Anchorage device for tensioning arch bridge sling

Abstract

The utility model discloses an anchorage device for tensioning an arch bridge sling, which comprises an anchor plate, a plurality of steel frame wire holes for a plurality of groups of steel strands to penetrate through are arranged on the anchor plate, a conical groove for a subsequent conical clamping piece to be clamped in is arranged in each steel frame wire hole, and the anchorage device further comprises a mounting sleeve, an elastic part and a limiting assembly are arranged on the front side and the rear side of the mounting sleeve correspondingly, and the mounting sleeve is fixedly arranged in the steel frame wire hole in a sleeved mode under the action of the elastic part and the limiting assembly. According to the anchorage device for tensioning the arch bridge sling, when the anchorage device for tensioning the arch bridge sling is operated and used, an inner hole of a steel frame wire hole is shielded and protected by quickly mounting and dismounting the mounting sleeve in the steel frame wire hole; the situation that slurry or other sundries adhere to the interiors of the steel frame wire holes in the process that the steel strands abut against and penetrate through the interiors of the steel frame wire holes is avoided, it is guaranteed that the conical clamping pieces and the steel frame wire holes are fully attached in the follow-up process, and the tensioning and fastening effect of the anchorage device is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of arch bridge sling construction, in particular to an anchor used for tensioning arch bridge slings. Background Art

[0002] The arch bridge cable tensioning anchor is a long-term anchoring device used in prestressed concrete. It is an anchoring tool in post-tensioned structures or components to maintain the tension of prestressed tendons and transfer it to the inside of the concrete. During the use of the arch bridge cable tensioning anchor, it is necessary to pass the anchor plate through multiple steel frame wire holes and install it on multiple steel frame wires and abut against the pad. In the process of passing through and abutting, the steel frame wires abut against each other inside the steel frame wire holes, which can easily cause mud or other debris to adhere to the inside of the steel frame wire holes, affecting the subsequent full fit between the conical clips and the steel frame wire holes, and reducing the tensioning and tightening effect of the anchor.

[0003] Therefore, there is an urgent need for an anchor for tensioning the arch bridge cables to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an anchor for tensioning the suspension cables of an arch bridge, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anchor for tensioning arch bridge cables, comprising an anchor plate, a plurality of steel frame wire holes for passing multiple groups of steel strands are formed on the anchor plate, each of the steel frame wire holes is provided with a conical groove for subsequent conical clips to be inserted, and also comprises a mounting sleeve, the front and rear sides of the mounting sleeve are respectively provided with elastic members and limit assemblies, and the mounting sleeve is fixed inside the steel frame wire hole under the action of the elastic members and the limit assemblies, and a plurality of cleaning brushes for cleaning during the passing of the steel strands are fixed inside the mounting sleeve.

[0006] An annular baffle is fixed on the front side of the installation sleeve for blocking the installation sleeve after it is pushed into the inner side of the steel rack wire hole. The outer diameter of the annular baffle is larger than the inner diameter of the steel rack wire hole.

[0007] The elastic member comprises a spring which is sleeved and fixed on the outside of the mounting sleeve.

[0008] A conical surface is provided on the outer side wall of the installation sleeve, and the conical surface and the conical groove inside the steel frame wire hole are matched with each other.

[0009] The limiting components are arranged in a plurality of groups in a circular array on the mounting sleeve.

[0010] The limiting assembly comprises a sliding hole provided on the mounting sleeve, and a limiting rod is inserted into the sliding hole.

[0011] The mounting sleeve is made of rubber material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses an anchor for tensioning the arch bridge sling cable. When the arch bridge sling cable tensioning anchor is in operation, the installation sleeve is installed inside the steel frame wire hole for quick installation and removal, so as to shield and protect the inner hole of the steel frame wire hole, thereby preventing mud or other sundries from adhering to the steel frame wire hole during the process of the steel strand passing through the steel frame wire hole, ensuring that the subsequent conical clip is fully fitted with the steel frame wire hole, and further ensuring the tensioning and tightening effect of the anchor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the installation sleeve of the utility model before installation;

[0016] Figure 3 This is a schematic diagram of the internal structure of the installation sleeve of the utility model;

[0017] Figure 4 The utility model is a schematic structural diagram after the installation sleeve is installed on the wire hole of the steel frame.

[0018] In the figure: 101, anchor plate; 102, steel frame wire hole; 2, installation sleeve; 3, cleaning brush; 4, annular baffle; 5, spring; 6, conical surface; 701, sliding hole; 702, limit rod; 8, steel strand. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides an anchor for tensioning the arch bridge sling, comprising an anchor plate 101, on which a plurality of steel frame wire holes 102 for passing a plurality of steel strands 8 are provided, each steel frame wire hole 102 is provided with a conical groove for subsequent conical clips to be inserted, and also comprises a mounting sleeve 2, on the front and rear sides of the mounting sleeve 2 are respectively provided with elastic members and limit assemblies, and the mounting sleeve 2 is sleeved and fixed inside the steel frame wire hole 102 under the action of the elastic members and the limit assemblies, and a plurality of cleaning brushes 3 for cleaning during the passing of the steel strands 8 are fixed inside the mounting sleeve 2;

[0021] It should be noted here that when the arch bridge cable tensioning anchor is in operation, the inner hole of the steel frame wire hole 102 is shielded and protected by quickly installing and removing the installation sleeve 2 inside the steel frame wire hole 102, thereby preventing mud or other debris from adhering to the steel frame wire hole 102 during the process of the steel strand 8 passing through the steel frame wire hole 102, ensuring that the subsequent conical clip is fully fitted with the steel frame wire hole 102, and further ensuring the tensioning and tightening effect of the anchor.

