Exterior wall old paint layer polishing device for old community
By designing a screw-driven sanding device and a dust extraction component, the stability and safety issues of the exterior wall old paint layer sanding device were solved, achieving efficient and safe sanding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HUIFENG CONSTR ENG CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
Existing exterior wall old paint layer sanding equipment has poor stability during continuous operation at heights, consumes a lot of physical strength for operators, poses a risk of falling, and causes a large dust spread, affecting operational safety.
A sanding device including a transverse track was designed. The sanding disc is driven by a screw to move laterally on the outer wall to remove old paint. The device is equipped with a dust collection component and a dust cover to achieve centralized collection and storage of dust.
This technology improves the stability and safety of the polishing process, reduces the physical exertion of operators, avoids the risk of falls from heights, effectively controls dust spread, and enhances polishing efficiency and safety.
Smart Images

Figure CN224158168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wall surface processing equipment technology, and in particular to a device for sanding old paint layers on exterior walls of old residential communities. Background Technology
[0002] Compared to existing residential areas, older residential areas require the old paint layers to be sanded and polished again.
[0003] A search revealed a Chinese patent disclosure for a device for sanding old paint layers on exterior walls in old residential areas (authorization announcement number CN220094029U). This device includes a support base, a movable base, an electric drive unit, a sanding assembly, and a protective cover. The support base has lifting lugs at both ends for connection to hoisting equipment. The movable base is mounted on the support base and moves forward and backward. The electric drive unit is fixed to the support base and drives the movable base to move back and forth in the forward and backward direction. The sanding assembly includes a sanding motor, a mounting box, a sanding wheel mounted on the mounting box, and a transmission mechanism connecting the sanding motor and the sanding wheel. Both the sanding motor and the mounting box are fixed to the movable base. The protective cover is detachably connected to the outside of the mounting box and covers the sanding wheel. The end of the protective cover is flush with the surface of the sanding wheel facing away from the mounting box in the vertical direction. This patented technology solves the technical problems of low sanding efficiency and difficulty in ensuring worker safety in existing old paint layer sanding devices.
[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the above-mentioned exterior wall old paint layer sanding device integrates the sanding head and the telescopic rod device of the dust collection structure. Although it can collect dust, it still needs to be held manually throughout the process. The continuous operation has poor stability, the physical exertion of the operator leads to a decrease in the uniformity of sanding, and there is a risk of falling when operating manually. According to statistics, high-altitude fall accidents account for 47% of the total number of building accidents. Utility Model Content
[0005] In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to provide a device for sanding old paint layers on exterior walls of old residential areas.
[0006] The technical solution of this utility model is as follows: a device for sanding old paint layers on exterior walls of old residential areas, including a horizontal track, a screw rotatably connected inside the horizontal track, a mounting frame threadedly connected to the outside of the screw, the mounting frame slidably connected to the inner wall of the horizontal track, a take-up roller installed at the bottom of the mounting frame, a steel wire rope wound around the outside of the take-up roller, a sanding box provided at the bottom end of the steel wire rope, a dust cover fixedly connected to the outside of the sanding box, a drive motor b embedded inside the sanding box, and a sanding disc fixedly connected to the output shaft of the drive motor b.
[0007] By adopting the above technical solution, the rotation of the screw drives the grinding disc to move horizontally within the transverse track, which in turn drives the take-up roller and the grinding box to move, thereby achieving the purpose of horizontal grinding of the old paint layer on the exterior wall.
[0008] In a preferred embodiment, the interior of the polishing box is provided with a dust collection assembly, which includes a dust collection head fixedly connected to one side of the polishing box. A vacuum cleaner is fixedly installed inside the polishing box, and connecting pipes are fixedly connected to both sides of the vacuum cleaner.
[0009] By adopting the above technical solution and setting up a dust cover, the range of dust movement can be reduced, keeping it always within the dust cover.
[0010] In a preferred embodiment, the vacuuming assembly further includes a dust collection box installed at the bottom of the grinding box, a connecting pipe below the vacuum cleaner extending into the interior of the dust collection box, and a connecting pipe above the vacuum cleaner being fixedly connected to the vacuum head.
[0011] By adopting the above technical solution, the dust inside the dust cover can be sucked into the dust collection box for storage through the operation of the vacuum cleaner.
[0012] In a preferred embodiment, an installation assembly is provided on the outer side of the transverse track. The installation assembly includes installation plates that are fixedly connected to the outer side of the transverse track at equal intervals, and each installation plate is threaded with a fixing anchor rod.
[0013] By adopting the above technical solution, and through the combined use of mounting plates and fixed anchor rods, the transverse track can be firmly installed on the rooftop of the residential area.
[0014] In a preferred embodiment, both ends of the top of the grinding box are fixedly connected to lifting lugs, and the end of the wire rope away from the winding roller is connected to the lifting lugs.
[0015] By adopting the above technical solution, the installation of lifting lugs facilitates the connection between the wire rope and the grinding box.
[0016] In a preferred embodiment, the dust collection box is hinged to an opening and closing door on its outer side, and a handle is fixedly connected to the outer side of the opening and closing door.
[0017] By adopting the above technical solution and using the opening and closing door, it is convenient for staff to empty the dust in the dust collection box.
[0018] In a preferred embodiment, a drive motor a is fixedly installed on the outer side of the transverse track, and the output shaft of the drive motor a is fixedly connected to the screw.
[0019] By adopting the above technical solution and setting the drive motor a, a power source can be provided for the rotation of the screw.
[0020] In a preferred embodiment, a drive motor c is fixedly mounted on the bottom of the mounting frame, and the output shaft of the drive motor c is fixedly connected to the center of the take-up roller shaft.
[0021] By adopting the above technical solution, the rotation of the output shaft of the drive motor c can drive the winding roller to rotate, thereby realizing the unwinding and winding operations of the wire rope.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] 1. In this utility model, the rotation of the screw can drive the grinding disc to move horizontally within the transverse track, which in turn drives the take-up roller and the grinding box to move. This enables the grinding disc to achieve the purpose of horizontal grinding of the old paint layer on the outer wall. As the take-up roller unwinds, the grinding height of the grinding box can be adjusted, thereby enabling the grinding disc to achieve the purpose of vertical grinding of the old paint layer on the outer wall, thus expanding its grinding range. Moreover, the above structure completely avoids the risks of high-altitude manual operation and can ensure its high safety in use.
[0024] 2. In this utility model, by setting up a dust cover, the range of dust movement can be reduced, keeping it always inside the dust cover. By operating a vacuum cleaner, the dust inside the dust cover can be sucked into the dust collection box for storage, which is convenient for staff to empty later. Attached Figure Description
[0025] Figure 1 This utility model provides an overall perspective view of a device for sanding old paint layers on exterior walls in old residential areas;
[0026] Figure 2 This utility model provides a partial schematic diagram of a device for sanding old paint layers on exterior walls in old residential areas;
[0027] Figure 3 A half-sectional view of the grinding box of the present invention is provided for a grinding device for removing old paint layers on exterior walls in old residential areas.
[0028] Figure 4 This utility model provides a schematic diagram of the installation components for a device to sand old paint layers on exterior walls in old residential areas;
[0029] Figure 5 This utility model provides a schematic diagram of the dust collection box structure for a device to sand old paint layers on exterior walls in old residential areas.
[0030] Legend: 1. Horizontal track; 2. Drive motor a; 3. Mounting bracket; 4. Steel wire rope; 5. Grinding box; 6. Dust collection box; 7. Opening door; 8. Dust cover; 9. Grinding disc; 10. Drive motor b; 11. Lifting lug; 12. Dust suction head; 13. Vacuum cleaner; 14. Screw; 15. Mounting plate; 16. Fixed anchor bolt; 17. Drive motor c; 18. Take-up roller. Detailed Implementation
[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0032] Reference Figure 1-5 A device for sanding old paint layers on exterior walls of old residential communities includes a horizontal track 1. A screw 14 is rotatably connected inside the horizontal track 1. A mounting frame 3 is threadedly connected to the outer side of the screw 14. The mounting frame 3 is slidably connected to the inner wall of the horizontal track 1. A take-up roller 18 is installed at the bottom of the mounting frame 3. A steel wire rope 4 is wound around the outer side of the take-up roller 18. A sanding box 5 is installed at the bottom end of the steel wire rope 4. A dust cover 8 is fixedly connected to the outer side of the sanding box 5. A drive motor b10 is embedded inside the sanding box 5. A sanding disc 9 is fixedly connected to the output shaft of the drive motor b10. The device is used to sand old paint layers on exterior walls of old residential communities. When sanding the old paint layer on the exterior wall, the rotation of the screw 14 drives the sanding disc 9 to move horizontally within the transverse track 1, which in turn drives the take-up roller 18 and the sanding box 5 to move. This achieves the purpose of horizontal sanding of the old paint layer on the exterior wall by the sanding disc 9. As the take-up roller 18 unwinds, the sanding height of the sanding box 5 can be adjusted, thereby achieving the purpose of vertical sanding of the old paint layer on the exterior wall by the sanding disc 9. This increases the sanding range. Moreover, the above structure completely avoids the risks of high-altitude manual operation and ensures high safety in use.
[0033] Specifically, the grinding box 5 is equipped with a dust collection component, which includes a dust collection head 12 fixedly connected to one side of the grinding box 5. A vacuum cleaner 13 is fixedly installed inside the grinding box 5, and connecting pipes are fixedly connected to both sides of the vacuum cleaner 13. The dust cover 8 reduces the range of dust movement, keeping it within the dust cover 8. The dust collection component also includes a dust collection box 6 installed at the bottom of the grinding box 5. The connecting pipe below the vacuum cleaner 13 extends into the dust collection box 6. Through the operation of the vacuum cleaner 13, the dust in the dust cover 8 can be sucked into the dust collection box 6 for storage by the dust collection head 12, facilitating subsequent emptying by staff. The connecting pipe above the vacuum cleaner 13 is fixedly connected to the dust collection head 12. An installation component is provided on the outside of the horizontal track 1. The installation component includes mounting plates 15 fixedly connected at equal intervals to the outside of the horizontal track 1. Fixed anchor rods 16 are threadedly connected inside the mounting plates 15. Through the cooperation of the mounting plates 15 and the fixed anchor rods 16, the horizontal track 1 can be firmly installed on the rooftop of the community.
[0034] Specifically, both ends of the top of the grinding box 5 are fixedly connected to lifting lugs 11, and the end of the wire rope 4 away from the take-up roller 18 is connected to the lifting lugs 11. The lifting lugs 11 facilitate the connection between the wire rope 4 and the grinding box 5. The outside of the dust collection box 6 is hinged to an opening and closing door 7. The opening and closing door 7 facilitates the emptying of dust in the dust collection box 6 by the staff. A handle is fixedly connected to the outside of the opening and closing door 7. A drive motor a2 is fixedly installed on the outside of the transverse track 1. The output shaft of the drive motor a2 is fixedly connected to the screw 14. A drive motor c17 is fixedly installed at the bottom of the mounting frame 3. The rotation of the output shaft of the drive motor c17 can drive the take-up roller 18 to rotate, thereby realizing the unwinding and winding operation of the wire rope 4. The output shaft of the drive motor c17 is fixedly connected to the center of the roller shaft of the take-up roller 18.
[0035] Working principle: First, the transverse track 1 is hoisted onto the rooftop of the old residential area. Using the mounting plate 15 and fixing anchor rod 16, the transverse track 1 is firmly installed on the rooftop. Then, the first end of the wire rope 4 is connected to the lifting lug 11 on the grinding box 5, and the drive motor b10 is started. Simultaneously, the grinding box 5 is slowly lowered. Then, the drive motor a2 is started by the external controller, which drives the screw 14 to rotate, causing the grinding disc 9 to move horizontally within the transverse track 1. This, in turn, drives the take-up roller 18 and the grinding box 5 to move horizontally. The movement of the grinding disc 9 enables horizontal grinding of the old paint layer on the exterior wall. The rotation of the output shaft of the drive motor c17 drives the take-up roller 18 to unwind, and the grinding height of the grinding box 5 can be adjusted to achieve vertical grinding of the old paint layer on the exterior wall. The dust cover 8 reduces the range of dust movement, keeping it within the dust cover 8. The operation of the vacuum cleaner 13 allows the dust in the dust cover 8 to be sucked into the dust collection box 6 for storage by the vacuum head 12, facilitating subsequent emptying by the staff.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for sanding old paint layers on exterior walls of old residential communities, comprising a horizontal track (1), characterized in that: The transverse track (1) is internally connected to a screw (14), and the outer side of the screw (14) is threadedly connected to a mounting bracket (3). The mounting bracket (3) is slidably connected to the inner wall of the transverse track (1). A take-up roller (18) is installed at the bottom of the mounting bracket (3). A steel wire rope (4) is wound around the outer side of the take-up roller (18). A grinding box (5) is provided at the bottom end of the steel wire rope (4). A dust cover (8) is fixedly connected to the outer side of the grinding box (5). A drive motor b (10) is embedded inside the grinding box (5). A grinding disc (9) is fixedly connected to the output shaft of the drive motor b (10).
2. The device for sanding old paint layers on exterior walls of old residential areas according to claim 1, characterized in that: The grinding box (5) is equipped with a dust collection component, which includes a dust collection head (12) fixedly connected to one side of the grinding box (5). A vacuum cleaner (13) is fixedly installed inside the grinding box (5), and connecting pipes are fixedly connected to both sides of the vacuum cleaner (13).
3. The device for sanding old paint layers on exterior walls of old residential areas according to claim 2, characterized in that: The vacuuming assembly also includes a dust collection box (6) installed at the bottom of the grinding box (5), a connecting pipe below the vacuum cleaner (13) extending into the interior of the dust collection box (6), and a connecting pipe above the vacuum cleaner (13) being fixedly connected to the vacuum head (12).
4. The device for sanding old paint layers on exterior walls of old residential areas according to claim 1, characterized in that: An installation assembly is provided on the outside of the transverse track (1). The installation assembly includes an installation plate (15) that is fixedly connected at equal intervals to the outside of the transverse track (1). The inside of the installation plate (15) is threaded with a fixed anchor rod (16).
5. The device for sanding old paint layers on exterior walls of old residential areas according to claim 1, characterized in that: Both ends of the top of the grinding box (5) are fixedly connected to lifting lugs (11), and the end of the wire rope (4) away from the winding roller (18) is connected to the lifting lugs (11).
6. The device for sanding old paint layers on exterior walls of old residential areas according to claim 3, characterized in that: The dust collection box (6) is hinged to an opening and closing door (7) on the outside, and a handle is fixedly connected to the outside of the opening and closing door (7).
7. The device for sanding old paint layers on exterior walls of old residential areas according to claim 1, characterized in that: A drive motor a (2) is fixedly installed on the outer side of the transverse track (1), and the output shaft of the drive motor a (2) is fixedly connected to the screw (14).
8. The device for sanding old paint layers on exterior walls of old residential areas according to claim 1, characterized in that: The bottom of the mounting bracket (3) is fixedly mounted with a drive motor c (17), and the output shaft of the drive motor c (17) is fixedly connected to the center of the roller shaft of the take-up roller (18).
Citation Information
Patent Citations
Exterior wall old paint layer polishing device for old community
CN220094029U