CN105064617A - Anchor device sealing structure of steel stranded wire stay cable - Google Patents
Anchor device sealing structure of steel stranded wire stay cable Download PDFInfo
- Publication number
- CN105064617A CN105064617A CN201510476117.1A CN201510476117A CN105064617A CN 105064617 A CN105064617 A CN 105064617A CN 201510476117 A CN201510476117 A CN 201510476117A CN 105064617 A CN105064617 A CN 105064617A
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- stripper plate
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- 238000007789 sealing Methods 0.000 title claims abstract description 158
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000012856 packing Methods 0.000 claims description 42
- 238000003825 pressing Methods 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 7
- 208000002193 Pain Diseases 0.000 claims description 3
- 239000003292 glue Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention relates to an anchor device sealing structure of a steel stranded wire stay cable. The anchor device sealing structure comprises an anchor plate and a sealing unit arranged at the back end of the anchor plate, wherein the sealing unit comprises a sealing tube; the back end of the sealing tube is provided with a sealing plate assembly; the sealing plate assembly, the sealing tube and the anchor plate define a sealed filling space; the sealing plate assembly comprises a sealed inner squeezing plate, an elastic sealing plate, a sealed outer squeezing plate and a press plate which are sequentially compressed; a through hole through which a steel stranded wire penetrates is formed in each of the sealed inner squeezing plate, the elastic sealing plate, the sealed outer squeezing plate and the press plate; a lip-shaped lug boss is formed in one end or each of two ends of the through hole of the elastic sealing plate; correspondingly, a squeezing surface is formed at one end, in contact with the elastic sealing plate, of the through hole of each of the sealed inner squeezing plate and the sealed outer squeezing plate; and squeezing surface is matched with the corresponding lip-shaped lug boss, so that the lip-shaped lug boss deforms to seal the steel stranded wire at the through hole part. Thereby the sealing of the steel stranded wire at the through hole parts of the sealed inner squeezing plate, the elastic sealing plate and the sealing outer squeezing plate is realized.
Description
Technical field
The present invention relates to a kind of ground tackle of guy of twisted steel cable of prestress engineering field, be specifically related to a kind of intermediate plate anchorage sealing structure of guy of twisted steel cable.
Background technology
The intermediate plate ground tackle of guy of twisted steel cable is primarily of anchor slab and intermediate plate composition, and wherein intermediate plate is two panels or three-chip type, by intermediate plate internal thread sting hold steel strand and wedging enter anchor slab bellmouth in thus keep the prestressing force that is applied on steel strand.Usual prestressed inefficacy is often because the corrosion of steel strand and ground tackle causes.The appearance of ground tackle is undertaken anticorrosion by various surfacing (as the coat of metal, paint or grease coating).And the inside of ground tackle is anticorrosion following several prior art:
The first is a kind of anchorage sealing structure disclosed in patent announcement CN101487231B, as shown in Figure 5, sealing structure, by arranging hole for injecting glue, sealing plate and sealant layer, makes ground tackle inside seal completely, completely cut off steam and corrosive medium enters, reach anticorrosion object.But the shortcoming existed is: 1, during injecting glue seal construction, need special injecting glue facility; 2, when the steel strand that object of construction production adopts are non-anticorrosion type steel strand, because anchoring section must divest the plastic sheath of steel strand, sealing structure constraint, in the construction size of steel strand length direction, can not protect the steel strand of the plastics section of divesting.
The second is a kind of anchorage sealing structure disclosed in Patent publication No CN103850181A, as shown in Figure 6, the main feature of sealing structure be by arranging sealing drum, O type circle I, O type circle II, pressure strip, sealing plate, the component such as pressure-bearing cushion cover, elastic seal cartridge that compressor arm is equal with steel strand radical with quantity form, again at the anticorrosion grease of ground tackle inside perfusion, ground tackle internal clearance is filled, isolated steam and corrosive medium enter, and reach anticorrosion object.But there is complex structure, building block is many, inconvenience is installed; High with processing request, the shortcoming that cost is high.
Summary of the invention
Technical problem to be solved by this invention provides one to be convenient to assembling for above-mentioned prior art, and sealing is applicable to the hermetically-sealed construction of various guy of twisted steel cable reliably.
The present invention's adopted technical scheme that solves the problem is: a kind of anchorage sealing structure of guy of twisted steel cable, comprise anchor slab and the sealing unit being arranged on anchor slab rear end, described anchor slab has the anchor hole passed for steel strand, the front end of described anchor hole is shaped to taper hole, the intermediate plate stinging tight steel strand is configured with in described taper hole, described sealing unit comprises sealing drum, and the rear end of described sealing drum is provided with sealing plate assembly, and described sealing plate assembly, sealing drum and anchor slab surround sealing packing space, described sealing plate assembly comprises stripper plate in the sealing that compresses successively, elastic packing plate, seal outer stripper plate and pressing plate, stripper plate in described sealing, elastic packing plate, seal the through hole outer stripper plate and pressing plate offering and runs through for steel strand, the through hole one or both ends of described elastic packing plate form lip projection, correspondingly, in described sealing, stripper plate is shaped to compressive plane with one end that through hole is contacting with elastic packing plate of the outer stripper plate of sealing, described compressive plane matches with lip projection and makes protruding the deforming of lip form the sealing of steel strand in through hole.
Preferably, described compressive plane is taper surface, and taper surface can make lip protruding after deformation and form larger sealing function face between steel strand, obtains higher sealing effectiveness.
Preferably, the internal perisporium of described sealing drum forms spacing ring shoulder, in described sealing, the side of stripper plate is takeed on to conflict with described spacing ring and is coordinated.Spacing ring shoulder, as the steric hindrance of sealing plate assembly, under the coupling mechanism force of tie rod, can ensure the sealing sealing packing space.
Preferably, described anchor slab is connected by tie rod with sealing plate assembly, in described anchor slab, sealing, stripper plate, elastic packing plate and the outer stripper plate of sealing offer the clear opening run through for this tie rod respectively, described pressing plate offers screwed hole, and the far-end of described tie rod coordinates with described screwed hole.During assembling, the operation rotating tie rod can make the pressure of pressing plate pass to stripper plate in the outer stripper plate of sealing, elastic packing plate and sealing successively, thrust achieves face, face and transmits, the active force between the different adjacent panels of sealing plate assembly can be made more even, prevent unbalance stress from causing the local distortion of plate.Compared with adopting each plate of tie rod direct lock sealing board component, not only structure is simple but also avoid the uneven and distortion that causes of plate local pressure, favourable in sealing.
Good setting is, the periphery, front end of described sealing drum is arranged with junction plate, and sealing drum is connected with described anchor slab by this junction plate, the contact surface of described anchor slab and junction plate is provided with and seals O type circle.
In order to obtain good steel strand antiseptic property, fill anticorrosion grease in described sealing packing space, described anchor slab offers respectively the oiling through hole communicated with described sealing packing space, the entrance of described oiling through hole is configured with plug screw.
The mounting means of the anchorage sealing structure of guy of twisted steel cable of the present invention is, tie rod successively through anchor slab, sealing packing space, the clear opening passed on stripper plate in sealing, elastic packing plate and the outer stripper plate of sealing, then is connected with the screwed hole on pressing plate; Turn tie rod, in tie rod band dynamic pressure plate, sealing, stripper plate, elastic packing plate and sealing are outer extrudes movement, by the position-limiting action that the spacing ring of sealing drum is takeed on, there is dilatancy in elastic packing plate both sides pressurized, sealing is adjacent on the one hand between itself and sealing drum, ring-type lip projection on the other hand on elastic packing plate is subject to the extruding sealing interior stripper plate and the outer stripper plate taper surface of sealing, ring-type lip projection closely bonds steel strand surrounding, thus realizes steel strand stripper plate, elastic packing plate and seal the sealing of outer stripper plate through hole in sealing.
Compared with prior art, the invention has the advantages that:
(1) elastic packing plate of the present invention arranges lip annular projection, wraps close after extruding with steel strand holding, and sealing reliably;
(2) structure is simple, and easy to assembly, elastic packing plate of the present invention is easy to moulding technology integral manufacturing, and machining accuracy is easy to control;
(3) by adjusting loose tie rod, the single replacing of steel strand can be realized, after steel strand are changed, again screwing pull bar, realize the object resealed.
Accompanying drawing explanation
Fig. 1 is the structural representation of anchorage sealing structure in the embodiment of the present invention;
Fig. 2 is the structural representation of stripper plate in sealing in the embodiment of the present invention;
Fig. 3 is the structural representation of embodiment of the present invention Elastic sealing plate;
Fig. 4 is the structural representation of embodiment of the present invention center platen;
Fig. 5 is the schematic diagram of existing anchorage sealing structure;
Fig. 6 is the schematic diagram of another existing anchorage sealing structure.
Critical piece label declaration in Fig. 5 and Fig. 6: protective cover 12, anticorrosion grease 19, steel strand 20, sealing mat 21, intermediate plate 22, anchor slab 23, sealing plate 24, hole for injecting glue 25, storage glue groove 26, fluid sealant 27; Steel strand 28, intermediate plate 29, housing screw 30, compressor arm 31, anticorrosion grease 32, anchor slab 33, O type circle I 34, backing plate 35, sealing drum 36, pressure strip 37, inner sealing plate 38, pressure-bearing cushion cover 39, O type circle II 40, sealing cushion cover 41, stretching screw 42, external seal plate 43, hold-down ring 44, pouring orifice screw 45, attachment screw 46, cage ring 47.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figures 1 to 4, the anchorage sealing structure of the guy of twisted steel cable in the present embodiment, comprise anchor slab 4 and the sealing unit being arranged on anchor slab 4 rear end, described anchor slab 4 has the anchor hole passed for steel strand 1, the front end of described anchor hole is shaped to taper hole, is configured with the intermediate plate 2 stinging tight steel strand 1 in described taper hole.Described sealing unit comprises sealing drum 7, the rear end of described sealing drum 7 is provided with sealing plate assembly, described sealing plate assembly, sealing drum 7 and anchor slab 4 surround sealing packing space 13, anticorrosion grease is filled in sealing packing space 13, anchor slab 4 offers respectively and the oiling through hole 16 sealing packing space 13 and communicate, the entrance of oiling through hole 16 is configured with plug screw 17.The anchor hole of anchor slab 4 is provided with cage ring 15 as steel strand protection buffer unit near the port, one end of described sealing packing space 13, steel strand 1 also fit tightly with it through this cage ring 15.The periphery, front end of sealing drum 7 is arranged with junction plate 6, and sealing drum 7 adopts screw 14 to be connected by this junction plate 6 with described anchor slab 4, the contact surface of described anchor slab 4 and junction plate 6 is provided with and seals O type circle 5.
Sealing plate assembly comprises stripper plate 9 in the sealing that compresses successively, elastic packing plate 10, seal outer stripper plate 11 and pressing plate 12, stripper plate 9 in described sealing, elastic packing plate 10, seal the through hole 92 outer stripper plate 11 and pressing plate 12 offering and runs through for steel strand 1, 102, 121, through hole 102 two ends of described elastic packing plate 10 form lip projection 101, correspondingly, in sealing, stripper plate 9 is shaped to taper surface 91 with one end that through hole is contacting with elastic packing plate 10 of the outer stripper plate 11 of sealing, taper surface 91 matches with lip projection 101 and lip projection 101 is deformed and forms the sealing of steel strand 1 in through hole.
Anchor slab 4 is connected by tie rod 3 with sealing plate assembly, in anchor slab 4, sealing, stripper plate 9, elastic packing plate 10 and the outer stripper plate 11 of sealing offer the clear opening 93,103,122 run through for this tie rod respectively, pressing plate 12 offers screwed hole 122, the far-end of tie rod 3 coordinates with the screwed hole 122 of pressing plate 12.The internal perisporium of sealing drum 7 forms spacing ring shoulder 8, in sealing, the side of stripper plate 9 and spacing ring are takeed on 8 inconsistent.During assembling, the operation rotating tie rod 3 can make the pressure of pressing plate 12 pass to stripper plate 9 in the outer stripper plate 11 of sealing, elastic packing plate 10 and sealing successively, thrust achieves face, face and transmits, the active force between the different adjacent panels of sealing plate assembly can be made more even, prevent unbalance stress from causing the local distortion of plate, guarantee sealing effectiveness.
The mounting means of above-mentioned anchorage sealing structure: tie rod successively through anchor slab, sealing packing space, the clear opening passed on stripper plate in sealing, elastic packing plate and the outer stripper plate of sealing, then is connected with the screwed hole on pressing plate; Turn tie rod, in tie rod band dynamic pressure plate, sealing, stripper plate, elastic packing plate and sealing are outer extrudes movement, by the position-limiting action that the spacing ring of sealing drum is takeed on, there is dilatancy in elastic packing plate both sides pressurized, sealing is adjacent on the one hand between itself and sealing drum, ring-type lip projection on the other hand on elastic packing plate is subject to the extruding sealing interior stripper plate and the outer stripper plate taper surface of sealing, ring-type lip projection closely bonds steel strand surrounding, thus realizes steel strand stripper plate, elastic packing plate and seal the sealing of outer stripper plate through hole in sealing.
Claims (6)
1. the anchorage sealing structure of a guy of twisted steel cable, comprise anchor slab and the sealing unit being arranged on anchor slab rear end, described anchor slab has the anchor hole passed for steel strand, the front end of described anchor hole is shaped to taper hole, the intermediate plate stinging tight steel strand is configured with in described taper hole, it is characterized in that: described sealing unit comprises sealing drum, the rear end of described sealing drum is provided with sealing plate assembly, and described sealing plate assembly, sealing drum and anchor slab surround sealing packing space, described sealing plate assembly comprises stripper plate in the sealing that compresses successively, elastic packing plate, seal outer stripper plate and pressing plate, stripper plate in described sealing, elastic packing plate, seal the through hole outer stripper plate and pressing plate offering and runs through for steel strand, the through hole one or both ends of described elastic packing plate form lip projection, correspondingly, in described sealing, stripper plate is shaped to compressive plane with one end that through hole is contacting with elastic packing plate of the outer stripper plate of sealing, described compressive plane matches with lip projection and makes protruding the deforming of lip form the sealing of steel strand in through hole.
