Outer wall protection device for building transformation construction

Abstract

The utility model relates to the technical field of building construction, and provides a building transformation construction outer wall protection device which comprises a bottom plate, a first protection plate and a second protection plate, the top end of the first protection plate and the top end of the second protection plate are each provided with two driving threaded grooves, and the first protection plate and the second protection plate are each provided with two control ports. The bottom end of the first protection plate and the bottom end of the second protection plate are each provided with two driven threaded grooves, the interiors of the driving threaded grooves are in threaded connection with threaded connecting rods, the threaded connecting rods are provided with sliding control grooves, the control openings are rotationally connected with control rotating pieces, and the control rotating pieces are connected with sliding control blocks. The first protection plate and the second protection plate are each connected with two bearing plates, two first electric push rods are installed at the top end of the bottom plate, and the output ends of the first electric push rods are rotationally connected with a push plate, so that the first protection plate and the second protection plate are prevented from moving in the connecting process, and the purpose of improving the stability of the equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and specifically to an exterior wall protection device for building renovation construction. Background Art

[0002] When repairing ancient buildings, it is usually necessary to renovate and reinforce the outer walls of the ancient buildings. When renovating the outer walls of ancient buildings, outer wall protection devices are usually used. The existing outer wall protection devices are provided by setting support frames outside the outer walls of the ancient buildings to provide auxiliary support during construction. When installing the support frames, an assembly method is usually adopted. When assembling, the support frames and support plates are assembled through connection methods such as locks or bolts. However, due to the certain height of the outer walls of the buildings, the existing devices are usually assembled from bottom to top. The risk factor for assembling workers is high when working at high altitudes, and the installation is inconvenient.

[0003] After searching, China disclosed a patent publication number of CN116084737A on May 9, 2023, which is a kind of building renovation construction exterior wall protection device. It is roughly described as including a mounting base, a first hydraulic cylinder, a splicing mechanism and a lifting mechanism. The upper sides of the left and right parts of the mounting base are connected to the first hydraulic cylinder, and the splicing mechanism is provided on the telescopic end of the first hydraulic cylinder. The left and right parts of the mounting base are provided with a lifting mechanism. The present invention drives the fixed plate and the exterior wall protection plate to form a clamping position through the telescopic end of the electric push rod, and drives the exterior wall protection plate to move upward through the telescopic end of the multi-stage hydraulic cylinder, so that the staff can always stand on the ground to install the exterior wall protection plate, thereby improving the efficiency and safety of the installation of the exterior wall protection plate.

[0004] Although the above-mentioned prior art solution enables the staff to always stand on the ground to install the exterior wall protection panels, thereby improving the efficiency and safety of the installation of the exterior wall protection panels, when the device installs a new exterior wall protection panel, due to the setting of the clamping ring, it is necessary to leave a certain buffer space between the two exterior wall protection panels, and the two exterior wall protection panels are slowly pressed against each other during the installation process, thereby reducing the stability of the equipment during the installation process; and different numbers of reinforcement mechanisms need to be installed according to the number of exterior wall protection panels installed to improve the connection strength between the exterior wall protection panels and the supporting strength to the exterior wall, which is very troublesome and reduces work efficiency. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an exterior wall protection device for building renovation construction to solve the problem proposed in the background technology that the stability of the equipment is reduced during the installation process; and different numbers of reinforcement mechanisms need to be installed according to the number of installed exterior wall protection panels to improve the connection strength between the exterior wall protection panels and the supporting strength to the exterior wall, which is very troublesome and reduces work efficiency.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building renovation construction exterior wall protection device, including a base plate, including a first protection plate and a second protection plate, the tops of the first protection plate and the second protection plate are each provided with two matching active thread grooves, the first protection plate and the second protection plate are each provided with two control ports matching the active thread grooves, the bottoms of the first protection plate and the second protection plate are each provided with two passive thread grooves matching the active thread grooves, the internal threads of the active thread grooves are connected with threaded connecting rods, the threaded connecting rods are provided with sliding control grooves, the control ports are rotatably connected with a control rotating member, the inner side wall of the control rotating member is fixedly connected with a sliding control block matching the sliding control groove, the first protection plate and the second protection plate are fixedly connected with two corresponding supporting plates at positions near the tops, the supporting plates are provided with anti-slip grooves, the top of the base plate is equipped with two corresponding first electric push rods, the output end of the first electric push rod is rotatably connected with a push plate matching the supporting plate, and the push plate is provided with an anti-slip block matching the anti-slip groove.

