CN110847037A - Rainproof sealing device - Google Patents
Rainproof sealing device Download PDFInfo
- Publication number
- CN110847037A CN110847037A CN201911174058.7A CN201911174058A CN110847037A CN 110847037 A CN110847037 A CN 110847037A CN 201911174058 A CN201911174058 A CN 201911174058A CN 110847037 A CN110847037 A CN 110847037A
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- Prior art keywords
- rain
- cover
- proof cover
- boss
- piecemeal
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a rain-proof sealing device, comprising: first rain-proof cover piecemeal, the rain-proof cover piecemeal of second, elastic washer, end cover screw and elastic sealing pad, first rain-proof cover piecemeal with the rain-proof cover piecemeal butt joint of second forms rain-proof cover, be provided with the boss on the butt joint face of first rain-proof cover piecemeal, be provided with on the butt joint face of the rain-proof cover piecemeal of second with the corresponding seal groove of boss, elastic sealing pad sets up the seal groove with between the boss, rain-proof cover one end is provided with the packing ring hole, elastic washer buries the packing ring is downthehole, end cover screw connects elastic washer with rain-proof cover. According to the rainproof sealing device provided by the invention, the center hole is sealed through the elastic gasket which is deformed under pressure, and the butt joint surface of the rainproof cover is sealed through the elastic sealing gasket which is deformed under pressure, so that rainwater is prevented from permeating into the rainproof cover, and the service life of the inhaul cable structure is prolonged.
Description
Technical Field
The invention relates to the technical field of bridge inhaul cable sealing, in particular to a rainproof sealing device.
Background
The stay cable is a main bearing component of the stay cable bridge, and once the stay cable bridge fails, the bridge cannot be used. At present, the main defect of the stay cable is corrosion of an anchorage device part, and the corrosion of the anchorage device can cause the failure of the stay cable and harm the safe use of the bridge. In order to prevent the anchor part from being corroded, the anchor part of the stay cable is usually sealed by a rain cover and a protective cover. The existing inhaul cable rainproof cover is mostly in a two-half combined form, a splicing seam between the two inhaul cable rainproof covers is sealed by sealant, and the inhaul cable rainproof covers and the inhaul cable are sealed through a sealing ring.
In actual use, the sealing ring between the stay cable rain cover and the stay cable cannot be tightly attached, and rainwater permeates along the gap between the sealing ring and the stay cable; the sealant has poor displacement resistance and cannot bear the width change of the butt joint; the sealing ring and the sealant have poor aging resistance, and after the sealing ring and the sealant are used for a period of time, the sealing ring and the sealant are aged due to factors such as temperature difference change, solarization and the like, so that sealing failure is easily caused. The sealing effect of the rain cover is poor, the durability is difficult to guarantee, rainwater permeates into the interior of the rain cover along the butt joint seam and the inhaul cable, so that the anchorage device is corroded, and the safe use of the bridge is damaged.
Disclosure of Invention
The invention aims to provide a rainproof sealing device which is used for waterproof sealing of an anchor part of a stay cable, preventing rainwater from permeating into the anchor part along a butt joint of a rainproof cover and prolonging the service life of a stay cable structure.
In order to achieve the above object, the present invention provides a rain sealing apparatus comprising: first rain-proof cover piecemeal, the rain-proof cover piecemeal of second, elastic washer, end cover screw and elastic sealing pad, first rain-proof cover piecemeal with the rain-proof cover that the piecemeal butt joint of second formed a centre bore, follow on the butt joint face of first rain-proof cover piecemeal the centre bore radially is provided with the boss, be provided with on the butt joint face of the rain-proof cover piecemeal of second with the corresponding seal groove of boss, elastic sealing pad sets up the seal groove with between the boss, rain-proof cover one end is provided with the washer hole, elastic washer buries the washer is downthehole, end cover screw connection elastic washer with rain-proof cover makes the pressurized deformation the internal diameter of elastic washer is less than the centre bore diameter.
Optionally, the cross section of the sealing groove is U-shaped, and the side wall of the sealing groove is provided with protrusions close to each other.
