A building outrigger side formwork reinforcement system

Abstract

This invention relates to the field of building construction technology, specifically to a building exterior beam side formwork reinforcement system. The system includes a precast top formwork for the exterior beam, installed on one side of the building structure. An overlapping frame is fixed to the surface of the precast top formwork, overlapping the top of the building structure. The beneficial effects are: the building exterior beam side formwork reinforcement system proposed in this invention integrates the support formwork and the reinforcement system. Specifically, after the optimized design of the precast top formwork, precast bottom formwork, and precast side formwork for the exterior beam is assembled, it constitutes the support structure of the exterior beam, i.e., the casting formwork. Furthermore, the connection structure between the precast top formwork, precast bottom formwork, and precast side formwork acts as the reinforcement system. That is, the support formwork itself fulfills the reinforcement function. During the assembly of the formwork, reinforcement is simultaneously achieved, which is beneficial for improving on-site construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a side formwork reinforcement system for external beams of buildings. Background Technology

[0002] A cantilever beam refers to the horizontal beam structure of a bay window. Bay windows are typically installed on buildings with a frame shear wall structure. Generally, a bay window extends out from the shear wall. If there is a beam, it is called a cantilever beam; if there is no beam, the windowsill and the top of the window are cantilever structures.

[0003] In existing technology, cantilever beams are set on the main beam and extend outward from the main beam. During pouring, especially when the cantilever beam is located outside the main beam, it is inconvenient to fix and support it. During pouring, the cantilever beam is prone to bulging and deviation. The Chinese invention patent application number CN202010458861.X proposes a "novel building cantilever beam side formwork reinforcement system", which includes a main beam component, a bottom aluminum formwork on the outer side of the main beam, a top aluminum formwork on the outer side of the main beam, a bottom inner aluminum formwork, a cantilever beam component, a bottom aluminum formwork on the cantilever beam, a transition aluminum formwork on the cantilever beam, an outer aluminum formwork on the cantilever beam, an inner aluminum formwork on the cantilever beam, a clamping aluminum formwork on the cantilever beam, a reinforcement plate, an adjustment channel, and a fixing plate. The design incorporates components such as a positioning plate, adjusting screw, retaining assembly, horizontal plate, slide rail, extension channel, receiving groove, docking plate, sliding block, locking block, connecting rod, adjusting shaft, guide channel, clamping plate, contact plate, fixing assembly, plug-in rod, tensioning rod, extrusion hole, support plate, fastening collar, connecting assembly, support assembly, upright, rotating ring, tie rod, plug-in pipe, sleeve, extension groove, limiting plate, support rod, bottom clamping plate, and top clamping plate. This design reinforces and adjusts the side formwork of the cantilever beam, ensuring a secure and reliable connection of the entire cantilever beam formwork. This effectively reduces the deformation during casting of the cantilever beam, minimizes the occurrence of external bulging, ensures the cantilever beam remains vertical to the main beam, prevents the cantilever beam from moving relative to the main beam, and improves the casting quality and effect of the cantilever beam.

[0004] However, the reinforcement system in the above scheme is set up independently outside the support formwork. That is, the support formwork needs to be installed first, and then the reinforcement system for the support formwork needs to be installed. This is not conducive to improving the efficiency of on-site construction. Summary of the Invention

[0005] The purpose of this invention is to provide a side formwork reinforcement system for building exterior beams to solve the problems mentioned in the background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A side formwork reinforcement system for a building's cantilever beam, including a precast top formwork for the cantilever beam, which is installed on one side of the building main body. A lapping frame is fixed on the surface of the precast top formwork for the cantilever beam. The lapping frame laps over the building main body. A limiting frame is fixed on the surface of the lapping frame. A hoisting plate is movably inserted at the bottom of the limiting frame. The hoisting plate is fixed on the surface of the precast bottom formwork for the cantilever beam. A lapping block is inserted at the top end of the hoisting plate. The lapping block laps on the top surface of the lapping frame. An insertion plate is movably inserted on the surface of the hoisting plate. The insertion plate is fixed on the surface of the precast side formwork for the cantilever beam. A connecting plate is fixed on the surface of the precast side formwork for the cantilever beam. The connecting plate is inserted on the surface of the reinforcement tension plate. Two limiting plates are fixed on the surface of the reinforcement tension plate. The two limiting plates are symmetrically distributed with respect to the top plate of the lapping frame. And the reinforcement tension plate laps on the top surface of the lapping frame. An extension plate is fixed on the surface of the lapping frame. A turntable is rotatably connected on the surface of the extension plate. A plurality of clamping blocks are movably inserted on the surface of the extension plate. A notch is provided on the surface of the turntable. A push handle is fixed on the surface of the clamping block. The push handles and the notch correspond to each other one by one.

[0007] Preferably, the precast top formwork for the cantilever beam has an "L"-shaped plate structure. The lapping frame has an inverted "J"-shaped plate structure. The height of the lapping frame is equal to the height of the precast top formwork for the cantilever beam. The limiting frame has a "C"-shaped plate structure. There are two limiting frames, and the two limiting frames are symmetrically distributed with respect to the lapping frame. The hoisting plate and the limiting frame correspond to each other one by one.

