CN204199707U - Self-locking presstressed reinforcing steel extractor - Google Patents
Self-locking presstressed reinforcing steel extractor Download PDFInfo
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- CN204199707U CN204199707U CN201420649847.8U CN201420649847U CN204199707U CN 204199707 U CN204199707 U CN 204199707U CN 201420649847 U CN201420649847 U CN 201420649847U CN 204199707 U CN204199707 U CN 204199707U
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Abstract
The utility model relates to a kind of self-locking presstressed reinforcing steel extractor, it is characterized in that: comprise main four block plates, four triangle terminations, clasp, spring leaf, four traction steel wires, loose collar and retainer rings; Wherein, the upper end of four block plates is fixedly mounted on the inner surface of retainer ring, steel plate inside wall is provided with several clasp along its length, fixing bad below is set with loose collar, steel plate elongatedness direction is provided with mounting groove, be provided with traction steel wire in mounting groove, the upper end of traction steel wire is fixedly mounted on loose collar; The bottom of above-mentioned each steel plate is equipped with triangle termination, is provided with spring leaf draw-in groove between described triangle termination and the bottom of steel plate, is provided with the spring leaf of bending in described spring leaf draw-in groove, and described spring leaf makes above-mentioned triangle termination inwardly close up.The advantages such as the utility model efficiently solves the problem that in self-locking prestressed anchor fixing structure, presstressed reinforcing steel cannot take out after inserting, and in addition, also has structure simple, easy to use.
Description
Technical field
The utility model belongs to architectural hardware technical field, particularly relates to a kind of self-locking presstressed reinforcing steel extractor.
Background technology
Precast Concrete Segmental Bridges construction method is the construction method just grown up in nearly 40 years, Precast Concrete Segmental Bridges principle is the pressure applied by prestressing tendon on concrete segment, sections Contact face is fitted tightly, form overall structure shared load, its advantage has: 1. prefabricate, and construction quality is good; 2. speed of application is fast, and the duration is short; 3. easy construction, little to surrounding environment influence.
There is a kind of self-locking prestressed anchor fixing structure being applicable to Precast Concrete Segmental Bridges construction at present, comprise built-in fitting and the extruding cable body of isolating construction, built-in fitting comprises rear protective cover, multi-clove type slide block, elastic body, anchor plate, spiral bar and built-in pipe, extruding cable body comprises guide head, anchoring cartridge and presstressed reinforcing steel, and presstressed reinforcing steel is by anchoring cartridge anchoring, and there is guide head on its top, vertical prestressing anchoring system with this structure comprises anchoring lower ends unit with self-locking prestressed anchor fixing structure and upper end anchoring unit, under using state, lower anchor plate is combined into one by bolt and rear protective cover, and and spiral bar, built-in pipe is embedded in precast concrete block together, extruding cable body has one end of guide head to penetrate from built-in pipe, after multi-clove type slide block, under elastic body effect, multi-clove type slide block gathers the anchoring cartridge blocking extruding cable body, make presstressed reinforcing steel pastly can not bounce back thus form the anchoring lower ends unit being with slide block type self-locking prestressed anchor fixing structure.
The problem that after this self-locking prestressed anchor fixing structure exists locking, presstressed reinforcing steel cannot take out, for the presstressed reinforcing steel that some are mistakenly inserted because ignoring presstressed reinforcing steel model or working procedure problem, if and the situation of discovery presstressed reinforcing steel defect or concrete prefabricated element defect does not take out presstressed reinforcing steel after inserting, whole prefabricated units and presstressed reinforcing steel all cannot re-use, and will certainly cause certain waste.
Summary of the invention
The utility model for solve in known technology the technical problem that exists and provide a kind of structure simple, easy to use, solve the self-locking presstressed reinforcing steel extractor that in self-locking prestressed anchor fixing structure, presstressed reinforcing steel cannot take out after inserting.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of self-locking presstressed reinforcing steel extractor, is characterized in that: comprise main four block plates, four triangle terminations, clasp, spring leaf, four traction steel wires, loose collar and retainer rings;
Wherein, the upper end of described four block plates is fixedly mounted on the inner surface of retainer ring,
The inside wall of steel plate is provided with several clasp along its length, described fixing bad below is set with loose collar, described steel plate elongatedness direction is provided with mounting groove, is provided with traction steel wire in described mounting groove, and the upper end of described traction steel wire is fixedly mounted on loose collar; The bottom of above-mentioned each steel plate is equipped with triangle termination, spring leaf draw-in groove is provided with between described triangle termination and the bottom of steel plate, the spring leaf of bending is installed in described spring leaf draw-in groove, described spring leaf makes above-mentioned triangle termination inwardly close up, and the outside of described triangle termination connects above-mentioned traction steel wire.
The utility model can also adopt following technical measures:
Described clasp adopts split-type structural, and mainly comprise two halfbodies, two halfbodies are connected by clip ring joint plug-in mounting.
The hemispherical projections for stationary spring is provided with in described spring leaf draw-in groove.
The both sides of described loose collar are provided with handle.
The advantage that the utility model has and good effect are: because the utility model adopts technique scheme, efficiently solve the problem that in self-locking prestressed anchor fixing structure, presstressed reinforcing steel cannot take out after inserting, for three-clove style self-locking anchor structure, in order to prevent, trigonocephalia is most advanced and sophisticated inserts three-clove style slide block gap place just, effect is taken out in impact, extractor have employed fFour piece type structure, can ensure that each slide block place all has a triangle termination at least to extrude slide block.Prefabricated units prestress anchoraging system that the utility model is perfect, avoids unnecessary waste of material and engineering loss, effectively facilitates green construction, environmental protection construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model three-dimensional exploded view.
In figure: 1, steel plate; 1-1, mounting groove; 2, triangle termination; 3, clasp; 3-1, clip ring joint; 4, spring leaf; 5, traction steel wire; 6, loose collar; 6-1, handle; 7, retainer ring; 8, spring leaf draw-in groove.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a kind of self-locking presstressed reinforcing steel extractor, comprise main four block plates, 1, four triangle terminations 2, clasp 3, spring leaf 4, four traction steel wires 5, loose collar 6 and retainer rings 7;
Wherein, the upper end of described four block plates is fixedly mounted on the inner surface of retainer ring 7, and the length of steel plate can ensure that extractor is inserted into the guide head of presstressed reinforcing steel, ensures the operating space of loose collar, retainer ring simultaneously.
The inside wall of steel plate is provided with the clasp 3 of stability and intensity between several raising four steel plates along its length, and the number of clasp is determined according to the length of steel plate; Described clasp adopts split-type structural, mainly comprises two halfbodies, and two halfbodies are connected by clip ring joint 3-1 plug-in mounting.
The below of described fixing evil idea 7 is set with loose collar 6, for improving convenience, is provided with handle 6-1 in the both sides of described loose collar.Described steel plate elongatedness direction is provided with mounting groove 1-1, is provided with traction steel wire 5 in described mounting groove, and the upper end of described traction steel wire is fixedly mounted on loose collar 6; The bottom of above-mentioned each steel plate is equipped with triangle termination 2, spring leaf draw-in groove 8 is provided with between described triangle termination and the bottom of steel plate, the spring leaf 4 of bending is installed in described spring leaf draw-in groove, described spring leaf makes above-mentioned triangle termination inwardly close up, and the outside of described triangle termination connects above-mentioned traction steel wire.
Be provided with the hemispherical projections for stationary spring in described spring leaf draw-in groove, each spring leaf opened four elliptical apertures.
In said structure, spring leaf by external force when be bending state, make trigonocephalia and steel plate angled, extractor front end entirety is tightened up in its natural state, to ensure that extractor is close to presstressed reinforcing steel surface penetrating presstressed reinforcing steel rear tip, and then to be inserted into slide position at extractor be can squeeze slide block smoothly, be inserted into guide head root.Each spring leaf is opened four elliptical apertures, by entangling hemispherical projections and draw-in groove by spring leaf together with triangle termination, Interal fixation, elliptical aperture can ensure to pull loose collar simultaneously, when triangle termination is opened, and the trickle changing of the relative positions of spring leaf and hemispherical projections.Local, centre position, spring leaf two ends tilts, and makes the spring leaf when extractor is assembled can overcome hemispheroidal stop, is easy to insert.
Finer wire passes from perforate in the middle part of triangle termination, and be positioned in the mounting groove of triangle termination and steel plate, the other end is fixed on loose collar.In order to reduce, extractor triangle termination struts, reply action to the wearing and tearing of finer wire, triangle termination and fluting steel plate fluting end can adopt the mode of angle rounding.
Concrete mounting method penetrates in extractor by presstressed reinforcing steel, extractor is inserted presstressed reinforcing steel pipeline, until the centrum that triangle termination, extractor end is formed is inserted into along presstressed reinforcing steel in the space of three-clove style slide block and presstressed reinforcing steel, the triangle termination of extractor end struts slide block while inserting downwards, until tip, triangle termination touches presstressed reinforcing steel guider, extractor cannot continue to insert, now while pinning taking-up top retainer ring, pull loose collar, loose collar drives the traction steel wire in steel plate mounting groove, under the pulling of traction steel wire, extractor triangle termination struts, to tip, termination touching built-in pipe tube wall, now upwards pull presstressed reinforcing steel, drive presstressed reinforcing steel guider upward sliding in extractor triangle termination, because extractor has strutted three-clove style slide block, continue to pull presstressed reinforcing steel extractor and presstressed reinforcing steel together can be taken out.
The utility model efficiently solves the problem that in self-locking prestressed anchor fixing structure, presstressed reinforcing steel cannot take out after inserting, for three-clove style self-locking anchor structure, in order to prevent, trigonocephalia is most advanced and sophisticated inserts three-clove style slide block gap place just, effect is taken out in impact, extractor have employed fFour piece type structure, can ensure that each slide block place all has a triangle termination at least to extrude slide block.Prefabricated units prestress anchoraging system that the utility model is perfect, avoids unnecessary waste of material and engineering loss, effectively facilitates green construction, environmental protection construction.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (4)
1. a self-locking presstressed reinforcing steel extractor, is characterized in that: comprise main four block plates, four triangle terminations, clasp, spring leaf, four traction steel wires, loose collar and retainer rings;
Wherein, the upper end of described four block plates is fixedly mounted on the inner surface of retainer ring,
The inside wall of steel plate is provided with several clasp along its length, described fixing bad below is set with loose collar, described steel plate elongatedness direction is provided with mounting groove, is provided with traction steel wire in described mounting groove, and the upper end of described traction steel wire is fixedly mounted on loose collar; The bottom of above-mentioned each steel plate is equipped with triangle termination, spring leaf draw-in groove is provided with between described triangle termination and the bottom of steel plate, the spring leaf of bending is installed in described spring leaf draw-in groove, described spring leaf makes above-mentioned triangle termination inwardly close up, and the outside of described triangle termination connects above-mentioned traction steel wire.
2. self-locking presstressed reinforcing steel extractor according to claim 1, is characterized in that: described clasp adopts split-type structural, and mainly comprise two halfbodies, two halfbodies are connected by clip ring joint plug-in mounting.
3. self-locking presstressed reinforcing steel extractor according to claim 1, is characterized in that: be provided with the hemispherical projections for stationary spring in described spring leaf draw-in groove.
4. self-locking presstressed reinforcing steel extractor according to claim 1, is characterized in that: the both sides of described loose collar are provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649847.8U CN204199707U (en) | 2014-11-03 | 2014-11-03 | Self-locking presstressed reinforcing steel extractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649847.8U CN204199707U (en) | 2014-11-03 | 2014-11-03 | Self-locking presstressed reinforcing steel extractor |
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| CN204199707U true CN204199707U (en) | 2015-03-11 |
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| CN201420649847.8U Active CN204199707U (en) | 2014-11-03 | 2014-11-03 | Self-locking presstressed reinforcing steel extractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273360A (en) * | 2019-06-15 | 2019-09-24 | 江阴法尔胜住电新材料有限公司 | A kind of self-locking prestress anchorage system and construction method |
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2014
- 2014-11-03 CN CN201420649847.8U patent/CN204199707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273360A (en) * | 2019-06-15 | 2019-09-24 | 江阴法尔胜住电新材料有限公司 | A kind of self-locking prestress anchorage system and construction method |
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| GR01 | Patent grant |