CN215368262U - Integral flexible anti-loosening cover plate for prestressed steel strand stay cable clamping piece - Google Patents
Integral flexible anti-loosening cover plate for prestressed steel strand stay cable clamping piece Download PDFInfo
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- CN215368262U CN215368262U CN202121565034.7U CN202121565034U CN215368262U CN 215368262 U CN215368262 U CN 215368262U CN 202121565034 U CN202121565034 U CN 202121565034U CN 215368262 U CN215368262 U CN 215368262U
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- prestressed steel
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Abstract
The utility model discloses an integral flexible anti-loosening cover plate for a prestressed steel strand inhaul cable clamping piece, which comprises an anchor plate and a cover plate, wherein the anchor plate is detachably connected with the cover plate, and a gap is reserved between the anchor plate and the cover plate; one side of the anchor plate close to the cover plate is spliced with a clamping assembly, and the prestressed steel strand sequentially penetrates through the cover plate, the clamping assembly and the anchor plate; an inner spring is arranged between the clamping assembly and the cover plate, the inner spring is sleeved on the prestressed steel strand, and two ends of the inner spring are respectively abutted against the clamping assembly and the cover plate. The utility model can not only push the clamping piece tightly in real time by compressing the inner spring, avoid the problem that the conventional rigid anti-loosening device can not automatically compensate when being loosened accidentally, but also complete the functions of positioning the inner spring and centering the cover plate by utilizing the steel strand, does not need a specially-made positioning component, and has convenient processing and low manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of civil engineering, in particular to an integral flexible anti-loosening cover plate for a prestressed steel strand inhaul cable clamping piece.
Background
The clip group anchor is a common anchoring form of a guy cable, and utilizes the friction force between a clip and a prestressed beam to wedge a conical clip into an anchor plate through the retraction of the prestressed beam, and then utilizes the conicity of the anchor plate and the clip to enable the clip to generate great clamping force and biting force on a steel strand under the action of tensile force to realize the anchoring of the prestressed beam. Because dynamic load effect such as car load, wind-load, the structure inevitably is in the vibration state for a long time, and this makes the prestressing tendons can't provide lasting pulling force for the toper clamping piece, leads to the clamping-force and the bite-force of toper clamping piece to the steel strand wires to diminish, and then arouses the not hard up problem of clamping piece, still has potential safety hazards such as anchor that takes off when influencing the anchor effect.
At present, a rigid anti-loosening measure is usually adopted, and the clamping piece is tightly propped through the hollow bolt and the cover plate to prevent the clamping piece from loosening. The biggest disadvantage of this rigid anti-loosening solution is that the clamping piece may produce unfavorable nicks to the steel strand due to excessive tightening force, even causing wire breakage, and secondly, if the hollow bolt corresponding to a certain clamping piece loosens, it cannot automatically compensate. For the aspect of the flexible clip loosening prevention technology, two main forms are provided: one is to process the cover plate, thicken the cover plate and open the hole to accommodate the inner spring; the other is to thicken the anchor plate and enlarge the anchor hole to accommodate the inner spring. However, both of these forms require the manufacture of specific anchors, which are complicated and expensive to manufacture, and which are currently in less practical use, and there is a need for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an integral flexible anti-loosening cover plate for a prestressed steel strand inhaul cable clamping piece, and aims to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an integral flexible anti-loosening cover plate for a prestressed steel strand inhaul cable clamping piece, which comprises an anchor plate and a cover plate, wherein the anchor plate is detachably connected with the cover plate, and a gap is reserved between the anchor plate and the cover plate; a clamping assembly is inserted into one side of the anchor plate close to the cover plate, and the prestressed steel strand sequentially penetrates through the cover plate, the clamping assembly and the anchor plate; an inner spring is arranged between the clamping assembly and the cover plate, the inner spring is sleeved on the prestressed steel strand, and two ends of the inner spring are respectively abutted to the clamping assembly and the cover plate.
Preferably, an anchor plate anchor hole is formed in the anchor plate, the anchor plate anchor hole is conical, the wide-mouth end of the anchor plate anchor hole is close to the cover plate, the prestressed steel strand penetrates through the anchor plate anchor hole, and the clamping assembly is connected with the anchor plate in an inserting mode through the anchor plate anchor hole.
Preferably, the clamping assembly is a tapered sleeve composed of a plurality of clamping pieces, the taper of the tapered sleeve is matched with the taper of the anchor hole of the anchor plate, and the prestressed steel strand penetrates through the tapered sleeve.
Preferably, the cover plate is provided with a cover plate anchor hole corresponding to the anchor hole of the anchor plate, the prestressed steel strand penetrates through the cover plate anchor hole, and the aperture of the cover plate anchor hole is 16-17 mm.
Preferably, the inner spring is a flat head spring, and the inner diameter of the flat head spring is 16-17 mm.
Preferably, a plurality of apron fixing bolt hole has been seted up to apron limit portion circumference equidistance, the anchor slab is close to one side of apron seted up with the corresponding anchor slab fixing bolt hole of apron fixing bolt hole, the apron with the anchor slab passes through fixing bolt and can dismantle the connection.
Preferably, the cover plate and the anchor plate are both round steel plates.
The utility model discloses the following technical effects:
1. the utility model is based on the existing common anchorage device, only carries out simple processing of fixing bolt holes on the existing anchorage device, and has convenient processing and low manufacturing cost.
2. The utility model utilizes the steel strand to complete the functions of positioning the inner spring and centering the cover plate, does not need to manufacture special positioning clamping grooves and other structures, and is simple and convenient to process.
3. The clamping piece can be tightly pushed in real time by compressing the inner spring, so that the problem that the conventional rigid anti-loosening device cannot automatically compensate when accidentally loosened is solved; and the problem of wire breakage caused by the fact that the clamping piece nicks the steel strand due to overlarge jacking force applied by the rigid anti-loosening device can be effectively avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of an integrated flexible anti-loosening cover plate for a prestressed steel strand stay cable clip according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is an isometric view of the anchor plate mated with the clip of the second embodiment;
FIG. 5 is a plan view of the anchor plate according to the second embodiment;
FIG. 6 is a cross-sectional view of the connection between the anchor plate and the clip according to the second embodiment;
wherein, 1 is fixing bolt, 2 is prestressing steel strand wires, 3 is the apron, 4 is anchor slab fixing bolt hole, 5 is the inner spring, 6 is the clamping piece, 7 is the anchor slab, 8 is the apron fixing bolt hole, 10 is the slider, 11 is the spout.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1-3, the utility model provides an integrated flexible anti-loosening cover plate for a prestressed steel strand stay cable clamping piece, which comprises an anchor plate 7 and a cover plate 3, wherein the anchor plate 7 is detachably connected with the cover plate 3, and a gap is reserved between the anchor plate 7 and the cover plate 3; a clamping assembly is inserted into one side of the anchor plate 7 close to the cover plate 3, and the prestressed steel strand 2 sequentially penetrates through the cover plate 3, the clamping assembly and the anchor plate 7; an inner spring 5 is arranged between the clamping assembly and the cover plate 3, the inner spring 5 is sleeved on the prestress steel strand 2, and two ends of the inner spring 5 are respectively abutted against the clamping assembly and the cover plate 3.
Furthermore, an anchor plate anchor hole is formed in the anchor plate 7 and is conical, the wide opening end of the anchor plate anchor hole is close to the cover plate 3, the prestressed steel strand 2 penetrates through the anchor plate 7 through the anchor plate anchor hole, and the clamping assembly is connected with the anchor plate 7 in an inserting mode through the anchor plate anchor hole.
Furthermore, the clamping assembly is a conical sleeve consisting of a plurality of clamping pieces 6, the taper of the conical sleeve is matched with the taper of the anchor hole of the anchor plate, and the prestressed steel strand 2 penetrates through the conical sleeve. The compressed inner spring 5 can push the clamping piece 6 tightly in real time, so that the problem that the conventional rigid anti-loosening device cannot automatically compensate when accidentally loosened is solved; and the problem of wire breakage caused by the fact that the clamping piece 6 nicks the steel strand due to overlarge jacking force applied by the rigid anti-loosening device can be effectively avoided, and the reliability of the device is greatly improved.
Furthermore, a cover plate anchor hole corresponding to the anchor hole of the anchor plate is formed in the cover plate 3, the prestressed steel strand 2 penetrates through the cover plate 3 through the cover plate anchor hole, and the aperture of the cover plate anchor hole is 16-17 mm.
Further, the inner spring 5 is a flat head spring, and the inner diameter of the flat head spring is 16-17 mm. The flat head spring is adopted as the inner spring 5, and the clamping piece 6 can be prevented from being dislocated due to the structure of the inner spring 5.
Further, a plurality of cover plate fixing bolt holes 8 are formed in the periphery of the edge portion of the cover plate 3 at equal intervals, one side, close to the cover plate 3, of the anchor plate 7 is provided with anchor plate fixing bolt holes 4 corresponding to the cover plate fixing bolt holes 8, and the cover plate 3 and the anchor plate 7 are detachably connected through the fixing bolts 1.
Further, the cover plate 3 and the anchor plate 7 are both round steel plates.
The specific implementation mode is as follows:
this application adopts current anchor slab 7 to set up anchor slab fixing bolt hole 4 through simple and easy processing on anchor slab 7, chooses for use the circular steel sheet the same with anchor slab 7 size as apron 3, and the thickness of apron 3 is less than the thickness of anchor slab 7, sets up the apron anchor eye on apron 3 through processing.
After the prestressed steel strand 2 is threaded, an anchor plate 7 is installed, the clamping piece 6 is wedged into an anchor hole of the anchor plate to clamp the prestressed steel strand 2, and then the jack is tensioned according to the conventional steps. And after tensioning is finished, the jack is dismantled, the inner spring 5 and the cover plate 3 are sequentially sleeved on the prestressed steel strand 2, and the inner spring 5 is fixed and the cover plate 3 is positioned through the prestressed steel strand 2.
The fixing bolt 1 is screwed into the cover plate fixing bolt hole 8 and the anchor plate fixing bolt hole 4 in sequence, the inner spring 5 is compressed, and the cover plate 3, the inner spring 5, the clamping piece 6 and the anchor plate 7 are connected into a whole under the action of the fixing bolt 1 and the prestressed steel strand 2 to form a vertical face closing device.
As shown in fig. 1, under normal working conditions, the inner spring 5 will press the clip 6 under the pressure of the fixing bolt 1 and the cover plate 3 to meet the requirement of the clip 6 for anti-loosening.
When the clamping piece 6 needs to be temporarily detached, the fixing bolt 1 is screwed out of the anchor plate fixing bolt hole 4, at this time, the inner spring 5 does not press the clamping piece 6, and the anchor detaching operation can be normally performed, and the specific operation process is not described in detail herein.
Example two
As shown in fig. 4-6, the difference between the second embodiment and the first embodiment is that the clamping assembly is a tapered sleeve composed of four clamping pieces 6, the taper of the tapered sleeve is matched with the taper of the anchor hole of the anchor plate, and the prestressed steel strand 2 passes through the tapered sleeve.
Further, the clamping piece 6 comprises a conical section and a vertical section, the vertical section is located above the conical section, and the top end of the vertical section is abutted to one end of the inner spring 5.
Furthermore, the inner side of the conical section of the clamping piece 6 is fixedly provided with an anti-skid block, the cross section of the anti-skid block is in the shape of a right-angled triangle, and the tip of the right-angled triangle faces the narrow opening end of the anchor hole of the anchor plate. Can make the clamping prestress wire 2 of clamping piece 6 more firm through setting up the non slipping spur, the cross sectional shape of non slipping spur is right triangle, and right triangle's most advanced is towards the slot end of anchor slab anchor eye, and when prestressing force steel strand 2 when the trend of 3 one side movements of apron is close to, the non slipping spur can effectually hinder this kind of trend, and then can effectually avoid the circumstances of taking off the anchor, has improved the reliability of ground tackle greatly.
Furthermore, four sliding grooves 11 are formed in the outer side of the anchor hole of the anchor plate at equal intervals in the circumferential direction, sliding blocks 10 matched with the sliding grooves 11 are fixedly connected to the outer sides of the conical sections of the clamping pieces 6, and the four clamping pieces 6 are connected with the anchor plate 7 in an inserting mode through the sliding blocks 10. The clamping piece 6 can be wedged into the anchor hole of the anchor plate more smoothly by arranging the sliding groove 11 and the sliding block 10, and the centering and the positioning of the clamping piece 6 can be realized more quickly.
Further, the projection shape of spout 11 is trapezoidal, and trapezoidal narrow limit is towards the inboard of anchor slab anchor eye, and spout 11 sets up like this and can effectually prevent that clamping piece 6 from taking place the skew when receiving vibrations, avoids clamping piece 6 skew and can't press from both sides tight prestressing force steel strand 2.
The specific implementation mode is as follows:
the construction method of the second embodiment is the same as that of the first embodiment.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (7)
1. The utility model provides an integral flexible locking apron that moves of prestressing force steel strand wires cable clamping piece which characterized in that: the device comprises an anchor plate (7) and a cover plate (3), wherein the anchor plate (7) is detachably connected with the cover plate (3), and a gap is reserved between the anchor plate (7) and the cover plate (3); a clamping assembly is inserted into one side, close to the cover plate (3), of the anchor plate (7), and the prestressed steel strand (2) sequentially penetrates through the cover plate (3), the clamping assembly and the anchor plate (7); the clamping assembly with be provided with between apron (3) interior spring (5), interior spring (5) cover is established on prestressing force steel strand wires (2), interior spring (5) both ends respectively with clamping assembly and apron (3) butt.
2. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 1, wherein: the anchor plate (7) is provided with an anchor plate anchor hole, the anchor plate anchor hole is conical, the wide mouth end of the anchor plate anchor hole is close to the cover plate (3), the prestressed steel strand (2) penetrates through the anchor plate anchor hole and penetrates through the anchor plate (7), and the clamping assembly penetrates through the anchor plate anchor hole and is connected with the anchor plate (7) in an inserting mode.
3. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 2, wherein: the clamping assembly is a conical sleeve consisting of a plurality of clamping pieces (6), the taper of the conical sleeve is matched with that of the anchor hole of the anchor plate, and the prestressed steel strand (2) penetrates through the conical sleeve.
4. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 2, wherein: the cover plate (3) is provided with cover plate anchor holes corresponding to the anchor plate anchor holes, the prestressed steel strands (2) penetrate through the cover plate (3) through the cover plate anchor holes, and the hole diameter of the cover plate anchor holes is 16-17 mm.
5. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 1, wherein: the inner spring (5) is a flat head spring, and the inner diameter of the flat head spring is 16-17 mm.
6. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 1, wherein: a plurality of apron fixing bolt hole (8) have been seted up to apron (3) limit portion circumference equidistance, anchor slab (7) are close to one side of apron (3) seted up with apron fixing bolt hole (8) corresponding anchor slab fixing bolt hole (4), apron (3) with anchor slab (7) can dismantle the connection through fixing bolt (1).
7. The integrated flexible anti-loosening cover plate for the prestressed steel strand inhaul cable clamping piece as recited in claim 1, wherein: the cover plate (3) and the anchor plate (7) are both round steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121565034.7U CN215368262U (en) | 2021-07-08 | 2021-07-08 | Integral flexible anti-loosening cover plate for prestressed steel strand stay cable clamping piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121565034.7U CN215368262U (en) | 2021-07-08 | 2021-07-08 | Integral flexible anti-loosening cover plate for prestressed steel strand stay cable clamping piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215368262U true CN215368262U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121565034.7U Active CN215368262U (en) | 2021-07-08 | 2021-07-08 | Integral flexible anti-loosening cover plate for prestressed steel strand stay cable clamping piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215368262U (en) |
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2021
- 2021-07-08 CN CN202121565034.7U patent/CN215368262U/en active Active
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