Prestressed carbon fiber plate reinforcing and anchoring device capable of being repeatedly tensioned

Abstract

The invention discloses a prestressed carbon fiber plate reinforcing and anchoring device capable of being repeatedly tensioned, and relates to the field of building structure reinforcing, the prestressed carbon fiber plate reinforcing and anchoring device comprises a first fixing structure and a second fixing structure, one side of the first fixing structure is fixedly connected with two groups of first combination blocks, and the front end of the first fixing structure is fixedly connected with two groups of second combination blocks; first combination grooves are formed in the positions, corresponding to the first combination blocks, of the two sides of the second fixing structure, and after the prestressed carbon fiber plate is reinforced through a built-in lead screw of the device, when the prestress is lost or needs to be adjusted, the carbon fiber plate can be tensioned again only by controlling the torsion direction of the stepping motor; meanwhile, the upper clamping plate and the lower clamping plate are provided with anti-skid lines, friction force between the clamping plates and the carbon fiber plate is increased, slippage of the carbon fiber plate is effectively prevented, meanwhile, the device is simple in fixing mode and convenient to mount and dismount, the tensioning process can be accurately controlled through a motor, and construction efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the field of building structure reinforcement, in particular to a prestressed carbon fiber plate reinforcement anchoring device capable of repeated tensioning. Background Art

[0002] In building structure reinforcement projects, prestressed carbon fiber plate reinforcement technology is widely used due to its advantages such as high strength, light weight, and corrosion resistance. Prestressed carbon fiber plates are fixed to the reinforced structure through anchoring devices and apply prestress to improve the structure's load-bearing capacity and crack resistance.

[0003] However, existing anchoring devices for prestressed carbon fiber panels often have several drawbacks. For one thing, many anchoring devices cannot be re-tensioned after the carbon fiber panels have been tensioned. Once the prestress is lost or the prestress needs to be adjusted, the entire anchoring device or carbon fiber panel must be replaced, which not only increases project costs but also prolongs the construction period. Furthermore, some anchoring devices offer suboptimal anchoring performance. Over long-term use, the carbon fiber panels are prone to slippage or anchor failure, compromising the reinforcement and structural safety. Summary of the Invention

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A prestressed carbon fiber plate reinforcement and anchoring device that can be repeatedly tensioned, comprising a first fixed structure and a second fixed structure, wherein two groups of first combination blocks are fixedly connected to one side of the first fixed structure, two groups of second combination blocks are fixedly connected to the front end of the first fixed structure, first combination grooves are opened on both sides of the second fixed structure corresponding to the first combination blocks, two groups of second combination grooves are opened at the front end of the second fixed structure corresponding to the two groups of the second combination blocks, and the first fixed structure is combined with the second fixed structure by inserting the second combination block into the second combination groove.

[0005] Preferably, the first fixing structure and the second fixing structure are identical in structure.

[0006] Preferably, the first fixing structure includes a fixing plate, a motor bracket is fixedly connected to one side of the top of the fixing plate, a stepper motor is fixedly connected inside the motor bracket, a first fixing seat and a second fixing seat are fixedly connected to both sides of the top of the fixing plate respectively, the stepper motor output shaft is fixedly connected to a reducer, the output end of the reducer is fixedly connected to a screw rod, the two ends of the screw rod are respectively threadedly connected to the first fixing seat and the second fixing seat, two groups of limit rods are fixedly connected between the first fixing seat and the second fixing seat, the surfaces of the two groups of limit rods are slidably connected to fixing clamps, and the fixing clamps are threadedly connected to the screw rod.

[0007] Preferably, the fixing clamp includes a lower splint, a first anti-slip groove is provided at the top of the lower splint, two groups of screws are fixedly connected inside the lower splint, the surfaces of the two groups of screws are slidably connected to the upper splint, a second anti-slip groove is provided at the bottom of the upper splint, and the surfaces of the two groups of screws are threadedly connected to a group of limit nuts.

[0008] Preferably, the second anti-slip groove provided at the bottom end of the upper clamping plate and the first anti-slip groove provided at the top end of the lower clamping plate are designed to be staggered with each other.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention proposes a prestressed carbon fiber plate reinforcement and anchoring device that can be repeatedly tensioned. The built-in screw rod of the device enables the carbon fiber plate to be re-tensioned by simply controlling the torque direction of the stepper motor when the prestress is lost or the prestress needs to be adjusted after the prestressed carbon fiber plate is reinforced. At the same time, the upper and lower sets of splints are provided with anti-slip grooves, which increase the friction between the carbon fiber plate and the carbon fiber plate, effectively preventing the carbon fiber plate from slipping. At the same time, the fixing method of the device is simple and the installation and disassembly are convenient. The tensioning process can be precisely controlled by the motor, thereby improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings:

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 For the present invention Figure 1 Structural diagram from another perspective;

[0014] Figure 3 This is a schematic diagram of the combination of the present invention Figure 1 ;

[0015] Figure 4 This is a schematic diagram of the combination of the present invention Figure 2 .

