An ultra-high strength prestressed anchor pad plate

Abstract

The utility model discloses a kind of superhigh strength prestressed anchor backing plate, including grouting passage, pressure plate, force transmission cylinder, dispersion ring and restraint ring, the bottom of pressure plate is equipped with force transmission cylinder, it is connected through fixed or detachable type between the pressure plate, the inner chamber of force transmission cylinder is equal cross section hollow structure, through hole is set up in pressure plate middle, connecting hole is set up in force transmission cylinder side wall, side edge is equipped with grouting passage, grouting passage is connected with connecting hole, force transmission cylinder outer wall is equipped with dispersion ring, its and concrete contact surface is diamond, and dispersion ring and force transmission cylinder are connected through fixed or detachable type, force transmission cylinder bottom inner wall is equipped with restraint ring, the load originally concentrated effect is dispersed transmission by dispersion ring and restraint ring, reduce force transmission concrete local stress concentration, reduce the stress peak value of local compression area, the inner circle of restraint ring is set into circular arc transition structure or inlay flexible material, protect steel strand, prevent injury steel strand when tensioning, prolong its service life.

Description

Technical Field

[0001] This utility model belongs to the field of anchor plate technology, and more specifically, relates to an ultra-high strength prestressed anchor plate. Background Technology

[0002] In recent years, my country's bridge and building structure design and construction technology has achieved leapfrog development. Prestressed technology, with its superior mechanical properties, has been deeply integrated into modern concrete engineering, becoming a core technological support for improving structural performance. Statistics show that in major projects such as cross-river and cross-sea bridges and super high-rise landmark buildings, over 85% of concrete components utilize prestressed technology. By applying prestress, it effectively counteracts tensile stress during the structural service life, significantly improving the load-bearing capacity, durability, and safety of components, while also optimizing construction costs and bringing significant economic benefits.

[0003] In the prestressed technology system, the prestress strength grade, as a core design parameter, directly relates to the service performance of concrete components and the total life-cycle cost of the project. As bridge engineering develops towards larger spans and super high-rise buildings towards greater heights, the requirements for prestress strength grades are constantly increasing. However, traditional prestressed systems are gradually becoming unable to meet the technical demands of these extreme engineering scenarios, thus hindering the advancement of infrastructure construction to higher levels.

[0004] From a technical perspective, the prestressed concrete system mainly consists of two core components: steel strands and the anchoring system. The anchoring system further encompasses many key components such as wedges, anchor rings, anchor plates, and spiral reinforcement. Although prestressed technology has achieved widespread application in engineering, the existing system faces significant bottlenecks in many key aspects, including improving load-bearing capacity, extending service life, and optimizing economic efficiency. Extensive engineering practice has repeatedly verified that these technical bottlenecks mainly focus on the force transmission performance of the anchoring system, particularly the crucial aspect of the anchor plate's efficiency in transmitting localized concrete pressure. Traditional anchor plates are mostly made of cast iron, a brittle material with relatively low tensile strength. They are also complex, heavy, and bulky, resulting in consistently high casting costs. Furthermore, traditional casting processes are not only energy-intensive but also highly polluting, severely impacting the environment. More importantly, traditional anchor plates suffer from severely insufficient efficiency in transmitting localized concrete pressure, which significantly restricts further improvements in prestressing strength. Utility Model Content

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this utility model provides an ultra-high strength prestressed anchor plate. Through the design and connection of the bearing plate, force transmission cylinder, dispersion ring, and constraint ring, it effectively manages and disperses the downward pressure generated by the force transmission cylinder during the stress process. The dispersion ring can initially diffuse the stress transmitted by the force transmission cylinder, distributing the originally concentrated load over a larger area, effectively reducing the impact on local structures and reducing local stress concentration. The remaining pressure that is not completely dispersed continues to be transmitted to the constraint ring, which further guides and evenly disperses it to the core concrete area at the bottom of the structure. This multi-level stress dispersion mechanism ensures the uniform distribution of stress in the structure, improving the overall stability and reliability of the structure.

[0006] To achieve the above objectives, this utility model provides an ultra-high strength prestressed anchor plate, including a grouting channel, a pressure plate, a force transmission cylinder, a dispersion ring, and a constraint ring. The pressure plate has a force transmission cylinder at its bottom, and the force transmission cylinder and the pressure plate are connected by a fixed connection or a detachable connection. The inner cavity of the force transmission cylinder is a hollow structure with a uniform cross-section. The pressure plate has a through hole in the middle, and the shape of the through hole is consistent with the shape of the inner cavity of the force transmission cylinder.

[0007] The force transmission cylinder has a connection hole on its side wall and a grouting channel on its side. The grouting channel is connected to the connection hole. The outer wall of the force transmission cylinder has a dispersion ring, and the dispersion ring is fixedly or detachably connected to the force transmission cylinder. The surface of the dispersion ring that contacts the concrete is rhomboid, which allows the anchor plate to be better embedded in the concrete. When the rhomboid contact surface contacts the concrete, it has a larger contact area and a more complex geometry, which can distribute the pressure more widely in the concrete, thereby effectively reducing the phenomenon of local stress concentration and reducing the stress peak in the local pressure area of ​​the concrete.

[0008] The bottom inner wall of the force transmission cylinder is provided with a constraint ring. The constraint ring restricts and guides the shape of the steel strand passing through its inner ring when it enters the anchor plate, ensuring that the steel strand maintains the correct direction and position during the process of entering the anchor plate, and avoiding deviation, twisting or excessive bending.

[0009] Furthermore, the central through hole at the top of the pressure plate is recessed inward to form an anchor plate mounting stop, and the diameter of the anchor plate mounting stop is slightly larger than that of the through hole.

[0010] Furthermore, the grouting channel is made of polymer material or steel, and its top inner wall is provided with pipe threads. The other end is connected to the force transmission cylinder by a fixed connection or a detachable connection.

[0011] Furthermore, the constraint ring and the force transmission cylinder are connected by a fixed connection or a detachable connection.

[0012] Furthermore, the inner ring of the constraint ring has a circular arc transition structure, or a flexible material is embedded in the inner ring of the constraint ring. The flexible material is a polymer material, specifically including but not limited to polytetrafluoroethylene, polyurethane, rubber, or nylon.

[0013] Furthermore, the pressure plate, force transmission cylinder, dispersion ring, and constraint ring are made of plastic materials, including but not limited to structural steel, cast steel, high-strength alloy steel, stainless steel, or aluminum alloy.

[0014] Furthermore, the downward pressure generated by the force transmission cylinder during the stress process is first initially diffused by the dispersion ring, so that the originally concentrated load can be distributed over a larger area, thereby reducing the impact on the local structure. The remaining pressure that is not completely dispersed is then transmitted to the constraint ring, which further guides and evenly disperses it to the core concrete area at the bottom of the structure.

[0015] Furthermore, the pressure plate and the through hole are circular, and the inner cavity of the force transmission cylinder is a circular structure with a uniform cross-section.

[0016] Furthermore, the pressure plate has a rectangular structure, and a rectangular through hole is provided in the middle of the pressure plate. A rectangular anchor plate installation stop is formed by a recess in the rectangular through hole. The inner cavity of the force transmission cylinder has a rectangular structure with a uniform cross section. A rectangular dispersion ring is provided on its outer side wall, and a rectangular constraint ring is provided on its bottom inner side wall. The junction of the two side walls of the constraint ring adopts an arc transition.

[0017] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0018] (1) The ultra-high strength prestressed anchor plate of this utility model, through the design and connection of the bearing plate, force transmission cylinder, dispersion ring and constraint ring, realizes the effective management and dispersion of the downward pressure generated by the force transmission cylinder during the force process. The dispersion ring can initially diffuse the stress transmitted by the force transmission cylinder, so that the originally concentrated load is distributed over a larger range, effectively reducing the impact on the local structure and reducing the phenomenon of local stress concentration. The remaining pressure that is not completely dispersed continues to be transmitted to the constraint ring, which is further guided and evenly dispersed to the core concrete area at the bottom of the structure. This multi-level stress dispersion mechanism ensures the uniform distribution of stress in the structure and improves the stability and reliability of the overall structure.

[0019] (2) The ultra-high strength prestressed anchor plate of this utility model sets the surface of the dispersion ring in contact with the concrete as rhombus. Compared with the traditional flat or circular contact surface, the rhombus contact surface can be better embedded in the concrete, increasing friction and mechanical interlocking force, thereby improving the overall anchoring performance of the structure and preventing the anchor plate from coming out of the concrete. When the rhombus contact surface is in contact with the concrete, it has a larger contact area and a more complex geometry, which can distribute the pressure more widely in the concrete, thereby effectively reducing the phenomenon of local stress concentration. By expanding the stress dispersion range, the stress peak value in the local pressure area of ​​the concrete can be significantly reduced, reducing the risk of concrete cracking caused by excessive local stress, thereby improving the integrity and durability of the concrete structure.

[0020] (3) The ultra-high strength prestressed anchor plate of this utility model restricts and guides the shape of the steel strand passing through the inner ring of the force transmission cylinder when it enters the anchor plate by setting a constraint ring on the inner side wall of the bottom. This ensures that the steel strand maintains the correct direction and position when entering the anchor plate, and avoids deviation, twisting or excessive bending. This not only improves the overall performance of the anchor plate, but also extends the service life of the steel strand and the anchor plate.

[0021] (4) The ultra-high strength prestressed anchor plate of this utility model can significantly reduce the damage such as scratches and cuts to the surface of the steel strand during the threading process by adopting a rounded transition structure at the corner position of the constraint ring or embedding flexible material in the inner ring of the constraint ring, thus maintaining its surface integrity. This helps to reduce the friction between the steel strand and the constraint ring, making the threading process smoother, improving construction efficiency and ease of operation. By effectively protecting the steel strand, the initial damage is reduced, thereby delaying the early failure problem caused by stress concentration during use and extending the service life of the structural components.

[0022] (5) The ultra-high strength prestressed anchor plate of this utility model, the pressure plate, the force transmission cylinder, the dispersion ring and the constraint ring are made of plastic materials. When subjected to external force, they can undergo significant plastic deformation, thereby effectively dispersing stress, avoiding local stress concentration, and significantly improving the overall stability and impact resistance of the structure. At the same time, the high strength and durability of these materials enable them to maintain good performance under various harsh environmental conditions, extend the service life of the structure, reduce structural damage caused by environmental factors or long-term use, and reduce maintenance costs. Compared with the traditional heavily polluting cast iron casting process, the processing and manufacturing process of plastic materials is usually cleaner than the cast iron casting process, producing fewer pollutants and waste, having less impact on the environment, and lower casting costs.

[0023] (6) The ultra-high strength prestressed anchor plate of this utility model has a force transmission cylinder with a constant cross-section shape. Compared with the variable cross-section force transmission cylinder, the force transmission cylinder is prone to stress concentration in the concrete due to its cross-section change, which leads to excessive local stress in the concrete and then cracks or splits, affecting the overall performance and durability of the structure. The constant cross-section force transmission cylinder can evenly distribute the pressure and ensure that the stress distribution of the concrete is more uniform during the stress process, thereby significantly improving the stress relationship between the anchor plate and the concrete. The manufacturing process of the constant cross-section shape of the force transmission cylinder is simpler, reducing the production difficulty and cost. Attached Figure Description

[0024] Figure 1 This is a front view of the structure of an ultra-high strength prestressed anchor plate according to an embodiment of the present invention;

[0025] Figure 2 This is a top view of the structure of an ultra-high strength prestressed anchor plate according to an embodiment of the present invention;

[0026] Figure 3 This is an isometric view of the structure of an ultra-high strength prestressed anchor plate according to an embodiment of the present invention;

[0027] Figure 4 This is a front view of the structure of an ultra-high strength prestressed anchor plate according to another embodiment of the present invention.

[0028] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-grouting channel, 2-pressure plate, 3-force transmission cylinder, 4-dispersion ring, 5-constraint ring, 6-anchor plate installation stop, 7-through hole, 8-connection hole. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1

[0031] like Figure 1-3As shown in the figure, this utility model embodiment provides an ultra-high strength prestressed anchor plate, including a grouting channel 1, a pressure plate 2, a force transmission cylinder 3, a dispersion ring 4, and a constraint ring 5. The pressure plate 2 has a force transmission cylinder 3 at its bottom, and the force transmission cylinder 3 is fixedly connected or detachably connected to the pressure plate 2. The inner cavity of the force transmission cylinder 3 is a circular hollow structure with a uniform cross-section. The pressure plate 2 has a circular through hole 7 in the middle, and the diameter of the through hole 7 is equal to the diameter of the inner wall of the force transmission cylinder 3. The side wall of the force transmission cylinder 3 has a connecting hole 8, and the side of the force transmission cylinder 3 has a grouting channel 1, which is connected to the connecting hole 8. The outer wall of the force transmission cylinder 3 has a dispersion ring 4, and the bottom inner wall has a constraint ring 5. This invention, through the combination of a pressure plate 2, a force transmission cylinder 3, a dispersion ring 4, a constraint ring 5, and a grouting channel 1 and a connecting hole 8, effectively manages and disperses the downward pressure generated by the force transmission cylinder 3 during the stress process. The dispersion ring 4 can initially diffuse the stress transmitted by the force transmission cylinder 3, so that the originally concentrated load is distributed over a larger area, effectively reducing the impact on the local structure and reducing the phenomenon of local stress concentration. The remaining pressure that is not completely dispersed continues to be transmitted to the constraint ring, which is further guided and evenly dispersed to the core concrete area at the bottom of the structure by the constraint ring 5. This multi-level stress dispersion mechanism ensures the uniform distribution of stress in the structure and improves the stability and reliability of the overall structure.

[0032] Furthermore, the dispersion ring 4 on the outer side of the force transmission cylinder 3 is connected to the force transmission cylinder 3 by a fixed connection or a detachable connection. Through the setting of the dispersion ring 4, the downward pressure of the bearing plate 2 is evenly distributed, avoiding local stress concentration and effectively reducing the stress peak in the local pressure area of ​​the concrete. This reduces the risk of cracking caused by excessive local stress in the concrete, improves the integrity and durability of the concrete structure, and reduces the additional costs associated with maintenance and repair. The connection method between the dispersion ring 4 and the force transmission cylinder 3 (fixed connection or detachable connection) can be selected according to specific construction conditions and requirements. Detachable connections (such as threaded connections) facilitate installation and disassembly, and are suitable for occasions requiring frequent adjustments or maintenance; fixed connections (such as welding) provide higher strength and stability, and are suitable for projects with high structural strength requirements. This flexible connection method improves the convenience and adaptability of construction.

[0033] Furthermore, the surface of the dispersion ring 4 that contacts the concrete is rhomboid. Compared to traditional flat or circular contact surfaces, the rhomboid contact surface can be better embedded in the concrete, increasing friction and mechanical interlocking force, thereby improving the overall anchoring performance of the structure and preventing the anchor plate from detaching from the concrete. On the other hand, the rhomboid contact surface has a larger contact area and a more complex geometry when in contact with the concrete, which can distribute the pressure more widely throughout the concrete, effectively reducing local stress concentration. By expanding the stress dispersion range, the stress peak value in the local pressure area of ​​the concrete can be significantly reduced, reducing the risk of concrete cracking caused by excessive local stress, thereby improving the integrity and durability of the concrete structure. The design of the rhomboid contact surface can effectively enhance the bonding force between the anchor plate and the concrete, thereby improving the stability of the entire structure.

[0034] Furthermore, the grouting channel 1 is made of polymer material or steel, with a pipe thread on its top inner wall. The other end is connected to the force transmission cylinder 3 via a fixed or detachable connection. During construction, the grouting pipe is connected to the upper pipe thread of the grouting channel 1, ensuring efficient grouting operations. The polymer material has excellent corrosion resistance and anti-aging properties, effectively resisting the influence of the external environment and extending the service life of the grouting channel. In addition, the polymer material has a low density, reducing the structure's weight and facilitating construction and installation. Steel has high strength and good mechanical properties, capable of withstanding significant pressure and impact, ensuring the stability and reliability of the grouting channel during use. Materials can be flexibly selected according to actual working conditions. The pipe thread structure enables… The system allows for quick and tight connection with grouting equipment or other piping systems, preventing grout leakage. It injects specially formulated cement grout into the prestressing ducts via a grouting pump through grouting channel 1, filling the gaps between the ducts and the prestressing tendons. This integrates the prestressing tendons with the concrete structure, ensuring the tendons are not corroded and effectively transferring prestress to the concrete. The connection method between grouting channel 1 and force transmission cylinder 3 (fixed or detachable connection) can be selected based on specific construction conditions and requirements. Fixed connections (such as adhesive connections) provide a stronger bond between grouting channel 1 and force transmission cylinder 3, ensuring structural stability during long-term use. Detachable connections (such as threaded connections) facilitate installation and disassembly, allowing for convenient adjustment and maintenance during construction and improving construction efficiency.

[0035] Furthermore, the bearing plate 2 has a circular structure, with a circular through hole 7 at its top center recessed inward to form a circular anchor plate mounting stop 6. The diameter of the anchor plate mounting stop 6 is slightly larger than that of the through hole 7. The anchor plate mounting stop 6 provides a limiting and positioning reference for the anchor plate, ensuring accurate alignment and stable placement during installation, preventing offset or tilting during construction, and improving installation accuracy. The structure of the anchor plate mounting stop 6 creates a tighter fit between the anchor plate and the bearing plate, which helps to evenly transfer the load, improves the stability and stress performance of the overall connection system, simplifies the anchor plate installation process, improves on-site construction efficiency, facilitates subsequent inspection and acceptance, ensures construction quality, and to a certain extent prevents grout from flowing back into the anchor plate area during grouting, avoiding affecting anchoring performance and improving structural durability and safety.

[0036] Furthermore, a constraint ring 5 is provided on the inner wall of the bottom of the force transmission cylinder 3. The constraint ring 5 is connected to the force transmission cylinder 3 by a fixed connection or a detachable connection. The fixed connection is usually made by welding, which has high strength and stability and is suitable for engineering scenarios with high requirements for structural stability. The detachable connection is made by threaded connection or other mechanical connection methods, which facilitates installation and disassembly and is suitable for construction scenarios that require frequent adjustment and maintenance. The main function of the constraint ring 5 is to restrict and guide the shape of the steel strand passing through its inner ring when it enters the anchor plate. Through the special design of the inner ring, it ensures that the steel strand maintains the correct direction and position during the process of entering the anchor plate, avoiding deviation, twisting or excessive bending. This restriction and guidance not only improves the overall performance of the anchoring system, but also extends the service life of the steel strand and the anchor plate. The design of the constraint ring 5 can be optimized and adjusted according to actual engineering needs, such as adjusting the inner diameter and shape according to the diameter and number of steel strands.

[0037] Furthermore, the inner ring of the constraint ring 5 has a circular arc transition structure, or the inner ring of the constraint ring 5 is inlaid with a flexible material, which is a polymer material, specifically including but not limited to polytetrafluoroethylene, polyurethane, rubber, or nylon. These materials have good wear resistance, shock absorption, and corrosion resistance, effectively protecting the steel strands from damage during the threading process. By adopting a circular arc transition structure or inlaying flexible polymer materials, scratches, cuts, and other damage to the surface of the steel strands during threading can be significantly reduced, maintaining its surface integrity. Since the damage to the steel strands during threading is effectively controlled, its original tensile strength, fatigue performance, and other key mechanical properties are well maintained, improving the safety and reliability of the overall structure. The application of flexible materials and the setting of the circular arc transition structure help reduce the friction between the steel strands and the constraint ring, making the threading process smoother and improving construction efficiency and ease of operation.

[0038] Specifically, the downward pressure generated by the force transmission cylinder 3 during the stress process is first initially diffused by the dispersion ring 4, allowing the originally concentrated load to be distributed over a larger area, thereby reducing the impact on the local structure. The remaining pressure that is not completely dispersed continues to be transmitted to the restraint ring 5, which further guides and evenly disperses it to the core concrete area in the lower part of the structure. This multi-stage load transfer and dispersion mechanism not only effectively improves the stability of the stress system, but also significantly reduces the risk of structural damage such as concrete cracking and crushing caused by stress concentration. This staged and progressively dispersed stress design makes the load more evenly distributed throughout the entire stress system, improving the overall structural bearing capacity and safety. At the same time, due to the more reasonable stress distribution, the durability and long-term performance of the key stress-bearing parts of the concrete are also effectively guaranteed.

[0039] Furthermore, the pressure plate 2, force transmission cylinder 3, dispersion ring 4, and constraint ring 5 are made of plastic materials, including but not limited to structural steel, cast steel, high-strength alloy steel, stainless steel, or aluminum alloy. Plastic materials can undergo significant plastic deformation under external force, effectively dispersing stress, avoiding localized stress concentration, and significantly improving the overall stability and impact resistance of the structure. Simultaneously, the high strength and durability of these materials allow them to maintain good performance under various harsh environmental conditions, extending the service life of the structure and reducing structural damage caused by environmental factors or long-term use, thus lowering maintenance costs. Compared to the traditional, heavily polluting cast iron casting process, the processing and manufacturing of plastic materials is generally cleaner, producing fewer pollutants and waste, having a smaller environmental impact, and lower casting costs. Secondly, plastic materials have good recyclability; waste plastic materials can be recycled and reused, reducing resource waste and conforming to the principles of sustainable development.

[0040] Furthermore, the force transmission cylinder 3 adopts a constant cross-sectional shape. Compared with a variable cross-sectional force transmission cylinder, the variable cross-section can easily cause stress concentration in the concrete, leading to excessive local stress and subsequent cracking or splitting, affecting the overall performance and durability of the structure. The constant cross-sectional force transmission cylinder 3 can evenly distribute pressure, ensuring a more uniform stress distribution in the concrete during stress application. This significantly improves the stress relationship between the anchor plate and the concrete. This uniform stress distribution not only enhances the stability and reliability of the structure but also makes it suitable for higher-level prestressed tensioning systems, meeting the requirements for higher strength and more complex working conditions. Simultaneously, the constant cross-sectional shape of the force transmission cylinder 3 simplifies the manufacturing process, reducing production difficulty and cost.

[0041] Example 2

[0042] like Figure 4As shown, this embodiment of the utility model provides another ultra-high strength prestressed anchor plate. In this embodiment, other contents are the same as those in Embodiment 1, except that: the bearing plate 2 is a rectangular structure, the bearing plate 2 has a rectangular through hole 7 in the middle, the rectangular through hole 7 is recessed to form a rectangular anchor plate mounting stop 6, the inner cavity of the force transmission cylinder 3 is a rectangular structure with a uniform cross section, its outer side wall is provided with a matching rectangular dispersion ring 4, and its bottom inner side wall is provided with a matching rectangular constraint ring 5, and the junction of the two side walls of the constraint ring 5 adopts an arc transition.

[0043] This utility model provides a method for manufacturing ultra-high strength prestressed anchor plates, including:

[0044] (1) Select suitable polymer materials or steel as the material of grouting channel 1, form the geometric shape of grouting channel 1 by injection molding, casting or welding, process the size matching the connecting hole 8 by machining, process the top pipe thread of grouting channel 1 by inserting bushing or machining, ensure that its inner and outer surfaces are smooth, reduce grouting resistance, select high-strength plastic materials, and prepare the pressure plate 2, force transmission cylinder 3, dispersion ring 4 and constraint ring 5 that meet the design requirements by turning, stamping, drilling, welding or casting, and make the inner ring of constraint ring 5 into a circular arc transition structure or inlay flexible material;

[0045] (2) The pressure plate 2 needs to be machined to have a structure with a central through hole 7 and an anchor plate mounting stop 6. Select a suitable connection method and install the pressure plate 2 on the top of the force transmission cylinder 3.

[0046] (3) Using a lathe or thread processing equipment, process pipe threads or treat the bonding surface on the upper part of the grouting channel 1, select threaded connection or bonding connection method, and connect the grouting channel 1 to the connecting hole 8 on the side of the force transmission cylinder 3.

[0047] (4) The dispersion ring 4 is installed on the outer wall of the force transmission cylinder 3 by welding or thread connection, and the constraint ring 5 is installed on the inner wall of the bottom of the force transmission cylinder 3 by welding or thread connection.

[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A high-strength prestressed anchor plate, characterized in that, It includes a grouting channel (1), a pressure plate (2), a force transmission cylinder (3), a dispersion ring (4), and a constraint ring (5). The pressure plate (2) has a force transmission cylinder (3) at its bottom, and the force transmission cylinder (3) and the pressure plate (2) are connected by a fixed connection or a detachable connection. The inner cavity of the force transmission cylinder (3) is a hollow structure with a uniform cross section. The pressure plate (2) has a through hole (7) in the middle, and the shape of the through hole (7) is consistent with the shape of the inner cavity of the force transmission cylinder (3). The force transmission cylinder (3) has a connecting hole (8) on its side wall and a grouting channel (1) on its side. The grouting channel (1) is connected to the connecting hole (8). The outer wall of the force transmission cylinder (3) is provided with a dispersion ring (4). The dispersion ring (4) is connected to the force transmission cylinder (3) by a fixed connection or a detachable connection. The surface of the dispersion ring (4) in contact with the concrete is rhomboid, which allows the anchor plate to be better embedded in the concrete. When the rhomboid contact surface is in contact with the concrete, it has a larger contact area and a more complex geometry, which can distribute the pressure more widely in the concrete, thereby effectively reducing the phenomenon of local stress concentration and reducing the stress peak in the local pressure area of ​​the concrete. The bottom inner wall of the force transmission cylinder (3) is provided with a constraint ring (5). The constraint ring (5) restricts and guides the shape of the steel strand passing through its inner ring when it enters the anchor plate, ensuring that the steel strand maintains the correct direction and position during the process of entering the anchor plate, and avoiding deviation, twisting or excessive bending.

2. The ultra-high strength prestressed anchor plate according to claim 1, characterized in that, The pressure plate (2) has a central through hole (7) at the top that is recessed inward to form an anchor plate mounting stop (6), and the diameter of the anchor plate mounting stop (6) is slightly larger than that of the through hole (7).

3. The ultra-high strength prestressed anchor plate according to claim 1, characterized in that, The grouting channel (1) is made of polymer material or steel, and its top inner wall is provided with pipe thread. The other end is connected to the force transmission cylinder (3) by a fixed connection or a detachable connection.

4. The ultra-high strength prestressed anchor plate according to claim 1, characterized in that, The constraint ring (5) and the force transmission cylinder (3) are connected by a fixed connection or a detachable connection.

5. The ultra-high strength prestressed anchor plate according to claim 4, characterized in that, The inner ring of the constraint ring (5) has a circular arc transition structure, or a flexible material is embedded in the inner ring of the constraint ring (5). The flexible material is a polymer material, specifically including but not limited to polytetrafluoroethylene, polyurethane, rubber or nylon.

6. A high-strength prestressed anchor plate according to any one of claims 1-5, characterized in that, The pressure plate (2), force transmission cylinder (3), dispersion ring (4) and constraint ring (5) are made of plastic materials, including but not limited to structural steel, cast steel, high-strength alloy steel, stainless steel or aluminum alloy.

7. A high-strength prestressed anchor plate according to any one of claims 1-5, characterized in that, The downward pressure generated by the force transmission cylinder (3) during the force process is first initially diffused by the dispersion ring (4), so that the originally concentrated load can be distributed over a larger range, thereby reducing the impact on the local structure. The remaining pressure that is not completely dispersed is then transmitted to the constraint ring (5), which further guides and evenly disperses it to the core concrete area at the bottom of the structure.

8. A high-strength prestressed anchor plate according to any one of claims 1-5, characterized in that, The pressure plate (2) and the through hole (7) are circular, and the inner cavity of the force transmission cylinder (3) is a circular structure with equal cross-section.

9. A high-strength prestressed anchor plate according to any one of claims 1-5, characterized in that, The pressure plate (2) is a rectangular structure. A rectangular through hole (7) is provided in the middle of the pressure plate (2). A rectangular anchor plate installation stop (6) is formed by the recess in the rectangular through hole (7). The inner cavity of the force transmission cylinder (3) is a rectangular structure with equal cross section. A rectangular dispersion ring (4) is provided on its outer side wall, and a rectangular constraint ring (5) is provided on its bottom inner side wall. The junction of the two side walls of the constraint ring (5) adopts a rounded transition.

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