Corrugated steel pipe reinforcing device and method suitable for reinforced concrete pier column

Abstract

The invention provides a corrugated steel pipe reinforcing device and method suitable for a reinforced concrete pier stud, and belongs to the technical field of concrete pier stud reinforcing devices.The corrugated steel pipe reinforcing device comprises galvanized corrugated steel pipes, the galvanized corrugated steel pipes are installed on the left side and the right side of an existing concrete pier stud correspondingly, and mounting holes are formed in the front side and the rear side of each galvanized corrugated steel pipe correspondingly; a unilateral bolt is installed between every two adjacent galvanized corrugated steel pipes, rubber strips are arranged at the bottoms of the galvanized corrugated steel pipes, and top sealing rings are installed at the tops of the galvanized corrugated steel pipes. The problems that the existing reinforced concrete pier column reinforcement cannot effectively limit the non-stress deformation of a grouting material and cannot reduce the debonding risk of a new and old material interface are solved, and a galvanized corrugated steel pipe with excellent corrosion resistance is adopted to replace a common steel pipe to serve as a coating shell for reinforcing the existing pier column; the traditional advantages of an outer sleeve steel pipe method in the aspect of mechanical properties can be kept, and the defects of the outer sleeve steel pipe method in the aspect of durability can be overcome.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pier column reinforcement devices, and in particular to a corrugated steel pipe reinforcement device and method suitable for reinforced concrete pier columns. Background Art

[0002] Reinforced concrete piers are widely used in structures such as bridges and buildings. However, under long-term loads and environmental factors, they are prone to cracks, deformations and other problems, resulting in a decrease in structural strength and stability. Therefore, reinforcement devices are needed. The existing reinforced concrete pier reinforcement devices still have some shortcomings.

[0003] For example, the invention patent with the publication number CN107268459B discloses a construction method for reinforcing reinforced concrete piers with prestressed fiber cloth, including two anchor rods, two clips, two anchor heads, four one-way bearings for maintaining prestress, eight wedges and fiber cloth. Determine the position to be reinforced, perform grinding, patching, and apply epoxy adhesive layer, then complete the connection between the fiber cloth and the anchor, and wrap the connected fiber cloth around the position to be reinforced with the epoxy adhesive layer, and use a force wrench to tension the fiber cloth, thereby achieving the reinforcement construction of the reinforced concrete pier. This method is simple to operate, and avoids the bending of the screw when the tensioning force is large during the force application process of the clip-type anchor. The anchor device used in this method requires a small operating space, has a simple structure, is easy to operate, and is low in cost. However, it cannot effectively limit the non-stress deformation of the grouting material, cannot reduce the risk of debonding at the interface between the new and old materials, and is not suitable for reinforcing existing piers. Summary of the invention

[0004] The present invention aims to solve the problems that the existing reinforced concrete pier column reinforcement cannot effectively limit the non-stress deformation of the grouting material and cannot reduce the risk of debonding at the interface between new and old materials, and in view of the problems existing in the existing reinforcement devices, and further proposes a corrugated steel pipe reinforcement device and method suitable for reinforced concrete pier columns.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a corrugated steel pipe reinforcement device suitable for reinforced concrete piers, comprising galvanized corrugated steel pipes, galvanized corrugated steel pipes are installed on both sides of the left and right sides of the existing concrete pier, mounting holes are provided on the front and back sides of the galvanized corrugated steel pipes, a single-sided bolt is installed between two adjacent galvanized corrugated steel pipes, a rubber strip is provided at the bottom of the galvanized corrugated steel pipe, a capping ring is installed on the top of the galvanized corrugated steel pipe, a first connecting pipe is provided on the capping ring, a second connecting pipe is connected to the first connecting pipe, and a funnel is installed above the second connecting pipe.

[0006] As a preferred solution of the present invention, a support assembly is provided on the outer side of the galvanized corrugated steel pipe, a third support rod is installed on the side of the support assembly, a motor is fixedly connected to the third support rod, a first connecting ring is installed on the top of the support assembly, a first connecting rod and a second connecting rod are slidably installed on the first connecting ring, a second connecting ring is fixedly connected to the top of the first connecting rod, the top of the second connecting rod is connected to the funnel, a feed box is fixedly connected above the second connecting ring, a through hole for docking with the funnel is opened on the feed box, the feed box and the funnel are fixedly connected, a cleaning assembly is installed on the motor, a switching assembly is installed on the cleaning assembly, a detection assembly is installed on the first connecting ring and the support assembly, and a first rotating wheel is fixedly connected to the output shaft of the motor.

[0007] As a preferred solution of the present invention, the support assembly includes a second support ring arranged on the outside of the galvanized corrugated steel pipe, the second support ring is fixedly connected to a second support rod, a first support rod is slidably installed in the second support rod, a first support ring is fixedly connected below the first support rod, a screw rod is rotatably installed on the first support ring, and the screw rod and the second support ring are threadedly connected.

[0008] As a preferred solution of the present invention, the outer sides of the second connecting ring and the first rotating wheel are both provided with longitudinal convex patterns, the first rotating wheel is made of rubber, and the feed box and the funnel form a rotating structure through the second connecting ring and the first rotating wheel and the first connecting ring.

[0009] As a preferred solution of the present invention, the cleaning assembly includes a first fixed rod fixedly connected to the motor housing, a second fixed rod is welded on the first fixed rod, a fixing ring is welded on the second fixed rod, a first key rod is rotatably installed in the fixing ring, a second key rod is fixedly arranged below the first key rod, an outer key of the second key rod is connected to a first scraper, a groove is provided on the first key rod, a damping pad is fixedly arranged in the groove, a second scraper is installed at the bottom of the first scraper, and the width of the second scraper decreases from bottom to top.

[0010] As a preferred solution of the present invention, the switching assembly includes a spline groove opened on the first key rod, the third key rod is connected to the key in the spline groove, a second rotating wheel is fixedly arranged on the top of the third key rod, the material of the second rotating wheel is rubber material, the interior of the second rotating wheel is hollow, and an air nozzle is arranged on the second rotating wheel.

[0011] As a preferred solution of the present invention, the detection assembly includes a connecting block installed on a first connecting ring and a second supporting ring, a bonding plate is rotatably installed on the connecting block, the bonding plate and the outer surface of the galvanized corrugated steel pipe are bonded to each other, a fixed shaft is fixedly provided on the connecting block, a torsion spring is installed between the fixed shaft and the bonding plate, and a connecting rod is fixedly connected between the connecting block on the first connecting ring and the connecting block on the second support ring.

[0012] As a preferred solution of the present invention, the connecting block, the first connecting ring, the second connecting ring, the feed box, the first support ring and the second support ring are all divided into a left half and a right half, and the first connecting ring, the feed box, the first support ring and the second support ring are all installed with connecting components.

[0013] As a preferred solution of the present invention, the connection structure between the connecting component and the first connecting ring, the feed box, the first support ring and the second support ring is the same, the connecting component includes a first connecting plate fixedly connected to the right half of the feed box, the left half of the feed box is fixedly connected to the second connecting plate, the second connecting plate is fixedly connected to a spring, the spring is fixedly connected to a lap ring, a docking bolt is rotatably installed in the lap ring, and the docking bolt is threadedly connected to the first connecting plate and the second connecting plate.

[0014] A corrugated steel pipe reinforcement method suitable for reinforced concrete piers comprises the following steps:

[0015] S1: After the site preparation work is completed, two pieces of prefabricated galvanized corrugated steel pipes are fastened together and spliced ​​on both sides of the existing concrete pier through single-sided bolts and mounting holes;

[0016] S2: After the rubber strip is sealed at the bottom, low shrinkage and high strength grouting material is poured into the gap between the existing concrete pier and the galvanized corrugated steel pipe through the funnel, the first connecting pipe and the second connecting pipe to form the grouting material in one step.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This application effectively solves the problem that the existing reinforced concrete pier reinforcement cannot effectively limit the non-stress deformation of the grouting material and cannot reduce the risk of debonding at the interface between the new and old materials. The present invention uses galvanized corrugated steel pipes with excellent corrosion resistance to replace ordinary steel pipes as the cladding shell for reinforcing the existing piers, which can not only maintain the traditional advantages of the outer jacket steel pipe method in mechanical properties, but also improve its shortcomings in durability. The specific advantages are reflected in the following aspects:

[0019] 1. Using galvanized corrugated steel pipes with superior corrosion resistance instead of ordinary steel pipes as the cladding shell for reinforcing existing piers can not only maintain the traditional advantages of the outer jacket steel pipe method in mechanical properties, but also improve its shortcomings in durability. In addition, the unique corrugated shape of the corrugated steel pipe can effectively limit the non-stress deformation of the grouting material, reduce the risk of debonding at the interface between new and old materials, and enhance the collaborative working performance of the corrugated steel pipe and the grouting material. The construction process of this reinforcement technology is simple and easy: after the on-site preparation work is completed, the two pieces of semi-circular corrugated steel pipes prefabricated in the factory are buckled, quickly spliced ​​with single-sided bolts, and the low-shrinkage and high-strength grouting material is poured into the bottom after the rubber strip is sealed to form it in one step, eliminating the complicated template installation and removal process.

[0020] 2. Through the connection assembly on the device, the device can be connected through the second connecting ring, feed box, first connecting ring, second support ring and first support ring divided left and right. By screwing the connection bolts into the first connection plate and the second connection plate, the device as a whole can be connected and split, which is suitable for use with existing concrete piers. The device is also provided with a support assembly. By rotating the screw on the support assembly, the second support ring and the third support ring move vertically under the guidance of the first support rod and the second support rod, so as to accurately adjust the installation position of the galvanized corrugated steel pipe later.

[0021] 3. By setting the second connecting ring, the first rotating wheel, the feed box and the cleaning assembly, the device can drive the first rotating wheel to rotate through the motor when injecting concrete, thereby driving the second connecting ring and the feed box to rotate. During the process of pouring concrete, the funnel can make a circular motion along the circumference of the galvanized corrugated steel pipe, thereby ensuring uniform filling of the concrete. Since the first fixed rod and the motor housing are fixedly connected, during the rotation of the feed box, the first scraper and the second scraper remain stationary to continuously clean the inner wall of the feed box. Moreover, since the second scraper is a horizontally placed triangular prism structure, it will have a downward component of force when it is pushed by the concrete, thereby ensuring that the first scraper and the second scraper are always located at the bottom of the second key rod.

[0022] 4. The device is provided with grooves, damping pads and switching components. The device can move the first scraper upward to the position of the first key rod, and press the first scraper by the damping pad. At this time, the third key rod is installed in the spline groove, so that the convex pattern on the outside of the second runner can abut the upper part of the concrete pier, so that the feed box rotates and drives the second key rod to rotate during continuous rotation, thereby mixing the concrete during the grouting process. The device can switch between the two functions of cleaning the feed box during the grouting process and mixing the concrete during the grouting process.

[0023] 5. The device is provided with a detection component. After the galvanized corrugated steel pipe is installed, the support component can be rotated to drive the detection component to rotate as a whole. The bonding plate on the detection component can always maintain a bonding state with the galvanized corrugated steel pipe. By comparing whether the rotation of the support component is hindered after and before grouting or whether the gap between the galvanized corrugated steel pipe and the bonding plate is too large, it can be judged whether the galvanized corrugated steel pipe on the device is deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the disassembly structure of the galvanized corrugated steel pipe of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure between the support assembly and the third support rod of the present invention;

[0028] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at center A;

[0029] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 6 yes Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0031] Figure 7 yes Figure 3 A magnified schematic diagram of the structure at D in the middle;

[0032] Figure 8 yes Figure 3 A magnified schematic diagram of the structure at E in the middle;

[0033] Fig. 9 It is a schematic diagram of the connection structure between the second connecting rod and the funnel of the present invention;

[0034] Fig.10 yes Fig. 9 A magnified schematic diagram of the structure at F in the middle;

[0035] Fig.11 yes Fig. 9 A magnified schematic diagram of the structure at G in the middle;

[0036] Fig.12 It is a schematic diagram of the connection structure between the first scraper and the second scraper of the present invention.

[0037] Figure numerals: 1. existing concrete pier; 2. galvanized corrugated steel pipe; 3. mounting hole; 4. single-sided bolt; 5. rubber strip; 6. first connecting pipe; 7. second connecting pipe; 8. funnel; 9. support assembly; 901. first support ring; 902. first support rod; 903. screw; 904. second support ring; 905. second support rod; 10. third support rod; 11. first connecting ring; 12. first connecting rod; 13. second connecting rod; 14. second connecting ring; 15. feed box; 16. motor; 17. first rotating wheel; 18. cleaning assembly; 1801. first fixing rod; 1802. second fixing rod; 1803. fixing ring ; 1804, first key rod; 1805, second key rod; 1806, first scraper; 1807, second scraper; 19, through hole; 20, switching assembly; 2001, spline groove; 2002, third key rod; 2003, second runner; 2004, air nozzle; 21, groove; 22, damping pad; 23, connecting assembly; 2301, first connecting plate; 2302, second connecting plate; 2303, spring; 2304, lap ring; 2305, docking bolt; 24, detection assembly; 2401, connecting block; 2402, fitting plate; 2403, fixed shaft; 2404, torsion spring; 2405, connecting rod; 25, capping ring. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] like Figure 1-Figure 12As shown, a corrugated steel pipe reinforcement device suitable for reinforced concrete piers includes a galvanized corrugated steel pipe 2, galvanized corrugated steel pipes 2 are installed on both sides of the existing concrete pier 1, mounting holes 3 are provided on both sides of the front and rear of the galvanized corrugated steel pipe 2, a single-sided bolt 4 is installed between two adjacent galvanized corrugated steel pipes 2, a rubber strip 5 is provided at the bottom of the galvanized corrugated steel pipe 2, a capping ring 25 is installed on the top of the galvanized corrugated steel pipe 2, a first connecting pipe 6 is provided on the capping ring 25, a second connecting pipe 7 is connected to the first connecting pipe 6, and a funnel 8 is installed above the second connecting pipe 7. Using galvanized corrugated steel pipes 2 with excellent corrosion resistance to replace ordinary steel pipes as the coating shell for reinforcing existing concrete piers 1 can not only maintain the traditional advantages of the outer jacket steel pipe method in mechanical properties, but also improve its shortcomings in durability. In addition, the unique corrugated shape of the galvanized corrugated steel pipe 2 can effectively limit the non-stress deformation of the grouting material, reduce the risk of debonding at the interface between the new and old materials, and enhance the cooperative working performance of the galvanized corrugated steel pipe 2 and the grouting material. The construction process of this reinforcement technology is simple and easy. After the on-site preparation work is completed, the installation holes 3 on the two semi-circular galvanized corrugated steel pipes 2 prefabricated in the factory are aligned, and they are quickly spliced ​​by single-sided bolts 4. After the rubber strip 5 is sealed at the bottom, low-shrinkage high-strength grouting material is poured through the first connecting pipe 6, the second connecting pipe 7 and the funnel 8 to form it in one step, eliminating the complicated template installation and removal process.

[0043] In this embodiment, a support assembly 9 is provided on the outer side of the galvanized corrugated steel pipe 2, and a third support rod 10 is installed on the side of the support assembly 9. The support assembly 9 is used to adjust the initial height of the third support rod 10, thereby changing the initial position of the galvanized corrugated steel pipe 2. A motor 16 is fixedly connected to the third support rod 10, and a first connecting ring 11 is installed on the top of the support assembly 9. A first connecting rod 12 and a second connecting rod 13 are slidably installed on the first connecting ring 11. The top of the first connecting rod 12 is fixedly connected to the second connecting ring 14, and the top of the second connecting rod 13 is connected to the funnel 8. Subsequently, the funnel 8 can be used to feed the galvanized corrugated steel pipe 2 and the empty space between the pier column. Concrete is injected into the gap, a feed box 15 is fixedly connected to the top of the second connecting ring 14, and a through hole 19 is opened on the feed box 15 for docking with the funnel 8, the feed box 15 and the funnel 8 are fixedly connected, a cleaning component 18 is installed on the motor 16, and a switching component 20 is installed on the cleaning component 18, a detection component 24 is installed on the first connecting ring 11 and the support component 9, and a first rotating wheel 17 is fixedly connected to the output shaft of the motor 16, and the first rotating wheel 17 is driven to rotate by the motor 16, thereby driving the second connecting ring 14 and the feed box 15 to rotate, so as to evenly fill the gap between the galvanized corrugated steel pipe 2 and the pier when concrete is injected later.

[0044] In this embodiment, the support assembly 9 includes a second support ring 904 arranged on the outside of the galvanized corrugated steel pipe 2, and a second support rod 905 is fixedly connected to the second support ring 904, and a first support rod 902 is slidably installed in the second support rod 905. A first support ring 901 is fixedly connected below the first support rod 902, and a screw rod 903 is rotatably installed on the first support ring 901. The screw rod 903 and the second support ring 904 are threadedly connected. The device can rotate the screw rod 903 on the first support ring 901, and the second support ring 904 can move vertically up and down under the guidance of the second support rod 905 and the first support ring 901, so as to subsequently change the installation height of the galvanized corrugated steel pipe 2.

[0045] In this embodiment, the outer sides of the second connecting ring 14 and the first rotating wheel 17 are provided with longitudinal convex grooves. The material of the first rotating wheel 17 is rubber. The feed box 15 and the funnel 8 form a rotating structure with the first connecting ring 11 through the second connecting ring 14 and the first rotating wheel 17. When the first rotating wheel 17 rotates, it will drive the second connecting ring 14, the feed box 15 and the funnel 8 to rotate. During the rotation of the funnel 8, the feed can be rotated to ensure uniform filling of the concrete slurry.

[0046] In this embodiment, the cleaning assembly 18 includes a first fixing rod 1801 fixedly connected to the housing of the motor 16, a second fixing rod 1802 is welded to the first fixing rod 1801, a fixing ring 1803 is welded to the second fixing rod 1802, a first key rod 1804 is rotatably installed in the fixing ring 1803, a second key rod 1805 is fixedly arranged below the first key rod 1804, an outer key of the second key rod 1805 is connected to a first scraper 1806, a groove 21 is opened on the first key rod 1804, and a damping pad 22 is fixedly arranged in the groove 21 The second scraper 1807 is installed at the bottom of the first scraper 1806. The width of the second scraper 1807 decreases from bottom to top. The second scraper 1807 is a horizontal triangular prism structure, which can ensure that when the first scraper 1806 makes a circular motion, the concrete impacting the inclined surface of the second scraper 1807 can generate a downward force, thereby keeping the first scraper 1806 always in a downward pressure state, and it does not affect the subsequent manual upward movement of the first scraper 1806. When the first scraper 1806 is in the lower position, the residual concrete can be cleaned after the concrete is injected. When the first scraper 1806 moves upward to the position of the first key rod 1804, the damping pad 22 in the groove 21 can press the first scraper 1806, so that the cleaning function of the cleaning component 18 can be switched to the mixing function later.

[0047] In this embodiment, the switching component 20 includes a spline groove 2001 opened on the first key rod 1804, and the third key rod 2002 is connected to the key inside the spline groove 2001. The second runner 2003 is fixedly arranged on the top of the third key rod 2002. The material of the second runner 2003 is rubber material. The interior of the second runner 2003 is hollow. The second runner 2003 is provided with an air nozzle 2004. The device can install the third key rod 2002 into the interior of the spline groove 2001, and an appropriate amount of gas can be injected into the hollow second runner 2003 through the air nozzle 2004, thereby changing the expansion state of the second runner 2003. The second runner 2003 can abut against the pier, so that the second runner 2003 can rotate itself when performing a circular motion, and then drive the first key rod 1804 to rotate through the third key rod 2002 and the spline groove 2001, so as to continuously turn the concrete during the subsequent concrete injection process.

[0048] In this embodiment, the detection component 24 includes a connecting block 2401 installed on the first connecting ring 11 and the second support ring 904, and a bonding plate 2402 is rotatably installed on the connecting block 2401. The bonding plate 2402 and the outer surface of the galvanized corrugated steel pipe 2 are bonded to each other. A fixed shaft 2403 is fixedly arranged on the connecting block 2401, and a torsion spring 2404 is installed between the fixed shaft 2403 and the bonding plate 2402. A connecting rod 2405 is fixedly connected between the connecting block 2401 on the first connecting ring 11 and the connecting block 2401 on the second support ring 904. The torsion spring 2404 outside the fixed shaft 2403 can make the bonding plate 2402 rotate. By rotating the detection component 24 as a whole, the bonding plate 2402 is rotated on the corrugated plate, and it is observed whether the bonding plate 2402 always remains bonded after rotating one circle, thereby judging whether the corrugated plate of the device is deformed.

[0049] In this embodiment, the connecting block 2401, the first connecting ring 11, the second connecting ring 14, the feed box 15, the first support ring 901 and the second support ring 904 are divided into a left half and a right half, and the first connecting ring 11, the feed box 15, the first support ring 901 and the second support ring 904 are all installed with a connecting assembly 23. The left and right divided connecting block 2401, the first connecting ring 11, the second connecting ring 14, the feed box 15, the first support ring 901 and the second support ring 904 facilitate the subsequent left and right splitting or docking of the entire device to adapt to the use of existing piers.

[0050] In this embodiment, the connection structures between the connecting component 23 and the first connecting ring 11, the feed box 15, the first support ring 901 and the second support ring 904 are all the same. The connecting component 23 includes a first connecting plate 2301 fixedly connected to the right half of the feed box 15, and the left half of the feed box 15 is fixedly connected to the second connecting plate 2302, and the second connecting plate 2302 is fixedly connected to a spring 2303, and the spring 2303 is fixedly connected to a lap ring 2304, and a docking bolt 2305 is rotatably installed in the lap ring 2304, and the docking bolt 2305 and the first connecting plate 2301 and the second connecting plate 2302 are all threadedly connected. The spring 2303 enables the docking bolt 2305 to press the first connecting plate 2301 and the second connecting plate 2302, so as to facilitate the subsequent rapid fixation of the left and right halves of the feed box 15.

[0051] It should be noted that the present invention is a corrugated steel pipe reinforcement device and method suitable for reinforced concrete piers. First, after the site preparation work is completed, Figure 1 and Figure 2 As shown, two pieces of prefabricated galvanized corrugated steel pipes 2 are fastened together, and the galvanized corrugated steel pipes 2 are spliced ​​on both sides of the exterior of the existing concrete pier 1 through single-sided bolts 4 and mounting holes 3. After the rubber strip 5 is sealed at the bottom, low-shrinkage high-strength grouting material is poured into the gap between the existing concrete pier 1 and the galvanized corrugated steel pipe 2 through the funnel 8, the first connecting pipe 6 and the second connecting pipe 7 to form the grouting material in one step. Figure 3 As shown, the device can change the initial position of the galvanized corrugated steel pipe 2 by rotating the screw 903 on the first support ring 901, and the second support ring 904 moves vertically up and down under the guidance of the second support rod 905 and the first support ring 901, thereby changing the installation height of the galvanized corrugated steel pipe 2 and the third support rod 10.

[0052] like Figure 3-Figure 12As shown, during grouting, the device injects concrete into the feed box 15, and the slurry is sent into the funnel 8 through the through hole 19 on the feed box 15, and the concrete is injected into the gap between the existing concrete pier 1 and the galvanized corrugated steel pipe 2 through the first connecting pipe 6 and the second connecting pipe 7 below the funnel 8. During the process of injecting concrete, the first wheel 17 is driven to rotate by the motor 16, and the first wheel 17 abuts against the second connecting ring 14, driving the second connecting ring 14 and the feed box 15 to rotate, and the second connecting ring 14 and the feed box 15 rotate on the first connecting ring 11 through the first connecting rod 12 and the second connecting rod 13, so that the first connecting pipe 6 drives the capping ring 25 to rotate as a whole, and grouting can be carried out during the rotation to ensure uniform grouting. Since the width of the second scraper 1807 decreases from bottom to top, when the first scraper 1806 makes a circular motion, the device can use the inclined surfaces on both sides of the second scraper 1807 to make the concrete impact the inclined surfaces of the second scraper 1807 to generate a downward force, keep the first scraper 1806 always in a downward pressure state, and do not affect the subsequent manual upward movement of the first scraper 1806. When the first scraper 1806 is located at the lower position, the concrete on the inner wall of the feed box 15 can be cleaned while the concrete is injected. When the first scraper 1806 moves upward to the position of the first key rod 1804, the damping pad 22 in the groove 21 can press the first scraper 1806, so that the cleaning function of the cleaning component 18 can be switched to the mixing function later. When switching to the mixing function, the third key rod 2002 is installed into the spline groove 2001, and a proper amount of gas is injected into the second runner 2003 made of rubber and hollow inside through the air nozzle 2004, so as to change the expansion degree of the second runner 2003. The second runner 2003 can abut against the pier, so that the second runner 2003 can rotate itself when performing a circular motion, and then the first key rod 1804 and the second key rod 1805 are driven to rotate through the third key rod 2002 and the spline groove 2001, so as to continuously turn the concrete during the process of injecting concrete.

[0053] like Figure 3 , Figure 6 , Figure 8 , Fig. 9 and Fig.10As shown, the torsion spring 2404 on the outside of the fixed shaft 2403 can make the bonding plate 2402 rotate so as to bypass the single-sided bolt 4 later, and rotate the bonding plate 2402 on the galvanized corrugated steel pipe 2 by rotating the detection component 24 as a whole, and observe whether the bonding plate 2402 always keeps in contact with the galvanized corrugated steel pipe 2 after one rotation, so as to judge whether the galvanized corrugated steel pipe 2 of the device is deformed. The left-right split connection block 2401, the first connection ring 11, the second connection ring 14, the feed box 15, the first support ring 901 and the second support ring 904 can be split or docked by the connection component 23 to adapt to the existing pier for use. The spring 2303 on the second connecting plate 2302 enables the docking bolts 2305 to press the first connecting plate 2301 and the second connecting plate 2302, making it convenient to quickly screw the docking bolts 2305 into the first connecting plate 2301 and the second connecting plate 2302, thereby fixing the left and right halves of the feed box 15.

[0054] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A corrugated steel pipe reinforcement device suitable for reinforced concrete piers, comprising a galvanized corrugated steel pipe (2), characterized in that: Galvanized corrugated steel pipes (2) are installed on both left and right sides of an existing concrete pier (1), mounting holes (3) are provided on both front and rear sides of the galvanized corrugated steel pipes (2), single-sided bolts (4) are installed between two adjacent galvanized corrugated steel pipes (2), rubber strips (5) are provided at the bottom of the galvanized corrugated steel pipes (2), a capping ring (25) is installed at the top of the galvanized corrugated steel pipes (2), a first connecting pipe (6) is provided on the capping ring (25), a second connecting pipe (7) is connected to the first connecting pipe (6), and a funnel (8) is installed above the second connecting pipe (7).

2. A corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 1, characterized in that: A support assembly (9) is arranged on the outer side of the galvanized corrugated steel pipe (2), a third support rod (10) is installed on the side of the support assembly (9), a motor (16) is fixedly connected to the third support rod (10), a first connecting ring (11) is installed on the top of the support assembly (9), a first connecting rod (12) and a second connecting rod (13) are slidably installed on the first connecting ring (11), a second connecting ring (14) is fixedly connected to the top of the first connecting rod (12), and the top of the second connecting rod (13) is connected to the funnel (8). A feed box (15) is fixedly connected to the upper part of the second connecting ring (14), a through hole (19) for docking with the funnel (8) is provided on the feed box (15), the feed box (15) and the funnel (8) are fixedly connected, a cleaning component (18) is installed on the motor (16), a switching component (20) is installed on the cleaning component (18), a detection component (24) is installed on the first connecting ring (11) and the supporting component (9), and a first rotating wheel (17) is fixedly connected to the output shaft of the motor (16).

3. A corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 2, characterized in that: The support assembly (9) comprises a second support ring (904) arranged on the outside of the galvanized corrugated steel pipe (2), the second support ring (904) is fixedly connected to a second support rod (905), the second support rod (905) is slidably installed with a first support rod (902), the first support ring (901) is fixedly connected below the first support rod (902), a screw rod (903) is rotatably installed on the first support ring (901), and the screw rod (903) and the second support ring (904) are threadedly connected.

4. The corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 2, characterized in that: The outer sides of the second connecting ring (14) and the first rotating wheel (17) are both provided with longitudinal convex patterns, the first rotating wheel (17) is made of rubber material, and the feed box (15) and the funnel (8) form a rotating structure through the second connecting ring (14) and the first rotating wheel (17) and the first connecting ring (11).

5. The corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 2, characterized in that: The cleaning assembly (18) comprises a first fixing rod (1801) fixedly connected to the housing of the motor (16), a second fixing rod (1802) being welded to the first fixing rod (1801), a fixing ring (1803) being welded to the second fixing rod (1802), a first key rod (1804) being rotatably mounted in the fixing ring (1803), a second key rod (1805) being fixedly mounted below the first key rod (1804), a first scraper (1806) being connected to the outer key of the second key rod (1805), a groove (21) being provided on the first key rod (1804), a damping pad (22) being fixedly mounted in the groove (21), a second scraper (1807) being mounted at the bottom of the first scraper (1806), and the width of the second scraper (1807) decreasing from bottom to top.

6. The corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 2, characterized in that: The switching assembly (20) comprises a spline groove (2001) formed on a first key rod (1804); a third key rod (2002) is key-connected to the spline groove (2001); a second rotating wheel (2003) is fixedly arranged on the top of the third key rod (2002); the second rotating wheel (2003) is made of rubber; the interior of the second rotating wheel (2003) is hollow; and an air nozzle (2004) is arranged on the second rotating wheel (2003).

7. The corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 3, characterized in that: The detection component (24) includes a connecting block (2401) installed on the first connecting ring (11) and the second supporting ring (904); a bonding plate (2402) is rotatably installed on the connecting block (2401); the bonding plate (2402) and the outer surface of the galvanized corrugated steel pipe (2) are bonded to each other; a fixed shaft (2403) is fixedly arranged on the connecting block (2401); a torsion spring (2404) is installed between the fixed shaft (2403) and the bonding plate (2402); a connecting rod (2405) is fixedly connected between the connecting block (2401) on the first connecting ring (11) and the connecting block (2401) on the second supporting ring (904).

8. The corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 7, characterized in that: The connecting block (2401), the first connecting ring (11), the second connecting ring (14), the feed box (15), the first supporting ring (901) and the second supporting ring (904) are each divided into a left half and a right half, and a connecting assembly (23) is installed on the first connecting ring (11), the feed box (15), the first supporting ring (901) and the second supporting ring (904).

9. A corrugated steel pipe reinforcement device suitable for reinforced concrete piers according to claim 8, characterized in that: The connection structures between the connecting component (23) and the first connecting ring (11), the feed box (15), the first support ring (901) and the second support ring (904) are the same. The connecting component (23) includes a first connecting plate (2301) fixedly connected to the right half of the feed box (15), and the left half of the feed box (15) is fixedly connected to a second connecting plate (2302), and a spring (2303) is fixedly connected to the second connecting plate (2302), and a lap ring (2304) is fixedly connected to the spring (2303), and a docking bolt (2305) is rotatably installed in the lap ring (2304), and the docking bolt (2305) is threadedly connected to the first connecting plate (2301) and the second connecting plate (2302).

10. A method for reinforcing a corrugated steel pipe suitable for a reinforced concrete pier column, using the corrugated steel pipe reinforcing device suitable for a reinforced concrete pier column according to claim 1, characterized in that: The steps include: S1: After the site preparation work is completed, two pieces of factory-prefabricated galvanized corrugated steel pipes (2) are fastened together, and the galvanized corrugated steel pipes (2) are spliced ​​to the two sides of the exterior of the existing concrete pier (1) through single-sided bolts (4) and mounting holes (3); S2: After the rubber strip (5) is sealed at the bottom, a low-shrinkage high-strength grouting material is poured into the gap between the existing concrete pier column (1) and the galvanized corrugated steel pipe (2) through the funnel (8), the first connecting pipe (6) and the second connecting pipe (7) to form the grouting material in one step.

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