[0016] As shown in the figure: 1. First fixed structure; 11. Fixed plate; 12. Motor bracket; 13. Stepper motor; 14. Reducer; 15. Screw; 16. First fixed seat; 17. Second fixed seat; 18. Limit rod; 19. Fixing fixture; 191. Lower clamp; 192. Screw; 193. Limit nut; 194. Upper clamp; 2. Second fixed structure; 3. First combination block; 4. Second combination block; 5. First combination slot; 6. Second combination slot. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0018] See also Figures 1 to 4 The present invention provides a technical solution: a prestressed carbon fiber plate reinforcement anchoring device that can be repeatedly tensioned, comprising a first fixed structure 1 and a second fixed structure 2, wherein two groups of first assembly blocks 3 are fixedly connected to one side of the first fixed structure 1, and two groups of second assembly blocks 4 are fixedly connected to the front end of the first fixed structure 1. First assembly grooves 5 are opened on both sides of the second fixed structure 2 corresponding to the first assembly blocks 3, and two groups of second assembly grooves 6 are opened on the front end of the second fixed structure 2 corresponding to the two groups of second assembly blocks 4. The first fixed structure 1 is combined with the second fixed structure 2 by inserting the second assembly blocks 4 into the second assembly grooves 6;

[0019] The built-in screw rod 15 of the device allows the carbon fiber plate to be re-tensioned after the prestressed carbon fiber plate is reinforced, when the prestress is lost or the prestress needs to be adjusted, only the torque direction of the stepping motor 13 needs to be controlled. At the same time, the upper and lower sets of clamping plates are provided with anti-slip grooves, which increase the friction between the carbon fiber plate and the carbon fiber plate, effectively preventing the carbon fiber plate from slipping. At the same time, the fixing method of the device is simple, and it is easy to install and disassemble. The tensioning process can be precisely controlled by the motor, thereby improving construction efficiency and quality.

[0020] The first fixing structure 1 and the second fixing structure 2 have the same structure;

[0021] The first fixing structure 1 includes a fixing plate 11, a motor bracket 12 is fixedly connected to one side of the top of the fixing plate 11, a stepping motor 13 is fixedly connected to the inside of the motor bracket 12, a first fixing seat 16 and a second fixing seat 17 are fixedly connected to both sides of the top of the fixing plate 11, the output shaft of the stepping motor 13 is fixedly connected to the reducer 14, the output end of the reducer 14 is fixedly connected to the screw rod 15, the two ends of the screw rod 15 are respectively threadedly connected to the first fixing seat 16 and the second fixing seat 17, two groups of limiting rods 18 are fixedly connected between the first fixing seat 16 and the second fixing seat 17, the surfaces of the two groups of limiting rods 18 are slidably connected to fixing clamps 19, and the fixing clamps 19 are threadedly connected to the screw rod 15;

[0022] When in use, the two ends of the carbon fiber plate are clamped and fixed in the fixing clamps 19 of the first fixing structure 1 and the second fixing structure 2, and the stepper motor 13 is used to drive the screw rod 15 to rotate, and the screw rod 15 is used to drive the fixing clamp 19 to slide on the surface of the fixing plate 11. The two sets of fixing clamps 19 are moved outward to achieve tensioning of the two ends of the carbon fiber plate. When repeated tensioning is performed, the two sets of stepper motors 13 are reversed to relax the two ends of the carbon fiber plate, and then continue to rotate forward, and repeat this process to achieve repeated tensioning of the carbon fiber plate. After the repeated tensioning is completed, the stepper motor 13 is locked again to keep the tensioning force stable.

[0023] The stepper motor 13 uses a PKP246D2-SG2.2 model from Oriental Motor. Under rated voltage and current, its maximum output power can reach hundreds of watts, and it can provide torque ranging from several to tens of Newtons. The reducer 14 has a ratio of 100:1. The stepper motor 13 and the reducer 14 can generate tensile forces ranging from hundreds to thousands of Newtons. Prestressed reinforcement of carbon fiber plates typically requires tensile forces ranging from several hundred to several thousand Newtons, which easily meets the requirements.

[0024] The fixing fixture 19 includes a lower clamping plate 191, a first anti-slip groove is formed at the top of the lower clamping plate 191, two sets of screws 192 are fixedly connected inside the lower clamping plate 191, and the surfaces of the two sets of screws 192 are slidably connected to the upper clamping plate 194, and a second anti-slip groove is formed at the bottom of the upper clamping plate 194. A set of limit nuts 193 are threadedly connected to the surfaces of the two sets of screws 192;

[0025] The second anti-slip groove at the bottom of the upper clamping plate 194 and the first anti-slip groove at the top of the lower clamping plate 191 are designed to be staggered.

[0026] When clamping the carbon fiber plate, place the carbon fiber plate between the upper clamping plate 194 and the lower clamping plate 191, and screw the two sets of limit nuts 193 downward on the surface of the screw 192, so that the upper clamping plate 194 and the lower clamping plate 191 fully clamp the upper and lower ends of the carbon fiber plate. The through-holes opened on both sides of the upper clamping plate 194 corresponding to the screw 192 are slightly larger than the diameter of the screw 192, so that it can slide smoothly on the surface of the screw 192;

[0027] When the carbon fiber plate is tensioned at other angles, the first fixing structure 1 and the second fixing structure 2 can be assembled horizontally by inserting the first assembly block 3 into the first assembly groove 5 (e.g. Figure 4 As shown), the carbon fiber plate can be stretched obliquely to meet the needs of different usage scenarios.

[0028] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the above aspects of the present invention, which are not provided in detail for the sake of simplicity.

[0029] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0030] The contents not described in detail in this specification do not contribute to any improvement in the present application and belong to the prior art known to those skilled in the art, so they are not described in detail.

Claims

1. A repeatable prestressed carbon fiber plate reinforcement anchoring device, characterized by: The invention comprises a first fixed structure (1) and a second fixed structure (2), wherein two groups of first combination blocks (3) are fixedly connected to one side of the first fixed structure (1), two groups of second combination blocks (4) are fixedly connected to the front end of the first fixed structure (1), first combination grooves (5) are provided on both sides of the second fixed structure (2) corresponding to the first combination blocks (3), and two groups of second combination grooves (6) are provided on the front end of the second fixed structure (2) corresponding to the two groups of the second combination blocks (4), and the first fixed structure (1) is combined with the second fixed structure (2) by inserting the second combination blocks (4) into the second combination grooves (6).

2. The repeatable tensioning prestressed carbon fiber plate reinforcement anchoring device according to claim 1, characterized in that: The first fixing structure (1) and the second fixing structure (2) have the same structure.

3. The repeatable tensioning prestressed carbon fiber plate reinforcement anchoring device according to claim 2, characterized in that: The first fixing structure (1) comprises a fixing plate (11), a motor bracket (12) is fixedly connected to one side of the top of the fixing plate (11), a stepping motor (13) is fixedly connected inside the motor bracket (12), a first fixing seat (16) and a second fixing seat (17) are fixedly connected to both sides of the top of the fixing plate (11), an output shaft of the stepping motor (13) is fixedly connected to a reducer (14), an output end of the reducer (14) is fixedly connected to a screw rod (15), two ends of the screw rod (15) are respectively threadedly connected to the first fixing seat (16) and the second fixing seat (17), two groups of limiting rods (18) are fixedly connected between the first fixing seat (16) and the second fixing seat (17), the surfaces of the two groups of limiting rods (18) are slidably connected to fixing clamps (19), and the fixing clamps (19) are threadedly connected to the screw rod (15).

4. The repeatable tensioning prestressed carbon fiber plate reinforcement anchoring device according to claim 3, characterized in that: The fixing clamp (19) includes a lower clamp (191), a first anti-slip groove is provided at the top of the lower clamp (191), two groups of screw rods (192) are fixedly connected inside the lower clamp (191), the surfaces of the two groups of screw rods (192) are slidably connected to an upper clamp (194), a second anti-slip groove is provided at the bottom of the upper clamp (194), and the surfaces of the two groups of screw rods (192) are both threadedly connected to a group of limit nuts (193).

5. The repeatable tensioning prestressed carbon fiber plate reinforcement anchoring device according to claim 4, characterized in that: The second anti-slip groove provided at the bottom end of the upper clamping plate (194) and the first anti-slip groove provided at the top end of the lower clamping plate (191) are designed to be staggered with each other.

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