Optionally, the elastic sealing gasket is arranged on one side, away from the boss, of the sealing groove, and when the boss extrudes the elastic sealing gasket, the elastic sealing gasket can be wrapped on the boss in a deformation mode.
Optionally, the cross section of the boss is semicircular or trapezoidal.
Optionally, the rain-proof sealing device still includes connecting screw, be provided with the first connecting hole that passes the butt joint face on the rain-proof cover piecemeal of first rain-proof, be provided with the second connecting hole that passes the butt joint face on the rain-proof cover piecemeal of second, connecting screw passes through first connecting hole with the second connecting hole is connected first rain-proof cover piecemeal with rain-proof cover piecemeal of second.
Optionally, a side cover is arranged on one side of the rain cover, which is far away from the central hole, and the side cover covers the butt seam and is connected with the rain cover through a side cover screw arranged on the side cover.
Optionally, a rubber pad is arranged between the side cover and the rain cover.
Optionally, the rain-proof sealing device further comprises an end cover, the end cover is provided with the elastic gasket far away from one end of the rain-proof cover, the end cover is in screwed connection with the rain-proof cover, and the inner diameter of the elastic gasket which deforms under pressure is smaller than the diameter of the central hole.
Optionally, one side of the end cover, which is close to the elastic washer, is provided with an extrusion tooth, and the extrusion tooth is wedged between the elastic washer and the washer hole, so that the inner diameter of the elastic washer, which is deformed by pressure, is smaller than the diameter of the central hole.
Optionally, the end cover is formed by butt joint of two semicircular rings, and the butt joint face of the rain cover is perpendicular to the butt joint face of the end cover.
The invention provides a rain-proof sealing device, comprising: first rain-proof cover piecemeal, the rain-proof cover piecemeal of second, elastic washer, end cover screw and elastic sealing pad, first rain-proof cover piecemeal with the rain-proof cover that the piecemeal butt joint of second formed a centre bore, follow on the butt joint face of first rain-proof cover piecemeal the centre bore radially is provided with the boss, be provided with on the butt joint face of the rain-proof cover piecemeal of second with the corresponding seal groove of boss, elastic sealing pad sets up the seal groove with between the boss, rain-proof cover one end is provided with the washer hole, elastic washer buries the washer is downthehole, end cover screw connection elastic washer with rain-proof cover makes the pressurized deformation the internal diameter of elastic washer is less than the centre bore diameter. According to the rainproof sealing device provided by the invention, the center hole is sealed through the elastic gasket which is deformed under pressure, and the butt joint surface of the rainproof cover is sealed through the elastic sealing gasket which is deformed under pressure, so that rainwater is prevented from permeating into the rainproof cover, and the service life of the inhaul cable structure is prolonged.
Drawings
FIG. 1 is a cross-sectional view of a rain seal provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a rain seal according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a rain seal A-A according to an embodiment of the present invention;
FIG. 4 is a schematic view of a sealing slot and a trapezoidal boss of an embodiment of the present invention before they are butted together;
fig. 5 is a schematic diagram of a sealing groove and a trapezoidal boss abutting against each other according to an embodiment of the present invention.