2. the anchorage sealing structure of guy of twisted steel cable according to claim 1, is characterized in that: described compressive plane is taper surface.
3. the anchorage sealing structure of guy of twisted steel cable according to claim 1, is characterized in that: the internal perisporium of described sealing drum forms spacing ring shoulder, in described sealing, the side of stripper plate is takeed on to conflict with described spacing ring and coordinated.
4. the anchorage sealing structure of guy of twisted steel cable according to claim 1, it is characterized in that: described anchor slab is connected by tie rod with sealing plate assembly, in described anchor slab, sealing, stripper plate, elastic packing plate and the outer stripper plate of sealing offer the clear opening run through for this tie rod respectively, described pressing plate offers screwed hole, and the far-end of described tie rod coordinates with described screwed hole.
5. the anchorage sealing structure of guy of twisted steel cable according to claim 1, it is characterized in that: the periphery, front end of described sealing drum is arranged with junction plate, sealing drum is connected with described anchor slab by this junction plate, the contact surface of described anchor slab and junction plate is provided with and seals O type circle.
6. the anchorage sealing structure of guy of twisted steel cable according to claim 1, it is characterized in that: in described sealing packing space, fill anticorrosion grease, described anchor slab offers respectively the oiling through hole communicated with described sealing packing space, the entrance of described oiling through hole is configured with plug screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476117.1A CN105064617A (en) | 2015-08-06 | 2015-08-06 | Anchor device sealing structure of steel stranded wire stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476117.1A CN105064617A (en) | 2015-08-06 | 2015-08-06 | Anchor device sealing structure of steel stranded wire stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105064617A true CN105064617A (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476117.1A Pending CN105064617A (en) | 2015-08-06 | 2015-08-06 | Anchor device sealing structure of steel stranded wire stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105064617A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411376A (en) * | 2020-12-07 | 2021-02-26 | 柳州市邱姆预应力机械有限公司 | Inhaul cable anti-skidding device and installation method thereof |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0323285A1 (en) * | 1987-11-25 | 1989-07-05 | Freyssinet International (Stup) | Stay cables and their anchorage |
| CN2782814Y (en) * | 2005-03-03 | 2006-05-24 | 柳州欧维姆机械股份有限公司 | In vitro cable seal device |
| CN201704878U (en) * | 2010-01-26 | 2011-01-12 | 北京市建筑工程研究院 | Combined type reinforcement connecting sleeve |
| CN201704879U (en) * | 2010-01-26 | 2011-01-12 | 北京市建筑工程研究院 | Flask-shaped grouting rebar connecting sleeve |
| CN103850181A (en) * | 2014-01-28 | 2014-06-11 | 柳州欧维姆机械股份有限公司 | Separable sealing structure of dragline anchor and method for realizing sealing of anchor |
| CN204780598U (en) * | 2015-07-01 | 2015-11-18 | 柳州豪姆机械有限公司 | Cable -stay bridge steel strand wires cable ground tackle sealing device |
| CN204919992U (en) * | 2015-08-06 | 2015-12-30 | 江阴法尔胜住电新材料有限公司 | Ground tackle seal structure of steel strand wires cable |
-
2015
- 2015-08-06 CN CN201510476117.1A patent/CN105064617A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0323285A1 (en) * | 1987-11-25 | 1989-07-05 | Freyssinet International (Stup) | Stay cables and their anchorage |
| CN2782814Y (en) * | 2005-03-03 | 2006-05-24 | 柳州欧维姆机械股份有限公司 | In vitro cable seal device |
| CN201704878U (en) * | 2010-01-26 | 2011-01-12 | 北京市建筑工程研究院 | Combined type reinforcement connecting sleeve |
| CN201704879U (en) * | 2010-01-26 | 2011-01-12 | 北京市建筑工程研究院 | Flask-shaped grouting rebar connecting sleeve |
| CN103850181A (en) * | 2014-01-28 | 2014-06-11 | 柳州欧维姆机械股份有限公司 | Separable sealing structure of dragline anchor and method for realizing sealing of anchor |
| CN204780598U (en) * | 2015-07-01 | 2015-11-18 | 柳州豪姆机械有限公司 | Cable -stay bridge steel strand wires cable ground tackle sealing device |
| CN204919992U (en) * | 2015-08-06 | 2015-12-30 | 江阴法尔胜住电新材料有限公司 | Ground tackle seal structure of steel strand wires cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411376A (en) * | 2020-12-07 | 2021-02-26 | 柳州市邱姆预应力机械有限公司 | Inhaul cable anti-skidding device and installation method thereof |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |