Prestressed anchorage device for engineering construction

Abstract

The utility model provides a pre-stressed anchorage device for engineering construction, which relates to the technical field of pre-stressed anchorage devices and comprises an anchor backing plate, a pre-stressed tendon, an anchor backing cylinder, a corrugated pipe, an anchor plate, a guide plate, a guide pipe, a guide sleeve, a rectangular plate and a support plate. The prestressed tendons are accurately aligned to other construction anchorage device holes, so that the prestressed tendons are rapidly and efficiently installed on the two anchorage devices, time and labor are saved in operation, the rectangular plates and the supporting plates are arranged on the anchor bearing plate, the contact area between the anchorage devices and poured concrete is increased, the stability of the anchorage devices is improved, and the construction efficiency is improved. The structural strength of the anchorage device is enhanced when the concrete strength is reduced, and the problems that in the using process of an existing anchorage device, hole alignment is difficult, the construction efficiency is low, and the structural stability is poor are solved.

Description

A prestressed anchor for engineering construction Technical Field

[0001] This utility model relates to the field of prestressed anchorage technology, specifically to a prestressed anchorage for engineering construction. Background Technology

[0002] Prestressed anchorages are important components used for prestressing concrete and are widely used in bridge construction. They are usually pre-installed and positioned before concrete is poured, and are embedded at both ends of the concrete component, i.e., at both ends of the corrugated pipe, to act as end supports for jacking stability during tensioning.

[0003] Currently, prestressed anchorages require multiple prestressing tendons to be pre-threaded through the anchorage during use. However, due to the small diameter of the holes on the anchor plates, which can only match the size of the prestressing tendons, it is often difficult to align the prestressing tendons when they pass through the working anchor plate and emerge from the holes on the other end of the anchor plate. This not only prolongs the installation time but also affects construction efficiency. In addition, the anchor plates at both ends of the anchorage are directly embedded in the concrete surface. With the increase of service life, the concrete surface is prone to weathering and strength reduction, making it difficult to effectively support the anchor plates. The anchor plates move under the tension of the prestressing tendons, causing deformation of the prestressing tendons, which in turn leads to stress loss, affecting the structural safety and durability. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a prestressed anchor for engineering construction.

[0005] A prestressed anchor for engineering construction includes: an anchor plate and prestressing tendons. An anchor plate is provided on one side of the anchor plate, and an anchor cylinder is provided on the other side of the anchor plate. A corrugated pipe is provided on the side of the anchor cylinder away from the anchor plate. An installation hole is opened on the anchor plate, and a wedge is provided in the installation hole. The prestressing tendons are placed in the wedge. A guide plate is provided on the inner wall of the corrugated pipe. The anchor also includes a guide pipe. A guide hole is opened on the guide plate. One end of the guide pipe is provided on the anchor plate and corresponds to the position of the installation hole. The other end of the guide pipe is provided on the guide plate and corresponds to the position of the guide hole. A connecting block is also provided on the inner wall of the corrugated pipe. A guide sleeve is provided on the connecting block. The prestressing tendons extend from the wedge, through the guide pipe and the guide hole, to the guide sleeve. The anchor also includes a rectangular plate and a support plate. The rectangular plate is provided on the anchor plate, and the support plate is provided on the rectangular plate.

[0006] Furthermore, the anchor also includes a spiral reinforcement, which is disposed on the anchor plate and connected to the rectangular plate.

[0007] Furthermore, the anchor also includes a mounting plate, which is disposed on the guide tube.

[0008] Furthermore, the anchor also includes a fixing plate, which is disposed on the guide sleeve.

[0009] Furthermore, the anchor also includes bolts, and the rectangular plate is connected to the anchor plate by bolts.

[0010] Furthermore, the anchor also includes grouting holes, which are formed on the anchor plate.

[0011] Furthermore, the anchor plate is also provided with a grouting channel, which extends from the grouting hole into the inside of the anchor cylinder.

[0012] Furthermore, the anchor plate has threaded holes, and bolts are connected to the threaded holes.

[0013] Furthermore, the anchor also includes a guide bucket, with guide buckets provided at both ends of the guide sleeve.

[0014] Furthermore, the anchor plate is a cylinder.

[0015] The technical solution of this utility model has the following advantages:

[0016] In the technical solution provided by this utility model, the prestressing tendons are precisely aligned with the holes of other construction anchors by using clamps, guide tubes, guide holes and guide sleeves as guides, thereby quickly and efficiently installing the prestressing tendons on two anchors. The operation is time-saving and labor-saving. The rectangular plate and support plate set on the anchor plate increase the contact area between the anchor and the poured concrete, thereby improving the stability of the anchor and strengthening the structural strength of the anchor when the concrete strength decreases. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is a diagram of the internal structure of this utility model;

[0020] Figure 3 is a schematic diagram of the anchor plate, mounting holes and clamping plate structure of this utility model;

[0021] Figure 4 is a schematic diagram of the guide plate, guide hole and conical groove structure of this utility model;

[0022] Figure 5 is a schematic diagram of the rectangular plate, bolts and support plate of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Anchor cylinder; 2-Anchor plate; 3-Anchor plate; 4-Mounting hole; 5-Prestressed tendon; 6-Wedge; 7-Corrugated pipe; 8-Guide plate; 9-Guide hole; 10-Conical groove; 11-Guide tube; 12-Guide sleeve; 13-Guide bucket; 14-Mounting plate; 15-Fixing plate; 16-Rectangular plate; 17-Bolt; 18-Threaded hole; 19-Support plate; 20-Helical reinforcement. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] As shown in Figures 1-4, a prestressed anchorage for engineering construction includes: an anchor plate 2 and prestressing tendons 5. An anchor plate 3 is provided on one side of the anchor plate 2, and an anchor cylinder 1 is provided on the other side of the anchor plate 2. A corrugated pipe 7 is provided on the side of the anchor cylinder 1 away from the anchor plate 2. Multiple mounting holes 4 are provided on the anchor plate 3, and clamps 6 are provided in each of the mounting holes 4. The prestressing tendons 5 are placed in the clamps 6. A guide plate 8 is provided on the inner wall of the corrugated pipe 7. The anchorage also includes a guide pipe 11. Multiple guide holes 9 are provided on the guide plate 8. One end of the guide pipe 11 is provided on the anchor plate 3 and corresponds to the position of the mounting hole 4. The other end of the guide pipe 11 is provided on the guide plate 8. Corresponding to the position of the guide hole 9, a connecting block is also provided on the inner wall of the corrugated pipe 7. A guide sleeve 12 is provided on the connecting block. The connecting block is used to fix the guide sleeve 12 inside the corrugated pipe 7. The prestressing tendon 5 extends from the clamp 6 through the guide pipe 11 and the guide hole 9 to the guide sleeve 12. The anchor also includes a rectangular plate 16 and a support plate 19. The anchor plate 2 has a cuboid structure. The rectangular plate 16 is set on the four sides of the anchor plate 2. The support plate 19 is set on the rectangular plate 16. Conical grooves 10 are opened on both sides of the guide hole 9. The design of the conical grooves 10 enlarges the diameter of the guide hole 9 and plays a guiding role, making it easy for the prestressing tendon 5 to pass through the guide hole 9 accurately.

[0030] The prestressed anchorage used in the above-mentioned construction project utilizes the wedge 6, guide tube 11, guide hole 9, and guide sleeve 12 as guides to accurately align the prestressed tendon 5 with the holes of other construction anchorages, thereby quickly and efficiently installing the prestressed tendon 5 on two anchorages. The operation is time-saving and labor-saving. Rectangular plates 16 and support plates 19 are set around the anchor plate 2, which increases the contact area between the anchorage and the poured concrete, thereby improving the stability of the anchorage and strengthening the structural strength of the anchorage when the concrete strength decreases.

[0031] As shown in Figure 1, in this embodiment, the anchor also includes a spiral reinforcement 20. The spiral reinforcement 20 is disposed on the side of the anchor plate 2 away from the anchor plate 3, and the spiral reinforcement 20 is connected to the rectangular plate 16. The spiral reinforcement 20 is sleeved on the anchor cylinder 1. The connection between the spiral reinforcement 20 and the rectangular plate 16 and the anchor plate 2 can be welding or other forms of fixed connection. The purpose of setting the spiral reinforcement 20 is to ensure the stability of the rectangular plate 16 around the anchor plate 2, improve the reliability of the connection, thereby strengthening the structural strength of the anchor when the concrete strength decreases, and ensuring that the prestressed tendon 5 does not deform.

[0032] As shown in Figure 2, in this embodiment, the anchor also includes a mounting plate 14, which is disposed on the guide tube 11. Each guide tube 11 is connected to the others by the mounting plate 14. The purpose of this arrangement is to ensure the stability of the connection between each guide tube 11, fix the position of each guide tube 11, prevent it from moving and thus reducing the prestress and affecting the use effect of the anchor. The connection between the mounting plate 14 and the guide tube 11 can be welding or other forms of fixed connection.

[0033] As shown in Figure 2, in this embodiment, the anchor also includes a fixing plate 15, which is disposed on the guide sleeve 12. Each guide sleeve 12 is connected to the others by the fixing plate 15. The purpose of this arrangement is to ensure the stability of the connection between each guide sleeve 12, fix the position of each guide sleeve 12, and avoid movement that would affect the use effect of the anchor. The connection between the fixing plate 15 and the guide sleeve 12 can be welding or other forms of fixed connection.

[0034] As shown in Figure 5, in this embodiment, the anchor also includes a bolt 17. The rectangular plate 16 is connected to the anchor plate 2 by the bolt 17. The anchor plate 3 has a threaded hole 18, and the bolt 17 is connected to the threaded hole 18. The bolt 17 can be used to install the rectangular plate 16 onto the anchor plate 2. At the same time, the bolt 17 connection saves time and effort and is reliable.

[0035] As shown in Figures 1 and 2, in this embodiment, the anchor also includes a grouting hole, which is opened on the anchor plate 3; a grouting channel is also opened on the anchor plate 3, which extends from the grouting hole to the inside of the anchor cylinder 1; the anchor plate 3 is a cylinder; the design of the grouting hole and the grouting channel facilitates the pouring of concrete during the construction process.

[0036] As shown in Figure 2, in this embodiment, the anchor also includes a guide bucket 13, and both ends of the guide sleeve 12 are provided with guide buckets 13. The design of the guide bucket 13 provides guidance and expands the installation diameter of the guide sleeve 12, making it easier for the prestressed tendon 5 to be installed on the guide sleeve 12. At the same time, the guide sleeve 12 is also provided with two rows to facilitate the support of the prestressed tendon 5, and multiple rows of guide sleeves 12 can also be designed according to the actual length of the prestressed tendon 5.

[0037] As shown in Figures 1 to 4, in this embodiment, multiple anchors are arranged horizontally in sequence. Multiple prestressed tendons 5 are passed through the mounting hole 4, guide pipe 11, guide hole 9, and guide sleeve 12, so that the prestressed tendons 5 enter the corrugated pipe 7. Then, the prestressed tendons 5 pass through the anchor plate 3 of another anchor and are installed on the mounting hole 4 of another anchor. After that, clamps 6 are installed on the mounting hole 4 to limit and lock the prestressed tendons 5. Finally, the rectangular plate 16 is set around the anchor plate 2 by using bolts 17 and threaded holes 18. The clamps 6 on the anchors are existing technology, so their structure and principle will not be described in detail here.

[0038] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A prestressing anchor for use in construction engineering, comprising: Anchor plate (2) and prestressing tendon (5), characterized in that an anchor plate (3) is provided on one side of the anchor plate (2), and an anchor cylinder (1) is provided on the other side of the anchor plate (2). A corrugated pipe (7) is provided on the side of the anchor cylinder (1) away from the anchor plate (2). An installation hole (4) is provided on the anchor plate (3), and a clamp (6) is provided in the installation hole (4). The prestressing tendon (5) is provided in the clamp (6). A guide plate (8) is provided on the inner wall of the corrugated pipe (7). The anchor also includes a guide pipe (11). A guide hole (9) is provided on the guide plate (8). 1) One end is set on the anchor plate (3) and corresponds to the position of the mounting hole (4). The other end of the guide tube (11) is set on the guide plate (8) and corresponds to the position of the guide hole (9). A connecting block is also set on the inner wall of the corrugated pipe (7). A guide sleeve (12) is set on the connecting block. The prestressed tendon (5) extends from the wedge (6) through the guide tube (11) and the guide hole (9) to the guide sleeve (12). The anchor also includes a rectangular plate (16) and a support plate (19). The rectangular plate (16) is set on the anchor plate (2), and the support plate (19) is set on the rectangular plate (16).

2. The prestressing anchor for engineering construction according to claim 1, characterized in that, The anchor also includes a spiral bar (20), which is disposed on the anchor plate (2) and connected to the rectangular plate (16).

3. A prestressed anchorage for engineering construction according to claim 1, characterized in that, The anchor also includes an mounting plate (14), which is mounted on the guide tube (11).

4. The prestressing anchor for engineering construction according to claim 1, characterized in that, The anchor also includes a fixing plate (15), which is mounted on the guide sleeve (12).

5. A prestressed anchorage for engineering construction according to claim 1, characterized in that, The anchor also includes bolts (17), and the rectangular plate (16) is connected to the anchor plate (2) by bolts (17).

6. The prestressing anchor for engineering construction according to claim 1, characterized in that, The anchor also includes a grouting hole, which is located on the anchor plate (3).

7. The prestressing anchor according to claim 6, characterized in that The anchor plate (3) is also provided with a grouting channel, which extends from the grouting hole into the interior of the anchor cylinder (1).

8. A prestressed anchorage for engineering construction according to claim 5, characterized in that, The anchor plate (3) has a threaded hole (18), and the bolt (17) is connected to the threaded hole (18).

9. The prestressing anchor for engineering construction according to claim 1, characterized in that, The anchor also includes a guide bucket (13), and both ends of the guide sleeve (12) are provided with guide buckets (13).

10. The prestressing anchor for engineering construction according to claim 1, characterized in that, The anchor plate (3) is a cylinder.

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