Tensioning anchorage device

Abstract

The utility model discloses a tensioning anchorage device, which relates to the technical field of constructional engineering and comprises an anchoring cylinder, a fixing disc and a cableway pipe, bottom connecting holes are circularly arrayed at one end of the anchoring cylinder, the cableway pipe is conical in appearance, anchoring holes are circularly arrayed on the side surface of the anchoring disc, wear-resistant rings are movably inserted into the anchoring holes, and the wear-resistant rings are movably inserted into the anchoring holes. Limiting assemblies for limiting the wear-resisting ring in the anchoring hole are arranged on the portions, on the two side faces of the wear-resisting ring, of the anchoring disc. The anchor bearing is provided with the anchoring disc, the anchoring holes are formed in the side face of the anchoring disc in a circular array mode, the abrasion-resistant rings are movably inserted into the anchoring holes, when the anchorage device works actually, steel bars penetrate through the abrasion-resistant rings instead of the anchoring holes, the abrasion-resistant rings are pulled and abraded by the steel bars, the abrasion-resistant rings can be directly replaced, the whole anchor bearing does not need to be replaced, and production cost is greatly reduced. And the limiting assemblies are arranged on the two sides of the wear-resisting ring, the wear-resisting ring can be limited in the anchoring holes through the limiting assemblies, displacement of the wear-resisting ring is avoided, and replacement or maintenance of the wear-resisting ring is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a tension anchor. Background Art

[0002] Prestressed steel bars are steel bars that are prestressed and tensile-deformed by pre-tensioning or post-tensioning the steel bars in reinforced concrete structures before use. After concrete is poured, prestressed steel bars can apply compressive stress to the concrete of the component, thereby improving the structural strength of the component.

[0003] The patent document with authorization announcement number CN201411827Y discloses a fixed end, a tensioning end, a rope, etc. The structure can adjust the elongation of a single stranded wire. The prestressed force value can be accurately controlled by adjusting the elongation, thereby realizing the force value control and stranded wire elongation control of the prestressed tensioning technology. However, the prestressed anchor has certain defects: when the tensioning end anchor seat is in use, the rope is subjected to a large tension and is easily damaged in the anchor hole of the anchor seat, causing the anchor seat to be scrapped and the damage is difficult to repair. A new anchor seat must be replaced to complete the tensioning work, which increases production costs. Summary of the invention

[0004] The utility model aims to solve the problems existing in the above-mentioned background technology in the prior art and proposes a tension anchor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tensioning anchor comprises an anchor tube, a fixing plate and a cableway tube, wherein one end of the anchor tube has a bottom connection hole in a circular array, the cableway tube has a conical appearance, one end of the cableway tube is fixedly provided with a stepped head, the end of the anchor tube away from the bottom connection hole is fixedly provided with an anchor plate, the side surface of the anchor plate has anchor holes in a circular array, a wear-resistant ring is movably inserted into the anchor hole, and the anchor plate is provided with limiting components on both sides of the wear-resistant ring to limit the wear-resistant ring in the anchor hole.

[0007] Optionally, a circular array of docking holes is provided on a side of the anchoring tube away from the bottom connection hole, and a mounting hole is provided on a side of the fixing plate, and docking bolts are screwed into the common threads of the mounting hole and the docking hole.

[0008] Optionally, a stepped cavity is opened on the side of the fixed disk, a stepped head is movably inserted into the stepped cavity, and a narrow end of the stepped head passes through the narrow end of the stepped cavity.

[0009] Optionally, the limiting assembly includes a blocking ring, a blocking arc block, and a locking bolt, and the blocking ring is fixedly arranged on the side of the anchor hole.

[0010] Optionally, the inner diameter of the blocking ring is smaller than the diameter of the anchor hole, and the anchor plate has locking bolts in a circular array on the side opposite to the blocking ring, and the ends of the locking bolts are threaded into the side of the anchor plate.

[0011] Optionally, a transverse groove is opened on the side of the blocking arc block, the locking bolt passes through the transverse groove, and the top of the blocking arc block is arranged to be arc-shaped.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model is provided with an anchor plate, and a circular array of anchor holes is provided on the side of the anchor plate. A wear-resistant ring is movably inserted into the anchor hole. When the anchor is actually working, the steel bar passes through the wear-resistant ring instead of the anchor hole. The wear-resistant ring is pulled and worn by the steel bar. The wear-resistant ring can be directly replaced without replacing the entire anchor seat, which greatly reduces the production cost.

[0014] 2. The wear-resistant ring of the utility model is movably inserted into the anchor hole, and limiting components are arranged on both sides of the wear-resistant ring. The limiting components can limit the wear-resistant ring in the anchor hole to avoid displacement of the wear-resistant ring and facilitate replacement or maintenance of the wear-resistant ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 Another perspective structural diagram of;

[0017] Figure 3 It is a schematic diagram of the structure of the anchor plate and the wear-resistant ring;

[0018] Figure 4 for Figure 3 Another perspective structural diagram of;

[0019] In the figure: 1, bottom connection hole; 2, anchor cylinder; 3, step cavity; 4, fixing plate; 41, mounting hole; 5, step head; 6, cableway pipe; 7, docking hole; 8, docking bolt; 9, anchor plate; 91, anchor hole; 10, wear-resistant ring; 11, locking bolt; 12, transverse groove; 13, blocking arc block; 14, blocking ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-4 A tension anchor comprises an anchor tube 2, a fixing plate 4 and a cableway tube 6. A circular array of bottom connection holes 1 is provided at one end of the anchor tube 2. The anchor tube 2 is used to accommodate the ends of multiple groups of fixed steel bars, and the anchor tube 2 can be filled with anti-corrosion oil to prevent corrosion of the steel bars.

[0023] The cableway tube 6 has a conical appearance, and both ends of the cableway tube 6 are open. The cableway tube 6 is used to gather multiple strands of steel bars, and a stepped head 5 is fixedly provided at one end. An anchor plate 9 is fixedly provided at one end of the anchor tube 2 away from the bottom connection hole 1. A circular array of anchor holes 91 is provided on the side of the anchor plate 9, and a wear-resistant ring 10 is movably inserted into the anchor hole 91. The anchor hole 91 and the wear-resistant ring 10 are intermittently matched, which can facilitate the wear-resistant ring 10 to be pulled out of the anchor hole 91. The anchor plate 9 is provided with limiting components on both sides of the wear-resistant ring 10 to limit the wear-resistant ring 10 in the anchor hole 91.

[0024] A circular array of docking holes 7 is provided on the side of the anchor tube 2 away from the bottom connection hole 1, a mounting hole 41 is provided on the side of the fixing plate 4, a docking bolt 8 is screwed into the common thread of the mounting hole 41 and the docking hole 7, a stepped cavity 3 is provided on the side of the fixing plate 4, a stepped head 5 is movably inserted into the stepped cavity 3, and the narrow end of the stepped head 5 passes through the narrow end of the stepped cavity 3.

[0025] The limiting assembly includes a blocking ring 14, a blocking arc block 13, and a locking bolt 11. The blocking ring 14 is fixedly arranged on the side of the anchor hole 91. The inner diameter of the blocking ring 14 is smaller than the diameter of the anchor hole 91. The anchor plate 9 has a locking bolt 11 in a circular array on the opposite side of the blocking ring 14. The end of the locking bolt 11 is threaded into the side of the anchor plate 9. A transverse groove 12 is opened on the side of the blocking arc block 13. The locking bolt 11 passes through the transverse groove 12. The top of the blocking arc block 13 is set to be an arc.

[0026] The specific implementation steps of the utility model are as follows:

[0027] Insert the step head 5 into the step cavity 3, and then insert multiple sets of wear-resistant rings 10 into the anchor hole 91, one end of the wear-resistant ring 10 contacts the blocking ring 14, and then move the blocking arc block 13 horizontally to the side of the wear-resistant ring 10, and finally tighten the locking bolt 11, and align the mounting hole 41 of the fixed plate 4 with the docking hole 7 of the anchor tube 2, and screw in the docking bolt 8.

[0028] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tension anchor, comprising an anchor tube (2), a fixing plate (4), and a cableway tube (6), characterized in that: A bottom connection hole (1) is provided in a circular array at one end of the anchor tube (2); the cableway tube (6) is conical in appearance; a stepped head (5) is fixedly provided at one end of the cableway tube (6); an anchor plate (9) is fixedly provided at one end of the anchor tube (2) away from the bottom connection hole (1); a circular array of anchor holes (91) is provided on the side of the anchor plate (9); a wear-resistant ring (10) is movably inserted into the inside of the anchor hole (91); and the anchor plate (9) is provided with limiting components on both sides of the wear-resistant ring (10) for limiting the wear-resistant ring (10) in the anchor hole (91).

2. A tension anchor according to claim 1, characterized in that: The anchor tube (2) has a circular array of docking holes (7) on one side away from the bottom connection hole (1), and the fixing plate (4) has a mounting hole (41) on the side. A docking bolt (8) is screwed into the common thread of the mounting hole (41) and the docking hole (7).

3. A tension anchor according to claim 1, characterized in that: A stepped cavity (3) is provided on the side of the fixed disk (4), a stepped head (5) is movably inserted into the stepped cavity (3), and a narrow end of the stepped head (5) passes through the narrow end of the stepped cavity (3).

4. A tension anchor according to claim 1, characterized in that: The limiting assembly comprises a blocking ring (14), a blocking arc block (13), and a locking bolt (11); the blocking ring (14) is fixedly arranged on the side of the anchor hole (91).

5. A tension anchor according to claim 4, characterized in that: The inner diameter of the blocking ring (14) is smaller than the diameter of the anchor hole (91), and the anchor plate (9) has locking bolts (11) in a circular array on the side opposite to the blocking ring (14), and the ends of the locking bolts (11) are threadedly screwed into the side of the anchor plate (9).

6. A tension anchor according to claim 5, characterized in that: A transverse groove (12) is provided on the side of the blocking arc block (13), the locking bolt (11) passes through the transverse groove (12), and the top of the blocking arc block (13) is arranged in an arc shape.

Images