CN203626265U - Pre-stress steel strand suspension tensioning stopper - Google Patents
Pre-stress steel strand suspension tensioning stopper Download PDFInfo
- Publication number
- CN203626265U CN203626265U CN201320820161.6U CN201320820161U CN203626265U CN 203626265 U CN203626265 U CN 203626265U CN 201320820161 U CN201320820161 U CN 201320820161U CN 203626265 U CN203626265 U CN 203626265U
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- steel strand
- pressing plate
- plate
- spacing pressing
- clamping piece
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Abstract
The utility model discloses a pre-stress steel strand suspension tensioning stopper, wherein the pre-stress steel strand suspension tensioning stopper comprises a front support pin, a positioning plate and a spacing pressure plate; the spacing pressure plate and the positioning plate are connected through a screw rod; the front support pin is set at the outer side of the spacing pressure plate; and an ear plate of the spacing pressure plate is set inside a sink groove of the front support pin. By using the pre-stress steel strand suspension tensioning stopper provided by the utility model, the work clamping piece is under suspension state in the process of tensioning, therefore, damage to the work clamping piece because of multitime bearing-and-relaxing can be avoided; at the same time, situation of influencing the bearing led by that the clamping piece cannot bite the steel strand normally because the steel strand surface layer or the protection coating fills the work clamping piece thread due to multitime clamping is avoided; and construction quality and safety performance are improved.
Description
Technical field
The utility model relates to the prestressed stretch-draw stop that a kind of building trade is used, and is specifically related to a kind of prestress wire suspension stretch-draw stop.
Background technology
Before engineering structures part bears external applied load, to the steel strand in tension module, apply bending resistance and the rigidity of compressive pre-stress raising member, postpone the time that crack occurs, increase the durability of member.The steel strand that use are at present for extending its durability, and often there are metal or nonmetallic coating or coating in surface, as zinc-plated, be coated with epoxy resin etc.Prestress wire is in stretch-draw anchor work progress, guy of twisted steel cable is longer, and general jack tension piston stroke is only 200mm, and when practical operation, range is less than 180mm, need repeatedly switch stroke grading tension, work clip sheet also need to bear repeatedly stressed and loosen switching in stroke.So repeatedly stressed loosening again easily makes work clip sheet impaired, and steel strand surface coating is after stinging tightly by work clip sheet, easily stockpile in work clip sheet silk mouth, cause can not normally stinging tight steel strand in work clip sheet follow-up work and affect stressed, when serious, even there is stripped thread phenomenon, affect construction quality and construction safety is threatened.
Utility model content
The utility model object is for above-mentioned deficiency, and a kind of prestressing force suspension stretch-draw stop is provided, and makes steel strand in the time that elongation is large, adopt suspension stretch-draw, guarantees the stressed reliable of work clip sheet, guarantees construction quality and safety.
The technical solution adopted in the utility model is: a kind of prestress wire suspension stretch-draw stop, comprise front spike, location-plate and spacing pressing plate, spacing pressing plate is connected by screw rod with location-plate, front spike is positioned at spacing pressing plate outside, and the otic placode of spacing pressing plate is positioned at the deep gouge of front spike.
Described location-plate is an annular slab, evenly lays screw.
Described front spike is cylindrical, and bottom of cylinder is provided with position-limited edge, and deep gouge is evenly distributed in cylinder top.
Described spacing pressing plate is a circular slab, and surrounding is evenly laid otic placode, and otic placode is provided with screw, and spacing pressing plate center is provided with honeycomb hole.
The beneficial effects of the utility model:
1. the design of deep gouge in front spike, can the movement in front spike at the spacing pressing plate of external control, can regulate the position of spacing pressing plate at any time according to actual conditions, has improved the convenience of operation.
2. in stop, spacing pressing plate can regulate by screw rod, in the deep gouge of front spike, move, the feature that spacing press plate position is adjustable, makes in stretching process, guarantees that work clip sheet is in suspended state, do not participate in clamping stressed, also can from anchor hole, not deviate to affect final anchoring, in the time of final anchoring, spacing pressing plate can be by disposable work clip sheet even compression, reduce amount of recovery, improved construction quality.
3. the feature of work clip sheet in suspended state in stretching process, can avoid work clip sheet to loosen again because of repeatedly stressed cause impaired, also avoided steel strand surface coating to amass full work clip sheet silk mouth because repeatedly clamping simultaneously, finally cause intermediate plate normally not sting tight steel strand and affect stressed situation appearance, having improved working security.
Accompanying drawing explanation
Fig. 1 is stop structural representation.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is the structural representation of front spike.
Fig. 4 is that the B-B of Fig. 3 is to view.
Fig. 5 is the structural representation of location-plate.
Fig. 6 is that the C-C of Fig. 5 is to view.
Fig. 7 is the structural representation of spacing pressing plate.
Fig. 8 is that the D-D of Fig. 7 is to view.
Fig. 9 is suspension stretch-draw stop work schematic diagram.
In figure: the 1-anchor slab of working; 2-work clip sheet; 3-stop; 4-jack; 5-ring-shaped pressuring plate; Moveable anchor before 6-; 7-anchor pressing plate; 8-back lag; 9-spring; 10-tool clamping piece; Moveable anchor after 11-; 12-steel strand; Spike before 31-; 311-deep gouge; 312-position-limited edge; 32-location-plate; 321-screw; The spacing pressing plate of 33-; 331-through hole; 332-screw; 333-otic placode; 34-screw rod.
