CN204174840U - The locking ground tackle of prestress anchoraging - Google Patents
The locking ground tackle of prestress anchoraging Download PDFInfo
- Publication number
- CN204174840U CN204174840U CN201420605528.7U CN201420605528U CN204174840U CN 204174840 U CN204174840 U CN 204174840U CN 201420605528 U CN201420605528 U CN 201420605528U CN 204174840 U CN204174840 U CN 204174840U
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- anchor slab
- intermediate plate
- plate
- pressing plate
- prestress
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Abstract
The utility model relates to the locking ground tackle of prestress anchoraging.The anchor that object is to provide should have the feature that anti-loosing effect is reliable, structure is simple and easy for installation.Technical scheme is: the locking ground tackle of prestress anchoraging, comprise be embedded in anchor plate in concrete and spiral bar, to be arranged on the left of anchor plate and be shaped with some anchor slab holes work anchor slab, be positioned at anchor slab hole and for the intermediate plate that clamps prestress wire and the intermediate plate anti-loose structure be arranged on work anchor slab; Described intermediate plate anti-loose structure comprises and being positioned at the pressing plate on the left of work anchor slab, the hollow bolt be arranged in pressing plate screw, being positioned between hollow bolt and intermediate plate and disc spring for holding out against intermediate plate; It is characterized in that: described pressing plate is a steel bushing, the surrounding shirt rim of steel bushing extends and covers work anchor slab on prestress wire Impact direction, be fixed on by pressing plate on work anchor slab after some connecting bolts pass through the connecting hole of shirt rim, the axis of connecting bolt is vertical with prestress wire Impact direction.
Description
Technical field
The utility model relates to a kind of anchor device, specifically a kind of prestressed anchor.
Background technology
Post stretching is a kind of construction method be widely used in bridge construction and reinforcing, usually adopts locking ground tackle lax to avoid prestress wire to occur in post-stressed anchoring system.
The difference of existing locking ground tackle and common ground tackle is, intermediate plate anti-loose structure set up by common stretching end ground tackle; As shown in Figure 2, this intermediate plate anti-loose structure comprises pressing plate 5, connecting bolt 8, hollow bolt 6, disc spring 7; Pressing plate is fixed on the left side of work anchor slab by connecting bolt, simultaneously pressing plate is provided with hollow bolt and pressing plate holds out against intermediate plate by hollow bolt and disc spring, intermediate plate stressed backward anchor slab hole 31 adduction contracts compression prestress wire, therefore intermediate plate cannot exit anchor slab hole backward on the Impact direction of prestress wire, thus intermediate plate can be avoided to get loose and ensure the reliable of anchoring system.
But penetrate due to bolt the Impact direction that direction is parallel to prestress wire, when bolt occurs loosening after a long time use, pressing plate will no longer be exerted pressure to intermediate plate, thus cause locking ground tackle to lose efficacy (and intermediate plate deviates from anchor slab hole due to a variety of causes after, post-tensioned prestressing will be caused to reduce and structural bearing capacity reduces).
Utility model content
The purpose of this utility model overcomes the deficiency in above-mentioned background technology, provides a kind of prestress anchoraging locking ground tackle, and this anchor should have the feature that anti-loosing effect is reliable, structure is simple and easy for installation.
The technical solution of the utility model is: the locking ground tackle of prestress anchoraging, comprise be embedded in anchor plate in concrete and spiral bar, to be arranged on the left of anchor plate and be shaped with some anchor slab holes work anchor slab, be positioned at anchor slab hole and for the intermediate plate that clamps prestress wire and be arranged on work anchor slab intermediate plate anti-loose structure; Described intermediate plate anti-loose structure comprises and being positioned at the pressing plate on the left of work anchor slab, the hollow bolt be arranged in pressing plate screw, being positioned between hollow bolt and intermediate plate and disc spring for holding out against intermediate plate; It is characterized in that: described pressing plate is a steel bushing, the surrounding shirt rim of steel bushing extends and covers work anchor slab on prestress wire Impact direction, be fixed on by pressing plate on work anchor slab after some connecting bolts pass through the connecting hole of shirt rim, the axis of connecting bolt is vertical with prestress wire Impact direction.
The outer peripheral face of described work anchor slab is shaped with the fixing hole matched with connecting hole.
The beneficial effects of the utility model are:
Improvement has been made in the penetrate direction of the utility model to the structure of intermediate plate anti-loose structure center platen and connecting bolt, the pulling force that connecting bolt is born changes shearing into, the intermediate plate that can prevent a variety of causes from causing loosens phenomenon, all the time keeping clip effectively can follow up, make to ensure anchoring safety and reliability; Structure of the present utility model is also fairly simple simultaneously, installs also very convenient.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the main TV structure schematic diagram of prior art.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1, the locking ground tackle of prestress anchoraging, comprises anchor plate 1, spiral bar 2, work anchor slab 3, intermediate plate 4 and intermediate plate anti-loose structure.
Described anchor plate and spiral bar are all embedded in concrete; Described spiral bar is arranged in the outside of extension 11 in anchor plate, and the right side of anchor plate the right side of horizontal direction (in the figure) is also furnished with the bellows 91 being convenient to prestress wire lashing; Described work anchor slab is positioned at the left side of anchor plate and the anchor slab that works is shaped with some anchor slab holes 31 passed through for prestress wire 9, locates a pair for clamping the intermediate plate of prestress wire in each anchor slab hole; Also intermediate plate can be driven to inside contract in anchor slab hole together when prestress wire moves right, the chucking power that prestress wire is subject to intermediate plate in moving process increases gradually, final intermediate plate tightly will be engaged on prestress wire and (intermediate plate be shaped with the silk tooth of occlusion), form stable clamp position.
Described intermediate plate anti-loose structure is arranged on work anchor slab, comprises pressing plate 5, hollow bolt 6, disc spring 7 and connecting bolt 8; Described pressing plate is positioned on the left of work anchor slab, pressing plate is shaped with some pressing plate screws 51 (corresponding with anchor slab hole); Install a hollow bolt in each pressing plate screw, the end of prestress wire interts in hollow bolt, and simultaneously disc spring to be sleeved on prestress wire and to be positioned between hollow bolt and intermediate plate.
The utility model makes described pressing plate into a steel bushing 58, the surrounding shirt rim 52 of steel bushing, above extends at prestress wire Impact direction (horizontal direction in figure) and covers work anchor slab; This shirt rim is shaped with some connecting holes 53, the outer peripheral face of the anchor slab that simultaneously works is shaped with the fixing hole 32 matched with connecting hole, connecting bolt to insert in connecting hole and fixing hole thus is fixed on by pressing plate on work anchor slab; Because shearing is born perpendicular to the Impact direction of prestress wire in the direction that penetrates of this connecting bolt thus, therefore effectively can ensure intermediate plate anti-loose structure exerting pressure to intermediate plate, prevent the intermediate plate caused by a variety of causes from loosening phenomenon, thus ensure anchoring safety and reliability under low stress values, heavily stressed width dynamic load operating mode.
In addition, the utility model also can be used for the strand tapered anchorage of vertical prestressing bundle lower end, ensures that intermediate plate is to effective clamping of steel strand.
Claims (2)
1. the locking ground tackle of prestress anchoraging, comprise be embedded in anchor plate (1) in concrete and spiral bar (2), to be arranged on the left of anchor plate and be shaped with some anchor slab holes (31) work anchor slab (3), be positioned at anchor slab hole and for the intermediate plate (4) that clamps prestress wire (9) and the intermediate plate anti-loose structure be arranged on work anchor slab; Described intermediate plate anti-loose structure comprises and being positioned at the pressing plate on the left of work anchor slab, the hollow bolt (6) be arranged in pressing plate screw (51), being positioned between hollow bolt and intermediate plate and disc spring (7) for holding out against intermediate plate; It is characterized in that: described pressing plate is a steel bushing (58), the surrounding shirt rim (52) of steel bushing extends and covers work anchor slab on prestress wire Impact direction, pressing plate is fixed on work anchor slab after passing through the connecting hole (53) of shirt rim by some connecting bolts (8), and the axis of connecting bolt is vertical with prestress wire Impact direction.
2. the locking ground tackle of prestress anchoraging according to claim 1, is characterized in that: the outer peripheral face of described work anchor slab is shaped with the fixing hole (32) matched with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605528.7U CN204174840U (en) | 2014-10-20 | 2014-10-20 | The locking ground tackle of prestress anchoraging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420605528.7U CN204174840U (en) | 2014-10-20 | 2014-10-20 | The locking ground tackle of prestress anchoraging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204174840U true CN204174840U (en) | 2015-02-25 |
Family
ID=52563658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420605528.7U Active CN204174840U (en) | 2014-10-20 | 2014-10-20 | The locking ground tackle of prestress anchoraging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204174840U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812256A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | A kind of compound prestress stretching end anchorage |
| CN110042756A (en) * | 2019-04-03 | 2019-07-23 | 中铁大桥局集团有限公司 | Bridge high tower construction method and its construction equipment |
| CN113833208A (en) * | 2021-10-29 | 2021-12-24 | 杭州富锚机械有限公司 | Fast-assembling prestressed anchorage utensil of concrete building |
-
2014
- 2014-10-20 CN CN201420605528.7U patent/CN204174840U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812256A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | A kind of compound prestress stretching end anchorage |
| CN110042756A (en) * | 2019-04-03 | 2019-07-23 | 中铁大桥局集团有限公司 | Bridge high tower construction method and its construction equipment |
| CN113833208A (en) * | 2021-10-29 | 2021-12-24 | 杭州富锚机械有限公司 | Fast-assembling prestressed anchorage utensil of concrete building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |