A prestressed carbon fiber plate anchoring device for reinforcing a concrete beam

Abstract

The utility model relates to carbon fiber plate anchoring technical field, specifically disclose a kind of prestressed carbon fiber plate anchoring device for reinforcing concrete beam, comprising: anchor plate, anchor plate is provided with two;Further include: carbon fiber plate, carbon fiber plate is set between two anchor plates;Anchor block, anchor block is set to the outside of anchor block;Jack pushes and pulls traction plate, so that its transmission and extrude two first pull rod, push the fixed plate that is movably connected by movable shaft, push anchor plate by fixed plate, realize the prestress of carbon fiber plate to add, and under the action of two first pull rod, carbon fiber plate can be dispersed anchor plate fixed pressure, uniform tension, and significantly reduce anchor stress, avoid the situation that anchor plate partial concentratedly bears excessive pressure, lead to anchor plate breakage, and two second pull rod respectively limit the position of two first pull rod, so that first pull rod can move steadily, ensure that anchor plate is stable in tensioning process, prevent tensioning assembly excessive movement, lead to the problem that carbon fiber plate has crack.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber plate anchoring technology, specifically a prestressed carbon fiber plate anchoring device for reinforcing concrete beams. Background Technology

[0002] The prestressed carbon fiber plate anchoring device is the core component of the prestressed carbon fiber plate reinforcement system. It achieves a reliable connection between the carbon fiber plate and the concrete structure through the principle of frictional anchoring, and possesses significant advantages such as high-efficiency anchoring, convenient construction, and economic and environmental benefits. It is widely used in the reinforcement of bridges, buildings, and other structures. Furthermore, due to its high-efficiency anchoring, lightweight yet high-strength properties, and corrosion resistance, it demonstrates broad application potential in the field of civil engineering reinforcement. However, during the tensioning process, the anchor plate is subjected to concentrated pressure locally. Under excessive pressure or improper construction, local stress concentration may cause the carbon fiber plate to crush and break easily. Therefore, we propose a prestressed carbon fiber plate anchoring device for reinforcing concrete beams. Utility Model Content

[0003] The purpose of this invention is to provide a prestressed carbon fiber plate anchoring device for reinforcing concrete beams, in order to solve the problem mentioned in the background art that the anchor plate is subjected to concentrated pressure locally during the tensioning process, and that the carbon fiber plate may be crushed and easily broken under excessive pressure or improper construction.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prestressed carbon fiber plate anchoring device for reinforcing concrete beams, comprising: anchor plates, wherein two anchor plates are provided; Also includes: Carbon fiber plate, which is placed between two anchor plates; Anchor blocks are located on the outside of the anchor block and are used to fix the carbon fiber plate. The tensioning assembly is located on one side of one of the anchor plates. The tensioning assembly converts hydraulic thrust into axial tension by pushing and pulling one of the anchor plates, thereby applying prestress to the carbon fiber plate. The tensioning assembly includes a traction plate, with first tie rods movably connected to both ends of the traction plate. Second tie rods are rotatably connected to the left and right sides of the two first tie rods. A jack is installed at the rear end of the traction plate.

[0005] Among them, multiple fixing blocks are fixedly connected to the outer walls on both sides of the two anchor blocks, and the outer walls of the multiple fixing blocks are provided with first expansion grooves, and the interior of the first expansion grooves is provided with connecting eccentric rods.

[0006] The anchor plate and the anchor block are designed to be fitted together. The anchor plate has a second expansion groove on both sides. The internal size of the second expansion groove is larger than the external size of the fixed block. The eccentric rod is fixedly connected to the anchor plate.

[0007] Each of the two anchor plates has an installation plate fitted to its rear end, and the installation plate and the anchor plate are connected by a threaded installation screw.

[0008] The bottom ends of the first and second pull rods are rotatably connected to the movable shaft, and the bottom ends of the movable shaft are fixedly connected to the fixed plates. The two ends of the two fixed plates are slidably connected to the positioning rods.

[0009] The bottom ends of the two positioning rods are fixedly connected with connecting screws, which are threadedly connected to the anchor plate.

[0010] One of the anchor plates has movable screws at both ends, and a fixing frame is fixedly connected between the two movable screws. Both ends of the two fixing frames are threaded with reinforcing rods.

[0011] The bottom ends of the two movable screws penetrate the anchor plate, and the bottom ends of the two movable screws are threaded with reinforcing nuts.

[0012] This utility model has at least the following beneficial effects: The jack pushes and pulls the traction plate, causing it to transmit and compress the two first tie rods. This pushes the fixed plate, which is movably connected by a movable shaft. The fixed plate then pushes the anchor plate, thus applying prestress to the carbon fiber plate. Under the action of the two first tie rods, the anchor plate fixing pressure is dispersed, the tension is evenly distributed, and the post-anchor stress is significantly reduced. This avoids the anchor plate being subjected to excessive pressure in a localized area, which could lead to anchor plate damage. Furthermore, the two second tie rods restrict the position of the two first tie rods, allowing the first tie rods to move smoothly. This ensures the stability of the anchor plate during tensioning and prevents excessive movement of the tensioning components, which could cause cracks in the carbon fiber plate. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the exploded structure of the anchor plate and carbon fiber plate of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the movable screw of this utility model; Figure 5 This is a schematic diagram of the mounting plate structure of this utility model; Figure 6 This is a schematic diagram of the tensioning component structure of this utility model.

[0014] In the diagram: 001, Anchor plate; 002, Carbon fiber plate; 003, Anchor block; 004, Tensioning assembly; 110, Mounting plate; 120, Mounting screw; 130, Movable screw; 140, Fixing frame; 150, Reinforcing rod; 160, Reinforcing nut; 310, Fixing block; 320, First expansion groove; 330, Eccentric rod; 340, Second expansion groove; 401, Traction plate; 402, First tie rod; 403, Second tie rod; 404, Jack; 410, Movable shaft; 420, Fixing plate; 430, Positioning rod; 440, Connecting screw. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figures 1 to 6 This utility model provides a technical solution: a prestressed carbon fiber plate anchoring device for reinforcing concrete beams, comprising: anchor plate 001, wherein two anchor plates 001 are provided; Also includes: Carbon fiber plate 002 is disposed between two anchor plates 001; Anchor block 003, anchor block 003 is set on the outside of anchor block 002, and anchor block 003 is used to fix carbon fiber plate 002; Tensioning component 004 is disposed on one side of one of the anchor plates 001. Tensioning component 004 converts hydraulic thrust into axial tension by pushing and pulling one of the anchor plates 001, thereby applying prestress to carbon fiber plate 002. Tensioning component 004 includes traction plate 401. Both ends of traction plate 401 are movably connected to first tie rod 402. The left and right sides of the two first tie rods 402 are rotatably connected to second tie rods 403. Jack 404 is installed at the rear end of traction plate 401.

[0017] In this process, the construction personnel can install the tensioning component 004 at the rear end of one of the anchor plates 001, activate the jack 404 to push and pull the traction plate 401, and the traction plate 401 drives the first tie rod 402. By squeezing the two first tie rods 402, the traction plate 402 pushes the fixed plate 420, which is movably connected by the movable shaft 410. The fixed plate 420 pushes the anchor plate 001, thereby applying prestress to the carbon fiber plate 002. Under the action of the two first tie rods 402, the pressure on the anchor plate 001 can be distributed, preventing the anchor plate 001 from being damaged due to excessive pressure in some areas. In addition, the two second tie rods 403 restrict the position of the two first tie rods 402 respectively, so that the first tie rods 402 can move smoothly, ensuring the stability of the anchor plate 001 during the tensioning process and preventing the tensioning component 004 from moving excessively, which could cause cracks in the carbon fiber plate 002.

[0018] Multiple fixing blocks 310 are fixedly connected to the outer walls on both sides of the two anchor blocks 003. The outer walls of the multiple fixing blocks 310 are provided with first expansion grooves 320, and the interior of the first expansion grooves 320 is provided with connecting eccentric rods 330.

[0019] Anchor plate 001 and anchor block 003 are fitted together. Anchor plate 001 has a second expansion groove 340 on both sides. The internal size of the second expansion groove 340 is larger than the external size of the fixing block 310. Eccentric rod 330 is fixedly connected to anchor plate 001.

[0020] Among them, the anchor plate 001 and the anchor block 003 compress the carbon fiber plate 002 to fix the two ends of the carbon fiber plate 002. With the cooperation of the first expansion groove 320 and the second expansion groove 340, it is easy to improve the compressive strength of the carbon fiber plate 002, so that the carbon fiber plate 002 can move within a certain range, protect the ends of the carbon fiber plate 002, and prevent damage caused by stress concentration.

[0021] The rear ends of both anchor plates 001 are fitted with mounting plates 110, and mounting bolts 120 are threadedly connected between the mounting plates 110 and the anchor plates 001.

[0022] Among them, the two mounting plates 110 protect the two anchor plates 001 respectively. When the anchor plate 001 bears pressure, the pressure is directly fed back to the mounting plate 110 instead of the concrete beam, thereby protecting the building.

[0023] The bottom ends of the first pull rod 402 and the second pull rod 403 are rotatably connected to the movable shaft 410. The bottom end of the movable shaft 410 is fixedly connected to the fixing plate 420. The two ends of the two fixing plates 420 are slidably connected to the positioning rod 430.

[0024] The bottom ends of the two positioning rods 430 are fixedly connected to the connecting screws 440, which are threadedly connected to the anchor plate 001.

[0025] The two positioning rods 430 respectively limit the two fixing plates 420, and at the same time facilitate the linkage effect between the first tie rod 402 and the second tie rod 403. The two positioning rods 430 respectively pass through the two ends of the two fixing plates 420. When it is necessary to disassemble or install the tensioning assembly 004, the positioning rods 430 are rotated to cancel or fix the connection between the positioning rods 430 and the two ends of the anchor plate 001, so as to facilitate the repeated use of the tensioning assembly 004.

[0026] Example 2 like Figure 4 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that each of the anchor plates 001 has a movable screw 130 at both ends, and a fixing frame 140 is fixedly connected between the two movable screws 130. Both ends of the two fixing frames 140 are threadedly connected with a reinforcing rod 150.

[0027] The bottom ends of the two movable screws 130 penetrate the anchor plate 001, and the bottom ends of the two movable screws 130 are threaded with reinforcing nuts 160.

[0028] Construction workers can first insert two reinforcing rods 150 through both sides of the fixing frame 140 and connect the concrete beam through the reinforcing rods 150. First, fix the two movable screws 130 and limit the anchor plate 001 through the two movable screws 130, so that the anchor plate 001 can move within a certain range of motion to prevent the carbon fiber plate 002 from deforming during tensioning. The reinforcing nut 160 can tighten the bottom end of the movable screw 130 to further fix the anchor plate 001.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prestressed carbon fiber plate anchoring device for reinforcing concrete beams, comprising: Anchor plate (001), two anchor plates (001) are provided; Its characteristic is that it also includes: A carbon fiber plate (002) is disposed between two anchor plates (001); Anchor block (003), the anchor block (003) is disposed on the outside of the anchor block (003), the anchor block (003) is used to fix the carbon fiber plate (002); Tensioning assembly (004) is disposed on one side of one of the anchor plates (001). The tensioning assembly (004) converts hydraulic thrust into axial tension by pushing and pulling one of the anchor plates (001), thereby applying prestress to the carbon fiber plate (002). The tensioning assembly (004) includes a traction plate (401). Both ends of the traction plate (401) are movably connected to a first tie rod (402). The left and right sides of the two first tie rods (402) are rotatably connected to a second tie rod (403). A jack (404) is installed at the rear end of the traction plate (401).

2. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 1, characterized in that: Multiple fixing blocks (310) are fixedly connected to the outer walls on both sides of the two anchor blocks (003). The outer walls of the multiple fixing blocks (310) are provided with a first expansion groove (320). An eccentric rod (330) is provided inside the first expansion groove (320).

3. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 2, characterized in that: The anchor plate (001) and the anchor block (003) are configured to be fitted together. The anchor plate (001) has a second expansion groove (340) on both sides. The internal size of the second expansion groove (340) is larger than the external size of the fixed block (310). The eccentric rod (330) is fixedly connected to the anchor plate (001).

4. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 1, characterized in that: The rear ends of the two anchor plates (001) are fitted with mounting plates (110), and mounting screws (120) are threadedly connected between the mounting plates (110) and the anchor plates (001).

5. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 1, characterized in that: The bottom ends of the first pull rod (402) and the second pull rod (403) are rotatably connected to the movable shaft (410), and the bottom end of the movable shaft (410) is fixedly connected to a fixing plate (420). The two ends of the two fixing plates (420) are slidably connected to a positioning rod (430).

6. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 5, characterized in that: The bottom ends of the two positioning rods (430) are fixedly connected to connecting screws (440), which are threadedly connected to the anchor plate (001).

7. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 1, characterized in that: One of the anchor plates (001) is provided with movable screws (130) at both ends, and a fixed frame (140) is fixedly connected between the two movable screws (130). A reinforcing rod (150) is threadedly connected to both ends of the two fixed frames (140).

8. The prestressed carbon fiber plate anchoring device for reinforcing concrete beams according to claim 7, characterized in that: The bottom ends of the two movable screws (130) penetrate the anchor plate (001), and the bottom ends of the two movable screws (130) are threaded with reinforcing nuts (160).

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