Adjustable multi-hole prestressed anchorage device

Abstract

The utility model discloses an adjustable multi -hole prestressed anchorage device relates to the technical field of anchorage device, including anchor pad and the anchor plate and spiral muscle that are equipped with the surface both sides, the grouting mouth is established in one side of anchor pad surface, the utility model discloses when using first place the reinforcing bar in the inside of the clamping piece structure, then make the clamping piece structure rotation screw thread connection in one side of anchor plate surface, through the effect of screw thread connection makes a plurality of clamping piece structure finally can stable installation in one side of anchor plate surface, then when the anchor plate butt joint in one side of anchor pad surface, can drive the clamping structure of both sides, make anchor plate can accurate stable butt joint in one side of anchor pad surface, make the device avoid the problem that the hole calibration is difficult, and the anchorage device is easy to deflect and vibrates when installing, make the construction process convenient and improve stability, substantially reduce the risk of prestress loss and concrete cracking.

Description

Technical Field

[0001] This utility model relates to the field of anchorage technology, and in particular to an adjustable multi-hole prestressed anchorage. Background Technology

[0002] Adjustable multi-hole prestressed anchorages are key components used in prestressed concrete structures. Their core feature is the precise control of the tension of multiple steel strands via built-in adjustment mechanisms (such as threaded sleeves or elastic elements). They enable simultaneous anchoring of steel strands at multiple holes, allowing for stress fine-tuning during tensioning or post-tensioning compensation. They are primarily suitable for large-scale projects with high precision requirements, such as bridges and high-rise buildings.

[0003] The applicant discovered through a search that a Chinese patent, "An Adjustable Prestressed Anchor Device," with publication number "CN222879058U," discloses an adjustable prestressed anchor device. This device includes an anchor pad with an anchor plate at its front end. A compression pad is positioned between the anchor pad and the anchor plate. The compression pad has multiple through grooves on its surface, the inner diameter of which is larger than the aperture of the anchor plate. A moving component is positioned between the anchor pad and the compression pad to control the movement of the compression pad. This moving component includes multiple threaded grooves on the surface of the compression pad. The adjustable prestressed anchor device of this invention, by using a threaded rod and threaded grooves, allows for precise control of the compression pad distance when the threaded rod rotates, as the distance covered by one rotation is only the thread pitch. This prevents damage to the prestress caused by adjusting the prestress. Furthermore, the threaded rod and threaded grooves have a self-locking function, eliminating the need for additional equipment and reducing operating costs.

[0004] However, adjustable multi-hole anchors have complex adjustment structures, and during installation, there are problems such as difficulty in calibrating the ducts and easy deviation and vibration of the anchors. The construction process is cumbersome and the stability is insufficient. Compared with fixed anchors, they are more likely to cause prestress loss and concrete cracking. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable multi-hole prestressed anchor to solve the problems mentioned in the background art, such as the difficulty in calibrating the ducts during installation, the easy deviation and vibration of the anchor leading to cumbersome installation and insufficient stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable multi-hole prestressed anchor, comprising an anchor plate and anchor plates and spiral reinforcements on both sides of the surface. A grouting port is provided on one side of the surface of the anchor plate, and multiple clamping structures are provided on one side of the surface of the anchor plate. The clamping prestress can be enhanced by the interlocking effect of the two plates and the cooperation between the anchor plate and the anchor plate, thereby reducing slippage and relaxation. A clamping structure is provided on one side of the surface of the anchor plate, which can make the anchor plate more precise and stable when it is connected with the anchor plate.

[0007] Preferably, the anchor plate includes fixing holes and threaded grooves, with multiple fixing holes being formed on one side of the anchor plate surface and multiple threaded grooves being provided inside the fixing holes.

[0008] Preferably, each of the multiple clip structures includes a right clip, a left clip, and a through hole. The right clip and the left clip are both located inside the fixing hole, and the through hole is opened inside the right clip and the left clip.

[0009] Preferably, each of the multiple clip structures further includes an annular groove and a rubber sleeve. The annular groove is formed on the surface of the right clip and the left clip, and the rubber sleeve is fitted inside the annular groove.

[0010] Preferably, each of the multiple clamping structures further includes mating grooves, which are commonly provided on the surfaces of the right clamping piece and the left clamping piece, and the mating grooves are paired with the inner wall of the threaded groove and are threaded together.

[0011] Preferably, the clamping structure includes working grooves and clamping plates, with both working grooves being formed on one side of the surface of the anchor plate, and both clamping plates being slidably connected to the inner walls of the two working grooves.

[0012] Preferably, the clamping structure includes a fixing rod and a return spring. The two fixing rods are fixedly connected to the opposite sides of the two clamping plates, and the opposite ends of the two fixing rods extend through both sides of the inside of the anchor plate to the outside. The two return springs are fixedly connected to the opposite sides of the two clamping plates and the two working grooves, and the return springs are sleeved on the rod wall of the fixing rod.

[0013] Preferably, both sides of the inner walls of the two working slots are provided with fixing slots, and the inner walls of the multiple fixing slots are slidably connected with limiting blocks. The multiple limiting blocks are located on one side, with two blocks forming a group on opposite sides, and are respectively fixedly connected to the two sides of the surface of the two clamping plates.

[0014] The technical effects and advantages of this utility model are as follows: In use, the reinforcing bar is first placed inside the clamping structure. Then, the clamping structure is rotated and threaded to one side of the anchor plate surface. The threaded connection ensures that multiple clamping structures are stably installed on one side of the anchor plate surface. Simultaneously, as the anchor plate aligns with one side of the anchor pad surface, the clamping structures on both sides can be activated, allowing the anchor plate to precisely and stably align with one side of the anchor pad surface. This device avoids problems such as difficult hole calibration and easy anchorage deviation and vibration during installation, making the construction process convenient and improving stability. It also substantially reduces the risk of prestress loss and concrete cracking. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the anchor plate of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the clip structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the anchor plate of this utility model.

[0019] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of section A in the middle.

[0020] In the diagram: 1. Anchor plate; 2. Anchor plate; 201. Fixing hole; 202. Threaded groove; 3. Spiral reinforcement; 5. Grouting port; 6. Clamping structure; 601. Right clamping plate; 602. Left clamping plate; 603. Through hole; 604. Annular groove; 605. Rubber sleeve; 606. Butt joint; 7. Clamping structure; 701. Working groove; 702. Clamping plate; 703. Fixing rod; 704. Return spring; 8. Fixing groove; 9. Limiting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, an adjustable porous prestressed anchor in the first aspect embodiment of this utility model includes an anchor plate 1, anchor plates 2 on both sides of the surface, and spiral reinforcement 3. A grouting port 5 is provided on one side of the surface of the anchor plate 1, and multiple clamping structures 6 are provided on one side of the surface of the anchor plate 2. The clamping prestress can be increased by utilizing the docking effect of the two plates and the cooperation between the anchor plate 2, thereby reducing slippage and relaxation. A clamping structure 7 is provided on one side of the surface of the anchor plate 1, which can make the anchor plate 2 more precise and stable when docking with the anchor plate 1.

[0024] The technical effects achieved by the above embodiments are as follows: When using this utility model, the reinforcing bar is first placed inside the clamping structure 6, and then the clamping structure 6 is rotated and threaded to one side of the surface of the anchor plate 2. Through the effect of the threaded connection, multiple clamping structures 6 can be stably installed on one side of the surface of the anchor plate 2. Then, while the anchor plate 2 is aligned with one side of the surface of the anchor pad 1, the clamping structures 7 on both sides can be moved to make the anchor plate 2 accurately and stably aligned with one side of the surface of the anchor pad 1. This device avoids problems such as difficulty in calibrating the duct and easy deviation and vibration of the anchor during installation, making the construction process convenient and improving stability, and substantially reducing the risk of prestress loss and concrete cracking.

[0025] Example 2

[0026] like Figure 1 and Figure 2 As shown, an adjustable multi-hole prestressed anchor includes all the contents of Embodiment 1. In addition, the anchor plate 2 includes fixing holes 201 and threaded grooves 202. Multiple fixing holes 201 are opened on one side of the surface of the anchor plate 2, and multiple threaded grooves 202 are provided inside the fixing holes 201.

[0027] The technical effect achieved by the above embodiment is that the setting of the fixing hole 201 and the threaded groove 202 can generate a threaded connection with the surface of the right clamp 601 and the left clamp 602, thereby forming a stable docking effect.

[0028] Example 3

[0029] like Figures 1 to 3 As shown, an adjustable multi-hole prestressed anchor includes all the contents of Embodiment 2. In addition, multiple clamping structures 6 each include a right clamping piece 601, a left clamping piece 602, and a through hole 603. The right clamping piece 601 and the left clamping piece 602 are both located inside the fixing hole 201, and the through hole 603 is opened inside the right clamping piece 601 and the left clamping piece 602. Multiple clamping structures 6 also include an annular groove 604 and a rubber sleeve 605. The annular groove 604 is opened on the surface of the right clamping piece 601 and the left clamping piece 602, and the rubber sleeve 605 is sleeved inside the annular groove 604. Multiple clamping structures 6 also include a butt joint 606. The butt joint 606 is jointly located on the surface of the right clamping piece 601 and the left clamping piece 602, and the butt joint 606 is paired with the inner wall of the threaded groove 202 and is threaded.

[0030] The technical effect achieved by the above embodiment is as follows: When the clamping structure 6 is in use, the reinforcing bar is located inside the right clamping plate 601 and the left clamping plate 602. While clamping, the elasticity of the rubber sleeve 605 itself is used to allow the rubber sleeve 605 to be fitted inside the annular groove 604, so that the right clamping plate 601 and the left clamping plate 602 can achieve a stable initial connection. Finally, the right clamping plate 601 and the left clamping plate 602 are threadedly connected inside the threaded groove 202.

[0031] Example 4

[0032] like Figure 4 and Figure 5 As shown, an adjustable multi-hole prestressed anchor includes all the contents of Embodiment 3. In addition, the clamping structure 7 includes a working groove 701 and a clamping plate 702. Both working grooves 701 are opened on one side of the surface of the anchor plate 1. Both clamping plates 702 are slidably connected to the inner walls of the two working grooves 701. The clamping structure 7 includes a fixing rod 703 and a return spring 704. Both fixing rods 703 are fixedly connected to the opposite side of the two clamping plates 702. At the same time, the opposite ends of the two fixing rods 703 extend through both sides of the inside of the anchor plate 1 to the outside. Both return springs 704 are fixedly connected to the opposite side of the two clamping plates 702 and the two working grooves 701. At the same time, both return springs 704 are sleeved on the rod wall of the fixing rod 703.

[0033] The technical effect achieved by the above embodiment is as follows: when installing the anchor plate 2, the clamping plates 702 on both sides are first moved. By utilizing their sliding connection characteristics, the elasticity of the return springs 704 on both sides is used to clamp the anchor plate 2, thus forming a stable installation effect.

[0034] Example 5

[0035] like Figure 5 As shown, an adjustable porous prestressed anchor includes all the contents of Embodiment 4. In addition, two working grooves 701 have fixed grooves 8 on both sides of their inner walls. The inner walls of multiple fixed grooves 8 are slidably connected to limit blocks 9. The multiple limit blocks 9 are located on one side, with two blocks on each side of their opposite sides, which are respectively fixedly connected to the two sides of the surfaces of the two clamping plates 702.

[0036] The technical effect achieved by the above embodiments is that the sliding characteristic of the limiting block 9 enables the clamping plate 702 to move more stably and smoothly.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable porous prestressed anchor, comprising an anchor plate (1), anchor plates (2) provided on both sides of the surface, and spiral reinforcement (3), characterized in that: A grouting port (5) is provided on one side of the surface of the anchor plate (1), and multiple clamping structures (6) are provided on one side of the surface of the anchor plate (2). The clamping prestress can be increased by utilizing the docking effect of the two pieces and the cooperation between the anchor plate (2) to reduce slippage and relaxation. A clamping structure (7) is provided on one side of the surface of the anchor plate (1) to make the anchor plate (2) more accurate and stable when docking with the anchor plate (1).

2. The adjustable multi-hole prestressed anchorage according to claim 1, characterized in that: The anchor plate (2) includes fixing holes (201) and threaded grooves (202). The fixing holes (201) are all opened on one side of the surface of the anchor plate (2), and the threaded grooves (202) are all located inside the fixing holes (201).

3. An adjustable multi-hole prestressed anchorage according to claim 1, characterized in that: Each of the multiple clip structures (6) includes a right clip (601), a left clip (602), and a through hole (603). The right clip (601) and the left clip (602) are both located inside the fixing hole (201), and the through hole (603) is opened inside the right clip (601) and the left clip (602).

4. An adjustable multi-hole prestressed anchorage according to claim 3, characterized in that: Each of the multiple clip structures (6) further includes an annular groove (604) and a rubber sleeve (605). The annular groove (604) is formed on the surface of the right clip (601) and the left clip (602), and the rubber sleeve (605) is fitted inside the annular groove (604).

5. An adjustable multi-hole prestressed anchorage according to claim 4, characterized in that: Each of the multiple clamping structures (6) further includes a mating groove (606), which is provided on the surface of the right clamping piece (601) and the left clamping piece (602). The mating groove (606) is paired with the inner wall of the threaded groove (202) and is threaded.

6. An adjustable multi-hole prestressed anchorage according to claim 1, characterized in that: The clamping structure (7) includes a working groove (701) and a clamping plate (702). The two working grooves (701) are opened on one side of the surface of the anchor plate (1), and the two clamping plates (702) are slidably connected to the inner wall of the two working grooves (701).

7. An adjustable multi-hole prestressed anchorage according to claim 6, characterized in that: The clamping structure (7) includes a fixing rod (703) and a return spring (704). The two fixing rods (703) are fixedly connected to the opposite sides of the two clamping plates (702). At the same time, the opposite ends of the two fixing rods (703) extend outward through both sides inside the anchor plate (1). The two return springs (704) are fixedly connected to the opposite sides of the two clamping plates (702) and the two working grooves (701). At the same time, the return springs (704) are sleeved on the rod wall of the fixing rod (703).

8. An adjustable multi-hole prestressed anchorage according to claim 6, characterized in that: Both sides of the inner walls of the two working grooves (701) are provided with fixing grooves (8), and the inner walls of the multiple fixing grooves (8) are slidably connected with limiting blocks (9). The multiple limiting blocks (9) are located on one side, with two blocks forming a group on opposite sides, and are respectively fixedly connected to the two sides of the surface of the two clamping plates (702).

Images