CN201433513Y - Positioning device for post-tensioned pre-stressing system of track slab - Google Patents
Positioning device for post-tensioned pre-stressing system of track slab Download PDFInfo
- Publication number
- CN201433513Y CN201433513Y CN200920103841XU CN200920103841U CN201433513Y CN 201433513 Y CN201433513 Y CN 201433513Y CN 200920103841X U CN200920103841X U CN 200920103841XU CN 200920103841 U CN200920103841 U CN 200920103841U CN 201433513 Y CN201433513 Y CN 201433513Y
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- China
- Prior art keywords
- anchor
- steel bar
- plate
- cone
- hollow double
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- Expired - Lifetime
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Abstract
The utility model relates to track slab construction field, particularly to a positioning device for the post-tensioned pre-stressing system of a track slab. The positioning device comprises an anchorbacking plate, a pre-stressing steel bar and a hollow double-sided thread screw, wherein external screw threads are formed at the end head of the pre-stressing steel bar; internal screw threads are formed on the inner ring of the center hole of the anchor backing plate; the other end surface of an anchor cone is inserted into the hollow double-sided thread screw; an insertion hole with internal screw threads is formed at the end head of the hollow double-sided thread screw; the tail end of the hollow double-sided thread screw is inserted into and in threaded connection with the center hole ofthe anchor backing plate; and the insertion hole of the hollow double-sided thread screw is in threaded fit with the pre-stressing steel bar extending into the anchor cone. The positioning device hasthe advantages that the problem that the assembly and the disassembly between the anchor backing plate and a mould waste time and labor is solved; the cost is lower; the pre-tensioning construction process of the prestressing steel bar is completed during the positioning of the anchor backing plate; slurry leakage probability caused by insufficient close attaching between the anchor backing plateand an anchor recess is reduced. Therefore, the purposes of increasing construction speed, reducing construction difficulty and cost, and improving work efficiency are achieved.
Description
Technical field
The utility model relates to the track slab construction field, is specially a kind of positioner that adopts the track plate post-tensioned prestressing system of two-sided silk hollow screw pretension prestressed steel bar and location prestressed anchor backing plate.
Background technology
The positioner of traditional track plate post-tensioned prestressing system comprises anchor plate of being close to anchor cone one end face and the prestressed steel bar that passes anchor plate, anchor cone, wherein first effect of anchor plate is as the stress point in the stretching process, and second effect is that prestressed steel bar is played positioning action.Existing anchor plate location is to adopt two M8 screw rods to penetrate template in the anchor cone in the template outside to carry out bolt formula location, so be called bolt formula anchor plate navigation system, its shortcoming is that the anchor plate location and the demoulding of track plate are wasted time and energy, and easily spillage can not guarantee construction quality; And existing prestressed steel bar only depends on anchor plate to position, and its inserting end that is positioned at anchor cone because interior narrow and small being difficult to of operating space of anchor cone constructs, has increased operation easier, and influenced the stretch-draw effect when cutting or reinforcing simultaneously.
Summary of the invention
The utility model exists the anchor plate and the demoulding of track plate to waste time and energy for the positioner that solves existing track plate post-tensioned prestressing system, problems such as easily spillage and prestressed steel bar constructing operation difficulty be big provide the positioner of a kind of track plate post-tensioned prestressing system.
The utility model is to adopt following technical scheme to realize: the positioner of track plate post-tensioned prestressing system, comprise the mesopore that anchor plate is passed in the anchor plate that is connected with anchor cone one end face and termination and stretch into prestressed steel bar in the anchor cone, innovative point of the present utility model is that the prestressed steel bar termination is provided with external screw thread, and the mesopore inner ring of anchor plate is provided with internal thread; This positioner also comprises by the anchor cone other end and inserts two-sided silk hollow screw in it, the one section jack that has internal thread is offered in two-sided silk hollow screw termination, in the mesopore of the terminal insertion of two-sided silk hollow screw anchor plate, and be connected with the anchor plate threaded engagement, the jack of simultaneously two-sided silk hollow screw is connected with the prestressed steel bar threaded engagement that stretches into anchor cone.
The circumference side of described anchor plate is distributed with the installation aperture, when anchor plate is connected with prestressed steel bar and two-sided silk mesopore screw end head, does not stop to stir to realize by insert the installation aperture with probe.
The utility model has used the architectural characteristic of two-sided silk hollow screw dexterously, internal thread pretension prestressing without bondn rod iron, the operating principle of external screw thread positioning anchor backing plate, not only solved between anchor plate and the mould dismounting problem that wastes time and energy, and cost is lower, and also solved the pretension work progress of prestressing without bondn rod iron simultaneously in the anchor plate location, greatly reduce because of anchor plate and the not enough spillage probability that causes of the closely connected performance of anchor recess, reach the quickening speed of application, reduce operation difficulty of construction and cost, the purpose of increasing work efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the Facad structure schematic diagram of anchor plate;
Fig. 3 is the side sectional view of anchor plate;
Fig. 4 is the structural representation of two-sided silk hollow screw;
Among the figure: the 1-anchor cone, the 2-anchor plate, the 3-mesopore, the 4-prestressed steel bar, the 5-external screw thread, the 6-internal thread, the two-sided silk of 7-mesopore screw rod, the 8-jack, 9-installs aperture.