The specific embodiment
As shown in Figure 1 and Figure 2, prestress wire suspension stretch-draw stop, comprises front spike 31, location-plate 32 and spacing pressing plate 33.
As shown in Figure 3, Figure 4, front spike 31 is cylindrical, is provided with the position-limited edge 312 matching with the anchor slab 1 of working at bottom of cylinder, and is provided with uniformly 4 deep gouges 311, and front spike 31 end faces are smooth plane, matches with jack 4 bases.
As shown in Figure 5, Figure 6, location-plate 32 is doughnut-shaped steel plates, and internal diameter is slightly larger than work anchor slab 1, is evenly distributed with 4 screws 321.
As shown in Figure 7, Figure 8, spacing pressing plate 33 is circular steel plates that a diameter is less than front spike 31 internal diameters, and surrounding is evenly laid with 4 otic placodes 333, and otic placode is provided with screw 332, and can with location-plate on screw 321 match.Install the honeycomb hole 331 corresponding with the anchor slab 1 of working at spacing pressing plate 33 centre bits, can make steel strand 12 pass, and be less than intermediate plate diameter.
As shown in Figure 9, before using, location-plate 32 is pre-fixed on work anchor slab 1 by screw, spacing pressing plate 33 is placed in work clip sheet 2 end faces through steel strand 12, is connected by screw rod 34 with location-plate 32.Front spike 31 is placed on work anchor slab 1 end face, spacing pressing plate outside, and position-limited edge 312 can prevent front spike 31 occurrence positions skews.The otic placode 333 of spacing pressing plate 33 enters front spike 31 deep gouges 311, and spacing pressing plate 33 can move up and down in deep gouge 311 scopes.Adjusting screw(rod) 34 just can be controlled the distance of spacing pressing plate 33 and work clip sheet 2 end faces, makes work clip sheet 2 can, in suspended state, can not leave again anchor hole in the time of each stretch-draw.
When use, jack 4 pistons rise cylinder,, under acting in conjunction, sting tight steel strand 12 and carry out stretch-draw at front moveable anchor 6 and tool clamping piece 10.While being stretched to jack range, stop rising cylinder, slow contracting cylinder after record tension data, the stressed of front moveable anchor 6 is transformed on rear moveable anchor 11.Due to the effect of spring 9, the intermediate plate on moveable anchor is all the time in impaction state, the stressed work clip sheet 2 early than suspended state.Repeat above stretching process according to stretch-draw control program, in the time carrying out the stretch-draw of last stroke, tool clamping piece 10 after removing on moveable anchor 11, after being stretched to 100%, by screwing screw rod 34, regulate the height of spacing pressing plate 33, by spacing pressing plate 33, work clip sheet 2 is compressed, hold lotus after 2 minutes, jack 4 release anchorings, complete stretch-draw.
Claims (4)
1. a prestress wire suspension stretch-draw stop, it is characterized in that: comprise front spike (31), location-plate (32) and spacing pressing plate (33), spacing pressing plate (33) is connected by screw rod (34) with location-plate (32), front spike (31) is positioned at spacing pressing plate outside, and the otic placode (333) of spacing pressing plate (33) is positioned at the deep gouge (311) of front spike (31).
2. according to a kind of prestress wire suspension stretch-draw stop described in claim 1, it is characterized in that: described location-plate (32) is an annular slab, evenly lay screw (321).
3. according to a kind of prestress wire suspension stretch-draw stop described in claim 1, it is characterized in that: described front spike (31) is cylindrical, bottom of cylinder is provided with position-limited edge (312), and deep gouge (311) is evenly distributed in cylinder top.
4. according to a kind of prestress wire suspension stretch-draw stop described in claim 1, it is characterized in that: described spacing pressing plate (33) is a circular slab, surrounding is evenly laid otic placode (333), otic placode is provided with screw (332), and spacing pressing plate (33) center is provided with honeycomb hole (331).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320820161.6U CN203626265U (en) | 2013-12-14 | 2013-12-14 | Pre-stress steel strand suspension tensioning stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320820161.6U CN203626265U (en) | 2013-12-14 | 2013-12-14 | Pre-stress steel strand suspension tensioning stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626265U true CN203626265U (en) | 2014-06-04 |
Family
ID=50812756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320820161.6U Expired - Fee Related CN203626265U (en) | 2013-12-14 | 2013-12-14 | Pre-stress steel strand suspension tensioning stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777675A (en) * | 2019-12-05 | 2020-02-11 | 黑龙江省公路勘察设计院 | Bridge prestress tension fixing device |
| CN111140019A (en) * | 2020-01-15 | 2020-05-12 | 柳州市桥厦工程有限公司 | Intelligent control's suspension tensioning equipment |
-
2013
- 2013-12-14 CN CN201320820161.6U patent/CN203626265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777675A (en) * | 2019-12-05 | 2020-02-11 | 黑龙江省公路勘察设计院 | Bridge prestress tension fixing device |
| CN111140019A (en) * | 2020-01-15 | 2020-05-12 | 柳州市桥厦工程有限公司 | Intelligent control's suspension tensioning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |