CN218757456U - Self-centering anchor - Google Patents

Abstract

The utility model discloses a from centering ground tackle relates to prestressed anchorage utensil field, include: the anchor backing plate is used for transferring the load of the anchor to the key part of the concrete under the anchor; the anchor ring is positioned on one side of the anchor backing plate; the clamping piece penetrates through the inner side of the anchor ring; the bottom plate is located the opposite side of anchor backing plate, the one end fixed mounting of clamping piece has the clamping piece bulb, clamping piece other end fixed mounting has the clamping piece limiting plate, the one end fixed mounting that the anchor ring is close to the anchor backing plate has the anchor ring bulb, the other end fixed mounting of anchor ring has spacing lagging, the inboard one end that is close to the anchor backing plate of anchor ring is provided with the anchor ring ball socket, the one end that the anchor backing plate is close to the anchor ring bulb is provided with the anchor backing plate ball socket, the beneficial effects of the utility model are that: through the spherical hinge effect, the self-centering effect is achieved, the coincidence of the axis of the anchor ring and the axis of the prestressed steel strand pore channel is ensured, and the bearing effect of the prestressed steel strand is better exerted.

Description

Self-centering anchor

Technical Field

The utility model relates to a prestressed anchorage utensil field specifically is from centering ground tackle.

Background

The anchorage device is a tool for anchoring prestressed steel bars when a prestressed component is manufactured, and is widely applied to anchoring highway bridges, railway bridges, urban overpasses, urban light rails, water conservancy and hydropower dams, rock mass slope protection and the like, and the establishment of a prestressed system is related to whether the prestressed anchorage device can effectively and correctly bear prestressed load.

The prestressed anchorage basically comprises: the anchor ring of the prestressed anchorage device generally adopts a structure which is cylindrical in appearance and internally provided with a conical hole to fill the clamping piece at present.

However, the construction environment is uneven, deviation between the axis of the anchor ring and the axis of the prestressed steel strand duct is easy to occur, and the bearing efficiency of the steel strand cannot be fully exerted at the moment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to address the problems, a self-centering anchor is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a self-centering anchor, comprising:

the anchor backing plate is used for transferring the load of the anchor to the key part of the concrete under the anchor;

the anchor ring is positioned on one side of the anchor backing plate;

the clamping piece penetrates through the inner side of the anchor ring;

the bottom plate is positioned on the other side of the anchor backing plate;

the one end fixed mounting of clamping piece has the clamping piece bulb, clamping piece other end fixed mounting has the clamping piece limiting plate, the one end fixed mounting that the anchor ring is close to the anchor backing plate has the anchor ring bulb, the other end fixed mounting of anchor ring has spacing lagging, the inboard one end that is close to the anchor backing plate of anchor ring is provided with the anchor ring ball socket, the one end that the anchor backing plate is close to the anchor ring bulb is provided with the anchor backing plate ball socket.

As the utility model discloses further scheme again: and one side of the anchor backing plate is fixedly provided with a grouting hole, and a grouting inlet of the grouting hole is in threaded connection with a nut.

As the utility model discloses further scheme again: one side of the bottom plate is sleeved with a spiral rib, and a corrugated pipe penetrates through the spiral rib.

As the utility model discloses further scheme again: the corrugated pipe is internally penetrated with a steel strand, and the steel strand is sequentially penetrated through the clamping piece, the clamping piece ball head, the anchor ring ball socket, the anchor ring ball head, the anchor backing plate ball socket, the anchor backing plate, the bottom plate and the corrugated pipe.

As a further aspect of the present invention: the clip ball head is completely matched with the anchor ring ball socket. And the anchor ring ball head is completely matched with the anchor backing plate ball socket.

As a further aspect of the present invention: the clamping piece limiting plate can be clamped in the limiting sleeve plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the clamping piece, the anchor ring, the anchor backing plate, the bottom plate, the clamping piece ball head, the anchor backing plate ball socket, the anchor ring ball head, the clamping piece limiting plate and the limiting sleeve plate, the spherical position of the anchor can be automatically adjusted by setting the spherical hinge action of the contact positions of the clamping piece and the anchor ring in the double-anchor device and the end parts of the anchor ring and the anchor backing plate, the axis of the anchor ring is ensured to be coincident with the axis of a pore channel of the prestressed steel strand, the effect of straightening the prestressed steel strand is achieved, and the bearing effect of the prestressed steel strand is better exerted;

2. through setting up clamping piece limiting plate, spacing lagging, nut, slip casting hole, change the friction auto-lock of clamping piece and anchor ring into the joint through clamping piece limiting plate and spacing lagging and fix the clamping piece, also make clamping piece bulb and anchor ring ball socket play the ball pivot effect simultaneously, but spherical position of automatically regulated unscrews the nut, just can carry out the slip casting in the slip casting hole.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the clip structure of the present invention;

FIG. 3 is a schematic view of the anchor ring structure of the present invention;

fig. 4 is the schematic structural diagram of the anchor backing plate of the present invention.

In the figure: 1. a clip; 2. an anchor ring; 3. an anchor backing plate; 4. a base plate; 5. steel strand wires; 6. a spiral rib; 7. a bellows; 8. a nut; 9. grouting holes; 10. a clip ball head; 11. an anchor backing plate ball socket; 12. an anchor ring ball socket; 13. an anchor ring ball head; 14. a clamping piece limiting plate; 15. a limiting sleeve plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1 to 4, in an embodiment of the present invention, a self-centering anchor includes:

the anchor backing plate 3 is used for transferring the load of the anchor to the key part of the concrete under the anchor;

the anchor ring 2 is positioned on one side of the anchor backing plate 3;

the clamping piece 1 penetrates through the inner side of the anchor ring 2;

the bottom plate 4 is positioned on the other side of the anchor backing plate 3;

one end fixed mounting of clamping piece 1 has clamping piece bulb 10, and 1 other end fixed mounting of clamping piece has clamping piece limiting plate 14, and the one end fixed mounting that anchor ring 2 is close to anchor backing plate 3 has anchor ring bulb 13, and the other end fixed mounting of anchor ring 2 has spacing lagging 15, and the one end that anchor ring 2 inboard is close to anchor backing plate 3 is provided with anchor ring ball socket 12, and the one end that anchor backing plate 3 is close to anchor ring bulb 13 is provided with anchor backing plate ball socket 11, and clamping piece bulb 10 agrees with anchor ring ball socket 12 completely. The anchor ring ball 13 is completely matched with the anchor backing plate ball socket 11, the clamping piece limiting plate 14 can be clamped in the limiting sleeve plate 15, the clamping piece 2 is fixed through the clamping piece limiting plate 14 and the limiting sleeve plate 15, and meanwhile, under the action of the spherical hinge of the clamping piece ball 10, the anchor ring ball socket 12, the anchor ring ball 13 and the anchor backing plate ball socket 11, the positions of the axis of the anchor ring and the axis of the prestressed steel strand duct can be automatically adjusted, so that the bearing effect of the steel strand 5 is fully exerted.

Please refer to fig. 4, a grouting hole 9 is fixedly installed on one side of the anchor backing plate 3, a nut 8 is connected to a grouting inlet of the grouting hole 9 through a screw thread, grouting is started by unscrewing the nut 8, and after grouting is finished, the nut 8 is tightened.

Please refer to fig. 1, a spiral rib 6 is sleeved on one side of a bottom plate 4, a corrugated pipe 7 penetrates through the spiral rib 6, a steel strand 5 penetrates through the corrugated pipe 7, the steel strand 5 sequentially penetrates through a clamping piece 1, a clamping piece ball 10, an anchor ring ball socket 12, an anchor ring ball socket 13, an anchor backing plate ball socket 11, an anchor backing plate 3, the bottom plate 4 and the corrugated pipe 7, when the prestressed steel strand 5 is tensioned, the prestress built in the prestressed steel strand is transmitted to the bottom plate 4 through the clamping piece 1, the anchor ring 2 and the anchor backing plate 3, and the bottom plate 4 transmits the prestress to a supporting surface within a certain area range.

The utility model discloses a theory of operation is: firstly, a corrugated pipe 7 is pre-buried in a construction position, a spiral rib 6 and a bottom plate 4 are installed at the end part of the corrugated pipe 7, the spiral rib 6 can prevent the concrete from cracking in the construction, a steel strand 5 penetrates into the bottom plate 4 and the corrugated pipe 7, the steel strand 5 penetrates through an anchor backing plate 3, an anchor ring 2 and a clamping piece 1, the clamping piece 1 is rotated, a clamping piece limiting plate 14 and a limiting sleeve plate 15 are clamped, a limiting plate is placed on the anchor ring 2, the steel strand 5 penetrates through the inside of a jack, the end part of the jack is processed into the anchor plate and a working clamping piece, a hydraulic station is started to stretch the steel strand 5, the clamping piece 1 and the steel strand 5 slide in a staggered mode, a ball head 10, an anchor ring ball socket 12, an anchor ring ball head 13 and an anchor backing plate ball socket 11 can automatically adjust the positions of the axis of the anchor ring and the axis of a prestressed steel strand duct to coincide with each other, after the operation anchor plate, the working clamping piece, the jack and the clamping piece, the limiting plate and the clamping piece, the clamping piece and the nut 1 retract under the tension of the steel strand 5 under the tension of the steel strand 5, the cutting of the extra steel strand 5, the nut 8 is unscrewed, the nut 8 is screwed, the nut is fully poured, and the cement slurry is poured into a tensioning hole is filled, and then the nut 8 is tightened, and the tensioning nut is tensioned.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A self-centering anchor, comprising:

the anchor backing plate (3) is used for transferring the load of the anchor to the key part of the concrete under the anchor;

the anchor ring (2) is positioned on one side of the anchor backing plate (3);

the clamping piece (1) penetrates through the inner side of the anchor ring (2);

the bottom plate (4) is positioned on the other side of the anchor backing plate (3);

the novel clamp is characterized in that one end of the clamping piece (1) is fixedly provided with a clamping piece ball head (10), the other end of the clamping piece (1) is fixedly provided with a clamping piece limiting plate (14), one end of the anchor ring (2) close to the anchor backing plate (3) is fixedly provided with an anchor ring ball head (13), the other end of the anchor ring (2) is fixedly provided with a limiting sleeve plate (15), one end of the inner side of the anchor ring (2) close to the anchor backing plate (3) is provided with an anchor ring ball socket (12), and one end of the anchor backing plate (3) close to the anchor ring ball head (13) is provided with an anchor backing plate ball socket (11).

2. The self-centering anchor device according to claim 1, wherein a grouting hole (9) is fixedly installed at one side of the anchor backing plate (3), and a nut (8) is connected to a grouting inlet of the grouting hole (9) in a threaded manner.

3. The self-centering anchor device according to claim 1, wherein a spiral rib (6) is sleeved on one side of the bottom plate (4), and a corrugated pipe (7) penetrates through the spiral rib (6).

4. The self-centering anchor device according to claim 3, wherein a steel strand (5) penetrates through the corrugated pipe (7), and the steel strand (5) penetrates through the clamping piece (1), the clamping piece ball head (10), the anchor ring ball socket (12), the anchor ring ball head (13), the anchor backing plate ball socket (11), the anchor backing plate (3), the bottom plate (4) and the corrugated pipe (7) in sequence.

5. Self-centering anchorage according to claim 1, characterized in that the clip ball (10) is fully engaged with the anchor ring ball socket (12) and the anchor ring ball (13) is fully engaged with the anchor pad ball socket (11).

6. A self-centering anchor according to claim 1, wherein said clip retainer plate (14) is snappable into a retainer sleeve plate (15).

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