Bridge prestressed anchorage device

Abstract

The utility model relates to the technical field of anchorage devices, in particular to a bridge prestressed anchorage device, which is convenient for simultaneously mounting a plurality of clamping pieces in conical mounting holes, is more convenient to operate and improves the mounting efficiency, and comprises an anchor ring and a plurality of conical mounting holes formed in the anchor ring, the anchor ring further comprises clamping pieces matched with the conical mounting holes and used for fixing a steel bar bundle, and is characterized by further comprising a pressing plate, a plurality of fixing holes penetrating through the pressing plate are formed in the pressing plate, a mounting groove is formed in one side of each fixing hole, the diameter of each mounting groove is larger than that of each fixing hole, and the clamping pieces are mounted in the mounting grooves; a driving rod is rotatably connected to the middle of the pressing plate, external threads matched with the screw hole are arranged on the same side of the driving rod and the mounting groove, a handle is arranged at the other end of the driving rod, a rubber ring is arranged on the inner wall of the mounting groove, an anti-skid sleeve is arranged on the handle, and the position of the mounting groove corresponds to the position of the conical mounting hole in a one-to-one mode.

Description

Technical Field

[0001] The utility model relates to the technical field of anchorages, in particular to a prestressed anchorage for bridges. Background Art

[0002] As we all know, an anchor is suitable for use in the tensioning of prestressed concrete anchors during construction. It is often used in bridge construction. It is pre-installed and positioned, and then poured with concrete. It is buried at both ends of the concrete, that is, the two ends of the corrugated pipe. It is the end face set for the stabilization of the jack during tensioning. The permanent anchoring device used on concrete can be divided into two categories: (a) tensioning end anchor: It is installed at the end of the prestressed anchor tendon and can be tensioned. Anchors are also called prestressed anchors. The so-called anchor is in the post-tensioning method. In structures or components, to maintain the tension of prestressed anchor bars and transfer it to the mixed tension anchor; (b) Fixed end anchor: An anchor installed at the end of prestressed anchor bars, usually buried in concrete and not used for tensioning; widely used in highway bridges, railway bridges, urban interchanges, urban light rail, high-rise buildings, water conservancy and hydropower dams, ports and terminals, rock slope anchoring, warehouses and factories, tower buildings, heavy lifting, bridge and tunnel jacking, large containers and ships, bridge and building reinforcement, steel bar engineering, pre-tensioned beam field construction, cable suspension and other project engineering.

[0003] However, the existing prestressed anchors for bridges require the clips to be installed one by one into the conical mounting holes, and then the clips are hammered into the conical mounting holes. Therefore, it is inconvenient to install the clips during installation, the operation is inconvenient, and the installation efficiency is too low. Therefore, it does not meet the existing needs. In this regard, we propose a prestressed anchor for bridges. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a prestressed anchor for a bridge, which facilitates the simultaneous installation of multiple clips in a conical installation hole, makes operation more convenient, and improves installation efficiency.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed anchor for a bridge, comprising an anchor ring and a plurality of conical mounting holes arranged inside the anchor ring, a steel bar bundle being installed inside each of the conical mounting holes, and a clip matching the conical mounting holes and used to fix the steel bar bundle, characterized in that it also comprises a pressure plate, a plurality of fixing holes penetrating the pressure plate are arranged on the pressure plate, a mounting groove is arranged on one side of the fixing hole, the diameter of the mounting groove is larger than the diameter of the fixing hole, the clip is installed in the mounting groove, a screw hole is arranged in the middle of the anchor ring, a driving rod is rotatably connected to the middle of the pressure plate, an external thread matching the screw hole is arranged on the side in the same direction as the driving rod and the mounting groove, and a handle is arranged on the other end of the driving rod.

[0008] Furthermore, a rubber ring is provided on the inner wall of the installation groove.

[0009] Furthermore, an anti-slip cover is provided on the handle.

[0010] Furthermore, the position of the mounting groove corresponds to the position of the tapered mounting hole one by one.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a prestressed anchor for a bridge, which has the following beneficial effects:

[0013] This kind of prestressed anchor for bridges installs each clip in the installation groove through the arrangement of a pressure plate, a fixing hole, a screw hole, a mounting groove, a driving rod and an external thread, and then each steel bar bundle is inserted into the interior of the corresponding clip, and then the external thread end of the driving rod is aligned with the screw hole, and the driving rod is rotated to move the pressure plate toward the anchor ring to squeeze the clip into the conical mounting hole. Therefore, this patent can install multiple clips in the conical mounting hole at the same time without knocking the clips one by one, thereby making the clip operation more convenient and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the pressing plate of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressing plate of the utility model.

[0017] In the figure: 1. anchor ring; 2. conical mounting hole; 3. steel bar bundle; 4. screw hole; 5. pressure plate; 6. fixing hole; 7. driving rod; 8. clip; 9. handle; 10. anti-slip sleeve; 11. rubber ring; 12. mounting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model relates to a prestressed anchor for a bridge, comprising an anchor ring 1 and a plurality of conical mounting holes 2 arranged inside the anchor ring 1, each of which is provided with a steel bar bundle 3 inside the conical mounting hole 2, and a clip 8 matching the conical mounting hole 2 and used to fix the steel bar bundle 3, and a pressing plate 5, wherein the pressing plate 5 is provided with a plurality of fixing holes 6 penetrating the pressing plate 5, the fixing holes 6 are used for the steel bar bundle 3 to pass through, a mounting groove 12 is arranged on one side of the fixing hole 6, the diameter of the mounting groove 12 is larger than the diameter of the fixing hole 6, the clip 8 is installed in the mounting groove 12, a screw hole 4 is arranged in the middle of the anchor ring 1, a driving rod 7 is rotatably connected to the middle part of the pressing plate 5, and an external thread matching the screw hole 4 is arranged on one side of the driving rod 7 and the mounting groove 12 in the same direction, one end of the external thread of the driving rod 7 is aligned with the screw hole 4, the driving rod 7 is rotated to move the pressing plate 5 toward the direction of the anchor ring 1, and the clip 8 is squeezed into the conical mounting hole 2, and a handle is arranged on the other end of the driving rod 7 for facilitating the rotation of the driving rod 7.

[0020] A rubber ring 11 is provided on the inner wall of the installation groove 12 to improve the installation stability of the clip 8 .

[0021] The handle 9 is provided with an anti-slip cover 10 to prevent slipping.

[0022] The position of the mounting groove 12 corresponds to the position of the tapered mounting hole 2 one by one.

[0023] To sum up, when using this kind of prestressed anchor for bridges, each clip 8 is installed in the installation groove 12, and then each steel bar bundle 3 is inserted into the corresponding clip 8, and then the external thread end of the driving rod 7 is aligned with the screw hole 4, and the driving rod 7 is rotated to move the pressure plate 5 toward the anchor ring 1, and the clip 8 is squeezed into the conical installation hole 2 by the pressure plate 5, and multiple clips 8 are installed into the conical installation hole 2 at the same time.

[0024] The technical terms or scientific terms used in the description of this application should be the common meanings understood by ordinary technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance.

[0025] The words "one", "an" or "the" and the like used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The words "include" or "comprise" and the like used in the description of this application mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prestressed anchor for a bridge, comprising an anchor ring (1) and a plurality of conical mounting holes (2) arranged inside the anchor ring, wherein a steel bar bundle (3) is installed inside each of the conical mounting holes (2), and further comprising a clip (8) matching the conical mounting holes (2) and used for fixing the steel bar bundle (3), characterized in that: It also comprises a pressing plate (5), on which a plurality of fixing holes (6) penetrating the pressing plate (5) are arranged, a mounting groove (12) is arranged on one side of the fixing hole (6), the diameter of the mounting groove (12) is larger than the diameter of the fixing hole (6), the clip (8) is installed in the mounting groove (12), a screw hole (4) is arranged in the middle of the anchor ring (1), a driving rod (7) is rotatably connected in the middle of the pressing plate (5), an external thread matching the screw hole (4) is arranged on one side of the driving rod (7) and the mounting groove (12) in the same direction, and a handle (9) is arranged at the other end of the driving rod (7).

2. A prestressed anchor for bridges according to claim 1, characterized in that: A rubber ring (11) is provided on the inner wall of the installation groove (12).

3. A prestressed anchor for bridges according to claim 1, characterized in that: The handle (9) is provided with an anti-slip cover (10).

4. A prestressed anchor for bridges according to claim 1, characterized in that: The position of the mounting groove (12) corresponds one-to-one to the position of the tapered mounting hole (2).

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