Outer wall old building repairing and reinforcing device

Abstract

The invention relates to an outer wall old building repairing and reinforcing device and belongs to the field of old building repairing, the outer wall old building repairing and reinforcing device comprises an outer formwork and an inner formwork, the outer formwork abuts against the outer side of an outer wall, the inner formwork abuts against the inner side of the outer wall, the inner formwork is connected with the outer formwork through a tensioning assembly, the tensioning assembly comprises a tensioning column, a positioning plate and an adjusting rod, and the inner formwork is provided with a moving groove; the tensioning column slides in the moving groove, an adjusting hole is formed in the groove bottom of the moving groove, the adjusting rod rotates in the adjusting hole, the positioning plate rotates at the end, away from the adjusting rod, of the tensioning column, a tensioning hole is formed in the outer formwork, a tensioning groove is formed in the side, away from the inner formwork, of the outer formwork, and the axis of the tensioning hole is perpendicular to the axis of the tensioning groove. The inner formwork and the outer formwork support the outer wall at the same time, connection between the outer formwork and the inner formwork is reinforced through the tensioning columns and the positioning plates, the supporting capacity of the inner formwork and the outer formwork to the outer wall is improved, meanwhile, the step of dismantling part of the outer wall is omitted, the outer wall is not prone to damage, and the safety during repairing of the outer wall is improved.

Description

Technical Field

[0001] This application relates to the field of old building repair, and in particular to a device for repairing and reinforcing the exterior walls of old buildings. Background Technology

[0002] After a long period of use, the overall strength of the exterior walls of old buildings decreases. When repairing the exterior walls of old buildings, it is usually necessary to first use scaffolding to limit and support the exterior walls, then design through beams to reinforce the wall foundation, and demolish part of the wall for local repair.

[0003] In actual use, due to the severe weathering of the exterior wall surface of old buildings and the decrease in the viscosity of the clay in the original building, the walls are prone to collapse during manual demolition, resulting in damage to the exterior walls of old buildings and low safety, which needs to be improved. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a device for repairing and reinforcing the exterior walls of old buildings.

[0005] This application provides a device for repairing and reinforcing the exterior walls of old buildings, which adopts the following technical solution: A device for repairing and reinforcing the exterior walls of old buildings includes an outer formwork and an inner formwork. The outer formwork abuts against the outer side of the exterior wall, and the inner formwork abuts against the inner side of the exterior wall. The inner formwork is connected to the outer formwork via a tensioning assembly. The tensioning assembly includes a tensioning column, a positioning plate, and an adjusting rod. A moving groove is provided on the side of the inner formwork closest to the outer formwork. The tensioning column is slidably connected in the moving groove. An adjusting hole is provided at the bottom of the moving groove. The adjusting rod is rotatably connected to the adjusting hole and threadedly connected to the tensioning column. The positioning plate is rotatably connected to the end of the tensioning column away from the adjusting rod. A tensioning hole is provided on the outer formwork. A tensioning groove communicating with the tensioning hole is provided on the side of the outer formwork away from the inner formwork. The axes of the tensioning hole and the tensioning groove are perpendicular. A stabilizing component is provided in the outer formwork. The tensioning column is connected to the stabilizing component via a control component. When the positioning plate moves toward the tensioning groove, the tensioning column drives the control component to control the stabilizing component to insert into the exterior wall.

[0006] By adopting the above technical solution, when the exterior wall of an old building needs repair, workers place the outer and inner formwork on the outer and inner sides of the exterior wall respectively, allowing the tensioning column to pass through the tensioning hole. Then, the positioning plate is rotated so that it aligns with the tensioning groove. The worker then rotates the adjusting rod, which, under the limiting and guiding action of the moving groove, drives the tensioning column to move. The tensioning column then moves the positioning plate gradually towards the bottom of the tensioning groove, causing it to engage and secure the outer and inner formwork. During the movement of the tensioning column, the control component is activated, which in turn activates the stabilizing component, causing part of the stabilizing component to insert into the exterior wall, thus securing the outer formwork. This facilitates simultaneous reinforcement of the exterior wall using both outer and inner formwork, reduces the need for partial demolition of the exterior wall, lowers the possibility of damage during repairs, and improves safety.

[0007] Preferably, the stabilizing component includes a stabilizing cylinder, a stabilizing column, and an embedded plate. A stabilizing cavity is formed in the outer template. The stabilizing cylinder is rotatably connected to the stabilizing cavity. The stabilizing column slides along the axial direction of the stabilizing cylinder and is provided with a limiting block. A limiting hole is formed on the inner wall of the stabilizing cylinder along its own axial direction, and the limiting block is slidably connected to the limiting hole. The embedded plate is disposed on the outer side of the outer wall. The control component drives the stabilizing cylinder to rotate and controls the threaded connection between the stabilizing column and the embedded plate. By adopting the above technical solution, during the movement of the tension column, the control component is activated and drives the stabilizing cylinder to rotate. When the stabilizing column contacts the embedded plate, the limiting block and limiting hole prevent the stabilizing column from spinning freely. Since the stabilizing column can be threadedly connected to the embedded plate, it can gradually move away from the stabilizing cylinder, thus connecting with the embedded plate and completing the connection between the stabilizing column and the embedded plate. This reinforces the connection between the outer formwork and the outer side of the outer wall, allowing the outer formwork to provide more stable support for the outer wall.

[0008] Preferably, the control component includes a first rack, a first gear, and a first bevel gear. The first rack is disposed on a tensioning column, the first gear is rotatably connected in a stabilizing cavity, the first gear extends into a tensioning hole and meshes with the first rack, the first bevel gear is coaxially connected with the first gear, and a second bevel gear is sleeved on the stabilizing cylinder, the second bevel gear meshing with the first bevel gear.

[0009] By adopting the above technical solution, during the process of the tensioning column extending out of the tensioning hole, the first rack contacts the first gear and drives the first gear to rotate. At this time, the rotation direction of the stabilizing column is opposite to the direction of the threaded section on the embedded plate, so it will not affect the stabilizing column. During the process of the tensioning column driving the positioning plate to move towards the tensioning groove, the first rack then drives the first gear and the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear then drives the stabilizing cylinder to rotate, and the stabilizing cylinder then drives the stabilizing column to rotate, so that the stabilizing column is threadedly connected to the embedded plate, thereby facilitating the connection between the outer formwork and the outer wall.

[0010] Preferably, the positioning plate has a connecting cylinder on the side near the tensioning column, and the tensioning column has a connecting column on the side near the positioning plate. The connecting column is rotatably connected to the inner wall of the connecting cylinder. The inner wall of the connecting cylinder has a clearance groove, and a positioning block is slidably connected in the clearance groove. A first spring is provided in the clearance groove, with one end connected to the bottom of the clearance groove and the other end connected to the positioning block. The connecting column has a first positioning groove and a second positioning groove. When the positioning plate passes through the tensioning hole, the positioning block is positioned in the first positioning groove. When the positioning plate moves toward the bottom of the tensioning groove, the positioning block is positioned in the second positioning groove.

[0011] By adopting the above technical solution, during the process of the tensioning column passing through the tensioning hole, the positioning block is located in the first positioning groove, so that the positioning plate can pass through the tensioning hole more stably. After the positioning plate and the tensioning column extend out of the tensioning hole, the worker rotates the positioning plate, which drives the connecting cylinder to rotate. The connecting cylinder then drives the positioning block to separate from the first positioning groove, at which point the first spring is in a compressed state. When the positioning block is opposite to the second positioning groove, under the action of the rebound force of the first spring, the positioning block is engaged in the second positioning groove, thus completing the positioning of the positioning plate, so that the positioning plate can be engaged more stably in the tensioning groove later. Under the action of the positioning block and the spring, it is convenient to position the positioning plate, improving the positioning accuracy of the positioning plate.

[0012] Preferably, the tensioning components are configured as two sets and evenly arranged on the long side of the inner template. The two adjacent sets of tensioning components are connected by a synchronization component. The synchronization component includes a first synchronization wheel, a second synchronization wheel, and a synchronization belt. The first synchronization wheel is coaxially connected to the adjusting rod of one set of tensioning components, and the second synchronization wheel is coaxially connected to the adjusting rod of the other set of tensioning components. The synchronization belt is wound around the first and second synchronization wheels.

[0013] By adopting the above technical solution, the installation of two sets of tensioning components improves the connection stability between the outer and inner formwork, as well as the connection stability between the outer formwork and the outer wall. When synchronous control of the two sets of tensioning components is required, one of the adjusting rods is rotated. The adjusting rod drives the corresponding first or second synchronous wheel to rotate, and the synchronous belt then drives the adjacent first or second synchronous wheel to rotate, thus controlling the adjacent adjusting rods to rotate synchronously, thereby achieving the function of synchronously controlling the two sets of tensioning components.

[0014] Preferably, a support rod is rotatably connected to both short sides of the inner template, and a support seat is rotatably connected to the side of the support rod away from the inner template. The inner template is provided with an adjustment component for controlling the rotation of the support rod, one end of which cooperates with a timing belt and the other end of which cooperates with the support rod.

[0015] By adopting the above technical solution, during the operation of the synchronous belt, the adjustment component starts and controls the rotation of the support rod, so that the end of the support rod away from the inner formwork moves toward the ground to continue supporting the inner formwork, thereby improving the support capacity of the inner formwork for the inner side of the outer wall.

[0016] Preferably, the adjustment assembly includes a drive wheel, an adjustment wheel, a first bending plate, and a second bending plate. The drive wheel meshes with a synchronous belt. An adjustment cavity is provided in the inner template. The shaft of the drive wheel extends into the adjustment cavity and is coaxially connected to the adjustment wheel. The first bending plate and the second bending plate are arranged opposite to each other on the adjustment wheel. The first bending plate and the second bending plate are symmetrically arranged about the axis of the adjustment wheel. Each of the first bending plate and the second bending plate corresponds to a support rod. The support rod extends into the adjustment cavity. The first bending plate and the second bending plate are connected to the corresponding support rod through a connecting assembly.

[0017] By adopting the above technical solution, when the support rod needs to be controlled, the worker controls one of the adjusting rods to rotate, thereby controlling the synchronous belt to start. The synchronous belt then controls the rotation of the transmission wheel. The transmission wheel then drives the adjusting wheel to rotate, which in turn drives the first and second bending plates to rotate. The first and second bending plates control the corresponding connecting components to start, and the connecting components then control the rotation of the corresponding support rods to support the inner template, thus facilitating the adjustment of the support rods.

[0018] Preferably, the connecting assembly includes a connecting wheel, a connecting plate, and a first pull rope. The connecting wheel is rotatably connected in the adjusting cavity. The support rod has a groove at one end of the adjusting cavity, and a slider is slidably connected in the groove. One end of the connecting plate is hinged to the slider ball, and the other end is connected to one end of the first pull rope. The end of the first pull rope away from the connecting plate passes around the corresponding connecting wheel and is connected to the corresponding first bending plate or the corresponding second bending plate.

[0019] By adopting the above technical solution, the first and second bending plates rotate and pull the corresponding first pull rope. The first pull rope then drives the connecting wheel to rotate. The connecting wheel increases the prestress inside the first pull rope, making it less prone to breakage. The end of the first pull rope away from the corresponding first or second bending plate drives the connecting plate to move. The connecting plate then drives the slider to move along the slide groove. At this time, the slider can drive one end of the support rod to move away from the ground, so that the other end of the support rod moves towards the ground. When the support rod touches the ground, it can support the inner template, thus providing convenience for using the support rod to support the inner template.

[0020] Preferably, the inner template has a slot, and a plug-in post is slidably connected in the slot. The adjustment cavity is provided with a drive component for controlling the movement of the plug-in post. One end of the drive component is connected to one end of the support rod located in the adjustment cavity, and the other end cooperates with the plug-in post.

[0021] By adopting the above technical solution, during the rotation of the support rod, the drive component is started and the plug-in column is controlled, so that the plug-in column moves toward the ground. After the plug-in column is inserted into the ground, it can support the inner formwork, making the inner formwork less likely to move during use, thereby improving the reinforcement effect of the inner formwork on the outer wall.

[0022] Preferably, the driving assembly includes a driving block, a second gear, and a second rack. A limiting groove is formed in the inner wall of the adjusting cavity. The driving block is slidably connected in the limiting groove. The driving block is connected to one end of the support rod located in the adjusting cavity via a second pull rope. A driving groove for connecting the limiting groove and the slot is formed in the inner template. The second gear is rotatably connected in the driving groove. The second rack is set on the driving block and meshes with the second gear. A third rack is provided on the insertion post and meshes with the second gear.

[0023] By adopting the above technical solution, during the rotation of the support rod, the support rod drives the second pull rope to move, the second pull rope pulls the drive block to move, the drive block drives the second rack to move, the second rack then drives the second gear to rotate, the second gear then drives the third rack to move, and the third rack then drives the insertion post to move, so that the insertion post is gradually inserted into the ground, thereby providing convenience for workers to adjust the position of the insertion post.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up inner and outer formwork and tensioning components, the tensioning components improve the connection stability between the outer and inner formwork during the reinforcement of the outer wall, making the outer and inner formwork support the outer wall more stably, reducing the steps of demolishing part of the outer wall, and reducing the occurrence of damage to the outer wall during the repair and reinforcement process; 2. By setting up stabilizing components, the connection stability between the outer formwork and the outer side of the outer wall is improved, thereby enhancing the reinforcement capacity of the outer formwork to the outer wall; 3. By setting up support rods and plug-in columns, the support rods and plug-in columns provide support for the inner formwork, so that the inner formwork can be more stably reinforced on the inner side of the outer wall, thereby improving the reinforcement capacity of the inner formwork on the outer wall. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle; Figure 3 yes Figure 1 Enlarged structural diagram of section B in the middle; Figure 4 This is a structural schematic diagram illustrating the positional relationship between the positioning plate and the outer template in an embodiment of this application; Figure 5 yes Figure 4 Enlarged structural diagram of section C; Figure 6 yes Figure 1 Enlarged structural diagram of section D in the middle; Figure 7 yes Figure 1 Enlarged structural diagram of section E; Figure 8 This is a structural schematic diagram illustrating the positional relationship between the drive component and the plug-in pin in an embodiment of this application; Figure 9 This is a structural schematic diagram illustrating the positional relationship between the outer template and the support components in an embodiment of this application; Figure 10 This is a structural schematic diagram illustrating the positional relationship between the support component and the mounting rod in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Outer template; 11. Tensioning hole; 12. Tensioning groove; 13. Stabilizing cavity; 14. Mounting hole; 141. Mounting rod; 15. Support assembly; 151. Support box; 1511. First support hole; 1512. Relief cavity; 1513. Support shaft; 1514. Connecting piece; 1515. Torsion spring; 1516. Snap ring; 152. Support frame; 1521. Second support hole; 153. Support flexible plate; 1 54. Corrugated steel plate; 2. Inner template; 21. Moving groove; 22. Adjusting hole; 23. Support rod; 231. Slide groove; 232. Sliding block; 233. Support column; 234. Telescopic column; 235. Telescopic rod; 236. Telescopic groove; 24. Support base; 25. Adjusting cavity; 251. Limiting groove; 252. Drive groove; 26. Slot; 27. Insertion post; 271. Third rack; 3. Tensioning assembly; 31. Tensioning post; 31 1. Connecting column; 312. First positioning groove; 313. Second positioning groove; 32. Positioning plate; 321. Connecting cylinder; 322. Clearance groove; 323. Positioning block; 324. First spring; 33. Adjusting rod; 4. Stabilizing assembly; 41. Stabilizing cylinder; 411. Limiting hole; 412. Second bevel gear; 42. Stabilizing column; 421. Limiting block; 43. Embedded plate; 5. Control assembly; 51. First rack; 52. First gear 53. First bevel gear; 6. Synchronization assembly; 61. First synchronous pulley; 62. Second synchronous pulley; 63. Synchronous belt; 7. Adjustment assembly; 71. Transmission wheel; 72. Adjustment wheel; 73. First bending plate; 74. Second bending plate; 8. Connecting assembly; 81. Connecting wheel; 82. Connecting plate; 83. First pull rope; 9. Drive assembly; 91. Drive block; 911. Second pull rope; 92. Second gear; 93. Second rack. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0028] This application discloses a device for repairing and reinforcing the exterior walls of old buildings. (Refer to...) Figure 1 and Figure 2A device for repairing and reinforcing the exterior walls of old buildings includes an outer formwork 1 and an inner formwork 2. The outer formwork 1 abuts against the outer side of the exterior wall, and the inner formwork 2 abuts against the inner side of the exterior wall. The inner formwork 2 is connected to the outer formwork 1 via a tensioning assembly 3. The tensioning assembly 3 includes a tensioning column 31, a positioning plate 32, and an adjusting rod 33. A moving groove 21 is provided on the side of the inner formwork 2 closest to the outer formwork 1, and the tensioning column 31 is slidably connected in the moving groove 21. An adjusting hole 22 is provided at the bottom of the moving groove 21, and the adjusting rod 33 is rotatably connected in the adjusting hole 22 and threadedly connected to the tensioning column 31. The positioning plate 32 is rotatably connected to the end of the tensioning column 31 away from the adjusting rod 33. A tensioning hole 11 is provided on the outer formwork 1, and a tensioning groove 12 communicating with the tensioning hole 11 is provided on the side of the outer formwork 1 away from the inner formwork 2. The axes of the tensioning hole 11 and the tensioning groove 12 are perpendicular.

[0029] When reinforcing the exterior walls of an old building, workers place the outer formwork 1 on the outside of the exterior wall and the inner formwork 2 on the inside, aligning the tensioning column 31 with the tensioning hole 11. The outer formwork 1 and inner formwork 2 are then brought into contact with the exterior wall, allowing the tensioning column 31 and positioning plate 32 to extend out of the tensioning hole 11. Workers then rotate the positioning plate 32 so that it aligns with the tensioning groove 12, and rotate the adjusting rod 33. Under the limiting and guiding action of the moving groove 21, the tensioning column 31 moves the positioning plate 32 towards the tensioning groove 12, locking the positioning plate 32 into the groove, thus completing the connection between the outer formwork 1 and the inner formwork 2. Simultaneously, under the action of the tensioning column 31 and positioning plate 32, the outer formwork 1 and inner formwork 2 can support and reinforce the exterior wall, reducing the need for partial demolition of the exterior wall, making the exterior wall less susceptible to damage during repair, and improving the safety of repairing and reinforcing the exterior walls of old buildings.

[0030] Reference Figure 2 and Figure 3 In order to improve the connection stability between the outer formwork 1 and the outer wall, the outer formwork 1 is provided with a stabilizing component 4. The tensioning column 31 is connected to the stabilizing component 4 through the control component 5. When the positioning plate 32 moves toward the tensioning groove 12, the tensioning column 31 drives the control component 5 to control the stabilizing component 4 to insert into the outer wall.

[0031] The stabilizing component 4 includes a stabilizing cylinder 41, a stabilizing column 42, and an embedded plate 43. A stabilizing cavity 13 is formed in the outer template 1. The stabilizing cylinder 41 is rotatably connected to the stabilizing cavity 13, and the stabilizing column 42 can slide along the axial direction of the stabilizing cylinder 41. A limiting block 421 is fixed on the stabilizing column 42, and a limiting hole 411 is formed on the inner wall of the stabilizing cylinder 41 along its own axial direction. The limiting block 421 is slidably connected in the limiting hole 411. The embedded plate 43 is located on the outer side of the outer wall. The control component 5 drives the stabilizing cylinder 41 to rotate and controls the threaded connection between the stabilizing column 42 and the embedded plate 43.

[0032] Reference Figure 2 and Figure 3 The control component 5 includes a first rack 51, a first gear 52, and a first bevel gear 53. The first rack 51 is mounted on the tensioning column 31. The first gear 52 is rotatably connected in the stabilizing cavity 13. The first gear 52 extends into the tensioning hole 11 and meshes with the first rack 51. The first bevel gear 53 is coaxially connected with the first gear 52. A second bevel gear 412 is sleeved on the stabilizing cylinder 41 and meshes with the first bevel gear 53.

[0033] During the process of the positioning plate 32 and the tensioning column 31 extending out of the tensioning hole 11, the tensioning column 31 drives the first rack 51 to move, the first rack 51 drives the first bevel gear 53 to rotate, and the first bevel gear 53 drives the second bevel gear 412 to rotate, thereby controlling the rotation of the stabilizing sleeve. At this time, since the rotation direction of the stabilizing column 42 is opposite to the thread direction of the embedded plate 43, the stabilizing column 42 will not be inserted into the embedded plate 43. During the process of the tensioning column 31 controlling the positioning plate 32 to move toward the tensioning groove 12, the tensioning column 31 moves in the opposite direction and drives the first rack 51 to move in the opposite direction. The first rack 51 can then sequentially drive the first bevel gear 53 and the second bevel gear 412 to rotate in the opposite direction. The second bevel gear 412 then drives the stabilizing cylinder 41 and the stabilizing column 42 to rotate in opposite directions, so that the stabilizing column 42 matches the thread direction of the embedded plate 43. At the same time, under the guidance of the limiting block 421 and the limiting hole 411, the stabilizing cylinder 41 rotates so that the stabilizing column 42 gradually connects with the embedded plate 43, so that the stabilizing column 42 is inserted into the embedded plate 43, completing the fixation between the outer formwork 1 and the outer side of the outer wall, thereby improving the support and reinforcement effect of the outer formwork 1 on the outer side of the outer wall.

[0034] Reference Figure 4 and Figure 5 To improve the stability of the positioning plate 32 during movement, a connecting cylinder 321 is fixed to the side of the positioning plate 32 near the tensioning column 31, and a connecting column 311 is fixed to the side of the tensioning column 31 near the positioning plate 32. The connecting column 311 is rotatably connected to the inner wall of the connecting cylinder 321. A clearance groove 322 is provided on the inner wall of the connecting cylinder 321, and a positioning block 323 is slidably connected in the clearance groove 322. A first spring 324 is provided in the clearance groove 322, with one end fixed to the bottom of the clearance groove 322 and the other end fixed to the positioning block 323. A first positioning groove 312 and a second positioning groove 313 are provided on the connecting column 311. When the positioning plate 32 passes through the tensioning hole 11, the positioning block 323 is located in the first positioning groove 312. When the positioning plate 32 moves toward the bottom of the tensioning groove 12, the positioning block 323 is located in the second positioning groove 313.

[0035] During the process of the positioning plate 32 extending out of the tension hole 11, the positioning block 323 is located in the first positioning groove 312 to limit the positioning plate 32, making it difficult for the positioning plate 32 to rotate during movement. After the positioning plate 32 extends out of the tension hole 11, the worker rotates the positioning plate 32, which drives the connecting cylinder 321 to rotate. The connecting cylinder 321 then drives the positioning block 323 to rotate, causing the positioning block 323 to separate from the first positioning groove 312. At this time, the first spring 324 is in a compressed state. When the positioning block 323 rotates to be opposite the second positioning groove 313, under the action of the rebound force of the first spring 324, the positioning block 323 is engaged in the second positioning groove 313, thus completing the adjustment of the positioning plate 32. At the same time, under the limiting action of the positioning block 323 and the second positioning groove 313, the positioning plate 32 is not easy to rotate during the movement towards the tension groove 12. Furthermore, to facilitate the movement of the positioning block 323, the end of the positioning block 323 is designed to be arc-shaped, so that the worker can rotate the positioning plate 32 more quickly.

[0036] Reference Figure 1 In order to improve the connection stability between the outer template 1 and the inner template 2, the tensioning components 3 are set in two groups and located on the long side of the inner template 2. In order to facilitate the synchronous control of the two groups of tensioning components 3, the adjusting rods 33 of the two adjacent groups of tensioning components 3 are connected through the synchronization component 6.

[0037] The synchronization assembly 6 includes a first synchronization pulley 61, a second synchronization pulley 62, and a synchronization belt 63. The first synchronization pulley 61 is coaxially fixed to the adjusting rod 33 of one set of tensioning assemblies 3, and the second synchronization pulley 62 is coaxially fixed to the adjusting rod 33 of another set of tensioning assemblies 3. The synchronization belt 63 is wound around the first synchronization pulley 61 and the second synchronization pulley 62. The first synchronization pulley 61 and the second synchronization pulley 62 are configured as synchronization belt pulleys 63, and the synchronization belt 63 is configured as a synchronous toothed belt.

[0038] When it is necessary to control the two sets of tensioning components 3 simultaneously, the worker rotates the adjusting rod 33 of one set of tensioning components 3. The adjusting rod 33 drives the corresponding first synchronous wheel 61 or the corresponding second synchronous wheel 62 to rotate, thereby driving the synchronous belt 63 and the adjacent first synchronous wheel 61 or the adjacent second synchronous wheel 62 to rotate synchronously, so as to control the adjusting rod 33 in the two sets of tensioning components 3 at the same time, so that the two sets of tensioning components 3 can start simultaneously and connect the outer template 1 and the inner template 2.

[0039] Reference Figure 1 and Figure 6 In order to improve the support and reinforcement capacity of the inner formwork 2 to the inner side of the outer wall, support rods 23 are rotatably connected to both short sides of the inner formwork 2. Support seats 24 are rotatably connected to the side of the support rods 23 away from the inner formwork 2. An adjustment component 7 for controlling the rotation of the support rods 23 is provided in the inner formwork 2. One end of the adjustment component 7 is engaged with the timing belt 63 and the other end is engaged with the support rods 23.

[0040] The adjusting assembly 7 includes a drive wheel 71, an adjusting wheel 72, a first bending plate 73, and a second bending plate 74. The drive wheel 71 meshes with the synchronous belt 63. An adjusting cavity 25 is provided in the inner template 2, and the rotation of the drive wheel 71 extends into the adjusting cavity 25 and is coaxially fixed with respect to the adjusting wheel 72. The first bending plate 73 and the second bending plate 74 are positioned opposite each other on the adjusting wheel 72, and are symmetrically arranged about the axis of the adjusting wheel 72. Each of the first bending plate 73 and the second bending plate 74 corresponds to a support rod 23, and both are connected to the corresponding support rod 23 via a connecting assembly 8.

[0041] Reference Figure 1 and Figure 7 The connecting assembly 8 includes a connecting wheel 81, a connecting plate 82, and a first pull rope 83. The connecting wheel 81 is rotatably connected to the adjusting cavity 25. A support rod 23 extends into the adjusting cavity 25, and a groove 231 is formed at one end of the support rod 23 in the adjusting cavity 25. A slider 232 is slidably connected in the groove 231. One end of the connecting plate 82 is ball-jointed to the slider 232, and the other end is fixed to one end of the first pull rope 83. The end of the first pull rope 83 away from the connecting plate 82 passes around the corresponding connecting wheel 81 and is fixed to the corresponding first bending plate 73 or the corresponding second bending plate 74. The length of the first pull rope 83 is constant.

[0042] When adjustment of the support rod 23 is required, the adjusting rod 33 rotates, driving the corresponding first synchronous pulley 61 or the corresponding second synchronous pulley 62 to rotate. The first synchronous pulley 61 or the second synchronous pulley 62 then drives the synchronous belt 63 to rotate, which in turn drives the transmission pulley 71 and the adjusting pulley 72 to rotate. The adjusting pulley 72 then drives the first bending plate 73 and the second bending plate 74 to rotate. The first bending plate 73 and the second bending plate 74 wind up the corresponding first pull rope 83, which drives the corresponding connecting pulley 81 to rotate. Under the action of the connecting pulley 81, the prestress inside the first pull rope 83 is increased, making the first pull rope 83 less prone to breakage during use. The first pull rope 83 pulls the connecting plate 82, which in turn pulls the slider 232, causing the slider 232 to move along the groove 231. The slider 232 then drives the end of the support rod 23 located in the adjustment cavity 25 to rotate away from the ground. At this time, the end of the support rod 23 located outside the adjustment cavity 25 can rotate towards the ground. When the support seat 24 abuts against the ground, the support rod 23 can support the inner template 2, so that the inner template 2 can abut against the inner side of the outer wall more stably, thereby improving the support and reinforcement capacity of the inner template 2 against the inner side of the outer wall.

[0043] Reference Figure 8To improve the applicability of the support rod 23, the support rod 23 includes a support column 233 and a telescopic column 234. The support column 233 is rotatably connected to the inner template 2 and extends into the adjustment cavity 25. The telescopic column 234 is located at the end of the support column 233 away from the inner template 2, and the support seat 24 is rotatably connected to the end of the telescopic column 234 away from the support column 233. A telescopic rod 235 is rotatably connected to the telescopic column 234. A telescopic groove 236 is formed along the length of the support column 233 near the telescopic column 234, and the telescopic column 234 is threadedly connected to the inner wall of the telescopic groove 236.

[0044] When the support rod 23 rotates to its limit position, the worker rotates the telescopic rod 235. Since the telescopic rod 235 is threadedly connected to the inner wall of the telescopic column 234 and the telescopic rod 235 is rotatably connected to the telescopic column 234, the telescopic rod 235 can partially extend out of the telescopic groove 236 when it rotates, and adjust the distance between the telescopic column 234 and the support column 233 so that the support seat 24 can be more stably abutted against the ground, thus providing convenience for the support rod 23 to support the inner template 2 as a whole.

[0045] Reference Figure 7 and Figure 8 The inner template 2 has a slot 26, and a plug-in post 27 is slidably connected in the slot 26. The adjustment cavity 25 is provided with a drive assembly 9 for controlling the movement of the plug-in post 27. One end of the drive assembly 9 is connected to one end of the support rod 23 located in the adjustment cavity 25, and the other end is engaged with the plug-in post 27.

[0046] The drive assembly 9 includes a drive block 91, a second gear 92, and a second rack 93. A limiting groove 251 is formed in the inner wall of the adjustment cavity 25, and the drive block 91 is slidably connected in the limiting groove 251. The drive block 91 is connected to one end of the support rod 23 located in the adjustment cavity 25 via a second pull rope 911. A drive groove 252 is formed in the inner template 2 to connect the limiting groove 251 and the slot 26, and the second gear 92 is rotatably connected in the drive groove 252. The second rack 93 is fixed to the drive block 91 and meshes with the second gear 92. A third rack 271 is fixed to the insertion post 27 and meshes with the second gear 92. The second pull rope 911 is an elastic rope.

[0047] During the rotation of the support rod 23, the support rod 23 pulls the second pull rope 911. Under the guidance of the limiting groove 251, the second pull rope 911 then drives the drive block 91 to move along the limiting groove 251. The drive block 91 then drives the second rack 93 to move, the second rack 93 then drives the second gear 92 to rotate, the second gear 92 drives the second rack 93 to move, and the second rack 93 drives the insertion post 27 to extend out of the slot 26 and insert into the ground to further support the inner template 2, making the inner curtain panel less prone to movement during use, thereby further improving the inner curtain panel's support and reinforcement capabilities for the external wall.

[0048] Reference Figure 9 and Figure 10 To facilitate construction of the exterior wall, the outer formwork 1 has mounting holes 14, and mounting rods 141 are installed in the mounting holes 14. Support components 15 for supporting the opening in the exterior wall are mounted on the mounting rods 141. The support components 15 include a support box 151 and a support frame 152, with the support frame 152 fixed to the support box 151. The support frame 152 extends to the opening in the exterior wall. A first support hole 1511 is provided on the support box 151, and a second support hole 1521 communicating with the first support hole 1511 is provided on the support frame 152. Supporting flexible plates 153 are provided in both the first and second support holes 1511, and corrugated steel plates 154 are mounted on the supporting flexible plates 153, with the corrugated steel plates 154 abutting against the opening in the exterior wall.

[0049] The support box 151 has a clearance cavity 1512, and a support shaft 1513 is rotatably connected to the clearance cavity 1512. A connecting piece 1514 is wound around the support shaft 1513, and a torsion spring 1515 is wound around the support shaft 1513. A retaining ring 1516 with a notch is provided at the end of the connecting piece 1514 away from the support box 151, and the retaining ring 1516 is engaged with the mounting rod 141.

[0050] When construction is required on the exterior wall, workers select a corrugated steel plate 154 that matches the size of the opening in the exterior wall, and then insert the supporting flexible plates 153 on the corrugated steel plate 154 into the first support holes 1511. When the size of the opening in the exterior wall is the same as the size of the corrugated steel plate 154, workers attach the notched retaining ring 1516 to the installation rod 141, and then pull the support box 151 so that the corrugated steel plate 154 is aligned with the opening in the exterior wall. Workers then insert the support frame 152 into the opening in the exterior wall, and control the movement of the supporting flexible plates 153 so that the second support hole 1521 at the extension of the corrugated steel plate 154 is in contact with the opening in the exterior wall, thus supporting the opening and preventing the opening from collapsing during construction.

[0051] The implementation principle of the exterior wall repair and reinforcement device for old buildings in this application embodiment is as follows: When repairing and reinforcing the exterior wall, the outer formwork 1 and the inner formwork 2 are connected by the tensioning component 3, which improves the connection stability between the outer formwork 1 and the inner curtain panel. At the same time, the stabilizing component 4 makes the outer formwork 1 more stably abut against the outer side of the exterior wall. The support rod 23 and the insert rod support the inner formwork 2, making the inner formwork 2 more stably abut against the inner side of the exterior wall, so as to complete the reinforcement steps of the exterior wall, reduce the steps of demolishing part of the wall, and make the exterior wall less likely to collapse during the repair process, thus improving the safety of repairing the exterior wall of old buildings.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for repairing and reinforcing the exterior walls of old buildings, characterized in that: The system includes an outer template (1) and an inner template (2). The outer template (1) abuts against the outer side of the exterior wall, and the inner template (2) abuts against the inner side of the exterior wall. The inner template (2) is connected to the outer template (1) via a tensioning assembly (3). The tensioning assembly (3) includes a tensioning column (31), a positioning plate (32), and an adjusting rod (33). A moving groove (21) is provided on the side of the inner template (2) near the outer template (1). The tensioning column (31) is slidably connected in the moving groove (21). An adjusting hole (22) is provided at the bottom of the moving groove (21). The adjusting rod (33) is rotatably connected in the adjusting hole (22). The adjusting rod (33) is connected to the tensioning column (31). The positioning plate (32) is rotatably connected to the end of the tensioning column (31) away from the adjusting rod (33). The outer template (1) is provided with a tensioning hole (11). The outer template (1) is provided with a tensioning groove (12) connected to the tensioning hole (11) on the side away from the inner template (2). The axes of the tensioning hole (11) and the tensioning groove (12) are perpendicular. The outer template (1) is provided with a stabilizing component (4). The tensioning column (31) is connected to the stabilizing component (4) through the control component (5). When the positioning plate (32) moves toward the tensioning groove (12), the tensioning column (31) drives the control component (5) to control the stabilizing component (4) to insert into the outer wall.

2. The device for repairing and reinforcing the exterior walls of old buildings according to claim 1, characterized in that: The stabilizing component (4) includes a stabilizing cylinder (41), a stabilizing column (42), and an embedded plate (43). The outer template (1) has a stabilizing cavity (13). The stabilizing cylinder (41) is rotatably connected in the stabilizing cavity (13). The stabilizing column (42) slides along the axial direction of the stabilizing cylinder (41). The stabilizing column (42) is provided with a limiting block (421). The inner wall of the stabilizing cylinder (41) has a limiting hole (411) along its own axial direction. The limiting block (421) is slidably connected in the limiting hole (411). The embedded plate (43) is set on the outer side of the outer wall. The control component (5) drives the stabilizing cylinder (41) to rotate and controls the stabilizing column (42) to be threadedly connected to the embedded plate (43).

3. The device for repairing and reinforcing the exterior walls of old buildings according to claim 2, characterized in that: The control component (5) includes a first rack (51), a first gear (52), and a first bevel gear (53). The first rack (51) is mounted on the tensioning column (31). The first gear (52) is rotatably connected in the stabilizing cavity (13). The first gear (52) extends into the tensioning hole (11) and meshes with the first rack (51). The first bevel gear (53) is coaxially connected with the first gear (52). A second bevel gear (412) is sleeved on the stabilizing cylinder (41), and the second bevel gear (412) meshes with the first bevel gear (53).

4. The device for repairing and reinforcing the exterior walls of old buildings according to claim 1, characterized in that: The positioning plate (32) has a connecting cylinder (321) on the side near the tensioning column (31), and the tensioning column (31) has a connecting column (311) on the side near the positioning plate (32). The connecting column (311) is rotatably connected to the inner wall of the connecting cylinder (321). The inner wall of the connecting cylinder (321) has a relief groove (322). A positioning block (323) is slidably connected in the relief groove (322). A first spring (324) is provided in the relief groove (322). One end of the connecting post (311) is connected to the bottom of the relief groove (322), and the other end is connected to the positioning block (323). The connecting post (311) is provided with a first positioning groove (312) and a second positioning groove (313). When the positioning plate (32) passes through the tensioning hole (11), the positioning block (323) is set in the first positioning groove (312). When the positioning plate (32) moves toward the bottom of the tensioning groove (12), the positioning block (323) is set in the second positioning groove (313).

5. The device for repairing and reinforcing the exterior walls of old buildings according to claim 4, characterized in that: The tensioning components (3) are configured in two sets and evenly arranged on the long side of the inner template (2). The two adjacent sets of tensioning components (3) are connected by a synchronization component (6). The synchronization component (6) includes a first synchronization wheel (61), a second synchronization wheel (62), and a synchronization belt (63). The first synchronization wheel (61) is coaxially connected to the adjusting rod (33) of one set of tensioning components (3), and the second synchronization wheel (62) is coaxially connected to the adjusting rod (33) of the other set of tensioning components (3). The synchronization belt (63) is wound around the first synchronization wheel (61) and the second synchronization wheel (62).

6. The device for repairing and reinforcing the exterior walls of old buildings according to claim 5, characterized in that: Support rods (23) are rotatably connected to both short sides of the inner template (2). A support seat (24) is rotatably connected to the side of the support rod (23) away from the inner template (2). An adjustment component (7) for controlling the rotation of the support rod (23) is provided in the inner template (2). One end of the adjustment component (7) is engaged with the timing belt (63), and the other end is engaged with the support rod (23).

7. The device for repairing and reinforcing the exterior walls of old buildings according to claim 6, characterized in that: The adjustment assembly (7) includes a drive wheel (71), an adjustment wheel (72), a first bending plate (73), and a second bending plate (74). The drive wheel (71) meshes with a synchronous belt (63). An adjustment cavity (25) is provided in the inner template (2). The shaft of the drive wheel (71) extends into the adjustment cavity (25) and is coaxially connected to the adjustment wheel (72). The first bending plate (73) and the second bending plate (74) are arranged opposite to each other on the adjustment wheel (72). The first bending plate (73) and the second bending plate (74) are symmetrically arranged about the axis of the adjustment wheel (72). The first bending plate (73) and the second bending plate (74) each correspond to a support rod (23). The support rod (23) extends into the adjustment cavity (25). The first bending plate (73) and the second bending plate (74) are connected to the corresponding support rod (23) through a connecting assembly (8).

8. The device for repairing and reinforcing the exterior walls of old buildings according to claim 7, characterized in that: The connecting assembly (8) includes a connecting wheel (81), a connecting plate (82), and a first pull rope (83). The connecting wheel (81) is rotatably connected in the adjusting cavity (25). The support rod (23) has a groove (231) at one end of the adjusting cavity (25). A slider (232) is slidably connected in the groove (231). One end of the connecting plate (82) is ball-jointed with the slider (232), and the other end is connected to one end of the first pull rope (83). The end of the first pull rope (83) away from the connecting plate (82) passes around the corresponding connecting wheel (81) and is connected to the corresponding first bending plate (73) or the corresponding second bending plate (74).

9. A device for repairing and reinforcing the exterior walls of old buildings according to claim 7, characterized in that: The inner template (2) has a slot (26) and a plug-in post (27) is slidably connected in the slot (26). The adjustment cavity (25) is provided with a drive assembly (9) for controlling the movement of the plug-in post (27). One end of the drive assembly (9) is connected to one end of the support rod (23) located in the adjustment cavity (25), and the other end is engaged with the plug-in post (27).

10. A device for repairing and reinforcing the exterior walls of old buildings according to claim 9, characterized in that: The drive assembly (9) includes a drive block (91), a second gear (92), and a second rack (93). The inner wall of the adjustment cavity (25) has a limiting groove (251). The drive block (91) is slidably connected in the limiting groove (251). The drive block (91) is connected to one end of the support rod (23) located in the adjustment cavity (25) via a second pull rope (911). The inner template (2) has a drive groove (252) for connecting the limiting groove (251) and the slot (26). The second gear (92) is rotatably connected in the drive groove (252). The second rack (93) is set on the drive block (91) and meshes with the second gear (92). The plug-in post (27) has a third rack (271) that meshes with the second gear (92).

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