CN214364444U

CN214364444U - Fastening device suitable for prestressed anchorage device

Info

Publication number: CN214364444U
Application number: CN202023331477.8U
Authority: CN
Inventors: 雷艳伟
Original assignee: Xinjin Sanqiao Prestress Co ltd
Current assignee: Xinjin Sanqiao Prestress Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-08
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a fastening device suitable for prestressed anchorage utensil, it can guarantee that clamping piece fastening steel strand wires can also prevent the clamping piece from damaging simultaneously, including anchor slab, steel strand wires, clamping piece and bellows, many steel strand wires get into and collect the bellows from the one end of anchor slab, be provided with the clamping piece that is used for centre gripping steel strand wires on the anchor slab, be provided with fastening device on its anchor slab's clamping piece mounting groove, fastening device includes clamping piece extension, the flange, the preforming, the packing ring, the retaining member, the clamping piece extension sets up at the top of clamping piece, the inner wall of clamping piece extension is provided with the spline, the flange sets up at the top of clamping piece extension, and the middle part of flange and the spline cooperation installation of clamping piece extension, the packing ring sets up in the clamping piece mounting groove and fills the clearance between flange and the clamping piece, the preforming is installed in the middle part of the flange, both be provided with the through-hole that supplies steel strand wires to pass through on preforming and the packing ring, the retaining member sets up the ring side at the flange centre bore, retaining member and the locking groove threaded connection on the anchor slab.

Description

Fastening device suitable for prestressed anchorage device

Technical Field

The utility model relates to a prestressed anchorage utensil field particularly, relates to a fastener suitable for prestressed anchorage utensil.

Background

The prestressed anchorage is suitable for anchorage for prestressed concrete stretching in engineering construction. Generally, the method is often used in bridge construction, the positioning is carried out in advance, then concrete is poured and buried at two ends of the concrete, namely two ends of a corrugated pipe, and the end faces are arranged for the stabilizing effect of a jack during tensioning.

The prestressed anchorage utensil among the prior art need squeeze into the clamping piece mounting groove with the clamping piece when using, but because the top of clamping piece is the slice, destroys the clamping piece very easily, still destroys the clamping piece mounting groove easily when influencing the fastening effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fastener suitable for prestressed anchorage utensil, it can guarantee that the clamping piece can also prevent when clamping piece fastening steel strand wires that the clamping piece from damaging, and easy to assemble dismantles.

The embodiment of the utility model is realized like this:

a fastening device suitable for a prestressed anchor comprises an anchor plate, steel strands, clamping pieces and a corrugated pipe, wherein the steel strands enter the corrugated pipe from one end of the anchor plate and are converged into the corrugated pipe, the clamping pieces used for clamping the steel strands are arranged on the anchor plate, the clamp piece mounting groove of the anchor plate is provided with a fastening device, the fastening device comprises a clamp piece extending part, a flange, a pressing piece, a gasket and a locking part, the clamp piece extending part is arranged at the top of the clamp piece, the inner wall of the clamp piece extending part is provided with a spline, the flange is arranged at the top of the clamp piece extending part, and the middle part of the flange is installed in a matched manner with the spline of the clamping piece extending part, the gasket is arranged in the clamping piece installing groove and fills the gap between the flange and the clamping piece, the pressing piece is installed in the middle part of the flange, through holes for the steel strand to pass through are formed in the pressing piece and the gasket, the locking piece is arranged on the ring side of the center hole of the flange, and the locking piece is in threaded connection with the locking groove in the anchor plate.

In the preferred embodiment of the present invention, the washer is disposed in the extension portion of the clip, the pressing plate is mounted above the washer, the locking groove includes a first slot and a second slot, the first slot is disposed above the second slot, the diameter of the first slot is greater than that of the second slot, and the second slot is internally provided with an internal thread.

In the preferred embodiment of the present invention, the locking member includes a spring and a locking bolt, the spring is disposed in the first slot, and the locking bolt passes through the internal thread connection between the flange, the spring and the second slot.

The utility model discloses an in the preferred embodiment, above-mentioned fastener still includes the steel strand wires protective sheath, and the steel strand wires protective sheath is fixed to be set up at the back of anchor slab, and the steel strand wires pass the steel strand wires protective sheath and get into the bellows.

In the preferred embodiment of the present invention, fastening holes are provided at four corners of the steel strand protective sheath, and screws pass through the fastening holes and are fixedly connected to the anchor plate.

In the preferred embodiment of the present invention, the steel strand protection sleeve includes a tapered groove, a protection pad is disposed in the tapered groove, and the steel strand passes through the protection pad and enters the bellows.

The embodiment of the utility model provides a beneficial effect is: the utility model discloses in set up the clamping piece extension on the clamping piece, be provided with the spline on the clamping piece extension, the middle part cooperation of spline and flange, use the preforming simultaneously with packing ring and flange, the clamping piece compresses tightly, adopt the retaining member simultaneously, fix the flange on the anchor slab, increase the steadiness of preforming, compare in current clamping piece, its structural strength is bigger, and be difficult to turn round bad, still be provided with the spring in locking bolt department simultaneously, can not influence the locking bolt use when locking, but when loosening locking bolt, spring help flange flicks, take the clamping piece out, thereby be convenient for change.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

icon: 100-anchor plate; 200-steel strand; 300-a clip; 400-a corrugated tube; 310-a clip extension; 320-a flange; 330-tabletting; 340-a gasket; 350-a locking member; 101-a locking groove; 351-a spring; 352-locking bolt; 500-steel strand protective sheath; 510-protective pressure pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

First embodiment

Referring to fig. 1, the embodiment provides a fastening device suitable for a prestressed anchor, comprising an anchor plate 100, a plurality of steel strands 200, a clip 300 and a corrugated pipe 400, wherein the plurality of steel strands 200 enter from one end of the anchor plate 100 and are gathered in the corrugated pipe 400, the anchor plate 100 is provided with the clip 300 for clamping the steel strands 200, the clip mounting groove of the anchor plate 100 is provided with a fastening device, the fastening device comprises a clip extending portion 310, a flange 320, a pressing sheet 330, a gasket 340 and a locking member 350, the clip extending portion 310 is arranged on the top of the clip 300, the inner wall of the clip extending portion 310 is provided with splines, the flange 320 is arranged on the top of the clip extending portion 310, the middle portion of the flange 320 is fitted with the splines of the clip extending portion 310, the gasket 340 is arranged in the mounting groove and fills the gap between the flange 320 and the pressing sheet 300, the gasket 330 is arranged in the middle portion of the flange 320, the pressing sheet 330 and the gasket 340 are both provided with through holes for the steel strands 200 to pass through, a retaining member 350 is provided at the circumferential side of the central hole of the flange 320, and the retaining member 350 is threadedly coupled to the retaining groove of the anchor plate 100. The washer 340 is disposed in the clip extending portion 310, the pressing piece 330 is installed above the washer 340, and the locking groove 101 includes a first slot hole disposed above a second slot hole having a diameter larger than that of the first slot hole and an internal thread disposed inside the second slot hole. The locking member 350 includes a spring 351 and a locking bolt 352, the spring 351 is disposed in the first slot, and the locking bolt 352 passes through the flange 320, the spring 351 and the internal thread of the second slot.

More specifically, the fastening device in this embodiment further includes a steel strand protection sleeve 500, the steel strand protection sleeve 500 is fixedly disposed on the back of the anchor plate 100, and the steel strand 200 passes through the steel strand protection sleeve 500 and enters the corrugated pipe 400. Fastening holes are formed in four corners of the steel strand protective sleeve 500, and screws penetrate through the fastening holes to be fixedly connected with the anchor plate 100 and used for fixing the steel strand protective sleeve 500. Steel strand wires protective sheath 500 includes the tapered slot, is provided with protection pressure pad 510 in the tapered slot, and steel strand wires 200 pass protection pressure pad 510 and get into bellows 400, reverse support steel strand wires 200, prevent that steel strand wires 200 from when loosening, steel strand wires 200 contracts back rapidly, and the people is hindered to the easy mistake.

In conclusion, in the utility model discloses in set up clamping piece extension 310 on clamping piece 300, be provided with the spline on the clamping piece extension 310, the spline cooperates with the middle part of flange 320, use preforming 330 to compress tightly packing ring 340 and flange 320, clamping piece 300 simultaneously, adopt retaining member 350 simultaneously, fix flange 320 on anchor block 100, increase preforming 330's steadiness, compare in current clamping piece 300, its structural strength is bigger, and be difficult to turn round bad, still be provided with spring 351 in locking bolt 352 department simultaneously, can not influence locking bolt 352 when locking and use, but when loosening locking bolt 352, spring 351 helps flange 320 to bounce, take out clamping piece 300, thereby be convenient for change.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fastening device suitable for a prestressed anchor comprises an anchor plate, steel strands, clamping pieces and a corrugated pipe, wherein the steel strands enter from one end of the anchor plate and are gathered into the corrugated pipe, the anchor plate is provided with the clamping pieces used for clamping the steel strands, and the fastening device is arranged on a clamping piece mounting groove of the anchor plate and comprises clamping piece extending parts, flanges, pressing pieces, a gasket and a locking piece, the clamping piece extending parts are arranged at the tops of the clamping pieces, the inner walls of the clamping piece extending parts are provided with splines, the flanges are arranged at the tops of the clamping piece extending parts, the middle parts of the flanges are matched with the splines of the clamping piece extending parts, the gasket is arranged in the clamping piece mounting groove and fills gaps between the flanges and the clamping pieces, and the pressing pieces are arranged at the middle parts of the flanges, the preforming with all be provided with the confession on the gasket the through-hole that steel strand wires passed through, the retaining member sets up the ring side of flange centre bore, the retaining member with locking groove threaded connection on the anchor slab.

2. The fastening device for the prestressed anchorage of claim 1, wherein said washer is disposed in said clip extension, said pressing plate is mounted above said washer, said locking groove includes a first slot hole and a second slot hole, said first slot hole is disposed above said second slot hole, and the diameter of said first slot hole is greater than that of said second slot hole, and said second slot hole is internally provided with an internal thread.

3. The fastening device for the prestressed anchorage of claim 2, wherein said locking member includes a spring disposed in said first slot and a locking bolt passing through said flange and engaging with an internal thread of said second slot.

4. The fastening device for the prestressed anchorage of claim 1, wherein the fastening device further comprises a steel strand protection sleeve, the steel strand protection sleeve is fixedly arranged on the back surface of the anchor plate, and the steel strand penetrates through the steel strand protection sleeve and enters the corrugated pipe.

5. The fastening device for the prestressed anchorage device as claimed in claim 4, wherein fastening holes are formed in four corners of the steel strand protection sleeve, and screws are fixedly connected with the anchor plate through the fastening holes.

6. The fastening device for the prestressed anchorage of claim 5, wherein said strand protection sheath includes a tapered groove, a protection pad is disposed in said tapered groove, and said strand passes through said protection pad into the corrugated pipe.