Portable maintenance frame for housing construction maintenance

Abstract

The application relates to the technical field of building machinery, in particular to a portable maintenance frame for house building maintenance, which comprises a movable base, a mounting bottom plate is fixedly installed at the top of the movable base, an inclined base is fixedly installed at the top of the mounting bottom plate, a main shaft is rotationally connected between the side walls of the two ends of the inclined base, a main frame body is fixedly installed on the shaft body of the main shaft, a threaded drive motor is fixedly installed at the top of the main frame body, a threaded rod is fixedly installed at the output end of the threaded drive motor, the threaded rod is rotationally connected in a central groove of the main frame body, a threaded block is threadedly connected on the rod body of the threaded rod, a lifting plate is fixedly installed on the side wall of the threaded block, and a turnover base is fixedly installed on the side wall of the lifting plate. The device has the functions of vertical lifting and oblique pasting, simplifies the maintenance operation process, reduces the labor intensity, and greatly improves the maintenance construction efficiency of the special-shaped building wall.

Description

Technical Field

[0001] This invention relates to the field of construction machinery technology, specifically a portable repair rack for building maintenance. Background Technology

[0002] As urban construction levels continue to improve, architectural design is gradually shifting from prioritizing traditional functions to emphasizing both function and artistic form. Public cultural buildings such as art galleries and museums are increasingly adopting personalized facade designs, with wall structures breaking away from traditional vertical wall forms. Many now feature sloping, irregularly shaped walls at acute or obtuse angles to the horizontal plane, achieving unique visual effects. However, these sloping, irregularly shaped walls are prone to problems such as surface cracking, coating peeling, and leakage during long-term use, requiring regular localized maintenance. These non-standard walls place higher demands on maintenance equipment. Currently, maintenance scaffolds used in the building repair field are mainly designed for conventional vertical walls, with adjustment methods limited to vertical lifting. The work platform can only achieve vertical height changes and lacks the ability to compensate for the position of sloping walls. Therefore, when repairing sloping, irregularly shaped walls... When the wall working surface extends diagonally, after the maintenance frame is raised and lowered vertically, there will be a positional shift between the working platform and the wall working surface. After the staff completes the repair of a single area, if they want to continue working on the lower part of the same wall, they cannot work directly nearby. They need to adjust the height of the frame simultaneously, move the entire machine to the ground to complete the horizontal displacement, and then reposition, level, and lock the frame before they can continue working. The repeated moving, repositioning, and leveling of the entire machine is a lengthy and time-consuming process, which greatly reduces the efficiency of maintenance work. Multiple moving and relocation also increases the labor intensity on site, and the repeated disassembly and repositioning of the frame can also bring safety hazards of slippage and overturning. The original advantages of portable maintenance frames in terms of portability and flexibility cannot be utilized, and existing equipment is difficult to adapt to the maintenance conditions of irregular and inclined walls. Therefore, this invention provides a portable maintenance frame for building maintenance. Summary of the Invention

[0003] The purpose of this invention is to provide a portable repair rack for building maintenance, in order to solve the problems mentioned in the background art.

[0004] The technical solution of this invention is: a portable repair frame for building maintenance, comprising a movable base, a mounting plate fixedly installed on the top of the movable base, an inclined base fixedly installed on the top of the mounting plate, a main shaft rotatably connected between the two side walls of the inclined base, a main frame fixedly installed on the main shaft, a threaded drive motor fixedly installed on the top of the main frame, a threaded rod fixedly installed at the output end of the threaded drive motor, and the threaded rod rotatably connected to the central groove of the main frame, a threaded block threadedly connected to the threaded rod, a lifting plate fixedly installed on the side wall of the threaded block, and a tilting base fixedly installed on the side wall of the lifting plate. The rotating base has a movable block inside, and a maintenance frame is fixedly installed on the side wall of the movable block. This device has both vertical lifting and oblique application functions. It can meet the repair needs of conventional vertical walls, and through the adjustment of the worm gear angle and the combination of air pressure and gear linkage structure, it can quickly adapt to the construction conditions of different acute and obtuse angle inclined irregular walls. Unlike traditional maintenance frames, it does not require repeated moving of the whole machine and re-leveling and positioning. It can realize continuous application of inclined walls from top to bottom, simplifying the maintenance operation process, reducing the intensity of manual labor, greatly improving the efficiency of maintenance construction of irregular building walls, and giving full play to the flexible and convenient advantages of portable maintenance frames.

[0005] Preferably, a drive base is fixedly installed on the top of the mounting base, a main drive motor is fixedly installed on the top of the drive base, a worm gear is fixedly installed on the output end of the main drive motor, two side plates are fixedly installed on the top of the mounting base, and the worm gear is rotatably connected between the two side plates. A worm wheel that meshes with the worm gear is fixedly installed on the side wall of one end of the main shaft. When it is necessary to repair the inclined and irregularly shaped walls of buildings such as art galleries and museums, the adaptation adjustment can be completed through a dedicated angle adjustment and level calibration mechanism: First, start the main drive motor to drive the worm gear to rotate, and use the meshing transmission between the worm gear and the worm wheel to drive the worm wheel and the main shaft to rotate synchronously. Relying on the mechanical self-locking characteristics of the worm gear and worm wheel, it can be ensured that the main frame angle is kept stable after adjustment and throughout the subsequent operation, without any loosening or deviation.

[0006] Preferably, a driven gear ring is fixedly sleeved at the center of the main shaft, and a driven rack that meshes with the driven gear ring is slidably disposed on the bottom inner side of the inclined base. A square plate is fixedly installed on the side wall of the driven rack, and a push rod is fixedly installed on the side of the square plate away from the driven rack. A piston plate is fixedly installed on the side of the push rod away from the square plate. During the rotation of the main shaft, the driven gear ring is driven to rotate synchronously. The driven gear ring meshes with the driven rack, thereby pushing the driven rack to slide, and causing the square plate, push rod and piston plate to move synchronously.

[0007] Preferably, a main sleeve is fixedly installed on the top of the mounting base plate, and several auxiliary sleeves are fixedly installed in an array on the side wall of the main frame. An air supply pipe connects the main sleeve and the several auxiliary sleeves. A piston rod is slidably arranged in the inner cavity of each auxiliary sleeve, and a return spring is provided in the inner cavity of each auxiliary sleeve. Several return springs are respectively connected between the side wall of the corresponding piston rod and the side wall of the inner cavity of the corresponding auxiliary sleeve. A movable plate is fixedly installed between the several piston rods. Since the piston plate is slidably assembled inside the main sleeve, the movement of the piston plate will change the inner cavity volume of the main sleeve. The inner cavities of the main sleeve and the auxiliary sleeves are connected through the air supply pipe. Based on the principle of air pressure linkage, when the inner cavity volume of the main sleeve expands, the piston rod inside the auxiliary sleeve will simultaneously retract and slide into the inner cavity of the auxiliary sleeve, pulling the movable plate fixed between the multiple sets of piston rods to move towards the main frame.

[0008] Preferably, a limiting plate is slidably provided on the side wall of the movable plate, and two symmetrical limiting racks are fixedly installed on the side wall of the limiting plate. A top plate is fixedly installed on the top of the lifting plate, and the two limiting racks are slidably connected to the bottom of the top plate. Driven gears are fixedly installed on the side walls of the shafts at both ends of the movable block, and several driven gears mesh with the corresponding limiting racks. During the movement of the movable plate, the limiting plate and the limiting racks are moved synchronously. The limiting racks mesh with the driven gears to drive the driven gears, thereby driving the driven gears, the movable block and the maintenance frame to rotate and make fine adjustments as a whole. During the entire process of the main frame adjusting the angle according to the wall tilt angle, the maintenance frame can always be kept in a horizontal state through the coordinated cooperation of the pneumatic linkage structure and the gear and rack transmission structure, effectively ensuring the stability of the working posture and the convenience of operation for construction personnel. After completing the angle and level calibration, restart the threaded drive motor to drive the maintenance frame to make diagonal downward displacement adjustment along the main frame after tilt adjustment. This allows for continuous repair work to be completed by conforming to the working surface of the tilted wall. There is no need to repeatedly move the whole machine and reposition and level it, which greatly simplifies the maintenance operation process for irregular walls. At the same time, the vertical lifting adjustment structure and the tilt angle and level calibration adjustment structure are independent of each other and do not interfere with each other, effectively avoiding problems such as structural operation jamming and fault interference, and ensuring stable operation of the equipment under multiple working conditions.

[0009] Preferably, the bottom of the mobile base is fixedly equipped with several self-locking casters in an array, which facilitates the movement of the main body of the device.

[0010] Preferably, a protective cover is fixedly installed on the top of the mounting base plate, which can protect the corresponding structure.

[0011] This invention provides a portable repair rack for building maintenance, which, compared with the prior art, has the following improvements and advantages:

[0012] 1. This device combines vertical lifting and inclined application functions, meeting the repair needs of conventional vertical walls. Through worm gear and worm wheel angle adjustment combined with pneumatic and gear linkage structures, it can quickly adapt to construction conditions of irregularly shaped walls with different acute and obtuse angles. Unlike traditional repair scaffolds, it eliminates the need for repeated relocation and re-leveling, enabling continuous application of inclined walls from top to bottom. This simplifies the repair process, reduces manual labor intensity, and greatly improves the efficiency of repairing irregularly shaped building walls, fully leveraging the flexible and convenient advantages of portable repair scaffolds.

[0013] 2. The equipment employs a worm gear self-locking structure to ensure the positioning stability of the main frame after tilt adjustment, preventing frame angle deviation and swaying during operation. Simultaneously, a linkage calibration structure ensures the maintenance frame remains level during tilt adjustment, providing a stable working platform for personnel and avoiding safety hazards caused by unbalanced tilting postures. Furthermore, the vertical lifting adjustment and tilt level calibration mechanisms operate independently without interference, structurally preventing transmission jams and conflicts, effectively improving the equipment's reliability and service life. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the worm gear structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the repair frame structure of the present invention;

[0018] Figure 4 This is the present invention. Figure 3 Enlarged schematic diagram of part A;

[0019] Figure 5 This is a schematic diagram of the threaded rod structure of the present invention;

[0020] Figure 6 This is the present invention. Figure 5 Enlarged schematic diagram of section B structure;

[0021] Figure 7 This is a schematic diagram of the movable plate structure of the present invention;

[0022] Figure 8 This is the present invention. Figure 7 An enlarged schematic diagram of the C-section structure.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Movable base; 2. Mounting base plate; 3. Tilting base; 4. Main shaft; 5. Main frame; 6. Threaded drive motor; 7. Threaded rod; 8. Threaded block; 9. Lifting plate; 10. Tilting base; 11. Movable block; 12. Maintenance frame; 13. Drive base; 14. Main drive motor; 15. Worm gear; 16. Side plate; 17. Worm wheel; 18. Driven gear ring; 19. Driven rack; 20. Square plate; 21. Push rod; 22. Piston plate; 23. Main sleeve; 24. Auxiliary sleeve; 25. Air supply pipe; 26. Piston rod; 27. Return spring; 28. Movable plate; 29. ​​Limiting plate; 30. Limiting rack; 31. Top plate; 32. Driven gear; 33. Casters; 34. Protective cover. Detailed Implementation

[0025] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0026] This invention provides an improved portable repair rack for building maintenance. The technical solution of this invention is as follows:

[0027] like Figures 1-8 As shown, a portable repair frame for building maintenance includes a mobile base 1, a mounting base 2 fixedly mounted on the top of the mobile base 1, an inclined base 3 fixedly mounted on the top of the mounting base 2, a main shaft 4 rotatably connected between the two side walls of the inclined base 3, a main frame 5 fixedly mounted on the shaft of the main shaft 4, a threaded drive motor 6 fixedly mounted on the top of the main frame 5, a threaded rod 7 fixedly mounted on the output end of the threaded drive motor 6, and the threaded rod 7 rotatably connected to the central groove of the main frame 5, a threaded block 8 threadedly connected to the rod of the threaded rod 7, a lifting plate 9 fixedly mounted on the side wall of the threaded block 8, and a fixed... A rotating base 10 is installed, and a movable block 11 is rotatably connected inside the rotating base 10. A maintenance frame 12 is fixedly installed on the side wall of the movable block 11. When carrying out repair work on a conventional vertical wall, the entire maintenance frame is simply moved to the designated construction area. After the construction personnel enter the maintenance frame 12, they start the threaded drive motor 6, which drives the threaded block 8 to transmit power. In turn, the threaded block 8 drives the lifting plate 9, the rotating base 10, the movable block 11, and the maintenance frame 12 to move vertically up and down as a whole, so as to realize the flexible adjustment of the height of the maintenance frame 12 and thus complete the continuous repair work of the vertical wall from top to bottom.

[0028] Furthermore, a drive base 13 is fixedly mounted on the top of the mounting base 2, a main drive motor 14 is fixedly mounted on the top of the drive base 13, a worm gear 15 is fixedly mounted on the output end of the main drive motor 14, two side plates 16 are fixedly mounted on the top of the mounting base 2, and the worm gear 15 is rotatably connected between the two side plates 16. A worm wheel 17 that meshes with the worm gear 15 is fixedly mounted on the side wall of one end of the main shaft 4. When it is necessary to carry out repair work on the inclined irregular wall of buildings such as art galleries and museums, the adaptation adjustment can be completed through a dedicated angle adjustment and level calibration mechanism: first, start the main drive motor 14 to drive the worm gear 15 to rotate. The worm gear 15 and worm wheel 17 are meshed and driven to rotate synchronously, and the worm wheel 17 and the main shaft 4 are rotated synchronously. Relying on the mechanical self-locking characteristics of the worm gear 15 and worm wheel 17, the main frame 5 can maintain a stable state after angle adjustment and throughout the entire subsequent operation, without any loosening or deviation. A driven gear ring 18 is fixedly sleeved at the center of the main shaft 4. A driven rack 19, meshing with the driven gear ring 18, is slidably arranged on the bottom inner side of the inclined base 3. A square plate 20 is fixedly installed on the side wall of the driven rack 19. A push rod 21 is fixedly installed on the side of the square plate 20 away from the driven rack 19. The push rod 21 is located away from the square plate 20. A piston plate 22 is fixedly installed on one side. During the rotation of the main shaft 4, the driven gear ring 18 rotates synchronously. The driven gear ring 18 meshes with the driven rack 19, thereby pushing the driven rack 19 to slide, causing the square plate 20, push rod 21 and piston plate 22 to move synchronously. A main sleeve 23 is fixedly installed on the top of the mounting base plate 2. Several auxiliary sleeves 24 are fixedly installed in an array on the side wall of the main frame 5. An air supply pipe 25 connects the main sleeve 23 and the several auxiliary sleeves 24. A piston rod 26 is slidably installed in the inner cavity of each auxiliary sleeve 24. A return spring 27 is installed in the inner cavity of each auxiliary sleeve 24. Position springs 27 are respectively connected between the side wall of the corresponding piston rod 26 and the inner wall of the corresponding auxiliary sleeve 24. Movable plates 28 are fixedly installed between several piston rods 26. Since the piston plate 22 is slidably assembled inside the main sleeve 23, the movement of the piston plate 22 will change the inner volume of the main sleeve 23. The inner cavities of the main sleeve 23 and the auxiliary sleeve 24 are connected through the air supply pipe 25. Based on the principle of air pressure linkage, when the inner volume of the main sleeve 23 expands, the piston rods 26 inside the auxiliary sleeve 24 will simultaneously retract and slide into the inner cavity of the auxiliary sleeve 24, pulling the movable plates 28 fixed between multiple sets of piston rods 26 to move towards the main frame 5.A limit plate 29 is slidably installed on the side wall of the movable plate 28. Two symmetrical limit racks 30 are fixedly installed on the side wall of the limit plate 29. A top plate 31 is fixedly installed on the top of the lifting plate 9, and the two limit racks 30 are slidably connected to the bottom of the top plate 31. Driven gears 32 are fixedly installed on the side walls of the shafts at both ends of the movable block 11, and several driven gears 32 mesh with the corresponding limit racks 30. During the movement of the movable plate 28, the limit plate 29 and the limit racks 30 are moved synchronously. The limit racks 30 mesh with the driven gears 32 to drive the driven gears 32, the movable block 11 and the maintenance frame 12 to rotate and make fine adjustments as a whole. During the entire process of the main frame 5 adjusting the angle with the wall tilt, the maintenance frame 12 can always be kept in a horizontal state through the coordinated cooperation of the pneumatic linkage structure and the gear and rack transmission structure, which effectively ensures the stability of the working posture and the convenience of operation for the construction personnel. After completing the angle and level calibration, restarting the threaded drive motor 6 will drive the maintenance frame 12 to perform a diagonal, top-to-bottom displacement adjustment along the tilted main frame 5, conforming to the working surface of the tilted wall to complete continuous repair work. This eliminates the need for repeated machine relocation and repositioning, significantly simplifying the maintenance process for irregularly shaped walls. Furthermore, the vertical lifting adjustment structure is independent of the tilt angle and level calibration adjustment structures, effectively avoiding problems such as structural operational jamming and malfunction interference, ensuring stable operation of the equipment under multiple working conditions.

[0029] Furthermore, the bottom of the mobile base 1 is fixedly equipped with several self-locking casters 33, which facilitate the movement of the main body of the device; the top of the mounting base 2 is fixedly equipped with a protective cover 34, which can protect the corresponding structure.

[0030] Working principle: When repairing a conventional vertical wall, simply move the entire repair frame to the designated construction area. After the construction personnel enter the repair frame 12, they start the threaded drive motor 6, which drives the threaded block 8 to move vertically. The threaded block 8 then drives the lifting plate 9, the tilting base 10, the movable block 11, and the repair frame 12 to make vertical lifting movements, thereby flexibly adjusting the height of the repair frame 12 and completing the continuous repair work of the vertical wall from top to bottom.

[0031] When repairing the tilted, irregularly shaped walls of buildings such as art galleries and museums, a dedicated angle adjustment and leveling mechanism can be used for adaptation and adjustment. First, the main drive motor 14 is started to rotate the worm gear 15. The meshing transmission between the worm gear 15 and the worm wheel 17 drives the worm wheel 17 and the main shaft 4 to rotate synchronously. Relying on the mechanical self-locking characteristics of the worm gear 15 and worm wheel 17, the main frame 5 remains stable after angle adjustment and throughout the entire subsequent operation, without any loosening or deviation. During the rotation of the main shaft 4, the driven gear ring 18 rotates synchronously. The driven gear ring 18 meshes with the driven rack 19, which in turn pushes the driven rack 19 to slide, causing the square plate 20, push rod 21, and piston plate 22 to move synchronously. Since the piston plate 22 is slidably fitted inside the main sleeve 23, the movement of the piston plate 22 will change the position of the main sleeve 23. The inner cavity volume of the main sleeve 23 is 3, and the inner cavities of the main sleeve 23 and the auxiliary sleeve 24 are connected by an air supply pipe 25. Based on the principle of pneumatic linkage, when the inner cavity volume of the main sleeve 23 expands, the piston rod 26 inside the auxiliary sleeve 24 will simultaneously retract and slide into the inner cavity of the auxiliary sleeve 24, pulling the movable plate 28 fixed between multiple sets of piston rods 26 to move towards the main frame 5. During the movement of the movable plate 28, the limiting plate 29 and the limiting rack 30 are moved synchronously. The limiting rack 30 meshes with the driven gear 32, thereby driving the driven gear 32, the movable block 11 and the maintenance frame 12 to rotate and make fine adjustments as a whole. During the entire process of the main frame 5 adjusting the angle according to the wall tilt angle, through the coordinated cooperation of the pneumatic linkage structure and the gear and rack transmission structure, the maintenance frame 12 can always be kept in a horizontal state, effectively ensuring the stability of the working posture and the convenience of operation for construction personnel. After completing the angle and level calibration, the threaded drive motor 6 is restarted, which drives the maintenance frame 12 to make a diagonal downward displacement adjustment along the main frame 5 after the tilt adjustment. This allows it to fit the working surface of the tilted wall and complete continuous repair work without having to repeatedly move the whole machine and reposition and level it. This greatly simplifies the maintenance operation process for irregular walls. At the same time, the vertical lifting adjustment structure and the tilt angle and level calibration adjustment structure are independent of each other and do not interfere with each other, effectively avoiding problems such as structural operation jamming and fault interference, and ensuring stable operation of the equipment under multiple working conditions.

[0032] In actual use, this equipment can be adapted to the repair work of conventional vertical walls and irregular inclined walls. The angle adjustment, horizontal calibration, vertical lifting and tilting structures operate independently without interfering with each other, and the operation is highly stable.

[0033] The foregoing description enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable repair stand for building maintenance, comprising a mobile base (1), characterized in that: The mobile base (1) is fixedly mounted with a mounting base plate (2), the mounting base plate (2) is fixedly mounted with an inclined base (3), the inclined base (3) is rotatably connected between the two side walls of the two ends of the inclined base (3), the main frame (5) is fixedly mounted on the shaft of the main shaft (4), the main frame (5) is fixedly mounted with a threaded drive motor (6) at the top of the main frame (5), the output end of the threaded drive motor (6) is fixedly mounted with a threaded rod (7), and the threaded rod (7) is rotatably connected in the central groove of the main frame (5). The threaded rod (7) is threadedly connected with a threaded block (8), the side wall of the threaded block (8) is fixedly mounted with a lifting plate (9), the side wall of the lifting plate (9) is fixedly mounted with a flip base (10), the inside of the flip base (10) is rotatably connected with a movable block (11), and the side wall of the movable block (11) is fixedly mounted with a maintenance frame (12).

2. The portable repair rack for building maintenance according to claim 1, characterized in that: The mounting base (2) is fixedly mounted with a drive base (13), the drive base (13) is fixedly mounted with a main drive motor (14), the output end of the main drive motor (14) is fixedly mounted with a worm (15), the mounting base (2) is fixedly mounted with two side plates (16), and the worm (15) is rotatably connected between the two side plates (16). The main shaft (4) is fixedly mounted with a worm wheel (17) that meshes with the worm (15) on one side wall.

3. The portable repair rack for building maintenance according to claim 1, characterized in that: A driven gear ring (18) is fixedly sleeved at the center of the main shaft (4). A driven rack (19) that meshes with the driven gear ring (18) is slidably arranged on the bottom inner side of the inclined base (3). A square plate (20) is fixedly installed on the side wall of the driven rack (19). A push rod (21) is fixedly installed on the side of the square plate (20) away from the driven rack (19). A piston plate (22) is fixedly installed on the side of the push rod (21) away from the square plate (20).

4. The portable repair rack for building maintenance according to claim 1, characterized in that: The main sleeve (23) is fixedly installed on the top of the mounting base plate (2). Several auxiliary sleeves (24) are fixedly installed in an array on the side wall of the main frame (5). An air supply pipe (25) is connected between the main sleeve (23) and the several auxiliary sleeves (24). A piston rod (26) is slidably arranged in the inner cavity of each auxiliary sleeve (24). A return spring (27) is arranged in the inner cavity of each auxiliary sleeve (24). Several return springs (27) are respectively connected between the side wall of the corresponding piston rod (26) and the side wall of the inner cavity of the corresponding auxiliary sleeve (24). A movable plate (28) is fixedly installed between the several piston rods (26).

5. A portable repair rack for building maintenance according to claim 4, characterized in that: A limiting plate (29) is slidably provided on the side wall of the movable plate (28). Two symmetrical limiting racks (30) are fixedly installed on the side wall of the limiting plate (29). A top plate (31) is fixedly installed on the top of the lifting plate (9). Both limiting racks (30) are slidably connected to the bottom of the top plate (31). Driven gears (32) are fixedly installed on the side walls of the shafts at both ends of the movable block (11). Several driven gears (32) mesh with the corresponding limiting racks (30) respectively.

6. A portable repair rack for building maintenance according to claim 1, characterized in that: The bottom of the mobile base (1) is fixedly equipped with several self-locking casters (33).

7. A portable repair rack for building maintenance according to claim 1, characterized in that: A protective cover (34) is fixedly installed on the top of the mounting base plate (2).

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