[0022] The front side of the installation sleeve 2 is fixed with an annular baffle 4 for blocking the installation sleeve 2 after it is pushed into the inner side of the steel wire hole 102. The outer diameter of the annular baffle 4 is larger than the inner diameter of the steel wire hole 102. The elastic member includes a spring 5 which is sleeved and fixed on the outer side of the installation sleeve 2.

[0023] It should be noted here that: each installation sleeve 2 is sequentially inserted into each steel frame wire hole 102. During the pushing process, the spring 5 is pressed against and squeezed by the annular baffle 4 and the anchor plate 101, so that the spring 5 is deformed by force to generate elastic force.

[0024] A conical surface 6 is provided on the outer side wall of the installation sleeve 2, and the conical surface 6 and the conical groove inside the steel wire hole 102 are matched with each other;

[0025] It should be noted here that: the conical surface 6 facilitates the installation sleeve 2 to fully fit the inside of the steel frame wire hole 102, thereby improving the protection effect.

[0026] There are multiple groups of limit assemblies arranged in a circular array on the mounting sleeve 2;

[0027] It should be noted here that the limiting effect is ensured by using multiple sets of limiting components.

[0028] The limiting assembly includes a sliding hole 701 formed on the mounting sleeve 2, and a limiting rod 702 is inserted into the sliding hole 701;

[0029] It should be noted here that: in the process of pushing the installation sleeve 2 into the steel frame wire hole 102, the sliding hole 701 on the installation sleeve 2 passes through the steel frame wire hole 102 and reaches the other side of the anchor plate 101. After the installation sleeve 2 is pushed, each limit rod 702 is inserted into each slide hole 701 in turn. After the insertion is completed, the elastic force of the spring 5 pulls each limit rod 702 to resist against one side of the anchor plate 101, further fixing the installation sleeve 2 after being pushed inside the steel frame wire hole 102.

[0030] The mounting sleeve 2 is made of rubber material;

[0031] It should be noted here that the installation sleeve 2 made of rubber material facilitates the steel strand 8 to pass through the inner side of the installation sleeve 2 .

[0032] Working principle: When the arch bridge cable tensioning anchor is in operation, each installation sleeve 2 is sequentially inserted into each steel frame wire hole 102. During the pushing process, the spring 5 is pressed against each other by the annular baffle 4 and the anchor plate 101, so that the spring 5 is deformed by force to generate elastic force;

[0033] In the process of pushing the installation sleeve 2 into the steel frame wire hole 102, the sliding hole 701 on the installation sleeve 2 passes through the steel frame wire hole 102 and reaches the other side of the anchor plate 101. After the installation sleeve 2 is pushed, each limit rod 702 is inserted into each slide hole 701 in sequence. After the insertion is completed, the elastic force of the spring 5 pulls each limit rod 702 to abut against one side of the anchor plate 101, and further fixes the installation sleeve 2 after the installation is pushed inside the steel frame wire hole 102.

[0034] After the installation sleeve 2 is pushed and limited inside the steel frame wire hole 102, each steel strand 8 is passed through the inner side of the installation sleeve 2 of each steel frame wire hole 102 in turn. During the passing process, the inner hole of the steel frame wire hole 102 is shielded and protected by the installation sleeve 2 to prevent the steel strand 8 from passing through the steel frame wire hole 102 and causing mud or other debris to adhere to the inside of the steel frame wire hole 102. After the steel strand 8 has passed through each steel frame wire hole 102 of the anchor plate 101, the installation sleeve 2 is removed from the steel frame wire hole 102 and slides out through the steel strand 8, and then each conical clip is pushed into the inside of each steel frame wire hole 102 for tensioning and tightening, thereby realizing the normal tensioning use of the arch bridge sling tensioning anchor.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An anchor for tensioning arch bridge cables, comprising: An anchor plate (101), the anchor plate (101) being provided with a plurality of steel frame wire holes (102) for a plurality of groups of steel strands (8) to pass through, each of the steel frame wire holes (102) being provided with a conical groove for subsequent conical clips to be inserted into; It is characterized by further comprising: The installation sleeve (2) is provided with elastic members and limit assemblies on the front and rear sides respectively, and the installation sleeve (2) is sleeved and fixed inside the steel frame wire hole (102) under the action of the elastic members and the limit assemblies, and a plurality of cleaning brushes (3) are fixed inside the installation sleeve (2) for cleaning the steel strands (8) during their passing.

2. The anchor for arch bridge cable tensioning according to claim 1, characterized in that: An annular baffle (4) is fixed on the front side of the installation sleeve (2) for blocking the installation sleeve (2) after it is pushed into the inner side of the steel rack wire hole (102); the outer diameter of the annular baffle (4) is larger than the inner diameter of the steel rack wire hole (102).

3. The anchor for arch bridge cable tensioning according to claim 2, characterized in that: The elastic member comprises a spring (5) which is sleeved and fixed on the outside of the mounting sleeve (2).

4. The anchor for tensioning the arch bridge sling according to claim 3, characterized in that: A conical surface (6) is provided on the outer side wall of the installation sleeve (2), and the conical surface (6) and the conical groove inside the steel wire hole (102) are matched with each other.

5. The anchor for tensioning the arch bridge sling according to claim 1, characterized in that: The limiting components are arranged in a plurality of groups in a circular array on the mounting sleeve (2).

6. The anchor for tensioning the arch bridge sling according to claim 5, characterized in that: The limiting assembly comprises a sliding hole (701) formed on the mounting sleeve (2), and a limiting rod (702) is inserted into the sliding hole (701).

7. The anchor for tensioning the arch bridge sling according to claim 1, characterized in that: The mounting sleeve (2) is made of rubber material.

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