[0008] Preferably, the precast bottom formwork for the cantilever beam has a "Z"-shaped plate structure. The adjacent two plate bodies of the precast bottom formwork for the cantilever beam are perpendicular. An insertion opening is provided on the surface of the hoisting plate. The lapping block is movably inserted into the insertion opening. A traction piece is fixed at one end of the lapping block. An elastic metal sheet is fixed on the surface of the traction piece. A clamping strip is fixed on the bottom surface of the elastic metal sheet. The clamping strip is in the shape of a right trapezoidal strip. The clamping strip is inserted into a clamping groove. The clamping groove is opened on the top surface of the hoisting plate. A pull ring is fixed on the top surface of the elastic metal sheet. A stop strip is fixed on the surface of the hoisting plate. After the lapping block laps on the top surface of the lapping frame, the stop strip abuts against the bottom surface of the limiting frame.

[0009] Preferably, a reserved insertion slot is provided on the surface of the hoisting plate. The insertion plate is movably inserted into the reserved insertion slot. The precast side formwork for the cantilever beam has an "L"-shaped plate structure. There are two precast side formwork for the cantilever beam. The two precast side formwork for the cantilever beam are symmetrically distributed with respect to the precast top formwork for the cantilever beam. And the two precast side formwork for the cantilever beam respectively block the two sides of the groove between the precast top formwork for the cantilever beam and the precast bottom formwork for the cantilever beam. A support plate is fixed at the bottom end of the precast side formwork for the cantilever beam. The support plate has an "L"-shaped plate structure. The support plate supports the bottom of the precast bottom formwork for the cantilever beam. The connecting plate has a "convex"-shaped plate structure. A screw hole is provided on the surface of the connecting plate.

[0010] Preferably, after the prefabricated side formwork of the outer cantilever beam is installed, the top surface of the connecting plate is above the top surface of the prefabricated bottom formwork of the outer cantilever beam, the surface of the reinforcing tie plate is provided with an assembly port, the top of the connecting plate is inserted into the assembly port, one end of the reinforcing tie plate is screwed with a connecting screw rod, the connecting screw rod is inserted into the assembly port and then screwed into the screw hole, the other end of the reinforcing tie plate is inserted into two baffles and then overlaps the top surface of the overlapping frame, and the baffles are fixed to the top surface of the overlapping frame.

[0011] Preferably, the extension plate has a first mounting groove on the side facing away from the overlapping frame. The first mounting groove is circular. The extension plate has multiple storage grooves on the side facing the overlapping frame. The storage grooves are square. The surface of the storage grooves has through holes that connect the storage grooves and the first mounting grooves. The clamping block is a square plate that is movably inserted into the storage grooves. The thickness of the clamping block is less than the depth of the storage grooves. A spring and a rubber cover are fixed on the side of the clamping block facing the inside of the storage grooves. One end of the rubber cover and the spring is fixed to the surface of the storage grooves. The rubber cover is fitted over the outside of the spring. The spring is fitted over the outside of the push handle. The push handle is movably inserted into the through holes. The end of the push handle facing the first mounting groove is integrally formed with a spherical surface.

[0012] Preferably, the clamping block has a dividing groove on the side facing away from the storage groove. The dividing groove is in the shape of a cross. The clamping block also has multiple side grooves on the side facing away from the storage groove. The multiple side grooves are distributed at the corners of the dividing grooves and are connected to the dividing grooves. The depth of the side grooves is less than the depth of the dividing grooves. A rubber pad is fixed to the surface of the side groove. The thickness of the rubber pad is greater than the depth of the side groove. Multiple clamping protrusions are fixed to the surface of the dividing groove. The clamping protrusions have a frustum-shaped structure. The height of the clamping protrusions is greater than the straight-line distance from the side of the rubber pad facing away from the side groove to the surface of the dividing groove.

[0013] Preferably, the turntable has a circular plate-like structure. A limiting shaft is inserted into the inner ring of the turntable. The limiting shaft has a "T"-shaped cylindrical structure. One end of the limiting shaft has a diameter larger than the inner ring diameter of the turntable. The other end of the limiting shaft passes through the inner ring of the turntable and is fixed to the surface of the first mounting groove. The notch is a "U"-shaped groove. Multiple notches are arranged along the outer ring surface of the turntable. Multiple levers are fixed on the surface of the turntable facing away from the first mounting groove. The multiple levers are arranged around the inner ring of the turntable. When the turntable blocks one side of the push handle, the push handle pushes the clamping block to stretch the spring and rubber cover, causing elastic deformation. After the turntable is turned by the user, it rotates around the limiting shaft. When the notch and the push handle correspond, the spring and rubber cover rebound, and one end of the push handle is inserted into the notch. At this time, the clamping block retracts into the storage groove.

[0014] Preferably, a second installation groove is formed on the side wall of the first installation groove. There are multiple second installation grooves, and rubber clamping blocks are fixed on the surface of the second installation grooves. After the rubber clamping blocks protrude from the second installation grooves, they are inserted into the notch grooves. Ear plates are fixed on both sides of the extension plate, and reserved holes are formed on the surface of the ear plates for bolts to pass through to connect the ear plates and the building main body. A connecting frame is fixed between the top surface of the ear plate and the extension plate. The connecting frame includes two parallel distributed connecting rods and an "X"-shaped rod fixed between the two connecting rods.

