Old building balcony reinforcing structure and construction device and using method thereof

Abstract

The application discloses an old building balcony reinforcing structure and a construction device and a use method thereof, and belongs to the technical field of building reinforcement. The old building balcony reinforcing structure comprises a high ductility concrete layer arranged on the outer side of the balcony rail plate inner wall body, a carbon fiber cloth is arranged on the outer side of the high ductility concrete layer, and a thermal insulation finish layer is arranged on the outer side of the carbon fiber cloth. The construction device of the old building balcony reinforcing structure comprises a shell, and further comprises a gluing mechanism arranged on both sides of the inside of the shell and used for bonding the carbon fiber cloth on the high ductility concrete layer. The application is different from the traditional steel structure external reinforcing form, the balcony rail plate is reinforced in an invisible manner, the basic maintenance safety function of the balcony rail plate can be ensured, the service life of the building is prolonged, the building is more livable, and certain economic benefits and social benefits are achieved.

Description

Technical Field

[0001] This invention relates to the field of building reinforcement technology, and in particular to a reinforcement structure and construction device for balconies of old buildings and its usage method. Background Technology

[0002] Currently, in urban construction, some older residential buildings are severely damaged, with peeling exterior finishes, cracked and loose concrete, and corroded steel bars, posing significant safety hazards. Urban construction needs to research key technologies to improve the safety and livability of older buildings. The balconies are the most problematic component in older buildings; severely damaged balconies not only pose high safety risks but also lose their basic function as balcony railings. Therefore, research should focus on reinforcing and repairing balcony railings.

[0003] Traditional balcony railing repair and reinforcement typically utilizes external steel structure reinforcement, which is not only costly but also aesthetically unappealing. Carbon fiber reinforcement is a novel method for concrete strengthening, applied to the reinforcement of beams, columns, and panels in concrete structures, bridges, and buildings. The principle involves cutting high-tensile-strength carbon fiber fabric to the required dimensions, bonding it to the structure along the reinforcement direction with adhesive, and smoothing it with a scraper to remove air bubbles. This forms a new composite, enhancing the shared load-bearing capacity of the carbon fiber fabric and the original reinforced concrete, increasing the structure's tensile or shear resistance, and improving the overall strength, stiffness, and tensile strength. However, the current method of laying carbon fiber fabric is relatively cumbersome, relying on manual application, which is inefficient. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art, and to propose a reinforcement structure and construction device for balconies of old buildings and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A reinforcement structure for balconies in old buildings includes a high-ductility concrete layer installed on the outer side of the inner wall of the balcony railing, a carbon fiber cloth laid on the outer side of the high-ductility concrete layer, and a thermal insulation finishing layer installed on the outer side of the carbon fiber cloth.

[0006] A construction device for reinforcing the balcony structure of an old building includes an outer shell and also includes: The adhesive application mechanism is provided in two sets, which are respectively located on both sides of the inner side of the outer shell, for bonding carbon fiber cloth to the high ductility concrete layer. A rotating rod is rotatably connected inside the housing, and a take-up roller for winding carbon fiber cloth is provided on the rotating rod; A conveying section, which is located on the lower side of the housing, is used to assist in conveying carbon fiber cloth; A connecting plate is fixed between the two adhesive coating mechanisms, and a cutting and extrusion assembly for cutting and extruding carbon fiber cloth is fixed on the connecting plate.

[0007] Preferably, the glue application mechanism includes a glue storage tank fixed to the inner wall of the outer shell, a discharge port is provided at the bottom of the glue storage tank, a discharge pipe is connected to the bottom of the discharge port, a movable pipe is slidably connected to the bottom of the discharge pipe, and a brush is fixed to the bottom side of the movable pipe.

[0008] Preferably, the adhesive application mechanism further includes an elastic telescopic plate fixed to the outside of the movable tube. The top of the elastic telescopic plate is fixedly connected to the bottom of the adhesive storage tank. A rotating shaft is rotatably provided at the bottom of the elastic telescopic plate. A rolling wheel is provided on the rotating shaft. The rolling wheel moves against the bottom of the movable tube. A feeding channel is formed between the side of the movable tube near the brush and the rolling wheel. A blocking block for sealing the feeding port is connected inside the movable tube by a connecting rod.

[0009] Preferably, the end of the elastic telescopic plate that moves relative to the outer shell is the moving end, and the two ends of the connecting plate are respectively connected to the moving ends of the elastic telescopic plates of the two adhesive application mechanisms.

[0010] Preferably, the cutting and extrusion assembly includes a cutter and an extrusion plate. The cutter is fixed to the lower side of the connecting plate. A telescopic rod is provided between the extrusion plate and the connecting plate. A driven gear is rotatably connected to the housing via a rotating shaft. The cutter is provided with a first rack that meshes with the driven gear. The extrusion plate is provided with a second rack that meshes with the driven gear.

[0011] Preferably, the conveying section includes a first rotating rod and a second rotating rod rotatably connected inside the housing. The first rotating rod and the second rotating rod are provided with mutually meshing movable gears. Both the first rotating rod and the second rotating rod are provided with conveying rollers for conveying carbon fiber cloth. The housing is also provided with a guide plate inclined towards the cutting and extrusion assembly on the lower side of the conveying section. The first rotating rod is provided with a one-way gear, which adopts a flywheel structure. The lower side of the connecting plate is provided with a rack plate that meshes with the one-way gear.

[0012] Preferably, a drum is provided on the rotating shaft, a pull rope is wound and connected to the drum, the end of the pull rope away from the drum passes through the outer shell and is connected to a glue-dispensing tube, a stopper is provided at the top of the glue-dispensing tube, and a pusher plate is connected at the bottom of the glue-dispensing tube through the glue-storage tank, the pusher plate is slidably connected inside the glue-storage tank.

[0013] Preferably, the top of the connecting plate is provided with a movable rod, and the end of the movable rod away from the connecting plate is provided with an elastic telescopic insertion rod. The rotating rod has positioning holes evenly distributed around its circumference, and the elastic telescopic insertion rod is movably inserted into the positioning holes.

[0014] A method for using a construction device for reinforcing the balcony structure of an old building includes the following steps: S1: Grind the high-ductility concrete repaired after the outer base layer of the balcony railing is removed; S2: Then place the outer shell at one end of the high-ductility concrete layer to be laid with carbon fiber cloth. After the rolling wheel comes into contact with the surface of the high-ductility concrete layer, apply force to the outer shell to compress the elastic telescopic plate and drive the connecting plate to move. When the elastic telescopic plate moves, it drives the movable tube to move, which in turn drives the block to move through the connecting rod. The block no longer blocks the discharge port, and the glue in the glue storage tank passes through the discharge tube and the movable tube and seeps into the brush. When the connecting plate moves, it drives the elastic telescopic rod to move through the movable rod. The elastic telescopic rod moves out of the positioning hole, so that the rotating rod is no longer restricted in rotation. When the connecting plate moves, it drives the cutter to move upward. When the cutter moves upward, the first rack meshes with the driven gear, and the driven gear meshes with the second rack, causing the extrusion plate to move downward. When the connecting plate moves, it drives the rack plate to mesh with the one-way gear. The one-way gear can drive the first rotating rod to rotate. The second rotating rod rotates in the opposite direction to the first rotating rod under the meshing transmission of the two moving gears. The conveying rollers on the first and second rotating rods convey the carbon fiber cloth downward. The carbon fiber cloth being conveyed moves towards the lower side of the cutter and extrusion plate under the guidance of the guide plate. During the downward movement of the extrusion plate, it abuts against the carbon fiber cloth on the lower side. S3: Then the staff drove the shell to move along the direction of the carbon fiber cloth to be laid in the high ductility concrete layer, and the primer of the adhesive coating mechanism on the front of the shell was applied to the surface of the high ductility concrete layer. As the outer shell moves, the carbon fiber cloth on the underside of the extruded plate comes into contact with the adhesive on the surface of the high-ductility concrete layer, and the carbon fiber cloth is bonded to the surface of the high-ductility concrete layer by the adhesive. As the outer shell moves, the carbon fiber cloth wound on the take-up roller is automatically released and laid on the path of the outer shell moving along the high-ductility concrete layer, since one end of the carbon fiber cloth is bonded and fixed. As the outer shell moves, the extrusion plate squeezes the carbon fiber cloth bonded to the high-ductility concrete layer, squeezing out the air or excess glue between the carbon fiber cloth and the high-ductility concrete layer. As the outer casing moves, the adhesive from the coating mechanism on the rear of the casing is applied to the laid carbon fiber cloth. S4: After the carbon fiber cloth is laid in one stage of the high ductility concrete layer, the staff removes the force applied to the shell, the elastic telescopic plate is reset, and the movable tube drives the block to seal the feed port through the connecting rod. After the cutter is reset, the used carbon fiber cloth is cut. The movable rod then drives the elastic telescopic insert to be re-inserted into the rotating rod, limiting the rotating rod so that the carbon fiber cloth wound on the winding roller will not be arbitrarily wound or released when not in use. S5: Repeat steps S2-S4 to lay carbon fiber cloth on the surface of the high-ductility concrete layer in other locations.

[0015] Compared with the prior art, the present invention provides a reinforcement structure and construction device for balconies of old buildings and its usage method, which has the following beneficial effects: 1. The reinforcement structure, construction device, and usage method of the balcony of this old building: By using carbon fiber cloth in combination with high ductility concrete to reinforce the balcony railing, unlike the traditional external reinforcement of steel structures, it reinforces the balcony railing invisibly. This not only ensures the basic maintenance and safety function of the balcony railing and extends the service life of the building, but also makes the building more livable, and has certain economic and social benefits.

[0016] 2. The old building balcony reinforcement structure and construction device and its usage method integrate the application of high ductility concrete adhesive, carbon fiber cloth laying and carbon fiber cloth cutting into one, which meets the needs of balcony railing reinforcement work, reduces the impact of manual pasting errors and improves the work efficiency of balcony processing and construction.

[0017] 3. The old building balcony reinforcement structure and construction device and its usage method, when the connecting plate moves, it drives the rack plate to mesh with the one-way gear. The one-way gear can drive the first rotating rod to rotate. The second rotating rod rotates in the opposite direction to the first rotating rod under the meshing transmission of the two movable gears. The conveying rollers on the first and second rotating rods convey the carbon fiber cloth downward. Under the guidance of the guide plate, the carbon fiber cloth moves towards the lower side of the cutter and extrusion plate. During the downward movement of the extrusion plate, it abuts against the carbon fiber cloth on the lower side, which facilitates the smooth progress of the subsequent carbon fiber cloth laying work.

[0018] 4. The reinforcement structure and construction device for the old building's balcony and its usage method: After the carbon fiber cloth is laid in one stage of the high-ductility concrete layer, the staff removes the force applied to the shell, the elastic telescopic plate is reset, and the movable rod drives the elastic telescopic plug to be re-inserted into the rotating rod, limiting the rotating rod so that the carbon fiber cloth wound on the winding roller will not be arbitrarily wound or released when not in use.

[0019] 5. The reinforcement structure and construction device for the old building's balcony, and its usage method, involve the rotating rollers rotating during the movement of the outer shell and contacting the high-ductility concrete layer. This rotation causes the rotating shaft to drive the drum to wind up the pull rope, which in turn applies tension to the glue-dispensing pipe. The force on the glue-dispensing pipe causes the pusher plate to slide down inside the glue storage tank, pushing the glue in the storage tank downwards and discharging it. This prevents the glue from not being fully discharged due to poor fluidity, ensuring the bonding effect of the carbon fiber cloth. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 1 ; Figure 3 For the present invention Figure 2 A partially enlarged structural diagram of section A in the middle; Figure 4 This is a schematic cross-sectional view of the present invention. Figure 2 ; Figure 5 For the present invention Figure 4 A partially enlarged structural diagram of section B in the middle; Figure 6 This is a schematic diagram of a portion of the internal structure of the outer casing of the present invention; Figure 7 For the present invention Figure 6 A partially enlarged structural diagram of section C in the middle; Figure 8 This is a schematic diagram of the external structure of the rotating rod of the present invention; Figure 9 This is a schematic diagram of the conveying section of the present invention; Figure 10 This is a cross-sectional structural diagram of the glue storage tank of the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the balcony railing of the present invention.

[0021] In the diagram: 1. Wall; 2. High-ductility concrete layer; 3. Carbon fiber cloth; 4. Thermal insulation finish layer; 5. Outer shell; 6. Adhesive application mechanism; 7. Rotating rod; 701. Rewinding roller; 702. Positioning hole; 8. Conveying section; 9. Connecting plate; 10. Adhesive storage tank; 1001. Discharge port; 1002. Discharge pipe; 1003. Movable pipe; 1004. Brush; 1005. Block; 11. Elastic telescopic plate; 111. Rotating shaft; 112. Rolling wheel; 12. 13. Feeding channel; 14. Cutter; 15. First rack; 16. Extrusion plate; 17. Telescopic rod; 18. Second rack; 19. Driven gear; 10. First rotating rod; 10. Movable gear; 11. Conveyor roller; 12. Second rotating rod; 13. Guide plate; 14. One-way gear; 15. Rack plate; 26. Movable rod; 27. Elastic telescopic insert rod; 28. Drum; 29. ​​Pull rope; 20. Glue dispensing tube; 21. Push plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Example 1: Refer to Figure 11 A reinforcement structure for balconies of old buildings includes a high-ductility concrete layer 2 set on the outside of the inner wall 1 of the balcony railing, a carbon fiber cloth 3 laid on the outside of the high-ductility concrete layer 2, and an insulation finishing layer 4 set on the outside of the carbon fiber cloth 3.

[0025] Specifically, the reinforcement process is as follows: 1. The outer base layer of the balcony railing wall 1 is removed and repaired with high-ductility concrete to form a high-ductility concrete layer 2; 2. Carbon fiber cloth 3 is used to reinforce the balcony railing again, fixing it to the main building structure with invisible ropes; 3. After the above two reinforcement steps are completed, the balcony railing and surrounding exterior walls are simultaneously treated with thermal insulation finish. This construction technology differs from traditional external steel structure reinforcement methods. It reinforces the balcony railing invisibly, not only ensuring the basic maintenance and safety functions of the balcony railing and extending the building's service life, but also making the building more livable, thus possessing certain economic and social benefits.

[0026] Example 2: Refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 A construction device for reinforcing the balcony structure of an old building, including a shell 5, and further comprising: The adhesive application mechanism 6 is provided in two sets and is respectively located on both sides of the inside of the outer shell 5, for bonding the carbon fiber cloth 3 to the high ductility concrete layer 2. Rotating rod 7 is rotatably connected inside housing 5, and a take-up roller 701 for winding carbon fiber cloth 3 is provided on rotating rod 7; Conveying section 8, which is located on the lower side of housing 5, is used to assist in conveying carbon fiber cloth 3; A connecting plate 9 is fixed between the two adhesive application mechanisms 6, and a cutting and extrusion assembly for cutting and extruding carbon fiber cloth 3 is fixed on the connecting plate 9.

[0027] Specifically, the outer shell 5 is placed at one end of the high-ductility concrete layer 2 where the carbon fiber cloth 3 is to be laid. Then, the outer shell 5 is moved along the high-ductility concrete layer 2. The adhesive applicator 6 on the front side of the outer shell 5 applies primer adhesive to the surface of the high-ductility concrete layer 2. The take-up roller 701 releases the carbon fiber cloth 3 as the outer shell 5 moves along the high-ductility concrete layer 2, so that the carbon fiber cloth 3 is laid on the primer adhesive on the surface of the high-ductility concrete layer 2. The top adhesive of the adhesive applicator 6 on the rear side of the outer shell 5 is applied to the laid carbon fiber cloth 3. The cutting and extruding component extrudes the air or excess adhesive between the carbon fiber cloth 3 and the high-ductility concrete layer 2, and automatically cuts the carbon fiber cloth 3 after it is laid. This application integrates the application of adhesive to the high-ductility concrete, the laying of the carbon fiber cloth 3, and the cutting of the carbon fiber cloth 3 into one unit, which meets the needs of balcony railing reinforcement work, reduces the impact of manual pasting errors, and improves the work efficiency of balcony processing and construction.

[0028] Example 3: Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 10 A construction device for reinforcing the balcony structure of an old building, based on embodiment 2, further includes an adhesive application mechanism 6 comprising an adhesive storage tank 10 fixed to the inner wall of the outer shell 5, a discharge port 1001 at the bottom of the adhesive storage tank 10, a discharge pipe 1002 connected to the bottom of the discharge port 1001, a movable pipe 1003 slidably connected to the bottom of the discharge pipe 1002, and a brush 1004 fixed to the bottom side of the movable pipe 1003.

[0029] Furthermore, the glue application mechanism 6 also includes an elastic telescopic plate 11 fixed to the outside of the movable tube 1003. The top of the elastic telescopic plate 11 is fixedly connected to the bottom of the glue storage tank 10. A rotating shaft 111 is rotatably provided at the bottom of the elastic telescopic plate 11. A rolling wheel 112 is provided on the rotating shaft 111. The rolling wheel 112 moves against the bottom of the movable tube 1003. A feeding channel 12 is formed between the side of the movable tube 1003 near the brush 1004 and the rolling wheel 112. A blocking block 1005 for blocking the feeding port 1001 is connected inside the movable tube 1003 by a connecting rod.

[0030] Furthermore, the end of the elastic telescopic plate 11 that moves relative to the outer shell 5 is the moving end, and the two ends of the connecting plate 9 are respectively connected to the moving ends of the elastic telescopic plate 11 of the two glue-applying mechanisms 6.

[0031] Specifically, the outer shell 5 is placed at one end of the high-ductility concrete layer 2 where the carbon fiber cloth 3 is to be laid. After the rolling wheel 112 comes into contact with the surface of the high-ductility concrete layer 2, a force is applied to the outer shell 5, causing the elastic telescopic plate 11 to be compressed and drive the connecting plate 9 to move. When the elastic telescopic plate 11 moves, it drives the movable tube 1003 to move, and the movable tube 1003 drives the block 1005 to move through the connecting rod. The block 1005 no longer blocks the discharge port 1001. The glue in the glue storage tank 10 passes through the discharge tube 1002 and the movable tube 1003 and penetrates into the brush 1004. Then, the worker drives the outer shell 5 to move along the direction where the carbon fiber cloth 3 is to be laid in the high-ductility concrete layer 2. The glue application mechanism 6 applies the glue to the surface of the high-ductility concrete layer 2 or the surface of the carbon fiber cloth 3 through the brush 1004.

[0032] Example 4: Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 A construction device for reinforcing the balcony structure of an old building, based on embodiment 3, further includes a cutting and extrusion assembly comprising a cutter 13 and an extrusion plate 14. The cutter 13 is fixedly mounted on the lower side of the connecting plate 9. A telescopic rod 141 is provided between the extrusion plate 14 and the connecting plate 9. A driven gear 15 is rotatably connected to the outer casing 5 via a rotating shaft. A first rack 131 is provided on the cutter 13 and meshes with the driven gear 15. A second rack 142 is provided on the extrusion plate 14 and meshes with the driven gear 15.

[0033] Specifically, the outer shell 5 is placed at one end of the high-ductility concrete layer 2 where the carbon fiber cloth 3 is to be laid. After the rolling wheel 112 comes into contact with the surface of the high-ductility concrete layer 2, a force is applied to the outer shell 5, causing the elastic telescopic plate 11 to be compressed and drive the connecting plate 9 to move. When the connecting plate 9 moves, it drives the cutter 13 to move upward. When the cutter 13 moves upward, the first rack 131 meshes with the driven gear 15, and the driven gear 15 meshes with the second rack 142, causing the extrusion plate 14 to move downward. After the carbon fiber cloth 3 of one stage of the high-ductility concrete layer 2 is laid, the staff removes the force applied to the outer shell 5, the elastic telescopic plate 11 is reset, and after the cutter 13 is reset, the laid carbon fiber cloth 3 is cut.

[0034] Example 5: Refer to Figure 3 , Figure 5 , Figure 6 and Figure 9 A construction device for reinforcing the balcony structure of an old building, based on embodiment 4, further includes a conveying section 8 comprising a first rotating rod 16 and a second rotating rod 17 rotatably connected within the outer casing 5. The first rotating rod 16 and the second rotating rod 17 are provided with mutually meshing movable gears 161. Both the first rotating rod 16 and the second rotating rod 17 are provided with conveying rollers 162 for conveying carbon fiber cloth 3. The outer casing 5 is also inclinedly provided with a guide plate 18 facing the cutting and extrusion assembly on the lower side of the conveying section 8. The first rotating rod 16 is provided with a one-way gear 19, which adopts a flywheel structure. The lower side of the connecting plate 9 is provided with a rack plate 191 that meshes with the one-way gear 19.

[0035] Specifically, the outer shell 5 is placed at one end of the high-ductility concrete layer 2 to be laid with carbon fiber cloth 3. After the rolling wheel 112 abuts against the surface of the high-ductility concrete layer 2, a force is applied to the outer shell 5, causing the elastic telescopic plate 11 to be compressed and drive the connecting plate 9 to move. When the connecting plate 9 moves, it drives the rack plate 191 to mesh with the one-way gear 19. The one-way gear 19 can drive the first rotating rod 16 to rotate. The second rotating rod 17 rotates in the opposite direction to the first rotating rod 16 under the meshing transmission of the two movable gears 161. The first rotating rod 16 and the second rotating rod 17 rotate in opposite directions. The conveying roller 162 on rod 17 conveys the carbon fiber cloth 3 downwards. Under the guidance of guide plate 18, the carbon fiber cloth 3 moves towards the lower side of cutter 13 and extrusion plate 14. During the downward movement, extrusion plate 14 abuts against the carbon fiber cloth 3 on the lower side. When elastic telescopic plate 11 is reset, the meshing transmission between rack plate 191 and one-way gear 19 does not drive conveying roller 162 to convey carbon fiber cloth 3 into housing 5. It should be noted that the flywheel structure of one-way gear 19 is prior art, and its specific structure and function will not be described in detail here.

[0036] Example 6: Refer to Figure 1 , Figure 3 , Figure 5 and Figure 10 A construction device for reinforcing the balcony structure of an old building, based on embodiment 5, further includes a drum 21 on the rotating shaft 111, a pull rope 211 wound around the drum 21, one end of the pull rope 211 away from the drum 21 passing through the outer shell 5 and connected to a glue-filling tube 22, a stopper cap on the top of the glue-filling tube 22, and the bottom of the glue-filling tube 22 passing through the glue storage box 10 and connected to a pusher plate 221, which is slidably connected inside the glue storage box 10.

[0037] Specifically, during the laying of carbon fiber cloth 3 on the high-ductility concrete layer 2, the roller 112 rotates during contact with the high-ductility concrete layer 2, causing the rotating shaft 111 to drive the drum 21 to wind up the pull rope 211, which in turn applies tension to the glue-filling tube 22. The glue-filling tube 22, under this force, causes the pusher plate 221 to slide down inside the glue storage tank 10, pushing the glue in the storage tank 10 downwards and discharging it. This prevents the glue from not being fully discharged due to its poor fluidity, ensuring the bonding effect of the carbon fiber cloth 3. It should be noted that when laying the carbon fiber cloth 3, the plug of the glue-filling tube 22 should be closed to reduce the glue solidification speed and prevent the glue in the storage tank 10 from flowing out of the glue-filling tube 22 when the pusher plate 221 moves down.

[0038] Example 7: Refer to Figure 1 , Figure 3 , Figure 5 and Figure 10 A construction device for reinforcing the balcony structure of an old building, based on embodiment 6, further includes a movable rod 20 on the top of the connecting plate 9, an elastic telescopic insertion rod 2001 at the end of the movable rod 20 away from the connecting plate 9, and a positioning hole 702 evenly distributed around the circumference on the rotating rod 7, with the elastic telescopic insertion rod 2001 movably inserted into the positioning hole 702.

[0039] Specifically, the outer shell 5 is placed at one end of the high-ductility concrete layer 2 where the carbon fiber cloth 3 is to be laid. After the rolling wheel 112 comes into contact with the surface of the high-ductility concrete layer 2, a force is applied to the outer shell 5, causing the elastic telescopic plate 11 to be compressed and drive the connecting plate 9 to move. When the connecting plate 9 moves, it drives the elastic telescopic insertion rod 2001 to move through the movable rod 20. The elastic telescopic insertion rod 2001 moves out of the positioning hole 702, so that the rotating rod 7 is no longer restricted in rotation. After the carbon fiber cloth 3 of one stage of the high-ductility concrete layer 2 is laid, the staff removes the force applied to the outer shell 5, the elastic telescopic plate 11 is reset, and the movable rod 20 drives the elastic telescopic insertion rod 2001 to be re-inserted into the rotating rod 7, limiting the rotation of the rotating rod 7, so that the carbon fiber cloth 3 wound on the winding roller 701 will not be arbitrarily wound or released when not in use.

[0040] This invention also discloses a method for using a construction device for reinforcing the structure of balconies in old buildings, comprising the following steps: S1: Grind the high-ductility concrete repaired after the outer base layer of the balcony railing is removed; S2: Then place the outer shell 5 at one end of the high ductility concrete layer 2 on which the carbon fiber cloth 3 is to be laid. After the rolling wheel 112 comes into contact with the surface of the high ductility concrete layer 2, apply a force to the outer shell 5 to compress the elastic telescopic plate 11 and drive the connecting plate 9 to move. When the elastic telescopic plate 11 moves, it drives the movable tube 1003 to move, so that the movable tube 1003 drives the block 1005 to move through the connecting rod. The block 1005 no longer blocks the discharge port 1001, and the glue in the glue storage box 10 passes through the discharge tube 1002 and the movable tube 1003 and seeps into the brush 1004. When the connecting plate 9 moves, it drives the elastic telescopic rod 2001 to move through the movable rod 20. The elastic telescopic rod 2001 moves out of the positioning hole 702, so that the rotating rod 7 is no longer restricted in rotation. When the connecting plate 9 moves, it drives the cutter 13 to move upward. When the cutter 13 moves upward, the first rack 131 meshes with the driven gear 15 for transmission, and the driven gear 15 meshes with the second rack 142 for transmission, causing the extrusion plate 14 to move downward. When the connecting plate 9 moves, it drives the rack plate 191 to mesh with the one-way gear 19. The one-way gear 19 can drive the first rotating rod 16 to rotate. The second rotating rod 17 rotates in the opposite direction to the first rotating rod 16 under the meshing transmission of the two movable gears 161. The conveying rollers 162 on the first rotating rod 16 and the second rotating rod 17 convey the carbon fiber cloth 3 downward. The carbon fiber cloth 3 being conveyed moves towards the lower side of the cutter 13 and the extrusion plate 14 under the guidance of the guide plate 18. During the downward movement of the extrusion plate 14, it abuts against the carbon fiber cloth 3 on the lower side. S3: Then the staff drove the outer shell 5 to move along the direction of the high ductility concrete layer 2 where the carbon fiber cloth 3 is to be laid, and the primer of the adhesive coating mechanism 6 on the front side of the outer shell 5 was applied to the surface of the high ductility concrete layer 2. As the outer shell 5 moves, the carbon fiber cloth 3 on the underside of the extrusion plate 14 comes into contact with the adhesive on the surface of the high ductility concrete layer 2, and the carbon fiber cloth 3 is bonded to the surface of the high ductility concrete layer 2 by the adhesive. As the outer casing 5 moves, the carbon fiber cloth 3 wrapped on the take-up roller 701 is automatically released and laid on the path of the outer casing 5 moving along the high ductility concrete layer 2, since one end of the carbon fiber cloth 3 is bonded and fixed. As the outer shell 5 moves, the extrusion plate 14 extrudes the carbon fiber cloth 3 bonded to the high ductility concrete layer 2, causing the air or excess glue between the carbon fiber cloth 3 and the high ductility concrete layer 2 to be expelled. As the outer casing 5 moves, the adhesive on the surface of the adhesive application mechanism 6 on the rear side of the outer casing 5 is applied onto the laid carbon fiber cloth 3. S4: After the carbon fiber cloth 3 is laid in one stage of the high ductility concrete layer 2, the staff removes the force applied to the outer shell 5, the elastic telescopic plate 11 is reset, and the movable tube 1003 drives the block 1005 to block the discharge port 1001 through the connecting rod. After the cutter 13 is reset, it cuts the carbon fiber cloth 3 that has been used. The movable rod 20 drives the elastic telescopic insert 2001 to be re-inserted into the rotating rod 7 to limit the rotating rod 7, so that the carbon fiber cloth 3 wrapped on the winding roller 701 will not be arbitrarily wound or released when not in use. S5: Repeat steps S2-S4 to lay carbon fiber cloth 3 on the surface of the high ductility concrete layer 2 in other locations.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A reinforcement structure for balconies in old buildings, characterized in that, It includes a high-ductility concrete layer (2) set on the outside of the inner wall (1) of the balcony railing, a carbon fiber cloth (3) laid on the outside of the high-ductility concrete layer (2), and a thermal insulation finishing layer (4) set on the outside of the carbon fiber cloth (3).

2. The construction device for reinforcing the balcony structure of an old building according to claim 1, comprising a shell (5), characterized in that, Also includes: The adhesive application mechanism (6) is provided in two sets and is respectively located on both sides of the inner side of the outer shell (5) for bonding carbon fiber cloth (3) to the high ductility concrete layer (2); Rotating rod (7), which is rotatably connected inside the outer shell (5), and a take-up roller (701) for winding carbon fiber cloth (3) is provided on the rotating rod (7). The conveying section (8) is disposed on the lower side of the outer casing (5) and is used to assist in conveying the carbon fiber cloth (3). A connecting plate (9) is fixed between the two adhesive coating mechanisms (6), and a cutting and extrusion assembly for cutting and extruding carbon fiber cloth (3) is fixed on the connecting plate (9).

3. The construction device for reinforcing the balcony structure of an old building according to claim 2, characterized in that, The glue application mechanism (6) includes a glue storage tank (10) fixed to the inner wall of the outer shell (5). The bottom of the glue storage tank (10) is provided with a discharge port (1001). The bottom of the discharge port (1001) is connected to a discharge pipe (1002). The bottom of the discharge pipe (1002) is slidably connected to a movable pipe (1003). A brush (1004) is fixed on the bottom side of the movable pipe (1003).

4. The construction device for reinforcing the balcony structure of an old building according to claim 3, characterized in that, The glue application mechanism (6) also includes an elastic telescopic plate (11) fixed to the outside of the movable tube (1003). The top of the elastic telescopic plate (11) is fixed to the bottom of the glue storage tank (10). A rotating shaft (111) is rotatably provided at the bottom of the elastic telescopic plate (11). A rolling wheel (112) is provided on the rotating shaft (111). The rolling wheel (112) moves against the bottom of the movable tube (1003). A feeding channel (12) is formed between the side of the movable tube (1003) near the brush (1004) and the rolling wheel (112). A blocking block (1005) for sealing the feeding port (1001) is connected inside the movable tube (1003) by a connecting rod.

5. The construction device for reinforcing the balcony structure of an old building according to claim 4, characterized in that, The end of the elastic telescopic plate (11) that moves relative to the outer shell (5) is the moving end, and the two ends of the connecting plate (9) are respectively connected to the moving ends of the elastic telescopic plate (11) of the two glue-applying mechanisms (6).

6. The construction device for reinforcing the balcony structure of an old building according to claim 5, characterized in that, The cutting and extrusion assembly includes a cutter (13) and an extrusion plate (14). The cutter (13) is fixed on the lower side of the connecting plate (9). A telescopic rod (141) is provided between the extrusion plate (14) and the connecting plate (9). A driven gear (15) is rotatably connected to the housing (5) via a rotating shaft. A first rack (131) that meshes with the driven gear (15) is provided on the cutter (13). A second rack (142) that meshes with the driven gear (15) is provided on the extrusion plate (14).

7. The construction device for reinforcing the balcony structure of an old building according to claim 6, characterized in that, The conveying section (8) includes a first rotating rod (16) and a second rotating rod (17) rotatably connected inside the housing (5). The first rotating rod (16) and the second rotating rod (17) are provided with mutually meshing movable gears (161). The first rotating rod (16) and the second rotating rod (17) are each provided with a conveying roller (162) for conveying carbon fiber cloth (3). The housing (5) is also provided with a guide plate (18) inclined towards the cutting and extrusion assembly on the lower side of the conveying section (8). The first rotating rod (16) is provided with a one-way gear (19). The one-way gear (19) adopts a flywheel structure. The lower side of the connecting plate (9) is provided with a rack plate (191) that meshes with the one-way gear (19).

8. The construction device for reinforcing the balcony structure of an old building according to claim 7, characterized in that, A drum (21) is provided on the rotating shaft (111), and a pull rope (211) is wound and connected on the drum (21). The end of the pull rope (211) away from the drum (21) passes through the outer shell (5) and is connected to a glue-filling tube (22). A stopper is provided on the top of the glue-filling tube (22), and the bottom of the glue-filling tube (22) passes through the glue storage box (10) and is connected to a pusher plate (221). The pusher plate (221) is slidably connected inside the glue storage box (10).

9. A construction device for reinforcing the balcony structure of an old building according to claim 8, characterized in that, The top of the connecting plate (9) is provided with a movable rod (20), and the end of the movable rod (20) away from the connecting plate (9) is provided with an elastic telescopic insertion rod (2001). The rotating rod (7) is provided with positioning holes (702) evenly distributed in a circle, and the elastic telescopic insertion rod (2001) is movably inserted into the positioning hole (702).

10. The method of using the construction device for reinforcing the balcony structure of an old building according to claim 9, characterized in that, Includes the following steps: S1: Grind the high-ductility concrete repaired after the outer base layer of the balcony railing is removed; S2: Then place the outer shell (5) at one end of the high ductility concrete layer (2) to be laid with carbon fiber cloth (3). After the rolling wheel (112) comes into contact with the surface of the high ductility concrete layer (2), apply force to the outer shell (5) to compress the elastic telescopic plate (11) and drive the connecting plate (9) to move. When the elastic telescopic plate (11) moves, it drives the movable tube (1003) to move, so that the movable tube (1003) drives the block (1005) to move through the connecting rod. The block (1005) no longer blocks the discharge port (1001), and the glue in the glue storage tank (10) passes through the discharge tube (1002) and the movable tube (1003) and penetrates into the brush (1004). When the connecting plate (9) moves, it drives the elastic telescopic rod (2001) to move through the movable rod (20). The elastic telescopic rod (2001) moves out of the positioning hole (702), so that the rotating rod (7) is no longer restricted from rotation. When the connecting plate (9) moves, it drives the cutter (13) to move upward. When the cutter (13) moves upward, the first rack (131) meshes with the driven gear (15) for transmission, and the driven gear (15) meshes with the second rack (142) for transmission, causing the extrusion plate (14) to move downward. When the connecting plate (9) moves, it drives the rack plate (191) to mesh with the one-way gear (19). The one-way gear (19) can drive the first rotating rod (16) to rotate. The second rotating rod (17) rotates in the opposite direction to the first rotating rod (16) under the meshing transmission of the two movable gears (161). The conveying rollers (162) on the first rotating rod (16) and the second rotating rod (17) convey the carbon fiber cloth (3) downward. The carbon fiber cloth (3) being conveyed moves towards the lower side of the cutter (13) and the extrusion plate (14) under the guidance of the guide plate (18). During the downward movement of the extrusion plate (14), it abuts against the carbon fiber cloth (3) on the lower side. S3: Subsequently, the staff drove the outer shell (5) to move along the direction of the high ductility concrete layer (2) where the carbon fiber cloth (3) was to be laid, and the base adhesive of the adhesive coating mechanism (6) on the front side of the outer shell (5) was applied to the surface of the high ductility concrete layer (2). As the outer shell (5) moves, the carbon fiber cloth (3) on the underside of the extrusion plate (14) comes into contact with the glue on the surface of the high ductility concrete layer (2), and the carbon fiber cloth (3) is bonded to the surface of the high ductility concrete layer (2) by the glue. As the outer shell (5) moves, the carbon fiber cloth (3) wrapped on the take-up roller (701) is automatically released and laid on the path of the outer shell (5) along the high ductility concrete layer (2) because one end of the carbon fiber cloth (3) is bonded and fixed. As the outer shell (5) moves, the extrusion plate (14) extrudes the carbon fiber cloth (3) bonded to the high ductility concrete layer (2), causing the air or excess glue between the carbon fiber cloth (3) and the high ductility concrete layer (2) to be expelled. As the outer shell (5) moves, the adhesive on the surface of the adhesive coating mechanism (6) on the rear side of the outer shell (5) is applied onto the laid carbon fiber cloth (3); S4: After the carbon fiber cloth (3) in the high ductility concrete layer (2) is laid, the staff removes the force applied to the shell (5), the elastic telescopic plate (11) is reset, and the movable tube (1003) drives the block (1005) to block the discharge port (1001) through the connecting rod. After the cutter (13) is reset, it cuts the carbon fiber cloth (3) that has been used. The movable rod (20) then drives the elastic telescopic insert (2001) to be re-inserted into the rotating rod (7) to limit the rotating rod (7) so that the carbon fiber cloth (3) wrapped on the winding roller (701) will not be arbitrarily wound or released when not in use. S5: Repeat steps S2-S4 to lay carbon fiber cloth (3) on the surface of the high ductility concrete layer (2) at other locations.

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