A self-locking prestressed carbon fiber cloth anchor

Abstract

The present invention relates to the technical field of building material reinforcement. Specifically, it relates to a self-locking prestressed carbon fiber cloth anchor, which includes an anchoring unit and a locking unit. The anchoring unit includes a fixed end plate and a tension end plate. A fixed anchor is slidably connected inside the fixed end plate, and a tension anchor is slidably connected inside the tension end plate. The locking unit includes a semi-circular rod, a nut, and a rubber plate. The nut is threadedly connected to the end of the semi-circular rod, and a rubber plate is arranged in the middle of the semi-circular rod. By setting the locking unit and the self-locking component to cooperate, the present invention uses two semi-circular rods to clamp the strip-shaped carbon fiber cloth, preserving the integrity of the strip-shaped carbon fiber cloth. At the same time, when the carbon fiber cloth is stretched, it moves in the reverse direction with the teeth, so that the teeth clamp the strip-shaped carbon fiber cloth. The use of the idler wheel linkage ensures that the two sets of calipers have the same clamping effect, achieving the effect of automatically locking when pulling the strip-shaped carbon fiber cloth.

Description

Technical Field

[0001] The present invention relates to the technical field of building material reinforcement, and specifically, to a self-locking prestressed carbon fiber cloth anchor Background Art

[0002] With the rapid development of the construction industry, the demand for reinforcement and renovation of existing building structures is increasing day by day. Due to its excellent properties such as high strength, light weight, corrosion resistance, and fatigue resistance, carbon fiber cloth has been widely used in the field of building structure reinforcement. Carbon fiber cloth anchors emerged during the continuous development and improvement of carbon fiber cloth reinforcement technology. Its purpose is to provide reliable anchoring to ensure that the carbon fiber cloth can fully exert its performance in structural reinforcement, improving the safety and durability of the reinforced structure

[0003] After retrieval, the carbon fiber cloth anchor mentioned in the pin carbon fiber cloth anchor with the publication number of CN104358358A includes a pin plate, pins, bolts, and a groove bottom plate. Among them, both the pin plate and the groove bottom plate are provided with screw holes, and the bolts are respectively inserted into the screw holes of the pin plate and the groove bottom plate to press the pin plate and the groove bottom plate. The pins are arranged on the lower side of the pin plate, and the tips of the pins correspond to the groove bottom plate. The carbon fiber cloth can be anchored by piercing the carbon fiber cloth with the pins to make the upper and lower splints fit. The anchor is firm and reliable, well preventing the peeling damage of the carbon fiber cloth, improving its strength utilization rate, and thus achieving a significant reinforcement effect. It can give full play to the strength of the carbon fiber cloth, and the pins prevent the carbon fiber cloth from slipping, with reliable anchoring and convenient construction. However, when this scheme is actually used, there are still the following deficiencies

[0004] In the current carbon fiber cloth reinforcement project, it is necessary to pre-coat the surface of the carbon fiber cloth with a primer, and then lay it in the groove bottom plate. The mechanical anchoring is realized by the pins passing through the bottom plate and the carbon fiber cloth. The process of the pins passing through will cause local extrusion and shear effects on the carbon fiber cloth, damaging the continuity and integrity of the fiber bundle, resulting in damage in the stress-weak area of the carbon fiber cloth in the bottom plate groove, and then forming a stress concentration phenomenon. Since the carbon fiber cloth is a typical anisotropic material, its tensile strength mainly depends on the axial load-bearing of the fibers. The local structural damage will seriously weaken the overall mechanical properties of the material. With the increase of service time and the repeated action of loads, cracks are likely to expand at the damaged parts of the carbon fiber cloth, eventually leading to tearing damage, resulting in the carbon fiber cloth being unable to effectively transfer stress, significantly reducing the reinforcement effect and durability of the building structure, and it is difficult to meet the safety requirements for long-term use. Based on this, the present invention discloses a self-locking prestressed carbon fiber cloth anchor Summary of the Invention

[0005] To solve the problems in the background art, the present invention provides a self-locking prestressed carbon fiber cloth anchor, which includes an anchoring unit and a locking unit

[0006] Among them, the anchoring unit includes a fixed end plate and a tensioning end plate. A fixed anchor is slidably connected inside the fixed end plate, and a tensioning anchor is slidably connected inside the tensioning end plate. Strip-shaped carbon fiber cloths are arranged inside both the fixed anchor and the tensioning anchor. A tensioning screw is fixedly connected to the tail of the tensioning anchor, and a locking nut is threadedly sleeved on the outer surface of the tensioning screw.

[0007] Among them, the locking unit includes a semi-circular rod, a nut, and a rubber plate. There are two semi-circular rods which are butted and pressed on the outer surface of the strip-shaped carbon fiber cloth. The nut is threadedly connected to the end of the semi-circular rod. A strip-shaped hole is penetrated through the outer surface of the semi-circular rod, and the strip-shaped carbon fiber cloth penetrates through the strip-shaped hole. A rubber plate is arranged in the middle of the semi-circular rod.

[0008] Among them, a self-locking component is arranged inside the semi-circular rod, and a pressing component is arranged inside the fixed anchor.

[0009] Among them, an adjusting unit is arranged on the outer surface of the tensioning end plate.

[0010] The pressing component includes a cavity opened inside the fixed anchor. A pressing plate is slidably connected inside the cavity. Trapezoidal pressing teeth are evenly distributed on one side of the pressing plate away from the cavity. There are two pressing plates which are respectively arranged in the upper and lower parts of the fixed anchor. The trapezoidal pressing teeth of the upper and lower pressing plates are staggered. An extension plate is arranged on the outer surface of the semi-circular rod. The extension plate penetrates inside the cavity. A limiting plate is fixedly connected to the lower surface of the extension plate. The limiting plate is pressed on the outer surface of the pressing plate. Elastic bands are fixedly connected to the opposite ends of the extension plate.

[0011] As a further improvement of this technical solution, the self-locking component includes a shaft rod rotatably connected to the inner wall of the semi-circular rod. An inclined rod is fixedly connected to the middle of the outer surface of the shaft rod. Teeth are evenly distributed on one side of the inclined rod away from the shaft rod. A torsion spring is sleeved on the outer surface of the shaft rod. One end of the torsion spring is fixedly connected to the outer surface of the shaft rod, and the other end is fixedly connected to the inner wall of the semi-circular rod.

[0012] As a further improvement of this technical solution, a gear is fixedly sleeved on the outer surface of the shaft rod. An idle gear is rotatably connected to the inner wall of the semi-circular rod. There are two shaft rods which are symmetrically arranged with the axis of the idle gear as the axis of symmetry. The gear is meshed with the idle gear.

[0013] As a further improvement of this technical solution, a positioning block is fixedly connected to the outer surface of the extension plate. A positioning groove is opened on the outer surface of the semi-circular rod. The positioning block is clamped inside the positioning groove.

[0014] As a further improvement of this technical solution, the adjusting unit includes a limiting component arranged on the outer surface of the tensioning end plate and a rolling component arranged based on the limiting component.

[0015] As a further improvement of the technical solution, the limiting component includes a base clamped to the lower surface of the tension end plate. A clamping rod is fixedly connected to the side of the base. A cross rod is fixedly connected to the lower surface of the tension end plate. The clamping rod is attached to the side of the cross rod. A threaded rod is inserted through the connection between the base and the tension end plate. A support plate is movably sleeved on the outer surface of the threaded rod. A positioning nut is threadedly connected to the connection between the support plate and the threaded rod.

[0016] As a further improvement of the technical solution, the rolling component includes two folded clamping plates arranged at the lower part of the fixed end plate. A sliding cylinder is rotatably connected to the lower surface of one of the folded clamping plates. A plug is rotatably connected to the lower surface of the other folded clamping plate. The plug is inserted into the inside of the sliding cylinder. A clamping groove is formed on the side of the fixed end plate. The folded clamping plate is clamped inside the clamping groove.

[0017] As a further improvement of the technical solution, a rope is movably inserted through the middle of the folded clamping plate. One end of the rope away from the folded clamping plate is fixedly connected to a docking rod. The docking rod is threadedly connected to the inside of the threaded rod. A lock is arranged on the outer surface of the end of the rope passing through the folded clamping plate. A T-shaped rod is clamped in the middle of the support plate. A wire rope is fixedly connected to the end of the T-shaped rod passing through the support plate. The wire rope passes through the upper surface of the sliding cylinder. A rolling wheel is rotatably arranged on the upper surface of the support plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this self-locking prestressed carbon fiber cloth anchor, by setting the locking unit and the self-locking component in cooperation, the strip carbon fiber cloth is clamped by two semi-circular rods, preserving the integrity of the strip carbon fiber cloth. At the same time, when the carbon fiber cloth is stretched, it moves in the opposite direction to the teeth, so that the teeth clamp the strip carbon fiber cloth. The idler wheel linkage ensures that the two groups of calipers have the same clamping effect, achieving the effect of automatically locking when pulling the strip carbon fiber cloth.

[0020] 2. In this self-locking prestressed carbon fiber cloth anchor, by setting the pressing component, when pulling the strip carbon fiber cloth, the extension plate gradually snaps into the cavity, which will drive the limiting plate to squeeze the pressing plate, so that the trapezoidal pressing teeth on the other side of the pressing plate are pressed against the outer surface of the carbon fiber plate, with a stronger pressing effect and greater friction on the carbon fiber plate, further improving the locking effect.

[0021] 3. In this self-locking prestressed carbon fiber cloth anchor, the limit component and the rolling component are realized. After the limit component is installed, the hydraulic cylinder can be used to push the tensioning anchor to realize the prestress setting and adjustment. The tensioning screw is locked by the lock nut. Then the rolling component is installed. The sliding cylinder is used as a fixed pulley, and pulling the wire rope can drive the support plate to move along the rope, and then drive the rolling wheel to roll the strip-shaped carbon fiber cloth, which is more convenient and labor-saving than manually rolling bit by bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the fixed end plate of the present invention;

[0024] Figure 3 is a schematic diagram of the structure of the fixed anchor of the present invention;

[0025] Figure 4 is a schematic diagram of the structure of the cooperation between the semi-circular rod and the extension plate of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of the locking unit of the present invention;

[0027] Figure 6 is a schematic diagram of the internal structure of the semi-circular rod of the present invention;

[0028] Figure 7 is a schematic diagram of the structure of the tensioning end plate of the present invention;

[0029] Figure 8 is a schematic diagram of the structure of the limit component of the present invention;

[0030] Figure 9 is a schematic diagram of the structure of the rolling component of the present invention;

[0031] Figure 10 is a schematic diagram of the structure of the cooperation between the rolling component and the fixed end plate of the present invention.

[0032] The meanings of the various reference numerals in the figure are as follows:

[0033] 11. Fixed end plate; 12. Tension end plate; 13. Fixed anchor; 14. Tension anchor; 15. Tension screw; 16. Locking nut; 17. Strip-shaped carbon fiber cloth; 21. Semi-circular rod; 22. Strip-shaped hole; 23. Nut; 24. Rubber plate; 31. Shaft rod; 32. Inclined rod; 33. Card teeth; 34. Torsion spring; 35. Gear; 36. Idler gear; 41. Cavity; 42. Pressure plate; 43. Trapezoidal pressure teeth; 44. Extension plate; 45. Limit plate; 46. Elastic band; 47. Positioning block; 48. Positioning groove; 51. Base; 52. Cross bar; 53. Clamping rod; 54. Threaded rod; 55. Support plate; 56. Positioning nut; 61. Folded card plate; 62. Sliding cylinder; 63. Plug-in; 64. Card slot; 65. Docking rod; 66. Rope; 67. Lock; 68. T-shaped rod; 69. String; 610. Rolling wheel. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] For this reason, the present invention provides a self-locking prestressed carbon fiber cloth anchor, see Figures 1 to 10 as shown, which includes an anchoring unit and a locking unit;

[0036] Among them, the anchoring unit includes a fixed end plate 11 and a tension end plate 12. A fixed anchor 13 is slidably connected inside the fixed end plate 11, and a tension anchor 14 is slidably connected inside the tension end plate 12. Strip-shaped carbon fiber cloths 17 are arranged inside both the fixed anchor 13 and the tension anchor 14. The tail of the tension anchor 14 is fixedly connected to a tension screw 15, and a locking nut 16 is threadedly sleeved on the outer surface of the tension screw 15;

[0037] Among them, the locking unit includes a semi-circular rod 21, a nut 23 and a rubber plate 24. Two semi-circular rods 21 are provided and are butt-jointed and pressed on the outer surface of the strip-shaped carbon fiber cloth 17. The nut 23 is threadedly connected to the end of the semi-circular rod 21. A strip-shaped hole 22 is penetrated through the outer surface of the semi-circular rod 21, and the strip-shaped carbon fiber cloth 17 penetrates through the strip-shaped hole 22. A rubber plate 24 is arranged in the middle of the semi-circular rod 21.

[0038] Cut the strip-shaped carbon fiber cloth 17 to a specified length. Pass one end of it through the fixed anchor 13, and apply an adhesive on the outer surface of the strip-shaped carbon fiber cloth 17. Then cover the upper and lower halves of the fixed anchor 13 and press the strip-shaped carbon fiber cloth 17. Pass the end of the strip-shaped carbon fiber cloth 17 extending out of the fixed anchor 13 through the strip-shaped hole 22 in the middle of the lower semi-circular rod 21, and after passing through, pass it through the strip-shaped hole 22 in the middle of the upper semi-circular rod 21. Then combine the two semi-circular rods 21 to form a complete circular rod. The rubber plate 24 will also squeeze the strip-shaped carbon fiber cloth 17 when it is squeezed, increasing the friction force to prevent the carbon fiber plate from sliding. Screw the nuts 23 onto both ends of the circular rod to lock the two semi-circular rods 21, avoiding local structural damage caused by the method of fixing through the strip-shaped carbon fiber cloth 17, preserving the integrity of the strip-shaped carbon fiber cloth 17, ensuring that the strip-shaped carbon fiber cloth 17 cannot effectively transfer stress, and significantly reducing the reinforcement effect and durability of the building structure.

[0039] As Figure 2 , Figure 5 and Figure 6 shown, the self-locking assembly includes a shaft rod 31 rotatably connected to the inner wall of the semi-circular rod 21. A diagonal rod 32 is fixedly connected to the middle of the outer surface of the shaft rod 31. Teeth 33 are evenly distributed on the side of the diagonal rod 32 away from the shaft rod 31. A torsion spring 34 is sleeved on the outer surface of the shaft rod 31. One end of the torsion spring 34 is fixedly connected to the outer surface of the shaft rod 31, and the other end is fixedly connected to the inner wall of the semi-circular rod 21. A gear 35 is fixedly sleeved on the outer surface of the shaft rod 31. An idler gear 36 is rotatably connected to the inner wall of the semi-circular rod 21. There are two shaft rods 31 symmetrically arranged with the axis of the idler gear 36 as the axis of symmetry. The gear 35 is meshed with the idler gear 36;

[0040] When pulling the strip-shaped carbon fiber cloth 17, the strip-shaped carbon fiber cloth 17 and the teeth 33 move in the reverse direction. Under the action of the torsion spring 34, the teeth 33 will clamp the strip-shaped carbon fiber cloth 17. At the same time, both shaft rods 31 are provided with gears 35, and through the linkage of the idler gear 36, the two gears 35 always rotate in the same direction, ensuring that the two groups of calipers have the same clamping effect, achieving the effect of automatically locking when pulling the strip-shaped carbon fiber cloth 17.

[0041] As Figure 2 , Figure 3 and Figure 4As shown in the figure, the pressing component includes a cavity 41 opened inside the fixed anchor 13. A pressing plate 42 is slidably connected inside the cavity 41. Trapezoidal pressing teeth 43 are evenly distributed on the side of the pressing plate 42 away from the cavity 41. Two pressing plates 42 are arranged in the upper and lower parts of the fixed anchor 13 respectively, and the trapezoidal pressing teeth 43 of the upper and lower pressing plates 42 are staggered. An extension plate 44 is arranged on the outer surface of the semi-circular rod 21. The extension plate 44 is inserted into the cavity 41. A limiting plate 45 is fixedly connected to the lower surface of the extension plate 44. The limiting plate 45 presses on the outer surface of the pressing plate 42. Elastic bands 46 are fixedly connected to the opposite ends of the extension plate 44. A positioning block 47 is fixedly connected to the outer surface of the extension plate 44. A positioning groove 48 is opened on the outer surface of the semi-circular rod 21. The positioning block 47 is clamped inside the positioning groove 48;

[0042] Align the positioning block 47 on the surface of the extension plate 44 and insert it into the positioning groove 48 on the outer surface of the semi-circular rod 21. The elastic bands 46 at the ends of the two extension plates 44 are in a taut state under tension, which will bind the strip-shaped carbon fiber cloth 17. Align the extension plate 44 with the side of the cavity 41. When pulling the strip-shaped carbon fiber cloth 17, the movement of the semi-circular rod 21 towards the fixed anchor 13 will push the extension plate 44 to gradually snap into the cavity 41, and then drive the limiting plate 45 to squeeze the pressing plate 42, so that the trapezoidal pressing teeth 43 on the other side of the pressing plate 42 press on the outer surface of the carbon fiber plate. And the upper and lower groups of trapezoidal pressing teeth 43 are staggered, making the pressing effect on the carbon fiber plate stronger and the friction greater, further improving the locking effect.

[0043] As Figures 7 to 9 shown in the figure, the adjusting unit includes a limiting component arranged on the outer surface of the tension end plate 12 and a rolling component arranged based on the limiting component. The limiting component includes a base 51 clamped on the lower surface of the tension end plate 12. A clamping rod 53 is fixedly connected to the side of the base 51. A cross bar 52 is fixedly connected to the lower surface of the tension end plate 12. The clamping rod 53 is attached to the side of the cross bar 52. A threaded rod 54 is inserted through the connection between the base 51 and the tension end plate 12 in a threaded manner. A support plate 55 is movably sleeved on the outer surface of the threaded rod 54. A positioning nut 56 is threadedly connected to the connection between the support plate 55 and the threaded rod 54;

[0044] Install two base plates 51 on both sides of the tension end plate 12, so that two clamping rods 53 clamp the cross bar 52, and use a pin rod to penetrate and lock. Then use four threaded rods 54 to lock the base plate 51. After passing the support plate 55 through the outer surface of the four threaded rods 54, use a positioning nut 56 to lock and limit. Then use a hydraulic cylinder to hydraulically push the tensioning anchor 14, so that the tensioning anchor 14 slides within the tension end plate 12. The tensioning screw rod 15 at the tail of the tensioning anchor 14 will penetrate the tension end plate 12. After adjusting to the designed prestress, release the hydraulic cylinder. Apply an adhesive on the upper surface of the strip-shaped carbon fiber cloth 17. Then stretch hydraulically again to the specified prestress, and use a locking nut 16 to lock the tensioning screw rod 15.

[0045] As Figures 8 to 10 shown, the rolling component includes two folded clamping plates 61 arranged at the lower part of the fixed end plate 11. A sliding cylinder 62 is rotatably connected to the lower surface of one of the folded clamping plates 61, and a plug-in part 63 is rotatably connected to the lower surface of the other folded clamping plate 61. The plug-in part 63 is inserted into the inside of the sliding cylinder 62. A clamping groove 64 is formed on the side of the fixed end plate 11, and the folded clamping plate 61 is clamped inside the clamping groove 64. A rope 66 is movably inserted through the middle of the folded clamping plate 61. One end of the rope 66 away from the folded clamping plate 61 is fixedly connected to a docking rod 65. The docking rod 65 is threadedly connected to the inside of the threaded rod 54. A lock catch 67 is arranged on the outer surface of the end of the rope 66 passing through the folded clamping plate 61. A T-shaped rod 68 is clamped in the middle of the support plate 55. One end of the T-shaped rod 68 passing through the support plate 55 is fixedly connected to a cord 69. The cord 69 passes through the upper surface of the sliding cylinder 62. A rolling wheel 610 is rotatably arranged on the upper surface of the support plate 55;

[0046] After butting the two folded clamping plates 61 and inserting them into the clamping groove 64, install the docking rod 65 at the end of the rope 66 on the end of the threaded rod 54. Using the sliding cylinder 62 as a fixed pulley, pulling the cord 69 can drive the support plate 55 to move along the rope 66, and thus can drive the rolling wheel 610 to roll the strip-shaped carbon fiber cloth 17, which is more convenient and labor-saving than manually rolling bit by bit.

[0047] In the process of laying and installing the strip carbon fiber cloth 17, after planning the size and position, the fixed end plate 11 is locked and installed on the lower surface of the building material. The strip carbon fiber cloth 17 is cut to a specified length. One end of it is inserted through the fixed anchor 13, and an adhesive is applied to the outer surface of the strip carbon fiber cloth 17. Then, the upper and lower halves of the fixed anchor 13 are covered, and the strip carbon fiber cloth 17 is pressed. The end of the strip carbon fiber cloth 17 extending out of the fixed anchor 13 is inserted through the strip hole 22 in the middle of the lower semi-circular rod 21, and after passing through, it is inserted into the strip hole 22 in the middle of the upper semi-circular rod 21. Then, the two semi-circular rods 21 are combined to form a complete circular rod. The rubber plate 24 will also squeeze the strip carbon fiber cloth 17 when being squeezed, increasing the friction force to prevent the carbon fiber plate from sliding. Then, the nuts 23 are screwed onto both ends of the circular rod to lock the two semi-circular rods 21, avoiding local structural damage caused by the method of fixing by passing through the strip carbon fiber cloth 17, preserving the integrity of the strip carbon fiber cloth 17, ensuring that the strip carbon fiber cloth 17 cannot effectively transfer stress, significantly reducing the reinforcement effect and durability of the building structure. The end of the strip carbon fiber cloth 17 far from the fixed anchor 13 is installed in the tensioning anchor 14. Then, the tensioning anchor 14 is slid into the tensioning end plate 12. The two bases 51 are installed on both sides of the tensioning end plate 12, so that the two clamping rods 53 clamp the cross bar 52, and a pin rod is used for penetration and locking. Then, four threaded rods 54 are used to lock the bases 51. The support plate 55 is inserted through the outer surface of the four threaded rods 54 and then locked and limited by the positioning nut 56. Then, a hydraulic cylinder is used to hydraulically push the tensioning anchor 14, so that the tensioning anchor 14 slides in the tensioning end plate 12. The tensioning screw rod 15 at the tail of the tensioning anchor 14 will penetrate the tensioning end plate 12. After adjusting to the designed prestress, the hydraulic cylinder is released. An adhesive is applied to the upper surface of the strip carbon fiber cloth 17. Then, it is hydraulically stretched again to the specified prestress, and the tensioning screw rod 15 is locked by the locking nut 16;

[0048] Align the positioning block 47 on the surface of the extension plate 44 and insert it into the positioning groove 48 on the outer surface of the semi-circular rod 21. The elastic bands 46 at the ends of the two extension plates 44 are in a taut state under tension and will restrain the strip-shaped carbon fiber cloth 17. Align the extension plate 44 with the side of the cavity 41. When pulling the strip-shaped carbon fiber cloth 17, the strip-shaped carbon fiber cloth 17 and the cogs 33 move in opposite directions. Under the action of the torsion spring 34, the cogs 33 will clamp the strip-shaped carbon fiber cloth 17. At the same time, both of the shaft rods 31 are provided with gears 35, and are linked by an idler gear 36, so that the two gears 35 always rotate in the same direction, ensuring that the two groups of calipers have the same clamping effect. Even if one group of cogs 33 becomes loose, the other group can still achieve the locking purpose through the transmission of the idler gear 36, achieving the effect of automatic locking when pulling the strip-shaped carbon fiber cloth 17. At the same time, when the semi-circular rod 21 moves towards the fixed anchor 13, it will push the extension plate 44 to gradually snap into the cavity 41, and then drive the limiting plate 45 to squeeze the pressing plate 42, so that the trapezoidal pressing teeth 43 on the other side of the pressing plate 42 are pressed against the outer surface of the carbon fiber plate. And the upper and lower groups of trapezoidal pressing teeth 43 are staggered, making the pressing effect on the carbon fiber plate stronger and the friction greater, further improving the locking effect;

[0049] After completing the prestress tension of the strip-shaped carbon fiber cloth 17, use a clamping plate for locking. Then align the two folded clamping plates 61 so that the plug-in 63 is inserted into the sliding cylinder 62 to connect the two folded clamping plates 61. At the same time, the folded clamping plates 61 are both snapped into the card slots 64. Unscrew the positioning nut 56, install the docking rod 65 at the end of the rope 66 on the end of the threaded rod 54. The other end of the rope 66 is threaded through the middle of the folded clamping plate 61, and then use a buckle 67 for fixation. Then pass the string 69 through the support plate 55 so that the T-shaped rod 68 is clamped inside the support plate 55. The other end of the string 69 passes through the sliding cylinder 62. Pulling the string 69 can drive the support plate 55 to move along the rope 66, and then drive the rolling wheel 610 to roll the strip-shaped carbon fiber cloth 17, which is more convenient and labor-saving than manual rolling bit by bit. After rolling, disassemble the corresponding structures of the rolling assembly and the limiting assembly, and the structures of the rolling assembly and the limiting assembly can be recycled repeatedly to avoid unnecessary waste.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking prestressed carbon fiber cloth anchor, characterized in that Comprising: An anchoring unit and a locking unit; Wherein, the anchoring unit includes a fixed end plate (11) and a tension end plate (12). A fixed anchor (13) is slidably connected inside the fixed end plate (11), and a tension anchor (14) is slidably connected inside the tension end plate (12). Strip-shaped carbon fiber cloths (17) are arranged inside both the fixed anchor (13) and the tension anchor (14). A tension screw rod (15) is fixedly connected to the tail of the tension anchor (14), and a locking nut (16) is threadedly sleeved on the outer surface of the tension screw rod (15); Wherein, the locking unit includes semi-circular rods (21), nuts (23) and rubber plates (24). Two semi-circular rods (21) are provided and are butt-jointed and pressed on the outer surface of the strip-shaped carbon fiber cloth (17). The nut (23) is threadedly connected to the end of the semi-circular rod (21). A strip-shaped hole (22) is penetrated through the outer surface of the semi-circular rod (21), and the strip-shaped carbon fiber cloth (17) passes through the strip-shaped hole (22). A rubber plate (24) is arranged in the middle of the semi-circular rod (21); Wherein, a self-locking component is arranged inside the semi-circular rod (21), and a pressing component is arranged inside the fixed anchor (13); Wherein, an adjusting unit is arranged on the outer surface of the tension end plate (12); The pressing component includes a cavity (41) opened inside the fixed anchor (13). A pressing plate (42) is slidably connected inside the cavity (41). Trapezoidal pressing teeth (43) are evenly distributed on one side of the pressing plate (42) away from the cavity (41). Two pressing plates (42) are arranged and are respectively placed in the upper and lower parts of the fixed anchor (13). The trapezoidal pressing teeth (43) of the upper and lower pressing plates (42) are staggered. An extension plate (44) is arranged on the outer surface of the semi-circular rod (21). The extension plate (44) is inserted into the cavity (41). A limiting plate (45) is fixedly connected to the lower surface of the extension plate (44). The limiting plate (45) is pressed on the outer surface of the pressing plate (42). Elastic bands (46) are fixedly connected to the opposite ends of the extension plate (44).

2. The self-locking type prestressed carbon fiber sheet anchor according to claim 1, wherein: The self-locking component includes a shaft rod (31) rotatably connected to the inner wall of the semi-circular rod (21). An inclined rod (32) is fixedly connected to the middle of the outer surface of the shaft rod (31). Teeth (33) are evenly distributed on one side of the inclined rod (32) away from the shaft rod (31). A torsion spring (34) is sleeved on the outer surface of the shaft rod (31). One end of the torsion spring (34) is fixedly connected to the outer surface of the shaft rod (31), and the other end is fixedly connected to the inner wall of the semi-circular rod (21).

3. The self-locking prestressed carbon fiber cloth anchor according to claim 2, characterized in that: A gear (35) is fixedly sleeved on the outer surface of the shaft rod (31). An idle gear (36) is rotatably connected to the inner wall of the semi-circular rod (21). Two shaft rods (31) are provided and are symmetrically arranged with the axis of the idle gear (36) as the axis of symmetry. The gear (35) is meshed and connected with the idle gear (36).

4. The self-locking prestressed carbon fiber sheet anchor according to claim 1, characterized in that: A positioning block (47) is fixedly connected to the outer surface of the extension plate (44). A positioning groove (48) is formed on the outer surface of the semi-circular rod (21), and the positioning block (47) is clamped inside the positioning groove (48).

5. The self-locking prestressed carbon fiber sheet anchor according to claim 1, wherein: The adjusting unit includes a limiting component arranged on the outer surface of the tension end plate (12) and a rolling component arranged based on the limiting component.

6. The self-locking prestressed carbon fiber sheet anchor according to claim 5, wherein: The limiting component includes a base (51) clamped to the lower surface of the tension end plate (12). A clamping rod (53) is fixedly connected to the side of the base (51). A cross bar (52) is fixedly connected to the lower surface of the tension end plate (12). A threaded rod (54) is inserted through the connection between the base (51) and the tension end plate (12). A support plate (55) is movably sleeved on the outer surface of the threaded rod (54). A positioning nut (56) is threadedly connected to the connection between the support plate (55) and the threaded rod (54).

7. The self-locking prestressed carbon fiber sheet anchor according to claim 6, wherein: The rolling component includes two folded clamping plates (61) arranged at the lower part of the fixed end plate (11). A sliding cylinder (62) is rotatably connected to the lower surface of one of the folded clamping plates (61). A plug-in part (63) is rotatably connected to the lower surface of the other folded clamping plate (61). The plug-in part (63) is inserted into the sliding cylinder (62). A clamping groove (64) is formed on the side of the fixed end plate (11), and the folded clamping plate (61) is clamped inside the clamping groove (64).

8. The self-locking prestressed carbon fiber cloth anchor according to claim 7, characterized in that: A rope (66) is movably inserted through the middle of the folded clamping plate (61). One end of the rope (66) far away from the folded clamping plate (61) is fixedly connected to a docking rod (65). The docking rod (65) is threadedly connected to the inside of the threaded rod (54). A locking buckle (67) is arranged on the outer surface of the end of the rope (66) passing through the folded clamping plate (61). A T-shaped rod (68) is clamped in the middle of the support plate (55). One end of the T-shaped rod (68) passing through the support plate (55) is fixedly connected to a wire rope (69). The wire rope (69) passes through the upper surface of the sliding cylinder (62). A rolling wheel (610) is rotatably arranged on the upper surface of the support plate (55).

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