Connecting and anchoring device and method for FRP material

Abstract

The invention belongs to the technical field of civil engineering, and discloses an FRP material connecting and anchoring device and method.The connecting and anchoring device comprises an anchor bearing plate, a corrugated pipe is arranged on one side of the bottom of the anchor bearing plate, a spiral rib is arranged on the outer side of one end of the corrugated pipe, and one end of the spiral rib is fixedly installed on one side of the anchor bearing plate; an anchorage device moving structure is arranged on the side, away from the corrugated pipe, of the anchor bearing plate. The anchorage device moving structure comprises a protective telescopic block, a working anchor plate, a clamping piece, a mounting hole and an adjusting structure, the protective telescopic block is arranged on one side of the anchor bearing plate, and the working anchor plate is arranged in the protective telescopic block. Through the action of the idler wheels and the limiting plates, when the working anchor plate and the steel strand are installed, the steel strand can be guided and limited, so that the steel strand is kept perpendicular, and the situation that the steel strand inclines, consequently, an anchorage device is not perpendicular to the steel strand, the steel strand is twisted and bent, and the follow-up anchoring effect is affected is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of civil engineering, and in particular relates to a connection and anchoring device and method for FRP materials. Background Art

[0002] High-performance fiber reinforced composites (FRP for short) are integral composite materials formed by impregnating high-performance continuous fibers such as carbon fiber and glass fiber into resin with good corrosion resistance. FRP includes FRP bars, FRP tubes, FRP meshes, FRP profiles, FRP cables, etc., which have the advantages of high strength, low specific gravity, corrosion resistance, and non-magneticity. When used with concrete to replace traditional steel bars, it can reduce the deadweight of the structure, improve the bearing capacity of the structure, and extend the life of the structure. Especially in harsh environments, the superiority of FRP concrete can be better exerted. In new structures and reinforcement and reconstruction projects such as bridges, highways, marine engineering, and docks, the connection and anchoring of FRP composite materials are important components and are also key technologies that restrict the application of FRP composite materials.

[0003] However, in the prior art, when installing the anchor device in concrete, the steel strand needs to be inserted into the corrugated tube of the anchor device according to the design requirements. When workers insert the steel strand into the anchor, it is easy for the steel strand to be skewed, which in turn causes the anchor and the steel strand to be not perpendicular, causing the steel strand to twist and bend, etc., affecting the subsequent anchoring effect. Summary of the invention

[0004] The present invention aims at the problems in the prior art and proposes the following technical solutions: a connection and anchoring device for FRP materials, comprising an anchor pad, a corrugated pipe is arranged on one side of the bottom of the anchor pad, a spiral rib is arranged on the outer side of one end of the corrugated pipe, one end of the spiral rib is fixedly installed on one side of the anchor pad, and an anchor moving structure is arranged on the side of the anchor pad away from the corrugated pipe;

[0005] The anchor moving structure includes a protective telescopic block, a working anchor plate, a clip, a mounting hole, and an adjustment structure. A protective telescopic block is arranged on one side of the anchor plate, a working anchor plate is arranged inside the protective telescopic block, mounting holes distributed in a circular array are opened on the top of the protective telescopic block and the working anchor plate, a clip is inserted in the mounting hole of the working anchor plate, an adjustment structure is arranged inside the working anchor plate, and the adjustment structure is distributed in a circular array with the center of the mounting hole.

[0006] Furthermore, the adjusting structure includes a moving ring, a moving rod, a first rack, a gear, a movable rod, a second rack, a connecting block, a baffle, a connecting rod, a moving block, a round convex, a movable block, a fixed rod and a roller. A moving rod is fixedly installed at the bottom of the moving ring, a first rack is fixedly installed at the bottom of the moving rod, a gear is meshed with one side of the first rack, a movable rod is fixedly installed in the middle of the gear, a connecting rod is fixedly installed on the other side of the first rack, a moving block is fixedly installed on one side of the connecting rod, a round convex is fixedly installed at the bottom of the moving block, a movable block is arranged at the bottom of the round convex, fixed rods are fixedly installed on both sides of the movable block, and rollers are rotatably connected to one ends of the fixed rods. A second rack is meshed with one side of the gear, a connecting block is fixedly installed on one side of the second rack, and a baffle is fixedly installed on one side of the connecting block.

[0007] Furthermore, an installation groove is formed in the middle of the working anchor plate, a movable opening is formed in the inner wall of the bottom end of the installation hole of the working anchor plate, the movable openings are distributed in a circular array centered on the installation hole, the baffle is located at the movable opening, one side of the baffle is slidably connected to the inner wall of the installation groove, one end of the moving rod passes through the top of the working anchor plate and extends into the protective telescopic block, the moving ring is located on the top of the clip, fixing plates are rotatably connected to both sides of the movable rod, the top of the fixing plates is fixedly installed with the inner wall of the top of the installation groove, a first spring is fixedly installed at the bottom of the first rack, and the bottom of the first spring is fixedly installed with the inner wall of the bottom of the installation groove.

[0008] Furthermore, the bottom of the movable block is slidably connected to the inner wall of the bottom of the installation groove. One side of the movable block close to the round convex is an inclined surface, the round convex is located at the top of the inclined surface, a second spring is fixedly installed at one side of the bottom end of the movable block, and a first fixing block is fixedly installed at one end of the second spring. The first fixing block is fixedly installed with the inner wall of the bottom of the installation groove.

[0009] Furthermore, the first rack, the gear, the movable rod, the fixing plate and the second rack are located on one side of the movable block, the roller is located behind the baffle, the connecting rod is in an L shape, a connecting plate is fixedly installed on the side of the second rack away from the movable block, and a limiting plate is fixedly installed on one side of the connecting plate.

[0010] Furthermore, the limiting plates are located between the baffles. The number of both the connecting plates and the limiting plates is two. The two connecting plates and the limiting plates are symmetrically arranged centered on the installation hole. A moving opening is formed in the bottom of the working anchor plate, the moving opening penetrates through the bottom of the protective telescopic block, and the moving opening is located at the bottom of the limiting plate.

[0011] Furthermore, limiting structures are symmetrically arranged between the working anchor plate and the protective telescopic block. The limiting structure includes a slider, a connecting spring, a limiting rod and a limiting block. Sliding grooves are formed on both sides of the working anchor plate, a slot is formed in the inner wall of one side of the sliding groove, a slider is slidably connected in the sliding groove, a connecting spring is fixedly installed at the bottom of the slider, the bottom of the connecting spring is fixedly installed with the inner wall of the bottom of the sliding groove, a limiting rod is arranged on one side of the slider, one end of the limiting rod passes through the slider and is inserted into the slot, and a limiting block is fixedly installed at the other end of the limiting rod.

[0012] Further, one end of the limiting rod penetrates through the protective telescopic block, the limiting block is located outside the protective telescopic block, two fixing grooves are formed on the outside of the protective telescopic block, a compression spring is fixedly installed on one side of the limiting block, both the two fixing grooves and the compression spring are located on both sides of the limiting rod, and one end of the compression spring is fixedly installed with the fixing groove.

[0013] Further, an elastic fixing ring is fixedly installed on the top of the working anchor plate, a second fixing block is fixedly installed on the outside of the elastic fixing ring, the bottom of the second fixing block is fixedly installed with the top of the working anchor plate, the second fixing blocks are distributed in a circular array with the center of the fixing ring, the moving ring is located outside the elastic fixing ring and the second fixing block, and the elastic fixing ring and the second fixing block are located outside the wedge-shaped clip.

[0014] The present invention also provides a method for using the connecting and anchoring device made of the above FRP material, including the following steps:

[0015] Step 1: Use a drill to drill a hole at a predetermined position, embed the corrugated pipe and the spiral rib in the hole, so that the anchor backing plate is located outside the hole, pass the steel strand through the anchor backing plate and the pre-embedded corrugated pipe, and then install the protective telescopic block and the working anchor plate at the end of the steel strand.

[0016] Step 2: During installation, align the steel strand with the installation holes on the protective telescopic block and the working anchor plate, so that the steel strand passes through the installation holes. First, move the limiting block away from the protective telescopic block to drive the compression spring to stretch, so that the limiting block drives the limiting rod away from the slot and moves to the middle of the slider, and then move downward to make the protective telescopic block contract. The protective telescopic block drives the limiting rod and the slider to move along the chute, so that the connecting spring is compressed. The protective telescopic block moves downward to push the moving ring inside it to drive the moving rod to move into the installation groove, so that the first rack also moves downward, drives the gear to drive the movable rod to rotate along the fixed plate, and further makes the second rack drive the connecting block and the baffle to move upward. When the first rack moves downward, the first spring is compressed and drives the circular convex to move downward through the connecting rod and the moving block, so that the circular convex moves downward along the inclined surface on one side of the movable block, extrudes the movable block, so that the second spring is stretched. The movable block drives the fixed rod and the roller to move along the inner wall of the bottom of the installation groove towards the movable port. When the baffle moves upward to expose the movable port, the roller moves from the movable port into the installation hole, so that the roller fits with the outside of the steel strand.

[0017] Step 3: When the first rack moves downward, it drives the connecting plate and the limiting plate to move simultaneously, so that the limiting plate moves to the bottom of the protective telescopic block through the moving port, and then pushes the protective telescopic block and the working anchor plate, so that the roller moves along the steel strand. The steel strand is limited by the limiting plate to prevent the steel strand from bending and deforming. When the protective telescopic block and the working anchor plate move to one side of the anchor plate gasket, move the protective telescopic block upward. The moving ring is no longer squeezed. Under the action of the first spring, the first rack and the moving rod are pushed upward, so that the moving ring moves to its original position, and the first rack drives the connecting rod, the moving block and the round convex to move upward, no longer squeezing the movable block. Under the action of the second spring, the movable block drives the roller into the installation groove, and the second rack drives the connecting block and the baffle to move downward to the movable port to block the movable port;

[0018] Step 4: When the protective telescopic block moves upward and no longer contracts, the protective telescopic block drives the limiting block, the limiting rod and the slider to move upward along the chute, so that the connecting spring is stretched to align the limiting rod with the slot, and then release the limiting block. Under the action of the compression spring, the limiting block drives the limiting rod to be inserted into the slot to limit the position of the protective telescopic block. Then the clip is inserted into the installation hole to limit the steel strand, and then the protective telescopic block and the anchor backing plate are installed. After the working anchor plate is installed on the anchor backing plate, it is completed.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) Through the action of the roller and the limiting plate, the present invention can guide and limit the steel strand when the working anchor plate and the steel strand are installed, so that the steel strand remains vertical, preventing the steel strand from being skewed, which may lead to non-perpendicularity between the anchor and the steel strand, and preventing the steel strand from being twisted, bent, etc., affecting the subsequent anchoring effect;

[0021] (2) The limiting block and the limiting rod of the present invention limit the protective telescopic block, which is convenient for improving the stability of the protective telescopic block to protect the working anchor plate, preventing the moving ring from being squeezed after the working anchor plate is installed, so that the roller and the baffle move again, affecting the installation effect of the working anchor plate and the steel strand. Description of the Drawings

[0022] Figure 1 Shows the overall structure diagram of the embodiment;

[0023] Figure 2 Shows the bottom structure diagram of the protective telescopic block of the embodiment;

[0024] Figure 3 Shows the structure diagram of the protective telescopic block and the working anchor plate of the embodiment;

[0025] Figure 4 Shows the internal structure diagram of the protective telescopic block of the embodiment;

[0026] Figure 5 Shown is Figure 4 an enlarged view of part A of

[0027] Figure 6 the structural diagram of the working anchor plate of the embodiment;

[0028] Figure 7 the sectional view of the protective expansion block of the embodiment;

[0029] Figure 8 the structural diagram of the adjusting structure and the wedge grips of the embodiment;

[0030] Figure 9 the structural diagram of the adjusting structure of the embodiment.

[0031] In the figure: 1, anchor backing plate; 2, corrugated pipe; 3, protective expansion block; 4, working anchor plate; 5, wedge grips; 6, mounting hole; 7, moving ring; 8, moving rod; 9, first rack; 10, gear; 11, second rack; 12, connecting block; 13, baffle; 14, connecting rod; 15, moving block; 16, round convex; 17, movable block; 18, fixed rod; 19, roller; 20, fixing plate; 21, first spring; 22, first fixing block; 23, connecting plate; 24, limiting plate; 25, slider; 26, connecting spring; 27, limiting rod; 28, limiting block; 29, elastic fixing ring; 30, second fixing block. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0033] The present invention provides a connection and anchoring device for FRP materials, as Figures 1 to 6 shown, including an anchor backing plate 1. On one side at the bottom of the anchor backing plate 1, there is a corrugated pipe 2. On the outer side of one end of the corrugated pipe 2, there is a spiral rib, and one end of the spiral rib is fixedly installed on one side of the anchor backing plate 1. On the side of the anchor backing plate 1 away from the corrugated pipe 2, there is an anchor moving structure;

[0034] The anchor moving structure includes a protective expansion block 3, a working anchor plate 4, wedge grips 5, a mounting hole 6, and an adjusting structure. On one side of the anchor backing plate 1, there is a protective expansion block 3. Inside the protective expansion block 3, there is a working anchor plate 4. On the top of the protective expansion block 3 and the working anchor plate 4, there are mounting holes 6 arranged in a circular array. Inside the mounting hole 6 of the working anchor plate 4, there is a wedge grip 5 inserted. Inside the working anchor plate 4, there is an adjusting structure, and the adjusting structure is arranged in a circular array with the center of the mounting hole 6 as the center.

[0035] Use a drilling rig to drill holes at the predetermined positions, embed the corrugated pipe 2 and the spiral reinforcement in the holes, so that the anchor backing plate 1 is located outside the holes, pass the steel strand through the anchor backing plate 1 and the pre-embedded corrugated pipe 2, then align the steel strand with the mounting holes 6 on the protective expansion block 3 and the working anchor plate 4, so that the steel strand passes through the mounting holes 6, and then guide the movement of the working anchor plate 4 and the protective expansion block 3 through the adjusting structure, which is convenient for keeping the steel strand vertical and preventing the steel strand from skewing, which may lead to non-perpendicularity between the anchor and the steel strand and affect the subsequent anchoring effect. Then install the protective expansion block 3 and the anchor backing plate 1, so that the working anchor plate 4 is installed on the anchor backing plate 1. After the installation of the protective expansion block 3 and the working anchor plate 4 is completed, insert the wedge-shaped clip 5 into the inside of the mounting hole 6 to limit the steel strand, and then continue with the subsequent installation work.

[0036] As Figures 7 to 9 shown, the adjusting structure includes a moving ring 7, a moving rod 8, a first rack 9, a gear 10, a movable rod, a second rack 11, a connecting block 12, a baffle 13, a connecting rod 14, a moving block 15, a circular protrusion 16, a movable block 17, a fixed rod 18 and a roller 19. The bottom of the moving ring 7 is fixedly installed with the moving rod 8. The bottom of the moving rod 8 is fixedly installed with the first rack 9. One side of the first rack 9 is engaged with the gear 10. The middle of the gear 10 is fixedly installed with the movable rod. The other side of the first rack 9 is fixedly installed with the connecting rod 14. One side of the connecting rod 14 is fixedly installed with the moving block 15. The bottom of the moving block 15 is fixedly installed with the circular protrusion 16. The bottom of the circular protrusion 16 is provided with the movable block 17. Both sides of the movable block 17 are fixedly installed with the fixed rods 18. One end of the fixed rod 18 is rotatably connected with the roller 19. One side of the gear 10 is engaged with the second rack 11. One side of the second rack 11 is fixedly installed with the connecting block 12. One side of the connecting block 12 is fixedly installed with the baffle 13. An installation groove is opened in the middle of the working anchor plate 4. An activity opening is opened on the inner wall of the bottom end of the mounting hole 6 of the working anchor plate 4. The activity openings are distributed in a circular array centered on the mounting hole 6. The baffle 13 is located at the activity opening. One side of the baffle 13 is slidably connected with the inner wall of the installation groove. One end of the moving rod 8 passes through the top of the working anchor plate 4 and extends into the protective expansion block 3. The moving ring 7 is located on the top of the wedge-shaped clip 5. Both sides of the movable rod are rotatably connected with the fixing plates 20. The top of the fixing plates 20 is fixedly installed with the inner wall of the top of the installation groove. The bottom of the first rack 9 is fixedly installed with the first spring 21. The bottom of the first spring 21 is fixedly installed with the inner wall of the bottom of the installation groove. The bottom of the movable block 17 is slidably connected with the inner wall of the bottom of the installation groove. The side of the movable block 17 close to the circular protrusion 16 is an inclined surface. The circular protrusion 16 is located at the top of the inclined surface. One side of the bottom end of the movable block 17 is fixedly installed with a second spring. One end of the second spring is fixedly installed with a first fixing block 22. The first fixing block 22 is fixedly installed with the inner wall of the bottom of the installation groove.

[0037] When the steel strand is aligned with the mounting holes 6 on the protective expansion block 3 and the working anchor plate 4, and the steel strand is installed by passing through the mounting holes 6, then move downward to contract the protective expansion block 3. The downward movement of the protective expansion block 3 pushes the moving ring 7 inside it, driving the moving rod 8 to move into the interior of the mounting groove, so that the first rack 9 also moves downward, driving the gear 10 to drive the movable rod to rotate along the fixed plate 20, and then the second rack 11 drives the connecting block 12 and the baffle 13 to move upward. When the first rack 9 moves downward, the first spring 21 is compressed, and through the action of the connecting rod 14 and the moving block 15, it drives the circular protrusion 16 to move downward, so that the circular protrusion 16 moves downward along the inclined surface on one side of the movable block 17, squeezing the movable block 17, stretching the second spring, and the movable block 17 drives the fixed rod 18 and the roller 19 to move along the inner wall of the bottom of the mounting groove towards the movable opening. When the baffle 13 moves upward to expose the movable opening, the roller 19 moves from the movable opening into the mounting hole 6, so that the roller 19 fits against the outer side of the steel strand. Thus, when the protective expansion block 3 and the working anchor plate 4 move, the roller 19 moves along the outer side of the steel strand to guide and limit the steel strand, keeping the steel strand vertical and preventing the steel strand from skewing, thereby facilitating subsequent anchoring work and improving work efficiency.

[0038] As Figures 7 to 9 shown, the first rack 9, the gear 10, the movable rod, the fixed plate 20 and the second rack 11 are located on one side of the movable block 17, the roller 19 is located behind the baffle 13, the connecting rod 14 is in an L shape, and a connecting plate 23 is fixedly installed on the side of the second rack 11 away from the movable block 17, and a limiting plate 24 is fixedly installed on one side of the connecting plate 23.

[0039] The L-shaped connecting rod 14 facilitates connecting the first rack 9 to the moving block 15. When the first rack 9 drives the circular protrusion 16 to move downward, it squeezes the movable block 17, causing the movable block 17 to drive the fixed rod 18 and the roller 19 to move from the movable opening into the interior of the mounting hole 6. Since the first rack 9, the gear 10, the movable rod, the fixed plate 20 and the second rack 11 are located on one side of the movable block 17, it prevents the first rack 9, the gear 10, the movable rod, the fixed plate 20 and the second rack 11 from blocking the movement of the baffle 13, thus making it inconvenient to expose the movable opening and preventing the roller 19 from moving into the interior of the mounting hole 6 to play a guiding and limiting role on the steel strand. And when the first rack 9 moves, through the action of the connecting plate 23, it drives the limiting plate 24 to move downward, so that the limiting plate 24 can move to the bottom of the protective expansion block 3, on both sides of the mounting hole 6, to further limit both sides of the steel strand, further preventing the steel strand from bending and improving the stability of the movement.

[0040] As Figures 7 to 9As shown, the limiting plate 24 is located between the baffle plates 13. There are two connecting plates 23 and two limiting plates 24. The two connecting plates 23 and the limiting plates 24 are symmetrically arranged with the center of the mounting hole 6. A moving port is formed at the bottom of the working anchor plate 4, and the moving port penetrates through the bottom of the protective telescopic block 3. The moving port is located at the bottom of the limiting plate 24.

[0041] When the protective telescopic block 3 and the working anchor plate 4 move along the steel strand, the movement of the first rack 9 causes the limiting plate 24 to move from the moving port to the bottom of the protective telescopic block 3, so that the two connecting plates 23 and the limiting plate 24 can be limited on both sides of the steel strand, keeping the steel strand always in a vertical state, ensuring uniform force and guaranteeing the anchoring effect.

[0042] As Figures 7 to 9 As shown, a limiting structure is symmetrically arranged between the working anchor plate 4 and the protective telescopic block 3. The limiting structure includes a slider 25, a connecting spring 26, a limiting rod 27 and a limiting block 28. Chutes are formed on both sides of the working anchor plate 4. A slot is formed on the inner wall of one side of the chute. The slider 25 is slidably connected inside the chute. A connecting spring 26 is fixedly installed at the bottom of the slider 25, and the bottom of the connecting spring 26 is fixedly installed with the inner wall of the bottom of the chute. A limiting rod 27 is arranged on one side of the slider 25. One end of the limiting rod 27 passes through the slider 25 and is inserted into the slot. The other end of the limiting rod 27 is fixedly installed with the limiting block 28. One end of the limiting rod 27 penetrates through the protective telescopic block 3, and the limiting block 28 is located outside the protective telescopic block 3. Two fixing grooves are formed on the outside of the protective telescopic block 3. A compression spring is fixedly installed on one side of the limiting block 28. The two fixing grooves and the compression spring are both located on both sides of the limiting rod 27, and one end of the compression spring is fixedly installed with the fixing groove.

[0043] The compression spring is conveniently installed through the fixing groove. After the steel strand passes through the installation holes 6 on the protective expansion block 3 and the working anchor plate 4, first move the limiting block 28 away from the protective expansion block 3 to drive the compression spring to stretch, so that the limiting block 28 drives the limiting rod 27 away from the slot and moves to the middle of the slider 25. Then move downward to make the protective expansion block 3 contract. The protective expansion block 3 drives the limiting rod 27 and the slider 25 to move along the chute, so that the connecting spring 26 is compressed. The protective expansion block 3 moves downward to push the moving ring 7 inside it to drive the moving rod 8 to move into the installation groove. Thus, under the action of the first rack 9, the gear 10 and the second rack 11, the baffle 13 moves, and the roller 19 moves into the installation hole 6 to guide and limit the steel strand. When the protective expansion block 3 and the working anchor plate 4 move to one side of the anchor backing plate 1 and are installed, when the protective expansion block 3 moves upward and no longer contracts, the protective expansion block 3 drives the limiting block 28, the limiting rod 27 and the slider 25 to move upward along the chute, so that the connecting spring 26 is stretched, and the limiting rod 27 is aligned with the slot. Then release the limiting block 28. Under the action of the compression spring, the limiting block 28 drives the limiting rod 27 to be inserted into the slot to limit the position of the protective expansion block 3, which is convenient for improving the stability of the protective expansion block 3 to protect the working anchor plate 4, and preventing the moving ring 7 from being squeezed after the working anchor plate 4 is installed, so that the roller 19 and the baffle 13 move again, affecting the installation effect of the working anchor plate 4 and the steel strand.

[0044] As Figure 4 、 Figure 8 shown, an elastic fixing ring 29 is fixedly installed at the top of the working anchor plate 4. A second fixing block 30 is fixedly installed on the outer side of the elastic fixing ring 29. The bottom of the second fixing block 30 is fixedly installed with the top of the working anchor plate 4. The second fixing blocks 30 are distributed in a circular array with the center of the fixing ring. The moving ring 7 is located outside the elastic fixing ring 29 and the second fixing block 30. The elastic fixing ring 29 and the second fixing block 30 are located outside the wedge-shaped clamping plate 5.

[0045] The elastic fixing ring 29 is installed through the second fixing block 30, so that the elastic fixing ring 29 can be at the top of the working anchor plate 4 and at the top of the installation hole 6. After the steel strand and the wedge-shaped clamping plate 5 are installed, the limitation of the steel strand is further improved, the stability inside the installation hole 6 of the steel strand is improved, the wedge-shaped clamping plate 5 is prevented from being skewed, and it is ensured that the wedge-shaped clamping plate 5 can effectively clamp the prestressed tendon during the subsequent tensioning process to achieve the anchoring effect.

[0046] The present invention also provides a method for using the connection and anchoring device of the above FRP material, including the following steps.

[0047] Step 1: Use a drilling rig to drill holes at the predetermined positions, embed the corrugated pipe 2 and the spiral reinforcement in the holes, so that the anchor backing plate 1 is located outside the holes, pass the steel strand through the anchor backing plate 1 and the pre-embedded corrugated pipe 2, and then install the protective expansion block 3 and the working anchor plate 4 at the end of the steel strand;

[0048] Step 2: During installation, align the steel strand with the installation holes 6 on the protective expansion block 3 and the working anchor plate 4, so that the steel strand passes through the installation holes 6. First, move the limiting block 28 away from the protective expansion block 3 to drive the compression spring to stretch, so that the limiting block 28 drives the limiting rod 27 away from the slot and moves to the middle of the slider 25. Then move downward to make the protective expansion block 3 contract. The protective expansion block 3 drives the limiting rod 27 and the slider 25 to move along the chute, so that the connecting spring 26 is compressed. The protective expansion block 3 moves downward and pushes the moving ring 7 inside it to drive the moving rod 8 to move into the installation groove, so that the first rack 9 also moves downward, driving the gear 10 to drive the movable rod to rotate along the fixed plate 20, and then making the second rack 11 drive the connecting block 12 and the baffle 13 to move upward. When the first rack 9 moves downward, the first spring 21 is compressed and drives the round convex 16 to move downward through the connecting rod 14 and the moving block 15, so that the round convex 16 moves downward along the inclined surface on one side of the movable block 17, squeezing the movable block 17, so that the second spring is stretched. The movable block 17 drives the fixed rod 18 and the roller 19 to move along the inner wall of the bottom of the installation groove towards the movable opening. When the baffle 13 moves upward to expose the movable opening, the roller 19 moves from the movable opening into the installation hole 6, so that the roller 19 fits against the outer side of the steel strand;

[0049] Step 3: When the first rack 9 moves downward, it drives the connecting plate 23 and the limiting plate 24 to move simultaneously, so that the limiting plate 24 moves to the bottom of the protective expansion block 3 through the moving opening, and then pushes the protective expansion block 3 and the working anchor plate 4, so that the roller 19 moves along the steel strand, and the steel strand is limited by the limiting plate 24 to prevent the steel strand from bending and deforming. When the protective expansion block 3 and the working anchor plate 4 move to one side of the anchor plate gasket, move the protective expansion block 3 upward. The moving ring 7 is no longer squeezed. Under the action of the first spring 21, it pushes the first rack 9 and the moving rod 8 upward, so that the moving ring 7 moves back to its original position, and the first rack 9 drives the connecting rod 14, the moving block 15 and the round convex 16 upward, no longer squeezing the movable block 17. Under the action of the second spring, the movable block 17 drives the roller 19 into the installation groove, and the second rack 11 drives the connecting block 12 and the baffle 13 to move downward to the movable opening to block the movable opening;

[0050] Step 4: When the protective telescopic block 3 moves upward and stops contracting, the protective telescopic block 3 drives the limiting block 28, the limiting rod 27 and the slider 25 to move upward along the chute, stretching the connecting spring 26 to align the limiting rod 27 with the slot. Then release the limiting block 28. Under the action of the compression spring, the limiting block 28 drives the limiting rod 27 to be inserted into the slot to limit the position of the protective telescopic block 3. Then insert the clip 5 into the installation hole 6 to limit the steel strand. Then install the protective telescopic block 3 and the anchor backing plate 1. After the working anchor plate 4 is installed on the anchor backing plate 1, it is okay.

[0051] Working principle: When in use, drill a hole at a predetermined position with a drill, embed the corrugated pipe 2 and the spiral rib in the hole, so that the anchor backing plate 1 is located outside the hole, pass the steel strand through the anchor backing plate 1 and the pre-embedded corrugated pipe 2, align the steel strand with the mounting holes 6 on the protective expansion block 3 and the working anchor plate 4, so that the steel strand passes through the mounting holes 6. First, move the limiting block 28 away from the protective expansion block 3 to drive the compression spring to stretch, so that the limiting block 28 drives the limiting rod 27 away from the slot and moves to the middle of the slider 25, and then move downward to make the protective expansion block 3 contract. The protective expansion block 3 drives the limiting rod 27 and the slider 25 to move along the chute, so that the connecting spring 26 is compressed. The protective expansion block 3 moves downward to push the moving ring 7 inside it to drive the moving rod 8 to move into the installation groove, so that the first rack 9 also moves downward, driving the gear 10 to drive the movable rod to rotate along the fixed plate 20, and then making the second rack 11 drive the connecting block 12 and the baffle 13 to move upward. When the first rack 9 moves downward, the first spring 21 is compressed and drives the round convex 16 to move downward through the connecting rod 14 and the moving block 15, so that the round convex 16 moves downward along the inclined surface on one side of the movable block 17, squeezing the movable block 17, so that the second spring is stretched. The movable block 17 drives the fixed rod 18 and the roller 19 to move along the inner wall of the bottom of the installation groove towards the movable opening. When the baffle 13 moves upward to expose the movable opening, the roller 19 moves from the movable opening into the installation hole 6, so that the roller 19 fits against the outer side of the steel strand. When the first rack 9 moves downward, it drives the connecting plate 23 and the limiting plate 24 to move simultaneously, so that the limiting plate 24 moves to the bottom of the protective expansion block 3 through the moving opening, and then pushes the protective expansion block 3 and the working anchor plate 4, so that the roller 19 moves along the steel strand, and the steel strand is limited by the limiting plate 24 to prevent the steel strand from bending and deforming. When the protective expansion block 3 and the working anchor plate 4 move to one side of the anchor plate gasket, move the protective expansion block 3 upward. The moving ring 7 is no longer squeezed. Under the action of the first spring 21, it pushes the first rack 9 and the moving rod 8 upward, so that the moving ring 7 moves back to its original position, and the first rack 9 drives the connecting rod 14, the moving block 15 and the round convex 16 to move upward, no longer squeezing the movable block 17. Under the action of the second spring, the movable block 17 drives the roller 19 into the installation groove, and the second rack 11 drives the connecting block 12 and the baffle 13 to move downward to the movable opening to block the movable opening.

[0052] When the protective expansion block 3 moves upward and no longer contracts, the protective expansion block 3 drives the limiting block 28, the limiting rod 27 and the slider 25 to move upward along the chute, so that the connecting spring 26 is stretched to align the limiting rod 27 with the slot, and then release the limiting block 28. Under the action of the compression spring, the limiting block 28 drives the limiting rod 27 to be inserted into the slot to limit the position of the protective expansion block 3. Then insert the clamping piece 5 into the installation hole 6 to limit the steel strand. Then install the protective expansion block 3 and the anchor backing plate 1, and install the working anchor plate 4 on the anchor backing plate 1.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A connection and anchoring device for FRP material, comprising an anchor plate (1), characterized in that: A corrugated tube (2) is provided on one side of the bottom of the anchor pad (1), a spiral rib is provided on the outer side of one end of the corrugated tube (2), one end of the spiral rib is fixedly mounted on one side of the anchor pad (1), and an anchor moving structure is provided on the side of the anchor pad (1) away from the corrugated tube (2); The anchor moving structure comprises a protective telescopic block (3), a working anchor plate (4), a clip (5), a mounting hole (6), and an adjustment structure. A protective telescopic block (3) is arranged on one side of the anchor pad (1), a working anchor plate (4) is arranged inside the protective telescopic block (3), mounting holes (6) distributed in a circular array are opened on the top of the protective telescopic block (3) and the working anchor plate (4), a clip (5) is inserted into the mounting hole (6) of the working anchor plate (4), and an adjustment structure is arranged inside the working anchor plate (4), and the adjustment structure is distributed in a circular array with the mounting hole (6) as the center.

2. The FRP material connection and anchoring device according to claim 1, characterized in that: The adjustment structure comprises a moving ring (7), a moving rod (8), a first rack (9), a gear (10), a movable rod, a second rack (11), a connecting block (12), a baffle (13), a connecting rod (14), a moving block (15), a round convex (16), a movable block (17), a fixed rod (18) and a roller (19); the moving rod (8) is fixedly mounted on the bottom of the moving ring (7); the first rack (9) is fixedly mounted on the bottom of the moving rod (8); a gear (10) is meshed on one side of the first rack (9); a movable rod is fixedly mounted in the middle of the gear (10); the first rack ( 9) A connecting rod (14) is fixedly installed on the other side, a moving block (15) is fixedly installed on one side of the connecting rod (14), a round protrusion (16) is fixedly installed on the bottom of the moving block (15), a movable block (17) is arranged at the bottom of the round protrusion (16), fixed rods (18) are fixedly installed on both sides of the movable block (17), one end of the fixed rod (18) is rotatably connected to a roller (19), one side of the gear (10) is meshed with a second rack (11), one side of the second rack (11) is fixedly installed with a connecting block (12), and one side of the connecting block (12) is fixedly installed with a baffle (13).

3. The FRP material connection and anchoring device according to claim 2, characterized in that: A mounting groove is provided in the middle of the working anchor plate (4), and a movable opening is provided on the inner wall at the bottom end of the mounting hole (6) of the working anchor plate (4). The movable openings are arranged in a circular array with the center of the mounting hole (6). The baffle plate (13) is located at the movable opening, and one side of the baffle plate (13) is slidably connected to the inner wall of the mounting groove. One end of the movable rod (8) passes through the top of the working anchor plate (4) and extends to the inside of the protective telescopic block (3). The movable ring (7) is located at the top of the clip (5). Both sides of the movable rod are rotatably connected with fixed plates (20), and the top of the fixed plate (20) is fixedly installed with the inner wall of the top of the mounting groove. A first spring (21) is fixedly installed at the bottom of the first rack (9), and the bottom of the first spring (21) is fixedly installed with the inner wall of the bottom of the mounting groove.

4. The FRP material connection and anchoring device according to claim 2, characterized in that: The bottom of the movable block (17) is slidably connected to the inner wall of the bottom of the installation groove; the side of the movable block (17) close to the round protrusion (16) is an inclined surface; the round protrusion (16) is located at the top of the inclined surface; a second spring is fixedly installed on one side of the bottom end of the movable block (17); a first fixed block (22) is fixedly installed on one end of the second spring; and the first fixed block (22) is fixedly installed on the inner wall of the bottom of the installation groove.

5. The FRP material connection and anchoring device according to claim 2, characterized in that: The first rack (9), the gear (10), the movable rod, the fixed plate (20) and the second rack (11) are located on one side of the movable block (17); the roller (19) is located on the rear side of the baffle (13); the connecting rod (14) is L-shaped; a connecting plate (23) is fixedly mounted on the side of the second rack (11) away from the movable block (17); and a limiting plate (24) is fixedly mounted on one side of the connecting plate (23).

6. The FRP material connection and anchoring device according to claim 5, characterized in that: The limiting plate (24) is located between the baffles (13), and there are two connecting plates (23) and two limiting plates (24). The two connecting plates (23) and the limiting plates (24) are symmetrically arranged around the center of the mounting hole (6). A movable opening is provided at the bottom of the working anchor plate (4), and the movable opening passes through the bottom of the protective telescopic block (3). The movable opening is located at the bottom of the limiting plate (24).

7. The FRP material connection and anchoring device according to claim 1, characterized in that: A limiting structure is symmetrically arranged between the working anchor plate (4) and the protective telescopic block (3), and the limiting structure comprises a slider (25), a connecting spring (26), a limiting rod (27) and a limiting block (28). Slide grooves are provided on both sides of the working anchor plate (4), and a slot is provided on the inner wall of one side of the slide groove. A slider (25) is slidably connected inside the slide groove. A connecting spring (26) is fixedly installed at the bottom of the slider (25), and the bottom of the connecting spring (26) is fixedly installed with the inner wall of the bottom of the slide groove. A limiting rod (27) is provided on one side of the slider (25), and one end of the limiting rod (27) passes through the slider (25) and is plugged into the slot, and the other end of the limiting rod (27) is fixedly installed with a limiting block (28).

8. The FRP material connection and anchoring device according to claim 7, characterized in that: One end of the limiting rod (27) passes through the protective telescopic block (3); the limiting block (28) is located outside the protective telescopic block (3); two fixing grooves are provided on the outside of the protective telescopic block (3); a compression spring is fixedly mounted on one side of the limiting block (28); the two fixing grooves and the compression spring are both located on both sides of the limiting rod (27); and one end of the compression spring is fixedly mounted on the fixing groove.

9. The FRP material connection and anchoring device according to claim 1, characterized in that: An elastic fixing ring (29) is fixedly mounted on the top of the working anchor plate (4), a second fixing block (30) is fixedly mounted on the outside of the elastic fixing ring (29), the bottom of the second fixing block (30) is fixedly mounted on the top of the working anchor plate (4), the second fixing blocks (30) are distributed in a circular array with the center of the fixing ring, the moving ring (7) is located on the outside of the elastic fixing ring (29) and the second fixing block (30), and the elastic fixing ring (29) and the second fixing block (30) are located on the outside of the clamp (5).

10. A method for using the FRP material connection and anchoring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Use a drilling machine to drill a hole at a predetermined position, embed the corrugated pipe (2) and the spiral reinforcement in the hole, so that the anchor plate (1) is located outside the hole, pass the steel strand through the anchor plate (1) and the pre-embedded corrugated pipe (2), and then install the protective telescopic block (3) and the working anchor plate (4) at the end of the steel strand; Step 2: During installation, align the steel strand with the mounting holes (6) on the protective telescopic block (3) and the working anchor plate (4), so that the steel strand passes through the mounting hole (6), and first move the limiting block (28) away from the protective telescopic block (3) to drive the compression spring to stretch, so that the limiting block (28) drives the limiting rod (27) away from the slot and moves to the middle of the slider (25), and then moves downward to make the protective telescopic block (3) contract, and the protective telescopic block (3) drives the limiting rod (27) and the slider (25) to move along the slide groove, so that the connecting spring (26) is compressed, and the protective telescopic block (3) moves downward to push the moving ring (7) inside it to drive the moving rod (8) to move into the inside of the mounting groove, so that the first rack (9) also moves downward, and the gear (10) drives the gear (10) to move. The movable rod rotates along the fixed plate (20), thereby causing the second rack (11) to drive the connecting block (12) and the baffle (13) to move upward. When the first rack (9) moves downward, the first spring (21) is compressed and drives the convex portion (16) to move downward through the action of the connecting rod (14) and the movable block (15), so that the convex portion (16) moves downward along the inclined surface of one side of the movable block (17), squeezing the movable block (17) so that the second spring stretches. The movable block (17) drives the fixed rod (18) and the roller (19) to move along the inner wall of the bottom of the installation groove toward the movable opening. When the baffle (13) moves upward to expose the movable opening, the roller (19) moves from the movable opening into the installation hole (6), so that the roller (19) fits the outer side of the steel strand. Step 3: When the first rack (9) moves downward, it drives the connecting plate (23) and the limiting plate (24) to move simultaneously, so that the limiting plate (24) moves to the bottom of the protective telescopic block (3) through the moving opening, and then pushes the protective telescopic block (3) and the working anchor plate (4), so that the roller (19) moves along the steel strand, and the steel strand is limited by the limiting plate (24) to prevent the steel strand from bending and deforming. When the protective telescopic block (3) and the working anchor plate (4) move to one side of the anchor plate gasket, the protective telescopic block (3) is moved upward, and the moving ring (7) The movable block (17) is no longer squeezed, and under the action of the first spring (21), the first rack (9) and the moving rod (8) are pushed upward, so that the moving ring (7) moves to the original position, and the first rack (9) drives the connecting rod (14), the moving block (15) and the round protrusion (16) to move upward, and no longer squeezes the movable block (17). Under the action of the second spring, the movable block (17) drives the roller (19) to the inside of the installation groove, and the second rack (11) drives the connecting block (12) and the baffle (13) to move downward to the movable opening to cover the movable opening; Step 4: When the protective telescopic block (3) moves upward and no longer contracts, the protective telescopic block (3) drives the limiting block (28), the limiting rod (27) and the slider (25) to move upward along the slide groove, so that the connecting spring (26) stretches to align the limiting rod (27) with the slot, and then the limiting block (28) is released. Under the action of the compression spring, the limiting block (28) drives the limiting rod (27) to be plugged into the slot to limit the position of the protective telescopic block (3). Then the clip (5) is inserted into the inside of the installation hole (6) to limit the steel strand. Then the protective telescopic block (3) is installed with the anchor plate (1), and the working anchor plate (4) is installed on the anchor plate (1).

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