Prestressed carbon fiber plate anchoring device

Abstract

The utility model discloses a prestressed carbon fiber plate tensioning and anchoring device which comprises a fixing anchor part and a tensioning anchor part which are arranged at the two ends of a carbon fiber plate and used for fixing the carbon fiber plate, and is characterized in that a moving block is slidably connected into the tensioning anchor part; clamping pieces for clamping the end parts of the carbon fiber plate are respectively embedded in the movable block and the fixed anchor piece; a pushing assembly used for tensioning treatment is arranged between the moving block and the tensioning anchor piece. The problems that in the prior art, a carbon fiber anchorage device is tedious to disassemble and assemble in the using process, so that the anchoring efficiency is reduced, the situation that a carbon fiber plate slides or falls off in the carbon fiber anchorage device easily occurs in the tensioning process, the tensioning effect is insufficient, and consequently the ideal reinforcing effect cannot be achieved are solved.

Description

Technical Field

[0001] This application relates to the technical field of anchor devices, and particularly to a prestressed carbon fiber plate anchoring device. Background Art

[0002] As a new type of high-strength material, prestressed carbon fiber plates have broad application prospects in the field of active reinforcement technology for civil engineering. Compared with traditional concrete passive reinforcement technology, it can give full play to the characteristics of carbon fiber being lightweight and high-strength, greatly improve the strength of concrete structures, effectively reduce their stress and deflection deformation, delay the cracking speed of beam bodies, reduce and close cracks, greatly improve the bearing capacity of structures, and improve their durability. However, reliable anchoring devices are required for prestressed carbon fiber plates to achieve their active reinforcement effect.

[0003] The patent with the publication number CN216340469U discloses a detachable anchor for prestressed carbon fiber plates, including a first end and a second end. The first end is movably connected to the second end through a carbon fiber plate. Place the first end and the second end in appropriate positions, insert the two ends of the carbon fiber plate into the slot in the first end and the side slot in the second end respectively. By manually pushing the push plate, the connecting plate is pushed. The pushing of the connecting plate pushes the clamping piece, so that the clamping piece moves in the slot. With the movement of the clamping piece, the opening of the clamping piece is stuck on both side walls of the carbon fiber plate. After the clamping is completed, the push plate is penetrated and fixed through a connecting bolt. The carbon fiber plate located in the side slot is fixed through a reinforcing piece, and the reinforcing piece is further reinforced through a pin shaft. At this time, the reinforcing piece can be included therein through a plug-in. After the installation is completed, the push plate is connected to one side of the second end through a fastening bolt, and the equipment of the device is completed.

[0004] The carbon fiber anchor in cases such as the above is relatively cumbersome to disassemble and assemble during actual disassembly, has insufficient tensioning ability, and the clamping of the carbon fiber plate is also unstable. It may slide or fall off during the tensioning process, which will not only affect the anchoring quality but also the tensioning effect, so as to achieve the ideal reinforcement effect. Summary of the Utility Model

[0005] By providing a prestressed carbon fiber plate anchoring device in the embodiments of this application, the problems in the prior art that the carbon fiber anchor is relatively cumbersome to disassemble and assemble during use, thereby reducing the anchoring efficiency, and that the carbon fiber plate is prone to slide or fall off inside during the tensioning process, resulting in insufficient tensioning effect and thus unable to achieve the ideal reinforcement effect are solved.

[0006] An embodiment of the utility model provides a prestressed carbon fiber plate anchoring device, which includes a fixed anchor and a tensioning anchor arranged at both ends of the carbon fiber plate for fixing the carbon fiber plate. The characteristics are as follows: a moving block is slidably connected in the tensioning anchor; clamping members for clamping the end of the carbon fiber plate are respectively embedded in the moving block and the fixed anchor; a pushing assembly for tensioning treatment is arranged between the moving block and the tensioning anchor.

[0007] In a possible implementation manner, a first insertion hole is penetrated in the fixed anchor, and the cross-sectional dimension of the first insertion hole gradually decreases in the direction close to the tensioning anchor; a second insertion hole is penetrated in the moving block, and the cross-sectional dimension of the second insertion hole gradually decreases in the direction close to the fixed anchor; the clamping members are all arranged in the first insertion hole and the second insertion hole.

[0008] In a possible implementation manner, the clamping member includes an upper clamping plate and a lower clamping plate; a groove is arranged on one side of the upper clamping plate close to the fixed carbon fiber plate, and the groove is arranged at one end of the upper clamping plate far from the tensioning anchor; a protrusion matching the fixed carbon fiber plate is arranged on one side of the lower clamping plate close to the fixed carbon fiber plate, and the protrusion is arranged at one end of the upper clamping plate far from the tensioning anchor; the upper clamping plate is buckled on the upper side of the lower clamping plate to form a wedge-shaped structure with a larger tail than the head; a clamping gap is formed between the upper clamping plate and the lower clamping plate, and the carbon fiber plate is clamped in the clamping gap.

[0009] In a possible implementation manner, a moving groove with a right-side opening is penetrated in the tensioning anchor, and sliding grooves are respectively arranged along the length direction on the inner side of the moving groove; the sliding grooves penetrate through the tensioning anchor; the moving block is slidably connected in the sliding grooves through guide sliders arranged on its front and rear sides; a through groove is arranged at the bottom on the left side of the moving groove, and the carbon fiber plate passes through the through groove and is connected to the moving block.

[0010] In a possible implementation manner, the pushing assembly includes a bottom plate, a lead screw, a nut and a top plate. The bottom plate is connected to the top of the tensioning anchor close to the fixed anchor, and the top plate is connected to the top of the moving block; the number of the lead screws is two, and they are respectively threadedly connected to the front and rear sides of the bottom plate, and one end of each lead screw abuts against the left end face of the top plate; the nut is threadedly connected to the middle of the lead screw and abuts against the end face of the bottom plate.

[0011] In a possible implementation manner, a plurality of anchoring bolts are symmetrically arranged on the fixed anchor and the tensioning anchor respectively, and the plurality of anchoring bolts are equidistantly distributed.

[0012] One or more technical solutions provided by this application have at least the following technical effects:

[0013] 1. In the present utility model, wedge-shaped clamping members are provided in both the fixed anchor and the moving block of the tensioning anchor. Through the cooperation relationship with the first jack and the second jack, during the tensioning process, the carbon fiber board clamped between the clamping members can be firmly clamped by the tensile force, and there will be no sliding or falling off of the carbon fiber board, which can effectively ensure the tensioning effect and play a good reinforcement role.

[0014] 2. In the present utility model, the moving block can slide in and out of the tensioning anchor, and thus the disassembly and assembly of the moving block can be easily realized. At the same time, the clamping member is also inserted into the first jack and the second jack, and it can also be easily pulled out, so that the entire anchoring device can be disassembled and assembled very quickly and conveniently, which can greatly improve the anchoring efficiency.

[0015] 3. In the present utility model, the wedge-shaped clamping member can not only increase the clamping force but also effectively prevent itself from sliding. At the same time, the upper clamping plate is buckled on the lower clamping plate, and by using the cooperation relationship between the groove and the protrusion, it can further ensure the prevention of sliding or falling off of the carbon fiber board clamped between the two, improving its stability and tensioning ability. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is the top view of a prestressed carbon fiber board anchoring device provided by an embodiment of the present application;

[0018] Figure 2 It is the cross-sectional view at A-A provided by an embodiment of the present application;

[0019] Figure 3 It is the partial enlarged view at B provided by an embodiment of the present application;

[0020] Figure 4 It is the front view of a prestressed carbon fiber board anchoring device provided by an embodiment of the present application;

[0021] Figure 5 It is the left view of the tensioning anchor provided by an embodiment of the present application;

[0022] Figure 6 It is the right view of the tensioning anchor provided by an embodiment of the present application;

[0023] Figure 7Schematic structural diagram of the clamping member provided by the embodiment of the present application.

[0024] Icon: 1 - Fixed anchor; 11 - First jack; 2 - Tensioning anchor; 21 - Moving groove; 22 - Sliding groove; 23 - Through groove; 3 - Carbon fiber board; 4 - Clamping member; 41 - Upper clamping plate; 42 - Lower clamping plate; 5 - Moving block; 51 - Second jack; 52 - Guide slider; 6 - Pushing assembly; 61 - Bottom plate; 62 - Lead screw; 63 - Nut; 64 - Top plate; 7 - Anchoring bolt. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0027] The embodiment of the present utility model provides a prestressed carbon fiber board anchoring device, as Figures 1-7 shown, including a fixed anchor 1 and a tensioning anchor 2 provided at both ends of the carbon fiber board 3 for fixing the carbon fiber board 3, characterized in that: a moving block 5 is slidably connected in the tensioning anchor 2; clamping members 4 for clamping the end portions of the carbon fiber board 3 are respectively embedded in the moving block 5 and the fixed anchor 1; a pushing assembly 6 for tensioning treatment is provided between the moving block 5 and the tensioning anchor 2.

[0028] In the embodiment of the present application, as Figures 1-7As shown, a first jack 11 is penetrated through the fixed anchor 1, and the cross-sectional dimension of the first jack 11 gradually decreases in the direction close to the tensioning anchor 2; a second jack 51 is penetrated through the moving block 5, and the cross-sectional dimension of the second jack 51 gradually decreases in the direction close to the fixed anchor 1; the clamping members 4 are all arranged in the first jack 11 and the second jack 51.

[0029] Exemplarily, the inner openings of the first jack 11 and the second jack 51 are small, and the outer openings are large, which can well limit the clamping members 4 and assist the clamping members 4 to have a better clamping effect on the carbon fiber plate 3.

[0030] In the embodiment of the present application, as Figures 1-7 shown, the clamping member 4 includes an upper clamping plate 41 and a lower clamping plate 42; a groove is provided on the side of the upper clamping plate 41 close to the fixed carbon fiber plate 3, and the groove is arranged at one end of the upper clamping plate 41 away from the tensioning anchor 2; a protrusion matching the fixed carbon fiber plate 3 is provided on the side of the lower clamping plate 42 close to the fixed carbon fiber plate 3, and the protrusion is arranged at one end of the upper clamping plate 41 away from the tensioning anchor 2; the upper clamping plate 41 is buckled on the upper side of the lower clamping plate 42 to form a wedge-shaped structure with a larger tail than the head; a clamping gap is formed between the upper clamping plate 41 and the lower clamping plate 42, and the carbon fiber plate 3 is clamped in the clamping gap.

[0031] Exemplarily, the clamping member 4 is composed of an upper clamping plate 41 and a lower clamping plate 42 to form a wedge-shaped structure with a gap in the middle. The carbon fiber plate 3 can be stably clamped inside through this gap, and the further stable effect on the carbon fiber plate 3 can be achieved during the tensioning process through the cooperation relationship between the grooves and protrusions at the tails of the two, avoiding it from slipping out or falling off.

[0032] In the embodiment of the present application, as Figures 1-7 shown, a moving groove 21 with a right-side opening is penetrated through the tensioning anchor 2, and sliding grooves 22 are respectively opened along the length direction on the inner side of the moving groove 21; the sliding grooves 22 penetrate through the tensioning anchor 2; the moving block 5 is slidably connected in the sliding grooves 22 through guide sliders 52 provided on its front and rear sides; a through groove 23 is provided at the left bottom of the moving groove 21, and the carbon fiber plate 3 passes through the through groove 23 and is connected to the moving block 5.

[0033] Exemplarily, the moving groove 21 is sufficient to provide enough space for the movement of the moving block 5, and the sliding grooves 22 play a guiding role, enabling the moving block 5 to move along a certain track, so that the tensioning process can proceed smoothly.

[0034] In the embodiment of the present application, as Figures 1-7As shown in the figure, the pushing component 6 includes a bottom plate 61, a lead screw 62, a nut, and a top plate 64. The bottom plate 61 is connected to the top of the tensioning anchor 2 on the side close to the fixed anchor 1, and the top plate 64 is connected to the top of the moving block 5. There are two lead screws 62, which are respectively threadedly connected to the front and rear sides of the bottom plate 61. One end of the lead screw 62 abuts against the left end face of the top plate 64. The nut 63 is threadedly connected to the middle of the lead screw 62 and abuts against the end face of the bottom plate 61.

[0035] Exemplarily, during the tensioning process, a jack can be placed on the bottom plate 61, and the head of the jack is aligned with the top plate 64. The jack is used to push the moving block 5 along the sliding groove 22 towards the opening of the moving groove 21, and the nut 63 is turned so that the end of the lead screw 62 always abuts against the left end face of the top plate 64, thereby realizing the tensioning work of the carbon fiber plate 3.

[0036] In the embodiment of the present application, as Figures 1-7 shown, the fixed anchor 1 and the tensioning anchor 2 are respectively symmetrically provided with a plurality of anchor bolts 7, and the plurality of anchor bolts 7 are equally spaced.

[0037] As an optimized technical solution of the present utility model, the anchor bolts 7 can position and install the fixed anchor 1 and the tensioning anchor 2 to facilitate the subsequent tensioning process.

[0038] The embodiment of the present utility model provides a prestressed carbon fiber plate anchoring device, and its operation steps are as follows:

[0039] During the actual anchoring process, first, both ends of the carbon fiber plate 3 are respectively passed through the first jack hole 11 and the second jack hole 51, and then the clamping member 4 is clamped at the end of the carbon fiber plate 3 with the small head facing inwards and the large head facing outwards. After the clamping is completed, the clamping member 4 clamping the carbon fiber plate 3 can be inserted into the first jack hole 11 and the second jack hole 51 from the outer sides of the fixed anchor 1 and the moving block 5 in the direction of the small head facing inwards and the large head facing outwards, and the fixed anchor 1 and the moving block 5 are pulled to both sides so that the clamping member 4 is in a clamped state.

[0040] Then, the guide sliders 52 on both sides of the moving block 5 are slid into the moving groove 21 along the sliding groove 22, and the right end of the lead screw 62 is abutted against the left end face of the top plate 64. Thus, the fixed anchor 1 and the tensioning anchor 2 can be fixed on both sides of the structure where the concrete needs to be strengthened through the anchor bolts 7, and the positioning and installation work of the fixed anchor 1 and the tensioning anchor 2 is completed.

[0041] Finally, the jack can be placed on the right end face of the bottom plate 61. By operating the jack, its head is made to abut against the left end face of the top plate 64. Then, the moving block 5 can be pushed to move rightward along the sliding groove 22 through the top plate 64 for tensioning treatment. At the same time, the nut 63 is screwed to make the right ends of the two lead screws 62 always abut against the left end face of the top plate 64, playing a role of supporting and fixing from both sides of the moving block 5 to prevent deviation and ensure the tensioning effect.

[0042] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A prestressed carbon fiber plate anchoring device, characterized in that, It includes a fixing anchor (1) and a tensioning anchor (2) arranged at both ends of a carbon fiber plate (3) for fixing the carbon fiber plate (3), and is characterized in that: a moving block (5) is slidably connected in the tensioning anchor (2); Clamping members (4) for clamping the ends of the carbon fiber plate (3) are respectively embedded in the moving block (5) and the fixing anchor (1); A pushing assembly (6) for tensioning treatment is arranged between the moving block (5) and the tensioning anchor (2).

2. The prestressed carbon fiber sheet anchoring device according to claim 1, characterized in that, A first jack (11) is penetratingly opened in the fixing anchor (1), and the cross-sectional dimension of the first jack (11) gradually decreases in the direction close to the tensioning anchor (2); A second jack (51) is penetratingly provided in the moving block (5), and the cross-sectional dimension of the second jack (51) gradually decreases in the direction close to the fixing anchor (1); The clamping members (4) are all arranged in the first jack (11) and the second jack (51).

3. The prestressed carbon fiber sheet anchoring device according to claim 2, characterized in that, The clamping member (4) includes an upper clamping plate (41) and a lower clamping plate (42); A groove is provided on one side of the upper clamping plate (41) close to the fixed carbon fiber plate (3), and the groove is arranged at one end of the upper clamping plate (41) far from the tensioning anchor (2); A protrusion matching the fixed carbon fiber plate (3) is provided on one side of the lower clamping plate (42) close to the fixed carbon fiber plate (3), and the protrusion is arranged at one end of the upper clamping plate (41) far from the tensioning anchor (2); The upper clamping plate (41) is buckled on the upper side of the lower clamping plate (42) to form a wedge-shaped structure with a larger tail than the head; A clamping gap is formed between the upper clamping plate (41) and the lower clamping plate (42), and the carbon fiber plate (3) is clamped in the clamping gap.

4. A prestressed carbon fiber plate anchoring device according to claim 1, characterized in that, A moving groove (21) with a right-side opening is penetratingly provided on the tensioning anchor (2), and sliding grooves (22) are respectively opened along the length direction on the inner side of the moving groove (21); the sliding grooves (22) penetrate through the tensioning anchor (2); The moving block (5) is slidably connected in the sliding groove (22) through guide sliders (52) provided on its front and rear sides; A through groove (23) is provided at the bottom on the left side of the moving groove (21), and the carbon fiber plate (3) passes through the through groove (23) and is connected to the moving block (5).

5. The prestressed carbon fiber sheet anchoring device according to claim 1, wherein The pushing assembly (6) includes a bottom plate (61), a lead screw (62), a nut (63) and a top plate (64). The bottom plate (61) is connected to the top of the tensioning anchor (2) on the side close to the fixing anchor (1), and the top plate (64) is connected to the top of the moving block (5); The number of the lead screws (62) is two, and they are respectively threadedly connected to the front and rear sides of the bottom plate (61), and one end of each lead screw (62) abuts against the left end face of the top plate (64); The nut (63) is threadedly connected to the middle of the lead screw (62) and abuts against the end face of the bottom plate (61).

6. The prestressed carbon fiber sheet anchoring device according to claim 1, characterized in that, A plurality of anchoring bolts (7) are symmetrically arranged on the fixing anchor (1) and the tensioning anchor (2) respectively, and the plurality of anchoring bolts (7) are equidistantly distributed.

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