The specific embodiment
The positioner of track plate post-tensioned prestressing system, as shown in Figure 1, comprise the mesopore 3 that anchor plate is passed in the anchor plate 2 that is connected with anchor cone 1 one end faces and termination and stretch into prestressed steel bar 4 in the anchor cone 1, there is external screw thread 5 prestressed steel bar 4 terminations, shown in Fig. 2,3, mesopore 3 inner rings of anchor plate 2 are provided with internal thread 6, and the circumference side of anchor plate 2 is distributed with 4 aperture 9 is installed, and diameter is 6mm; As shown in Figure 4, this positioner also comprises by anchor cone 1 other end and inserts two-sided silk hollow screw 7 in it, the one section jack 8 that has internal thread is offered in two-sided silk hollow screw 7 terminations, in the mesopore 3 of two-sided silk hollow screw 7 terminal insertion anchor plates, and be connected with anchor plate 2 threaded engagement, the jack 8 of simultaneously two-sided silk hollow screw is connected with prestressed steel bar 4 threaded engagement that stretch into anchor cone.
During concrete the use, at first the railway plate die matched moulds is preceding with the anchor recess position installation in position of prestressed steel bar along anchor cone, again anchor plate is put on along the prestressed steel bar axis direction, next railway plate die matched moulds, the preformed hole of prestressing without bondn rod iron along anchor cone passed, carry out the prestressing without bondn rod iron and carry out pretension construction, in the anchor cone outside of mould two-sided silk hollow screw termination and the jack that has an internal thread and the external screw thread at prestressed steel bar two ends gone up simultaneously and thread tighten.Behind the prestressed steel bar pretension, can observe and have the interior 1cm of mesopore that anchor plate is stretched in externally threaded two-sided silk hollow screw termination, the anchor plate that to put on is screwed on the two-sided silk hollow screw to template outside derotation along the prestressed steel bar axis direction then, is screwed to and checks anchor plate and closely connected seamless the getting final product of anchor cone end face.The silk process is by four φ 6 that insert anchor plate circumference side with probe aperture to be installed not stop to stir to realize on the anchor plate.
Claims (2)
1, the positioner of a kind of track plate post-tensioned prestressing system, comprise the mesopore (3) that anchor plate is passed in the anchor plate (2) that is connected with anchor cone (1) one end face and termination and stretch into prestressed steel bar (4) in the anchor cone (1), it is characterized in that prestressed steel bar (4) termination is provided with external screw thread (5), mesopore (3) inner ring of anchor plate (2) is provided with internal thread (6); This positioner also comprises by anchor cone (1) other end and inserts two-sided silk hollow screw (7) in it, the one section jack (8) that has internal thread is offered in two-sided silk hollow screw (7) termination, in the mesopore (3) of the terminal insertion of two-sided silk hollow screw (7) anchor plate, and be connected with anchor plate (2) threaded engagement, the jack (8) of simultaneously two-sided silk hollow screw is connected with the prestressed steel bar that stretches into anchor cone (4) threaded engagement.
2, the positioner of track plate post-tensioned prestressing according to claim 1 system, the circumference side that it is characterized in that anchor plate (2) is distributed with installs aperture (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920103841XU CN201433513Y (en) | 2009-07-20 | 2009-07-20 | Positioning device for post-tensioned pre-stressing system of track slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920103841XU CN201433513Y (en) | 2009-07-20 | 2009-07-20 | Positioning device for post-tensioned pre-stressing system of track slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433513Y true CN201433513Y (en) | 2010-03-31 |
Family
ID=42052323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920103841XU Expired - Lifetime CN201433513Y (en) | 2009-07-20 | 2009-07-20 | Positioning device for post-tensioned pre-stressing system of track slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433513Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415491A (en) * | 2015-12-15 | 2016-03-23 | 天津银龙预应力材料股份有限公司 | Fixed-end tensioning piece and fixed-end tensioning machine |
| CN109489702A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | A kind of pre-pressing structure and assemble method of sensor |
| CN110557958A (en) * | 2018-04-03 | 2019-12-10 | 旭混凝土工业株式会社 | Connector and method for manufacturing box culvert |
-
2009
- 2009-07-20 CN CN200920103841XU patent/CN201433513Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415491A (en) * | 2015-12-15 | 2016-03-23 | 天津银龙预应力材料股份有限公司 | Fixed-end tensioning piece and fixed-end tensioning machine |
| CN105415491B (en) * | 2015-12-15 | 2024-04-16 | 天津银龙预应力材料股份有限公司 | Fixed end tensioning piece and tensioning end tensioning piece |
| CN110557958A (en) * | 2018-04-03 | 2019-12-10 | 旭混凝土工业株式会社 | Connector and method for manufacturing box culvert |
| CN109489702A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | A kind of pre-pressing structure and assemble method of sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |