CN205171834U - Sealed anti -skidding prestressing force stretch -draw end ground tackle - Google Patents
Sealed anti -skidding prestressing force stretch -draw end ground tackle Download PDFInfo
- Publication number
- CN205171834U CN205171834U CN201520974200.7U CN201520974200U CN205171834U CN 205171834 U CN205171834 U CN 205171834U CN 201520974200 U CN201520974200 U CN 201520974200U CN 205171834 U CN205171834 U CN 205171834U
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- work
- ground tackle
- skidding
- seal closure
- prestressing force
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Abstract
The utility model provides a sealed anti -skidding prestressing force stretch -draw end ground tackle, including the sealed cowling, the antiskid spring, the work clamping piece, work anchor circle, the anchor lower bolster, the spiral muscle, steel strand wires, the bellows, work clamping piece and steel strand wires are placed in the confined space who comprises sealed cowling and work anchor circle, install anti -skidding spring between sealed cowling and the work clamping piece, the one end of antiskid spring is passed steel strand wires and is hugged closely on the work clamping piece, the other end is hugged closely on the sealed cowling, the sealed cowling adopts threaded connection's mode to install and circles at the work anchor. Use the utility model discloses a better sealed effect can be obtained to the ground tackle, prevents effectively that the ground tackle from working the clamping piece and the not hard up steel strand wires that result in appearing and produce smooth silk in the use.
Description
Technical field
The utility model relates to engineering prestress tensioning equipment technical field, particularly relates to the anti-skidding prestressing force pull end ground tackle of a kind of sealing.
Background technology
Prestressing technique refers to before a component is not yet installed and used, and presses in advance by the position that may be opened after external force at it, and short its produces compressive pre-stress, to offset the tensile stress that External Force Acting produces.In civil engineering construction, because steel wire or steel strand have higher tensile strength, in order to play the effect of high strength cast iron in reinforced concrete structure, need in component or structure reinforcing bar Shi Hanzhang in advance.Prestressed concrete is exactly before structure bearing load, internal stress is introduced artificially in advance in concrete or steel concrete, with the stress produced under offsetting maneuvering load, thus concrete component is not ftractureed under maneuvering load effect, postpone cracking or reduce the width of crack occurrence.Be widely used in various building and stabilization works field at present, and obtain good effect.
The building fields such as highway bridge are the most widely used places of prestressing technique.In production practices, first the steel strand tension in prestressed member will couple together steel strand head and stretch-draw machinery, and common connected mode is ground tackle method.In some unique constructions, the normal use of ground tackle be ensured, the normalization of anchorage installation and use procedure should be ensured, also require that ground tackle will have rational structure, to make cooperation good between each parts of ground tackle, reach the object of Shi Hanzhang.
But, along with the development of prestressing technique, in civil construction process, more and more higher to the requirement of prestressed anchor.All there is shortcoming to a certain degree in current prestressing force pull end ground tackle.Tradition prestressed anchor can produce the phenomenon that gross distortion and steel strand inside contract in stretching process, thus causes producing slip because not contacting completely between anchor circle and intermediate plate, this phenomenon deposit more obvious in the case of vibrations.The generation of stripped thread phenomenon will make to connect between each parts of ground tackle insecure, cause the prestressing applied well below design prestressing value, seriously reduce the service efficiency of ground tackle.
In addition, traditional ground tackle seal closure is generally all mounted on anchor electroplax, and adopts bolt to fixedly mount.But generally all cast due to anchor plate and form, its surface is very coarse, generally cannot arrive the effect of sealing.The major way addressed this problem be exactly to casting after anchor plate carry out machine, machine increases causing the cost of ground tackle.In addition, the sealing means adopting bolt to fix makes the volume of seal closure increase, and when stayed anchor hole is less, is unfavorable for the installation and removal of seal closure.Therefore, be badly in need of a kind of new prestressing force pull end anchoring system, to prevent the phenomenon of ground tackle in use steel strand generation stripped thread, and reduce the volume of seal closure, reduce reinforcement cost, improve control accuracy and the service efficiency of stretch-draw anchor.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of sealing anti-skidding prestressing force pull end ground tackle, to prevent the phenomenon of ground tackle in use steel strand generation stripped thread, and reduce the volume of seal closure, reduce reinforcement cost, improve control accuracy and the service efficiency of stretch-draw anchor, thus reach the prestressed object of prestressed member applying setting.
The utility model reaches by following technical solution:
The anti-skidding prestressing force pull end ground tackle of a kind of sealing, comprise seal closure, anti-slip spring, work clip sheet, work anchor circle, anchor backing plate, spiral bar, steel strand, bellows, work clip sheet and steel strand are placed in the seal cavity that is made up of seal closure and work anchor circle, are provided with anti-slip spring between seal closure and work clip sheet.
One end of anti-slip spring is close on work clip sheet through steel strand, the other end is close on seal closure, seal closure adopts the mode be threaded to be arranged on work anchor circle, and seal closure and auxiliary black box composition hermetically-sealed construction thereof, work anchor circle is arranged on anchor backing plate.
Further, seal closure is foundry goods, and surface scribbles protective paint, is shaped with standard female in seal closure port.Seal closure is a kind of cylindrical seal cover of casting, and inside is provided with cavity, and its surface and inside are provided with the fillet that smoothly transits, and the wall thickness of seal closure can be chosen according to concrete service condition.
Further, anti-slip spring is made up of carbon spring steel wires, and steel wire diameter is 5 ~ 10mm, and the external diameter of spring is less than the large end external diameter of work clip sheet.
Further, work anchor circle left end is shaped with standard external, and the working depth of screw thread is 20 ~ 100mm.Work anchor circle inside is shaped with the bellmouth that cone angle is, bellmouth left end is the straight hole of diameter 17.5mm, and communicates with the small end of bellmouth.
Further, anchor backing plate is a kind of circular tower shape backing plate, and with certain tapering, its tapering is determined jointly by backing plate end diameter and outside diameter.Anchor plate inner hollow, the uniform wall thickness of backing plate, profile is with at least two-layer boss rank.Conveniently the location of anchor circle and installation, the large end face of doughnut lower bolster has the circular pit that the degree of depth is 3 ~ 5mm, the diameter comparatively large 5 ~ 10mm of anchor circle of circular groove.
The utility model adopts above scheme, there is following characteristics: relative to existing scheme, the structure of the utility model to seal closure is improved, connected by original bolt and change present being threaded into, and between seal closure and work anchor circle, be provided with O RunddichtringO, sealing mat or seal grease, for ensureing sealing effectiveness.In addition, between seal closure and work clip sheet, be provided with anti-slip spring, to prevent ground tackle in use work clip sheet appearance from loosening, make steel strand produce the phenomenon of stripped thread.This improvement can significantly improve the control accuracy and service efficiency that improve stretch-draw anchor, strengthens the sealing effectiveness of seal closure, cuts down finished cost.
Accompanying drawing explanation
Fig. 1 is the anti-skidding prestressing force pull end ground tackle of a kind of sealing;
In figure: 1, seal closure; 2, anti-slip spring; 3, work clip sheet; 4, work anchor circle; 5, anchor backing plate; 6, spiral bar; 7, steel strand; 8, bellows.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, the utility model is the anti-skidding prestressing force pull end ground tackle of a kind of sealing, comprise seal closure 1, anti-slip spring 2, work clip sheet 3, work anchor circle 4, anchor backing plate 5, spiral bar 6, steel strand 7, bellows 8, work clip sheet 3 and steel strand 7 are placed in the seal cavity that is made up of seal closure 1 and work anchor circle 4, , anti-slip spring 2 is provided with between seal closure 1 and filing appliance 3, one end of anti-slip spring 2 is close on work clip sheet 3 through steel strand 7, the other end is close on seal closure 1, seal closure 1 adopts the mode be threaded to be arranged on work anchor circle 4, seal closure 1 and auxiliary black box composition hermetically-sealed construction thereof, work anchor circle 4 is arranged on anchor backing plate 5.
Seal closure 1 is a kind of cylindrical seal cover of casting, and inside is provided with cavity, and its surface and inside are provided with the fillet that smoothly transits, and wall thickness can be chosen according to concrete service condition, and surface scribbles protective paint, is shaped with standard female in port.Anti-slip spring 2 is a kind of standard spring, is made up of carbon spring steel wires, and steel wire diameter is 5 ~ 10mm, and the external diameter of spring is less than the large end external diameter of work clip sheet.Work anchor circle 4 left end is shaped with common standard external screw thread, and the working depth of screw thread is 20 ~ 100mm, and inside is shaped with the bellmouth that cone angle is, bellmouth left end is the straight hole of diameter 17.5mm, and communicates with the small end of bellmouth.Anchor backing plate 5 is a kind of circular tower shape backing plate, and with certain tapering, its tapering is determined jointly by backing plate end diameter and outside diameter.Anchor plate inner hollow, the uniform wall thickness of backing plate, profile is with at least two-layer boss rank.Conveniently the location of anchor circle and installation, the large end face of doughnut lower bolster has the circular pit that the degree of depth is 3 ~ 5mm, the diameter comparatively large 5 ~ 10mm of anchor circle of circular pit.Large end face is respectively equipped with installing hole and grout hole, pours into concrete for fixing ground tackle to engineering structures inside.
During use, penetrate steel strand 7 in bellows 8, and be arranged in the small end of anchor backing plate 5, on the right side of anchor backing plate, port loads spiral bar 6, to ensure centering in circular pit work anchor circle 4 being arranged on anchor backing plate 5.Clamp steel strand 7 with work clip sheet 3 and be placed in work anchor circle 4 bellmouth.Use after jack completes the stretch-draw of ground tackle, adopt the redundance of Abrasive cutting off machine cutting of steel twisted wire, at steel strand 7, anti-slip spring 2 is inserted at place, and is close to work clip sheet 3 and holds greatly.Finally seal closure 1 is installed, between seal closure and anchor circle, is provided with O RunddichtringO, sealing mat or seal grease.Seal closure 1 adopts the mode be threaded to be arranged on work anchor circle 4, ensures that anti-slip spring contacts completely with seal closure 1 inner bottom surface after installation.By reasonable connection and the cooperation of above each parts, make it after the prestressing force applying setting to bridge, the stripped thread phenomenon avoiding anchor deformation and steel strand to inside contract causing, strengthens the sealing effectiveness of seal closure simultaneously, improves control accuracy and the service efficiency of stretch-draw anchor.
Other unspecified part is prior art.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
Claims (5)
1. the anti-skidding prestressing force pull end ground tackle of sealing, mainly comprise seal closure (1), anti-slip spring (2), work clip sheet (3), work anchor circle (4) and steel strand (7), it is characterized in that: work clip sheet (3) and steel strand (7) are placed in the seal cavity that is made up of seal closure (1) and work anchor circle (4), are provided with anti-slip spring (2) between seal closure (1) and work clip sheet (3).
2. the anti-skidding prestressing force pull end ground tackle of sealing as claimed in claim 1, is characterized in that: described seal closure (1) is foundry goods, and surface scribbles protective paint, is shaped with standard female in seal closure port.
3. the anti-skidding prestressing force pull end ground tackle of sealing as claimed in claim 1, is characterized in that: described work anchor circle (4) left end is shaped with standard external, and the working depth of screw thread is 20 ~ 100mm.
4. the anti-skidding prestressing force pull end ground tackle of sealing as claimed in claim 1, it is characterized in that: described anti-slip spring (2) is made up of carbon spring steel wires, steel wire diameter is 5 ~ 10mm.
5. the anti-skidding prestressing force pull end ground tackle of sealing as claimed in claim 1, is characterized in that: the external diameter of described anti-slip spring (2) is less than the large end external diameter of work clip sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974200.7U CN205171834U (en) | 2015-12-01 | 2015-12-01 | Sealed anti -skidding prestressing force stretch -draw end ground tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974200.7U CN205171834U (en) | 2015-12-01 | 2015-12-01 | Sealed anti -skidding prestressing force stretch -draw end ground tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171834U true CN205171834U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520974200.7U Expired - Fee Related CN205171834U (en) | 2015-12-01 | 2015-12-01 | Sealed anti -skidding prestressing force stretch -draw end ground tackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205171834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812252A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
| CN113983330A (en) * | 2021-11-02 | 2022-01-28 | 衡阳市新德力交通材料有限公司 | Embedded part device for railway camera |
-
2015
- 2015-12-01 CN CN201520974200.7U patent/CN205171834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812252A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | The anti-skidding prestressing force pull end anchorage of one kind sealing |
| CN113983330A (en) * | 2021-11-02 | 2022-01-28 | 衡阳市新德力交通材料有限公司 | Embedded part device for railway camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 421200 5 Qingjiang North Road, West Town, Hengyang County, Hengyang, Hunan Patentee after: Hengyang city Xindeli traffic Material Co. Ltd. Address before: 421000 5 Qingjiang North Road, Hengyang Economic Development Zone, Hengyang, Hengyang Patentee before: HENGYANG XINDELI PRESTRESS CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20191201 |