[0009] By adopting the above technical scheme, the pushing plate is rotated to align with the supporting plate, and the first electric push rod is started to drive the pushing plate and the anti-slip block to move, so that the anti-slip block is engaged with the anti-slip groove, so that the first electric push rod drives the supporting plate and the first protective plate to move, and prevents the pushing plate from separating from the supporting plate, thereby improving the stability of the equipment, so that the second protective plate is placed between the bottom plate and the first protective plate, so that the top of the second protective plate is close to the bottom of the first protective plate, and the rotating control member is rotated to drive the sliding control block to rotate, and the sliding control block cooperates with the sliding control groove to drive the threaded connecting rod to rotate, so that the threaded connecting rod moves along the active thread groove, so that one end of the threaded connecting rod is threadedly connected to the passive thread groove, so that the first protective plate and the second protective plate are connected, thereby preventing the first protective plate from moving during the connection process with the second protective plate, thereby achieving the purpose of improving the stability of the equipment, and repeating the above process can install multiple second protective plates under the second protective plate to adjust the protection height of the equipment.

[0010] Optionally, the top of the base plate is rotatably connected to two matching multi-stage hydraulic cylinders, the output ends of the multi-stage hydraulic cylinders are rotatably connected to the first protective plate, one side of the first protective plate and the second protective plate near the top are fixedly connected with a passive slide, one side of the first protective plate and the second protective plate near the bottom are fixedly connected with an active slide matching with the passive slide, the inside of the active slide is slidably connected with a reinforcing bar, the top of the reinforcing bar is fixedly connected with a clamping handle, and the active slide is provided with a borrowing slide groove matching with the clamping handle.

[0011] By adopting the above technical scheme, when the first electric push rod drives the first protective plate to move, the multi-stage hydraulic cylinder is started at the same time, so that the multi-stage hydraulic cylinder is adjusted with the height change of the first protective plate. The multi-stage hydraulic cylinder is used to support the first protective plate, so as to improve the supporting strength of the equipment to the outer wall. The reinforcing rod is rotated to drive the clamping handle to rotate, so that the clamping handle is rotated to the position of the borrowing slide groove, and the clamping handle slides along the borrowing slide groove, so that one end of the reinforcing rod passes through the active slide cylinder and is slidably connected with the passive slide cylinder, so as to improve the connection strength between the protective plates and avoid bending between the two protective plates, so as to more conveniently improve the connection strength between the external wall protection plates and the supporting strength of the external wall, so as to achieve the purpose of improving work efficiency.

[0012] Optionally, a positioning groove is provided on one side of the first protective plate and the second protective plate near the bottom end, a connecting plate matching the positioning groove is fixedly connected on one side of the first protective plate and the second protective plate near the top end, and a positioning block matching the positioning groove is provided at one end of the connecting plate.

[0013] By adopting the above technical solution, the positioning groove cooperates with the positioning block to keep the first protective plate and the second protective plate aligned when the first protective plate and the second protective plate are installed, thereby achieving the purpose of facilitating installation and improving work efficiency.

[0014] Optionally, a fixed block is fixedly connected to the top of the base plate, a second electric push rod is installed at one end of the fixed block, an output end of the second electric push rod is fixedly connected to a transverse connecting rod, both ends of the transverse connecting rod are fixedly connected to support members, and both ends of the support members are respectively close to the base plate and the second protective plate.

[0015] By adopting the above technical solution, the second electric push rod is started to drive the transverse connecting rod and the support member to move. The support member is used to support the second protective plate to improve the stability of the equipment.

[0016] Optionally, two limiting sliding grooves are provided on the bottom plate, and a limiting sliding block matching with the limiting sliding grooves is fixedly connected to the bottom end of the supporting member.

[0017] By adopting the above technical solution, the limiting slide groove cooperates with the limiting slider to limit the support member and avoid the support member from deflecting, thereby achieving the purpose of improving the stability of the equipment.

[0018] Optionally, ground nail holes are provided at the four corners of the base plate.

[0019] By adopting the above technical solution, the ground nail holes are used to drive ground nails, thereby improving the connection strength between the base plate and the ground, thereby achieving the purpose of improving the stability of the equipment.

[0020] Optionally, a blocking plate that cooperates with the second protective plate is fixedly connected to the top of the bottom plate.

[0021] By adopting the above technical solution, the blocking plate is used to prevent the bottom end of the second protective plate from separating from the bottom plate, which affects the protective effect of the equipment on the outer wall, thereby achieving the purpose of improving the stability of the equipment.

[0022] (III) Beneficial effects

[0023] In summary, the utility model includes at least one of the following beneficial technical effects:

[0024] 1. The exterior wall protection device of the building renovation construction, rotates the pushing plate to align with the supporting plate, starts the first electric push rod to drive the pushing plate and the anti-slip block to move, so that the anti-slip block is engaged with the anti-slip groove, so that the first electric push rod drives the supporting plate and the first protective plate to move, and prevents the pushing plate from separating from the supporting plate, thereby improving the stability of the equipment, so that the second protective plate is placed between the bottom plate and the first protective plate, so that the top of the second protective plate is close to the bottom end of the first protective plate, and the rotating control member drives the sliding control block to rotate, and the sliding control block cooperates with the sliding control groove to drive the threaded connecting rod to rotate, so that the threaded connecting rod moves along the active thread groove, so that one end of the threaded connecting rod is threadedly connected with the passive thread groove, so that the first protective plate and the second protective plate are connected, so as to prevent the first protective plate from moving during the connection process with the second protective plate, so as to achieve the purpose of improving the stability of the equipment, and repeating the above process can install multiple second protective plates under the second protective plate to adjust the protection height of the equipment.

[0025] 2. In the exterior wall protection device for the building renovation construction, when the first electric push rod drives the first protection plate to move, the multi-stage hydraulic cylinder is started at the same time, so that the multi-stage hydraulic cylinder is adjusted with the height change of the first protection plate. The multi-stage hydraulic cylinder is used to support the first protection plate, so as to improve the supporting strength of the equipment to the exterior wall. The reinforcing rod is rotated to drive the clamping handle to rotate, so that the clamping handle is rotated to the position of the borrowing slide groove, and the clamping handle slides along the borrowing slide groove, so that one end of the reinforcing rod passes through the active slide cylinder and is slidably connected with the passive slide cylinder, so as to improve the connection strength between the protection plates and avoid bending between the two protection plates, so as to more conveniently improve the connection strength between the exterior wall protection plates and the supporting strength of the exterior wall, so as to achieve the purpose of improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a first side structural schematic diagram of the utility model;

[0027] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 3 This is a schematic diagram of the first cross-sectional structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the second cross-sectional structure of the utility model.

[0030] In the figure: 1. bottom plate; 2. first protection plate; 3. second protection plate; 4. active thread groove; 5. passive thread groove; 6. threaded connecting rod; 7. sliding control groove; 8. control rotating member; 9. supporting plate; 10. anti-slip groove; 11. first electric push rod; 12. pushing plate; 13. anti-slip block; 14. multi-stage hydraulic cylinder; 15. passive slide; 16. active slide; 17. reinforcing bar; 18. clamping handle; 19. borrowing slide groove; 20. positioning groove; 21. connecting plate; 22. positioning block; 23. fixing block; 24. second electric push rod; 25. transverse connecting rod; 26. supporting member; 27. limiting slide groove; 28. ground nail hole; 29. ​​blocking plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] Embodiment 1

[0034] Reference Figure 1-Figure 3 , a building renovation construction exterior wall protection device, including a bottom plate 1, including a first protection plate 2 and a second protection plate 3, the tops of the first protection plate 2 and the second protection plate 3 are each provided with two matching active thread grooves 4, the first protection plate 2 and the second protection plate 3 are each provided with two control ports that match the active thread groove 4, the bottom ends of the first protection plate 2 and the second protection plate 3 are each provided with two passive thread grooves 5 that match the active thread groove 4, the internal threads of the active thread groove 4 are connected with a threaded connecting rod 6, the threaded connecting rod 6 is provided with a sliding control groove 7, the control port is rotatably connected with a control rotating member 8, the inner side wall of the control rotating member 8 is fixedly connected with a sliding control block that matches the sliding control groove 7, the first protection plate 2 and the second protection plate 3 are both fixedly connected with two corresponding supporting plates 9 near the top, the supporting plate 9 is provided with an anti-slip groove 10, the top of the bottom plate 1 is equipped with two corresponding first electric push rods 11, the output end of the first electric push rod 11 is rotatably connected with a push plate 12 that matches the supporting plate 9, and the push plate 12 is provided with a push plate that matches the anti-slip groove 10 The anti-slip block 13 is rotated, the pushing plate 12 is aligned with the supporting plate 9, and the first electric push rod 11 is started to drive the pushing plate 12 and the anti-slip block 13 to move, so that the anti-slip block 13 is engaged with the anti-slip groove 10, so that the first electric push rod 11 drives the supporting plate 9 and the first protective plate 2 to move, and the pushing plate 12 is prevented from being separated from the supporting plate 9, thereby improving the stability of the equipment, so that the second protective plate 3 is placed between the bottom plate 1 and the first protective plate 2, so that the top of the second protective plate 3 is close to the bottom end of the first protective plate 2, and the rotating control member 8 is rotated to drive the sliding control block to rotate, and the sliding control block cooperates with the sliding control groove 7 to drive the threaded connecting rod 6 to rotate, so that the threaded connecting rod 6 moves along the active thread groove 4, so that one end of the threaded connecting rod 6 is threadedly connected with the passive thread groove 5, so that the first protective plate 2 and the second protective plate 3 are connected, so as to avoid movement during the connection process of the first protective plate 2 and the second protective plate 3, so as to achieve the purpose of improving the stability of the equipment, and repeating the above process can install multiple second protective plates 3 below the second protective plate 3, so as to adjust the protection height of the equipment.

[0035] Embodiment 2

[0036] Reference Figure 1The top of the bottom plate 1 is rotatably connected to two matching multi-stage hydraulic cylinders 14, and the output end of the multi-stage hydraulic cylinder 14 is rotatably connected to the first protective plate 2. The first protective plate 2 and the second protective plate 3 are fixedly connected to a passive slide 15 near the top of one side, and the first protective plate 2 and the second protective plate 3 are fixedly connected to an active slide 16 matching the passive slide 15 near the bottom of one side. The active slide 16 is slidably connected to a reinforcing bar 17 inside, and a clamping handle 18 is fixedly connected to the top of the reinforcing bar 17. A borrowing slide groove 19 matching the clamping handle 18 is provided on the active slide 16. When the first electric push rod 11 drives the first protective plate 2 to move, the multi-stage hydraulic cylinder 14 is started at the same time. Cylinder 14, so that the multi-stage hydraulic cylinder 14 can be adjusted with the height change of the first protective plate 2, the multi-stage hydraulic cylinder 14 is used to support the first protective plate 2, so as to improve the supporting strength of the equipment to the outer wall, the reinforcing rod is rotated to drive the handle 18 to rotate, so that the handle 18 is rotated to the position of the borrowing slide groove 19, so that the handle 18 slides along the borrowing slide groove 19, so that one end of the reinforcing rod 17 passes through the active slide cylinder 16, and is slidably connected with the passive slide cylinder 15, so as to improve the connection strength between the protective plates and avoid bending between the two protective plates, so as to more conveniently improve the connection strength between the external wall protection plates and the supporting strength of the external wall, so as to achieve the purpose of improving work efficiency.

[0037] Reference Figure 1 and Figure 4 A positioning groove 20 is provided on one side of the first protective plate 2 and the second protective plate 3 near the bottom end, and a connecting plate 21 matching the positioning groove 20 is fixedly connected on one side of the first protective plate 2 and the second protective plate 3 near the top end. A positioning block 22 matching the positioning groove 20 is provided at one end of the connecting plate 21. The positioning groove 20 matches the positioning block 22 and is used to keep the first protective plate 2 and the second protective plate 3 aligned when the first protective plate 2 and the second protective plate 3 are installed, so as to facilitate installation and improve work efficiency.

[0038] Reference Figure 1 and Figure 3 A fixing block 23 is fixedly connected to the top of the base plate 1, and a second electric push rod 24 is installed at one end of the fixing block 23. A transverse connecting rod 25 is fixedly connected to the output end of the second electric push rod 24. Both ends of the transverse connecting rod 25 are fixedly connected to support members 26. The two ends of the support member 26 are respectively close to the base plate 1 and the second protective plate 3. Starting the second electric push rod 24 drives the transverse connecting rod 25 and the support member 26 to move. The support member 26 is used to support the second protective plate 3 to improve the stability of the equipment.

[0039] Reference Figure 1Two limiting slide grooves 27 are provided on the bottom plate 1, and a limiting slider matching the limiting slide groove 27 is fixedly connected to the bottom end of the support member 26. The limiting slide groove 27 matches the limiting slider to limit the support member 26 to prevent the support member 26 from being deflected, thereby achieving the purpose of improving the stability of the equipment.

[0040] Reference Figure 1 and Figure 3 The four corners of the bottom plate 1 are provided with ground nail holes 28, and the ground nail holes 28 are used to drive ground nails, so as to improve the connection strength between the bottom plate 1 and the ground, so as to achieve the purpose of improving the stability of the equipment.

[0041] Reference Figure 3 and Figure 4 The top of the bottom plate 1 is fixedly connected with a blocking plate 29 that cooperates with the second protective plate 3. The blocking plate 29 is used to prevent the bottom end of the second protective plate 3 from detaching from the bottom plate 1, which affects the protective effect of the equipment on the outer wall, thereby achieving the purpose of improving the stability of the equipment.

[0042] In summary, the working principle and working process of the exterior wall protection device for building renovation construction are as follows: when in use, first rotate the push plate 12 to align with the supporting plate 9, start the first electric push rod 11 to drive the push plate 12 and the anti-slip block 13 to move, so that the anti-slip block 13 is engaged with the anti-slip groove 10, so that the first electric push rod 11 drives the supporting plate 9 and the first protection plate 2 to move, and prevents the push plate 12 from separating from the supporting plate 9, so as to improve the stability of the equipment, so that the second protection plate 3 is placed between the bottom plate 1 and the first protection plate 2, so that the top of the second protection plate 3 is close to the bottom of the first protection plate 2, and the rotation control rotating member 8 drives the sliding control block to rotate, and the sliding control block cooperates with the sliding control groove 7 to drive The threaded connecting rod 6 rotates, so that the threaded connecting rod 6 moves along the active thread groove 4, so that one end of the threaded connecting rod 6 is threadedly connected to the passive thread groove 5, so that the first protective plate 2 and the second protective plate 3 are connected, so as to avoid movement during the connection process of the first protective plate 2 and the second protective plate 3, so as to achieve the purpose of improving the stability of the equipment. By repeating the above process, multiple second protective plates 3 can be installed under the second protective plate 3 to adjust the protection height of the equipment. When the first electric push rod 11 drives the first protective plate 2 to move, the multi-stage hydraulic cylinder 14 is started at the same time, so that the multi-stage hydraulic cylinder 14 is adjusted with the height change of the first protective plate 2. The multi-stage hydraulic cylinder 14 is used to adjust the height of the first protective plate 2. 2 is supported, so as to improve the supporting strength of the equipment to the external wall, and the reinforcing rod is rotated to drive the clamping handle 18 to rotate, so that the clamping handle 18 is rotated to the position of the borrowing slide groove 19, so that the clamping handle 18 slides along the borrowing slide groove 19, so that one end of the reinforcing rod 17 passes through the active slide cylinder 16 and is slidably connected with the passive slide cylinder 15, so as to improve the connection strength between the protection plates and avoid bending between the two protection plates, so as to more conveniently improve the connection strength between the external wall protection plates and the supporting strength to the external wall, so as to achieve the purpose of improving work efficiency, the positioning groove 20 cooperates with the positioning block 22, and is used to keep the first protection plate 2 and the second protection plate 3 when the first protection plate 2 and the second protection plate 3 are installed. Align, so as to facilitate installation and improve work efficiency, start the second electric push rod 24 to drive the horizontal connecting rod 25 and the support member 26 to move, the support member 26 is used to support the second protective plate 3 to improve the stability of the equipment, the limiting slide groove 27 cooperates with the limiting slider to limit the support member 26 to prevent the support member 26 from deflecting, so as to achieve the purpose of improving the stability of the equipment, the ground nail hole 28 is used to drive the ground nail, so as to increase the connection strength between the base plate 1 and the ground, so as to achieve the purpose of improving the stability of the equipment, the blocking plate 29 is used to prevent the bottom end of the second protective plate 3 from detaching from the base plate 1, resulting in affecting the protective effect of the equipment on the exterior wall, so as to achieve the purpose of improving the stability of the equipment.

[0043] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A building renovation construction exterior wall protection device, comprising a bottom plate (1), characterized in that: The invention comprises a first protective plate (2) and a second protective plate (3), wherein the top ends of the first protective plate (2) and the second protective plate (3) are each provided with two active thread grooves (4) that match each other, the first protective plate (2) and the second protective plate (3) are each provided with two control ports that match each other with the active thread grooves (4), the bottom ends of the first protective plate (2) and the second protective plate (3) are each provided with two passive thread grooves (5) that match each other with the active thread grooves (4), the internal threads of the active thread grooves (4) are connected with threaded connecting rods (6), the threaded connecting rods (6) are provided with sliding control grooves (7), the control ports are provided with a rotation control groove (8) that is provided with a rotation control groove (9) that is provided with a rotation control groove (10) that is provided with a rotation control groove (11) that is provided with a rotation control groove (12) that is provided with a rotation control groove (13) that is provided with a rotation control groove (14) that is provided with a rotation control groove (15) that is provided with a rotation control groove (16) that is provided with a rotation control groove (17) that is provided with a rotation control groove (18) that is provided with a rotation control groove (19) that is provided with a rotation control groove (11) that is provided with a rotation control groove (11) that is provided with a rotation control groove (12) that is provided with a rotation control groove (13) that is provided with a rotation control groove (14) that is provided with a rotation control groove (15) that is provided with a rotation control groove (16) that is provided with a rotation control groove (18) that is provided with a rotation control groove (19) that is provided with a rotation control groove (1 ... A control rotating member (8) is connected, and a sliding control block matching the sliding control groove (7) is fixedly connected to the inner side wall of the control rotating member (8); two corresponding supporting plates (9) are fixedly connected near the top ends of the first protection plate (2) and the second protection plate (3); the supporting plates (9) are provided with anti-slip grooves (10); two corresponding first electric push rods (11) are installed at the top end of the base plate (1); the output end of the first electric push rod (11) is rotatably connected to a push plate (12) matching the supporting plate (9); and the push plate (12) is provided with an anti-slip block (13) matching the anti-slip groove (10).

2. The exterior wall protection device for building renovation construction according to claim 1 is characterized by: The top of the base plate (1) is rotatably connected to two matching multi-stage hydraulic cylinders (14), and the output end of the multi-stage hydraulic cylinder (14) is rotatably connected to the first protective plate (2). A passive slide (15) is fixedly connected to one side of the first protective plate (2) and the second protective plate (3) near the top, and an active slide (16) matching the passive slide (15) is fixedly connected to one side of the first protective plate (2) and the second protective plate (3) near the bottom. The active slide (16) is slidably connected to a reinforcing bar (17) inside, and a clamping handle (18) is fixedly connected to the top of the reinforcing bar (17). A borrowing slide groove (19) matching the clamping handle (18) is provided on the active slide (16).

3. The exterior wall protection device for building renovation construction according to claim 1 is characterized by: A positioning groove (20) is provided on one side of the first protective plate (2) and the second protective plate (3) at a position close to the bottom end, and a connecting plate (21) matching the positioning groove (20) is fixedly connected on one side of the first protective plate (2) and the second protective plate (3) at a position close to the top end, and a positioning block (22) matching the positioning groove (20) is provided at one end of the connecting plate (21).

4. The exterior wall protection device for building renovation construction according to claim 1 is characterized by: A fixing block (23) is fixedly connected to the top of the bottom plate (1), a second electric push rod (24) is installed at one end of the fixing block (23), a transverse connecting rod (25) is fixedly connected to the output end of the second electric push rod (24), both ends of the transverse connecting rod (25) are fixedly connected to a support member (26), and both ends of the support member (26) are respectively close to the bottom plate (1) and the second protective plate (3).

5. The exterior wall protection device for building renovation construction according to claim 4 is characterized by: Two limiting sliding grooves (27) are provided on the bottom plate (1), and a limiting sliding block matching the limiting sliding grooves (27) is fixedly connected to the bottom end of the supporting member (26).

6. The exterior wall protection device for building renovation construction according to claim 1 is characterized by: Ground nail holes (28) are provided at the four corners of the bottom plate (1).

7. The exterior wall protection device for building renovation construction according to claim 1 is characterized by: A blocking plate (29) that matches the second protection plate (3) is fixedly connected to the top end of the bottom plate (1).

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