[0015] Preferably, a feeding port is formed on the surface of the extension plate. The feeding port is in an "L"-shaped opening, and a slope is formed on the side of the extension plate facing away from the building main body. An installation frame is inserted into one end port of the feeding port away from the slope. The installation frame is in a "匚"-shaped plate structure. Two installation holes are formed on each of the two parallel distributed side plates of the installation frame, and the two installation holes are arranged vertically. A coating roller is rotatably connected between the installation holes on the two parallel distributed side plates of the installation frame. A connecting piece is fixed on the surface of the installation frame, and the connecting piece is inserted into an assembling groove formed on the surface of the extension plate. The assembling groove communicates with the feeding port, and the connecting piece is fixed in the assembling groove by screws.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The building external cantilever beam side formwork reinforcement system proposed by the present invention integrates the support formwork and the reinforcement system. That is, after the prefabricated top formwork, prefabricated bottom formwork and prefabricated side formwork of the external cantilever beam with optimized design are assembled, a support structure for the cantilever beam is formed, which is the pouring formwork. Moreover, the connection structure between the prefabricated top formwork, prefabricated bottom formwork and prefabricated side formwork of the external cantilever beam serves as the reinforcement system. That is, the support formwork itself meets the reinforcement function, and the reinforcement of the formwork is synchronously realized during the assembly process of the formwork, which is beneficial to improving the on-site construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 an enlarged schematic view of the structure at A in

[0020] Figure 3 is Figure 1 an enlarged schematic view of the structure at B in

[0021] Figure 4 is Figure 1 an enlarged schematic view of the structure at C in

[0022] Figure 5 is a schematic structural diagram of the installation of the prefabricated bottom formwork of the external cantilever beam of the present invention;

[0023] Figure 6This is a schematic diagram of the half-section structure of the present invention;

[0024] Figure 7 for Figure 1 Enlarged schematic diagram of the structure at point D;

[0025] Figure 8 for Figure 1 Enlarged schematic diagram of the structure at point E in the middle;

[0026] Figure 9 This is a schematic diagram of the connection structure between the precast top formwork and the overlapping frame of the external cantilever beam of the present invention;

[0027] Figure 10 This is a schematic diagram of the extension plate structure of the present invention;

[0028] Figure 11 for Figure 10 Enlarged schematic diagram of the structure at point F;

[0029] Figure 12 This is a schematic diagram of the connection structure between the overlapping block and the traction piece of the present invention;

[0030] Figure 13 This is a schematic diagram of the reinforced tension plate structure of the present invention;

[0031] Figure 14 This is a schematic diagram of the connection structure between the clamping block and the push handle of the present invention;

[0032] Figure 15 This is a schematic diagram of the connection structure between the mounting frame and the coating roller of the present invention;

[0033] Figure 16 This is a schematic diagram of the prefabricated side formwork structure of the external cantilever beam of the present invention;

[0034] Figure 17 This is a schematic diagram of the connection structure between the clamping block and the spring of the present invention;

[0035] Figure 18 This is a schematic diagram of the turntable structure of the present invention;

[0036] Figure 19 This is a schematic diagram of the prefabricated bottom formwork structure of the external cantilever beam of the present invention.

[0037] In the diagram: 1. Main building structure; 2. Precast top formwork for cantilever beams; 3. Overlapping frame; 4. Limiting frame; 5. Lifting plate; 6. Precast bottom formwork for cantilever beams; 7. Stop bar; 8. Insert; 9. Overlap block; 10. Traction plate; 11. Elastic metal sheet; 12. Clip; 13. Pull ring; 14. Reserved slot; 15. Insert plate; 16. Precast side formwork for cantilever beams; 17. Support plate; 18. Connecting plate; 19. Assembly port; 20. Reinforcing tie plate; 21. Screw hole; 22. Connecting bolt; 23. Limiting plate; 24. Baffle. 25. Extension plate; 26. First mounting groove; 27. Storage groove; 28. Perforation; 29. ​​Clamping block; 30. Push handle; 31. Spring; 32. Rubber cover; 33. Divider groove; 34. Side groove; 35. Rubber pad; 36. Clamping protrusion; 37. Turntable; 38. Limiting shaft; 39. Notch; 40. Second mounting groove; 41. Rubber clip; 42. Pulley; 43. Ear plate; 44. Connecting frame; 45. Injection port; 46. Mounting frame; 47. Paint roller; 48. Connecting piece; 49. Assembly groove; 50. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] Please see Figure 1 , Figure 5 as well as Figure 6This invention provides a technical solution: a reinforcement system for side formwork of an external cantilever beam, comprising a precast top formwork 2 for the external cantilever beam, which is installed on one side of the main building 1. An overlapping frame 3 is fixed to the surface of the precast top formwork 2, overlapping the main building 1. A limiting frame 4 is fixed to the surface of the overlapping frame 3, and a lifting plate 5 is movably inserted into the bottom of the limiting frame 4. The lifting plate 5 is fixed to the surface of the precast bottom formwork 6 of the external cantilever beam. An overlapping block 9 is inserted into the top of the lifting plate 5, overlapping the top surface of the overlapping frame 3. An insert plate 16 is movably inserted into the surface of the lifting plate 5, and the insert plate 16 is fixed to the surface of the precast side formwork 17 of the external cantilever beam. A connecting plate 19 is fixed to the surface of the precast side formwork 17 of the external cantilever beam, and the connecting plate 19 is inserted into the surface of a reinforcing tie plate 21. Two limiting plates 24 are fixed to the surface of the reinforcing tie plate 21, and the two limiting plates 24 are positioned relative to the top plate of the overlapping frame 3. The reinforcement plate 21 is attached to the top surface of the lap frame 3. An extension plate 26 is fixed to the surface of the lap frame 3. A turntable 38 is rotatably connected to the surface of the extension plate 26. Multiple clamping blocks 30 are movably inserted into the surface of the extension plate 26. A notch 40 is opened on the surface of the turntable 38. A push handle 31 is fixed to the surface of the clamping block 30. The push handle 31 and the notch 40 correspond one-to-one. The support template and the reinforcement system are integrated together. After the optimized design of the precast top formwork 2, the precast bottom formwork 6, and the precast side formwork 17 of the outer cantilever beam are assembled, they form the support structure of the cantilever beam, which is the casting template. The connection structure between the precast top formwork 2, the precast bottom formwork 6, and the precast side formwork 17 of the outer cantilever beam acts as the reinforcement system. That is, the support template itself meets the reinforcement function. During the assembly of the template, the reinforcement of the template is realized simultaneously, which is conducive to improving the efficiency of on-site construction.

[0041] Example 2

[0042] See attached document Figure 2 , Figure 3 , Figure 9 , Figure 12 as well as Figure 19, on the basis of the first embodiment, in order to realize the suspension installation of the precast top mold 2 of the exterior floating beam and the precast bottom mold 6 of the exterior floating beam, the precast top mold 2 of the exterior floating beam has an "L"-shaped plate structure, the overlapping frame 3 has an inverted "J"-shaped plate structure, the height of the overlapping frame 3 is equal to the height of the precast top mold 2 of the exterior floating beam, the limiting frame 4 has a "匚"-shaped plate structure, there are two limiting frames 4, and the two limiting frames 4 are symmetrically distributed with respect to the overlapping frame 3. The lifting plates 5 and the limiting frames 4 correspond to each other one by one. The precast bottom mold 6 of the exterior floating beam has a "Z"-shaped plate structure, and the adjacent two plate bodies of the precast bottom mold 6 of the exterior floating beam are perpendicular. A socket 8 is formed on the surface of the lifting plate 5, and a lap joint block 9 is movably inserted into the socket 8. One end of the lap joint block 9 is fixed with a traction piece 10, an elastic metal sheet 11 is fixed on the surface of the traction piece 10, a clamping strip 12 is fixed on the bottom surface of the elastic metal sheet 11, the clamping strip 12 is in the shape of a right trapezoidal strip, and the clamping strip 12 is inserted into a clamping groove 13. The clamping groove 13 is formed on the top surface of the lifting plate 5. A pull ring 14 is fixed on the top surface of the elastic metal sheet 11, and a stop strip 7 is fixed on the surface of the lifting plate 5. After the lap joint block 9 is lapped on the top surface of the overlapping frame 3, the stop strip 7 abuts against the bottom surface of the limiting frame 4.

[0043] Lap the top plate of the overlapping frame 3 on the top surface of the building main body 1. At this time, the two parallel side plates of the overlapping frame 3 are distributed on both sides of the building main body 1. The overlapping frame 3 constitutes a traction suspension structure for the precast top mold 2 of the exterior floating beam. Push the precast bottom mold 6 of the exterior floating beam from below the precast top mold 2 of the exterior floating beam, and pass the top end of the lifting plate 5 through the corresponding limiting frame 4. When the stop strip 7 abuts against the bottom surface of the limiting frame 4, the socket 8 is above the overlapping frame 3. Insert the lap joint block 9 into the overlapping frame 3, squeeze the traction piece 10, and the elastic metal sheet 11 covers above the lifting plate 5, and the clamping strip 12 is inserted into the clamping groove 13 to realize the limit of the traction piece 10. In this way, the lap joint block 9 will not break away from the socket 8, that is, the lap joint block 9 prevents the lifting plate 5 from falling. Moreover, the bottom plate body of the precast bottom mold 6 of the exterior floating beam abuts against one side of the building main body 1, and the precast bottom mold 6 of the exterior floating beam is suspended below the precast top mold 2 of the exterior floating beam through the lifting plate 5. The space between the precast bottom mold 6 of the exterior floating beam and the precast top mold 2 of the exterior floating beam is used to pour the building exterior floating beam. When the lap joint block 9 needs to be removed, pinch the pull ring 14 to stretch the elastic metal sheet 11 to cause elastic deformation. The pull ring 14带动 the clamping strip 12 to disengage from the clamping groove 13. At this time, there is no connection between the traction piece 10 and the lifting plate 5. Pull the traction piece 10 to drive the lap joint block 9 to be withdrawn from the socket 8.

[0044] Embodiment Three

[0045] Refer to the appendix Figure 4 、 Figure 13 and Figure 16Based on Embodiment 2, in order to achieve reinforcement after the prefabricated top formwork 2 and the prefabricated bottom formwork 6 of the outer beam are suspended, after the prefabricated side formwork 17 of the outer beam is installed, the top surface of the connecting plate 19 is above the top surface of the prefabricated bottom formwork 6 of the outer beam. The surface of the reinforcing pull plate 21 is provided with an assembly port 20. The top end of the connecting plate 19 is inserted into the assembly port 20. One end of the reinforcing pull plate 21 is screwed with a connecting screw 23. After the connecting screw 23 is inserted into the assembly port 20, it is screwed into the screw hole 22. The other end of the reinforcing pull plate 21 is inserted into two baffles 25 and then overlapped on the top surface of the overlapping frame 3. The baffles 25 are fixed on the top surface of the overlapping frame 3.

[0046] Insert the insert plate 16 into the reserved slot 15. At this time, the precast side formwork 17 of the outer beam is blocked on one side of the space between the precast top formwork 2 and the precast bottom formwork 6 of the outer beam, and the support plate 18 is pressed against the bottom surface of the precast bottom formwork 6 of the outer beam. After the assembly port 20 is fastened to the top of the connecting plate 19, the other end of the reinforcing pull plate 21 is pushed into the space between the two baffles 25. At this time, the two limiting plates 24 are distributed on both sides of the top plate of the overlapping frame 3. Tighten the connecting screw 23 into the screw hole 22. At this time, the reinforcing pull plate 21 tensions and limits the precast bottom formwork 6 of the outer beam, so as to prevent the precast bottom formwork 6 of the outer beam from sinking after concrete is poured between the precast top formwork 2 and the precast bottom formwork 6 of the outer beam.

[0047] Example 4

[0048] See attached document Figure 7 , Figure 10 , Figure 14 , Figure 17 as well as Figure 18Based on Embodiment 3, in order to fix the overlapping frame 3 after it is attached to the main building 1, the extension plate 26 has a first mounting groove 27 on the side facing away from the overlapping frame 3. The first mounting groove 27 is a circular groove. The extension plate 26 has multiple storage grooves 28 on the side facing the overlapping frame 3. The storage grooves 28 are square grooves. The surface of the storage grooves 28 has through holes 29 that connect the storage grooves 28 and the first mounting groove 27. The clamping block 30 is a square plate that is movably inserted into the storage grooves 28. The thickness of the clamping block 30 is less than the depth of the storage groove 28. A spring 32 is fixed on the side of the clamping block 30 facing the inside of the storage groove 28. A rubber cover 33 and one end of a spring 32 are fixed to the surface of the receiving groove 28. The rubber cover 33 is fitted over the outside of the spring 32, and the spring 32 is fitted over the outside of the push handle 31. The push handle 31 is movably inserted into the through hole 29. The end of the push handle 31 facing the first mounting groove 27 is integrally formed with a spherical surface. A partition groove 34 is opened on the side of the clamping block 30 facing away from the receiving groove 28. The partition groove 34 is a cross-shaped groove. Multiple side grooves 35 are also opened on the side of the clamping block 30 facing away from the receiving groove 28. The multiple side grooves 35 are distributed at the corners of the partition groove 34 and are connected to the partition groove 34. The depth of the side groove 35 is less than that of the partition groove 34. The groove 35 has a depth of 4. A rubber gasket 36 is fixed to the surface of the side groove 35. The thickness of the rubber gasket 36 is greater than the depth of the side groove 35. Multiple clamping protrusions 37 are fixed to the surface of the partition groove 34. The clamping protrusions 37 have a frustum-shaped structure and the height of the clamping protrusions 37 is greater than the straight-line distance from the side of the rubber gasket 36 facing away from the side groove 35 to the surface of the partition groove 34. The turntable 38 has a circular plate-like structure. A limiting shaft 39 is inserted into the inner ring of the turntable 38. The limiting shaft 39 has a "T"-shaped cylindrical structure. The diameter of one end of the limiting shaft 39 is greater than the diameter of the inner ring of the turntable 38. The other end of the limiting shaft 39 passes through the inner ring of the turntable 38 and is fixed in the first mounting groove. On the surface of the first mounting slot 27, the notch 40 is U-shaped. Multiple notches 40 are arranged along the outer ring surface of the turntable 38. Multiple levers 43 are fixed on the surface of the turntable 38 facing away from the first mounting slot 27. Multiple levers 43 are arranged around the inner ring of the turntable 38. When the turntable 38 blocks one side of the push handle 31, the push handle 31 pushes the clamping block 30 to tension the spring 32 and the rubber cover 33 to produce elastic deformation. After the turntable 38 is turned by the user, it rotates around the limiting shaft 39. When the notch 40 and the push handle 31 correspond, the spring 32 and the rubber cover 33 rebound, and one end of the push handle 31 is inserted into the notch 40. At this time, the clamping block 30 retracts into the storage slot 28.A second mounting groove 41 is provided on the side wall of the first mounting groove 27. Multiple second mounting grooves 41 are provided. A rubber clip 42 is fixed to the surface of each second mounting groove 41. The rubber clip 42 protrudes from the second mounting groove 41 and inserts into a notch 40. Ear plates 44 are fixed to both sides of the extension plate 26. Pre-drilled holes are provided on the surface of the ear plates 44 for bolts to pass through and connect the ear plates 44 to the main building 1. A connecting frame 45 is fixed between the top surface of the ear plates 44 and the extension plate 26. The connecting frame 45 includes two parallel connecting rods and an "X"-shaped rod fixed between the two connecting rods.

[0049] When the notch 40 and the perforation 29 are misaligned, the turntable 38 blocks the push handle 31. At this time, the push handle 31 pushes the clamping block 30 to clamp the building body 1. At the same time, the spring 32 and the rubber cover 33 are stretched and deformed. When the clamping block 30 clamps the building body 1, the protruding part of the clamping protrusion 37 is embedded into the surface of the building body 1, and the rubber pad 36 is squeezed and deformed into the side groove 35 until the surface of the clamping block 30 contacts the building body 1. In this way, while the clamping block 30 clamps the building body 1, the rubber pad 36 plays an anti-slip role, and the clamping protrusion 37 plays a role in reinforcing the clamping. At this time, the protruding part of the rubber clip 42 is inserted into the notch 40 to brake the turntable 38 and prevent the turntable 38 from being pulled into place. 8. When there is no external force, it rotates around the limiting shaft 39. In order to strengthen the connection between the precast bottom formwork 6 of the outer beam and the main body 1, bolts can be selectively installed on the surface of the ear plate 44. The bolts pass through the ear plate 44 and are fixed to the surface of the main body 1. When it is necessary to remove the connection between the extension plate 26 and the main body 1, the finger is inserted between two adjacent levers 43 and the levers 43 are moved to drive the turntable 38 to rotate around the limiting shaft 39. When the turntable 38 rotates to the point where the notch 40 and the through hole 29 correspond, the spring 32 and the rubber cover 33 rebound and pull the clamping block 30 to retract into the storage groove 28, and the push handle 31 is pushed into the notch 40 by the clamping block 30. At this time, the clamping block 30 no longer clamps the main body 1.

[0050] Example 5

[0051] See attached document Figure 8 , Figure 11 as well as Figure 15, on the basis of the fourth embodiment, in order to repair the part of the surface of the building main body 1 punctured by the clamping protrusion 37, a material injection port 46 is formed on the surface of the extension plate 26. The material injection port 46 is in an "L" shape. The material injection port 46 forms a slope on the side of the extension plate 26 facing away from the building main body 1. One end of the material injection port 46 away from the slope is plugged with a mounting frame 47. The mounting frame 47 is in a "C" - shaped plate - like structure. Two mounting holes are formed on each of the two parallel - distributed side plates of the mounting frame 47. The two mounting holes are arranged vertically. A paint roller 48 is rotatably connected between the mounting holes on the two parallel - distributed side plates of the mounting frame 47. A connecting piece 49 is fixed on the surface of the mounting frame 47. The connecting piece 49 is plugged into an assembly groove 50. The assembly groove 50 is formed on the surface of the extension plate 26. The assembly groove 50 is connected to the material injection port 46, and the connecting piece 49 is fixed in the assembly groove 50 by screws.

[0052] Inject the repair paint into the material injection port 46. When the overlapping frame 3 is removed, the overlapping frame 3 is lifted upward to带动 the extension plate 26 to move synchronously. The paint is applied to the area of the surface of the building main body 1 punctured by the clamping protrusion 37 through the paint roller 48, realizing the repair of the surface of the building main body 1 during the removal of the overlapping frame 3. And the mounting frame 47 can be removed, which is convenient for cleaning the inside of the material injection port 46. The specific removal operation is as follows: loosen the screw on the surface of the connecting piece 49. After the screw detaches from the surface of the assembly groove 50, there is no connection between the connecting piece 49 and the assembly groove 50, and the mounting frame 47 can be pulled out from the material injection port 46.

[0053] In actual use, the top plate of the overlapping frame 3 is overlapped on the top surface of the main building 1. At this time, the two parallel side plates of the overlapping frame 3 are distributed on both sides of the main building 1. The overlapping frame 3 forms a traction and suspension structure for the precast top formwork 2 of the outer cantilever beam. The precast bottom formwork 6 of the outer cantilever beam is pushed from below the precast top formwork 2 of the outer cantilever beam, and the top of the hoisting plate 5 is passed through the corresponding limiting frame 4 until the stop bar 7 abuts against the bottom surface of the limiting frame 4. The insertion port 8 is above the overlapping frame 3. The overlapping block 9 is inserted into the overlapping frame 3, and the traction plate 10 is pushed. The elastic metal plate 11 covers the top of the hoisting plate 5, and the locking strip 12 is inserted into the locking groove 13 to limit the traction plate 10. In this way, the overlapping block 9 will not detach from the insertion port 8, that is, the overlapping block 9 supports the hoisting plate 10. The slab 5 is used for anti-fall limiting, and the bottom slab of the precast bottom formwork 6 of the cantilever beam rests against one side of the main building 1. The precast bottom formwork 6 of the cantilever beam is suspended below the precast top formwork 2 of the cantilever beam by the hoisting slab 5. The space between the precast bottom formwork 6 of the cantilever beam and the precast top formwork 2 of the cantilever beam is used to pour the cantilever beam of the building. When the overlapping block 9 needs to be removed, the elastic metal sheet 11 is stretched by squeezing the pull ring 14, and the pull ring 14 drives the clip 12 to disengage from the slot 13. At this time, there is no connection between the traction piece 10 and the hoisting slab 5. Pulling the traction piece 10 will pull the overlapping block 9 out of the insertion port 8. The insertion plate 16 is inserted into the reserved slot 15. At this time, the precast side formwork 17 of the cantilever beam is sealed on one side of the space between the precast top formwork 2 of the cantilever beam and the precast bottom formwork 6 of the cantilever beam. And the support plate 18 rests against the bottom surface of the precast bottom formwork 6 of the outer beam. After the assembly port 20 is fastened to the top of the connecting plate 19, the other end of the reinforcing tie plate 21 is pushed into the space between the two baffles 25. At this time, the two limiting plates 24 are distributed on both sides of the top plate of the overlapping frame 3. The connecting screw 23 is screwed into the screw hole 22. At this time, the reinforcing tie plate 21 tensions and limits the precast bottom formwork 6 of the outer beam to prevent the precast bottom formwork 6 of the outer beam from sinking after concrete is poured between the precast top formwork 2 and the precast bottom formwork 6 of the outer beam. When the notch 40 and the perforation 29 are misaligned, the turntable 38 blocks the push handle 31. At this time, the push handle 31 pushes the clamping block 30 to clamp the main body 1 of the building. At this time, the spring 32 and the rubber cover 33 are tensioned and deformed to clamp. When block 30 clamps the main body 1, the protruding part of clamping protrusion 37 is inserted into the surface of the main body 1, and the rubber pad 36 is squeezed and deformed into the side groove 35 until the surface of clamping block 30 contacts the main body 1. In this way, while clamping block 30 clamps the main body 1, rubber pad 36 plays an anti-slip role, and clamping protrusion 37 plays a role in reinforcing the clamping. At this time, the protruding part of rubber block 42 is inserted into notch 40 to brake turntable 38 and prevent turntable 38 from rotating around limit axis 39 without external force. In order to strengthen the connection between the precast bottom formwork 6 of the outer beam and the main body 1, bolts can be selectively installed on the surface of ear plate 44, and the bolts are used to fix the ear plate 44 to the surface of the main body 1.When it is necessary to detach the connection between the extension plate 26 and the main building 1, insert a finger between two adjacent levers 43 and move the levers 43 to drive the turntable 38 to rotate around the limiting shaft 39. When the turntable 38 rotates to the point where the notch 40 and the perforation 29 correspond, the spring 32 and the rubber cover 33 rebound and pull the clamping block 30 into the storage groove 28, and the push handle 31 is pushed into the notch 40 by the clamping block 30. At this time, the clamping block 30 no longer clamps the main building 1. Inject the repair paint into the injection port 46. When removing the overlapping frame 3, the overlapping frame 3 is removed. When the connecting frame 3 is lifted, it causes the extension plate 26 to move synchronously. Paint is applied via the paint roller 48 to the area on the surface of the main building 1 that has been punctured by the clamped protrusion 37, thus repairing the surface of the main building 1 during the removal of the connecting frame 3. Furthermore, the mounting bracket 47 can be removed to facilitate cleaning of the inside of the injection port 46. The specific removal operation is as follows: loosen the screws on the surface of the connecting piece 49. After the screws detach from the surface of the assembly groove 50, there is no connection between the connecting piece 49 and the assembly groove 50. The mounting bracket 47 can then be pulled out from the injection port 46.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A side formwork reinforcement system for an external cantilever beam, comprising a precast top formwork (2) for the external cantilever beam, wherein the precast top formwork (2) for the external cantilever beam is installed on one side of the main body of the building (1), characterized in that: A lapping frame (3) is fixed on the surface of the precast top formwork (2) of the cantilever beam. The lapping frame (3) laps over the building main body (1). A limiting frame (4) is fixed on the surface of the lapping frame (3). A hoisting plate (5) is movably inserted into the bottom of the limiting frame (4). The hoisting plate (5) is fixed on the surface of the precast bottom formwork (6) of the cantilever beam. A lapping block (9) is inserted into the top end of the hoisting plate (5). The lapping block (9) laps on the top surface of the lapping frame (3). An insertion plate (16) is movably inserted into the surface of the hoisting plate (5). The insertion plate (16) is fixed on the surface of the precast side formwork (17) of the cantilever beam. A connecting plate (19) is fixed on the surface of the precast side formwork (17) of the cantilever beam. The connecting plate (19) is inserted into the surface of the reinforcing tension plate (21). Two limiting plates (24) are fixed on the surface of the reinforcing tension plate (). The two limiting plates (24) are symmetrically distributed with respect to the top plate of the lapping frame (3). And the reinforcing tension plate (21) laps on the top surface of the lapping frame (3). An extension plate (26) is fixed on the surface of the lapping frame (3). A turntable (38) is rotatably connected to the surface of the extension plate (26). A plurality of clamping blocks (30) are movably inserted into the surface of the extension plate (26). A notch (40) is formed on the surface of the turntable (38). A push handle (31) is fixed on the surface of the clamping block (30). The push handle (31) and the notch (40) correspond to each other one by one; The precast top formwork (2) of the cantilever beam is in an "L"-shaped plate structure. The lapping frame (3) is in an inverted "J"-shaped plate structure. The height of the lapping frame (3) is equal to the height of the precast top formwork (2) of the cantilever beam. The limiting frame (4) is in a "C"-shaped plate structure. There are two limiting frames (4). The two limiting frames (4) are symmetrically distributed with respect to the lapping frame (3). The hoisting plate (5) and the limiting frame (4) correspond to each other one by one. The precast bottom formwork (6) of the cantilever beam is in a "Z"-shaped plate structure. The adjacent two plate bodies of the precast bottom formwork (6) of the cantilever beam are perpendicular. An insertion socket (8) is formed on the surface of the hoisting plate (5). The lapping block (9) is movably inserted into the insertion socket (8). A traction piece (10) is fixed at one end of the lapping block (9). An elastic metal piece (11) is fixed on the surface of the traction piece (10). A clamping strip (12) is fixed on the bottom surface of the elastic metal piece (11). The clamping strip (12) is in a right trapezoidal strip shape. The clamping strip (12) is inserted into a clamping groove (13). The clamping groove (13) is formed on the top surface of the hoisting plate (5). A pull ring (14) is fixed on the top surface of the elastic metal piece (11). A stop strip (7) is fixed on the surface of the hoisting plate (5). After the lapping block (9) laps on the top surface of the lapping frame (3), the stop strip (7) abuts against the bottom surface of the limiting frame (4).

2. The building exterior beam side formwork reinforcement system according to claim 1, characterized in that: The surface of the hoisting plate (5) is provided with a reserved slot (15), and the insertion plate (16) is movably inserted into the reserved slot (15). The precast side formwork (17) of the cantilever beam is in an "L"-shaped plate structure. There are two precast side formworks (17) of the cantilever beam, and the two precast side formworks (17) are symmetrically distributed with respect to the precast top formwork (2) of the cantilever beam. And the two precast side formworks (17) respectively block the two sides of the groove body between the precast top formwork (2) and the precast bottom formwork (6) of the cantilever beam. A support plate (18) is fixed at the bottom end of the precast side formwork (17) of the cantilever beam. The support plate (18) is in an "L"-shaped plate structure, and the support plate (18) supports the bottom of the precast bottom formwork (6) of the cantilever beam. The connecting plate (19) is in a "convex"-shaped plate structure, and screw holes (22) are provided on the surface of the connecting plate (19).

3. The side formwork reinforcement system for an external cantilever beam of a building according to claim 2, characterized in that: After the precast side formwork (17) of the cantilever beam is installed, the top surface of the connecting plate (19) is above the top surface of the precast bottom formwork (6) of the cantilever beam. An assembly opening (20) is provided on the surface of the reinforcing pull plate (21). The top end of the connecting plate (19) is inserted into the assembly opening (20). One end of the reinforcing pull plate (21) is screwed with a connecting screw rod (23). After the connecting screw rod (23) is inserted into the assembly opening (20), it is screwed into the screw hole (22). The other end of the reinforcing pull plate (21) is inserted between two baffles (25) and then lapped on the top surface of the lapping frame (3). The baffle (25) is fixed on the top surface of the lapping frame (3).

4. The building exterior beam side formwork reinforcement system according to claim 3, characterized in that: A first installation groove (27) is provided on the surface of the extension plate (26) facing away from the lapping frame (3). The first installation groove (27) is a circular groove. A plurality of storage grooves (28) are provided on the surface of the extension plate (26) facing the lapping frame (3). The storage grooves (28) are square grooves. Through holes (29) are provided on the surface of the storage grooves (28). The through holes (29) communicate the storage grooves (28) and the first installation groove (27). The clamping block (30) is a square plate. The clamping block (30) is movably inserted into the storage groove (28). The thickness of the clamping block (30) is less than the depth of the storage groove (28). A spring (32) and a rubber cover (33) are fixed on the surface of the clamping block (30) facing the inner side of the storage groove (28). One ends of the rubber cover (33) and the spring (32) are fixed on the surface of the storage groove (28), and the rubber cover (33) is sleeved outside the spring (32). The spring (32) is sleeved outside the push handle (31). The push handle (31) is movably inserted into the through hole (29). A spherical surface is integrally formed at one end of the push handle (31) facing the first installation groove (27).

5. The side formwork reinforcement system for an external cantilever beam of a building according to claim 4, characterized in that: The clamping block (30) has a partition groove (34) on the side facing away from the storage groove (28). The partition groove (34) is in the shape of a cross. The clamping block (30) also has multiple side grooves (35) on the side facing away from the storage groove (28). The multiple side grooves (35) are distributed at the corners of the partition groove (34). The side grooves (35) are connected to the partition groove (34). The depth of the side grooves (35) is less than the depth of the partition groove (34). A rubber pad (36) is fixed on the surface of the side grooves (35). The thickness of the rubber pad (36) is greater than the depth of the side grooves (35). Multiple clamping protrusions (37) are fixed on the surface of the partition groove (34). The clamping protrusions (37) are in the shape of a frustum. The height of the clamping protrusions (37) is greater than the straight distance from the side of the rubber pad (36) facing away from the side groove (35) to the surface of the partition groove (34).

6. The side formwork reinforcement system for an external cantilever beam of a building according to claim 5, characterized in that: The turntable (38) has a circular plate-like structure. A limiting shaft (39) is inserted into the inner ring of the turntable (38). The limiting shaft (39) has a "T"-shaped cylindrical structure. One end of the limiting shaft (39) has a diameter larger than the inner ring diameter of the turntable (38). The other end of the limiting shaft (39) passes through the inner ring of the turntable (38) and is fixed to the surface of the first mounting groove (27). The notch (40) has a "U"-shaped groove. Multiple notches (40) are arranged along the outer ring surface of the turntable (38). Multiple dials are fixed on the surface of the turntable (38) facing away from the first mounting groove (27). Multiple levers (43) are arranged around the inner ring of the turntable (38). When the turntable (38) blocks one side of the push handle (31), the push handle (31) pushes the clamping block (30) to stretch the spring (32) and the rubber cover (33) to produce elastic deformation. After the turntable (38) is turned by the user, it rotates around the limiting shaft (39). When the notch (40) and the push handle (31) correspond, the spring (32) and the rubber cover (33) rebound, and one end of the push handle (31) is inserted into the notch (40). At this time, the clamping block (30) retracts into the storage groove (28).

7. The building exterior beam side formwork reinforcement system according to claim 6, characterized in that: The first mounting groove (27) has a second mounting groove (41) on its side wall. There are multiple second mounting grooves (41). A rubber clip (42) is fixed on the surface of the second mounting groove (41). The rubber clip (42) protrudes from the second mounting groove (41) and is inserted into the notch (40). Ear plates (44) are fixed on both sides of the extension plate (26). A reserved hole is opened on the surface of the ear plate (44) for bolts to pass through and connect the ear plate (44) and the building body (1). A connecting frame (45) is fixed between the top surface of the ear plate (44) and the extension plate (26). The connecting frame (45) includes two parallel connecting rods and an "X" shaped rod fixed between the two connecting rods.

8. The building exterior beam side formwork reinforcement system according to claim 1, characterized in that: The surface of the extension plate (26) is provided with a material injection port (46). The material injection port (46) is in an "L" shape. The material injection port (46) forms a slope on the side of the extension plate (26) facing away from the building main body (1). One end of the material injection port (46) far from the slope is inserted with an installation frame (47). The installation frame (47) is in a "U" - shaped plate - like structure. Two installation holes are respectively provided on the two parallel - distributed side plates of the installation frame (47), and the two installation holes are arranged vertically. A paint roller (48) is rotatably connected between the installation holes of the two parallel - distributed side plates of the installation frame (47). A connecting piece (49) is fixed on the surface of the installation frame (47). The connecting piece (49) is inserted into an assembly groove (50). The assembly groove (50) is opened on the surface of the extension plate (26). The assembly groove (50) communicates with the material injection port (46), and the connecting piece (49) is fixed in the assembly groove (50) by screws.

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