Wherein: 1-rain cover, 101-gasket hole, 102-side cover hole, 11-first rain cover block, 111-semicircular boss, 112-first connecting hole, 113-trapezoidal boss, 12-second rain cover block, 121-sealing groove, 122-second connecting hole, 2-elastic gasket, 3-end cover screw, 4-end cover, 401-extrusion tooth, 5-elastic sealing gasket, 6-side cover, 7-rubber pad, 8-inhaul cable and 9-inhaul cable guide pipe.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. Advantages and features of the present invention will become apparent from the following description and claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The invention provides a rainproof sealing device which can be used for sealing a connecting node including an anchorage device part of an inhaul cable. Fig. 1 is a cross-sectional view of a rain seal provided in accordance with an embodiment of the present invention, fig. 2 is a schematic view of a rain seal provided in accordance with an embodiment of the present invention, fig. 3 is a schematic view of a cross-section a-a of a rain seal provided in accordance with an embodiment of the present invention, and referring to fig. 1-3, the rain seal includes: a first rain cover block 11, a second rain cover block 12, an elastic gasket 2, an end cover screw 3 and an elastic sealing gasket 5, the first rain cover sub-block 11 and the second rain cover sub-block 12 are butted to form a rain cover 1 comprising a central hole, the first rain-proof cover sub-block 11 and the second rain-proof cover sub-block 12 are symmetrical with respect to the butt joint plane, a boss is radially arranged on the butt joint surface of the first rain cover block 11 along the central hole, a sealing groove 121 corresponding to the boss is arranged on the butt joint surface of the second rain cover block 12, the elastic sealing gasket 5 is arranged between the sealing groove 121 and the boss, the upper end of the rain cover 1 is provided with a gasket hole 101, the elastic gasket 2 is embedded into the gasket hole 101, the end cover screw 3 is connected with the elastic gasket 2 and the rain cover 1, and the inner diameter of the elastic gasket 2 deformed under pressure is smaller than the diameter of the central hole. The elastic gasket 2 and the elastic sealing gasket 5 are made of Ethylene Propylene Diene Monomer (EPDM) rubber.
When the rainproof sealing device is used, the stay cable 8 penetrates through the central hole, and the elastic gasket 2 is pressed to deform and is tightly attached to the stay cable 8. The aperture of the lower end of the central hole of the rain cover 1 is larger than that of the upper end, the cable guide pipe 9 is arranged at the lower end of the central hole of the rain cover 1, the requirement on the waterproof sealing performance of the cable guide pipe 9 and the rain cover 1 is low, and the cable guide pipe 9 can be directly sealed by a rubber ring sleeved outside the cable guide pipe 9. According to the rainproof sealing device provided by the invention, the central hole is sealed through the elastic gasket 2, and the butt joint surface is sealed through the elastic sealing gasket 5, so that the inner part and the outer part of the rainproof cover 1 are sealed. Because the elastic gasket 2 and the elastic sealing gasket 5 are uniformly deformed by a certain amount, even if the joint becomes large or the rubber is aged, the elastic gasket 2 and the elastic sealing gasket 5 can keep good sealing effect.
Referring to fig. 3, the cross section of the sealing groove 121 is U-shaped, and protrusions are disposed on the sidewalls of the sealing groove 121 to be close to each other. The elastic sealing gasket 5 is arranged on one side of the boss far away from the sealing groove 121, and when the boss extrudes the elastic sealing gasket 5, the elastic sealing gasket 5 can be wrapped on the boss in a deformation mode, and the mutually close bulges of the side wall of the sealing groove 121 enable the elastic sealing gasket 5 to extend to the root of the boss.
Fig. 4 is a schematic view before the sealing groove and the trapezoidal boss are butted, and fig. 5 is a schematic view after the sealing groove and the trapezoidal boss are butted, as shown in fig. 3 to 5, the cross section of the boss is semicircular, and the semicircular boss 111 shown in fig. 3 is formed. Alternatively, the boss may have a trapezoidal cross-section, forming a trapezoidal boss 113 as shown in fig. 4 and 5, with the shorter base of the trapezoid being adjacent to the seal slot 121.
Referring to fig. 1 to 3, the rain-proof sealing device further includes a connection screw (not shown), a first connection hole 112 penetrating through the abutting surface is disposed on the first rain-proof cover block 11, a second connection hole 122 penetrating through the abutting surface is disposed on the second rain-proof cover block 12, and the connection screw connects the first rain-proof cover block 11 and the second rain-proof cover block 12 through the first connection hole 112 and the second connection hole 122. A side cover 6 is arranged on one side of the rain cover 1 far away from the central hole, and the side cover 6 covers the butt seam and is connected with the rain cover 1 through a side cover screw (not shown) arranged on the side cover 6. Referring to fig. 3, a side cover hole 102 is formed in the side surface of the rain shield 1 for installing a side cover screw. Side cap 6 with be provided with rubber pad 7 between rain-proof cover 1, further sealed first rain-proof cover piecemeal 11 and the abutting joint face of second rain-proof cover piecemeal 12.
