranged on the front end of connecting cylinder (11), have and breathe out furan structure, anterior coordinate with drag-line (1) wall contacts and accordingly contact surface arrange sealing ring (5), rear portion contacts with described seal joint (3) or connecting cylinder (11) and to coordinate and contact surface place arranges weather strip (6) accordingly.
2. Novel bracing cable bitter end waterproof sealing structure according to claim 1, is characterized in that: described compressive plane (a) is taper surface.
3. Novel bracing cable bitter end waterproof sealing structure according to claim 1, it is characterized in that: the front end of described seal closure (2) is provided with front spilled water hole (10.1), the corresponding drag-line of described front spilled water hole (10.1) (1), the oblique extension of described front spilled water hole (10.1); The rear end of described seal closure (2) is provided with rear spilled water hole (10.2), the corresponding connecting cylinder of described rear spilled water hole (10.2) (11) or seal joint (3).
4. Novel bracing cable bitter end waterproof sealing structure according to claim 1, is characterized in that: described sealing ring (5) has two or more.
5. Novel bracing cable bitter end waterproof sealing structure according to claim 1, is characterized in that: described seal closure (2) is one-body molded of carbon steel.
6. Novel bracing cable bitter end waterproof sealing structure according to claim 1, it is characterized in that: described seal joint (3) stretches on the outer wall in connecting cylinder (11) and is provided with external screw thread, the inwall of described connecting cylinder (11) is provided with the internal thread matched with aforementioned external screw thread, 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 true CN105256721A (en) | 2016-01-20 |
| CN105256721B CN105256721B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564926.8A Active CN105256721B (en) | 2015-09-08 | 2015-09-08 | Stay cable end waterproof sealing structure |
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| Country | Link |
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| CN (1) | CN105256721B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894339A (en) * | 2017-03-29 | 2017-06-27 | 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 bucker 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894339A (en) * | 2017-03-29 | 2017-06-27 | 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 bucker waterproof sealing |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105256721B (en) | 2017-03-22 |
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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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