Referring to fig. 1 to 3, the diameter of the bottom of the gasket hole 101 is smaller than the diameter of the mouth of the gasket hole 101, so that the elastic gasket 2 can be conveniently installed, and the elastic gasket 2 can be easily wedged after being installed. The central hole of the rain cover 1 and the gasket hole 101 are coaxial holes. Rain-proof sealing device still includes end cover 4, end cover 4 sets up elastic gasket 2 is kept away from rain-proof cover 1 one end, end cover screw 3 is connected end cover 4 with rain-proof cover 1 makes the internal diameter of compressive deformation elastic gasket 2 be less than the centre bore diameter. Furthermore, the end cover 4 is provided with a squeezing tooth 401 on one side close to the elastic washer 2, and the squeezing tooth 401 is wedged between the elastic washer 2 and the washer hole 101, so that the inner diameter of the elastic washer 2 deformed by pressure is smaller than the diameter of the central hole.
Referring to fig. 2, the end cap 4 is formed by butting two semicircular rings, and the sections of the semicircular rings are rectangular. The butt joint face of the rain cover 1 is perpendicular to the butt joint face of the end cover 4. The apron 4 through end cover screw 3 with rain-proof cover 1 is connected the locking back, can with connect between two half pieces of rain-proof cover 1, further strengthened structural strength.
In summary, in an embodiment of the present invention, a rain-proof sealing device includes: first rain-proof cover piecemeal 11, rain-proof cover piecemeal 12 of second, elastic washer 2, end cover screw 3 and elastic sealing pad 5, first rain-proof cover piecemeal 11 with rain-proof cover piecemeal 12 butt joint of second forms rain-proof cover 1 including a centre bore, follow on the butt joint face of first rain-proof cover piecemeal 11 the centre bore radially is provided with the boss, be provided with on the butt joint face of rain-proof cover piecemeal 12 of second with the corresponding seal groove 121 of boss, elastic sealing pad 5 sets up seal groove 121 with between the boss, rain-proof cover 1 upper end is provided with packing ring hole 101, elastic washer 2 buries in the packing ring hole 101, end cover screw 3 is connected elastic washer 2 with rain-proof cover 1, make the internal diameter of compressive deformation elastic washer 2 be less than the centre bore diameter. According to the rainproof sealing device provided by the invention, the center hole is sealed through the elastic gasket which is deformed under pressure, and the butt joint surface of the rainproof cover is sealed through the elastic sealing gasket which is deformed under pressure, so that rainwater is prevented from permeating into the rainproof cover, and the service life of the inhaul cable structure is prolonged.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A rain-tight sealing device, comprising: first rain-proof cover piecemeal, the rain-proof cover piecemeal of second, elastic washer, end cover screw and elastic sealing pad, first rain-proof cover piecemeal with the rain-proof cover that the piecemeal butt joint of second formed a centre bore, follow on the butt joint face of first rain-proof cover piecemeal the centre bore radially is provided with the boss, be provided with on the butt joint face of the rain-proof cover piecemeal of second with the corresponding seal groove of boss, elastic sealing pad sets up the seal groove with between the boss, rain-proof cover one end is provided with the washer hole, elastic washer buries the washer is downthehole, end cover screw connection elastic washer with rain-proof cover makes the pressurized deformation the internal diameter of elastic washer is less than the centre bore diameter.
2. The weatherseal of claim 1, wherein said sealing groove is U-shaped in cross section and has adjacent protrusions on its sidewalls.
3. The weathertight seal of claim 2, wherein said resilient seal is disposed on a side of said seal groove remote from said boss, such that said boss compresses said resilient seal to deform said resilient seal to cover said boss.
4. A rain seal as claimed in claim 3 wherein the boss is semi-circular or trapezoidal in cross-section.
5. The rain sealing apparatus of claim 1, further comprising a connection screw, wherein the first rain cover segment is provided with a first connection hole penetrating the interface, the second rain cover segment is provided with a second connection hole penetrating the interface, and the connection screw connects the first rain cover segment and the second rain cover segment through the first connection hole and the second connection hole.
6. The weatherseal of claim 5, wherein said rain shield is provided with a side cover on a side thereof remote from said central aperture, said side cover covering said butt seam and being connected to said rain shield by a side cover screw provided on said side cover.
7. The weatherseal of claim 6, wherein a rubber gasket is disposed between said side cover and said rain shield.
8. The weatherseal of claim 1, further comprising an end cap, said end cap positioned on an end of said resilient gasket distal from said rain shield, said end cap being screwed to said end cap and said rain shield such that said resilient gasket deforms under pressure with an inner diameter less than a diameter of said central opening.
9. The weatherseal of claim 8, wherein said end cap is provided with crush teeth on a side thereof adjacent said resilient gasket, said crush teeth being wedged between said resilient gasket and said gasket aperture such that an inner diameter of said resilient gasket that is deformed under compression is less than a diameter of said central aperture.
10. The weatherseal of claim 8, wherein said end cap is formed by two half rings abutting, and wherein said abutting surface of said rain shield is perpendicular to said abutting surface of said end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174058.7A CN110847037A (en) | 2019-11-26 | 2019-11-26 | Rainproof sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911174058.7A CN110847037A (en) | 2019-11-26 | 2019-11-26 | Rainproof sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110847037A true CN110847037A (en) | 2020-02-28 |
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ID=69604617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911174058.7A Pending CN110847037A (en) | 2019-11-26 | 2019-11-26 | Rainproof sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110847037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012106A (en) * | 2020-09-15 | 2020-12-01 | 同济大学 | Flexible waterproof cover free from bridge inhaul cable vibration damage |
| CN112216477A (en) * | 2020-09-21 | 2021-01-12 | 国网浙江兰溪市供电有限公司 | Main transformer respirator with rain-proof cover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061119A (en) * | 2000-08-24 | 2002-02-28 | Yokohama Rubber Co Ltd:The | Cable water stop cover |
| CN201042019Y (en) * | 2007-04-18 | 2008-03-26 | 青岛海信移动通信技术股份有限公司 | Waterproof device around portable mobile terminal shell |
| 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 |
| CN102619168A (en) * | 2012-04-18 | 2012-08-01 | 柳州欧维姆机械股份有限公司 | Water-proof sealing cover |
| CN103741600A (en) * | 2014-01-28 | 2014-04-23 | 江苏法尔胜缆索有限公司 | Tarpaulin for stay cable and beam end |
-
2019
- 2019-11-26 CN CN201911174058.7A patent/CN110847037A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061119A (en) * | 2000-08-24 | 2002-02-28 | Yokohama Rubber Co Ltd:The | Cable water stop cover |
| CN201042019Y (en) * | 2007-04-18 | 2008-03-26 | 青岛海信移动通信技术股份有限公司 | Waterproof device around portable mobile terminal shell |
| 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 |
| CN102619168A (en) * | 2012-04-18 | 2012-08-01 | 柳州欧维姆机械股份有限公司 | Water-proof sealing cover |
| CN103741600A (en) * | 2014-01-28 | 2014-04-23 | 江苏法尔胜缆索有限公司 | Tarpaulin for stay cable and beam end |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012106A (en) * | 2020-09-15 | 2020-12-01 | 同济大学 | Flexible waterproof cover free from bridge inhaul cable vibration damage |
| CN112012106B (en) * | 2020-09-15 | 2021-11-09 | 同济大学 | Flexible waterproof cover free from bridge inhaul cable vibration damage |
| CN112216477A (en) * | 2020-09-21 | 2021-01-12 | 国网浙江兰溪市供电有限公司 | Main transformer respirator with rain-proof cover |
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Application publication date: 20200228 |
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| RJ01 | Rejection of invention patent application after publication |