A device for applying paint to the walls of resettlement houses

The wall painting device for resettlement houses, which uses an airbag structure to fix the brush cloth, solves the problems of resource waste and cumbersome operation of traditional painting tools, and achieves efficient and uniform paint application and lightweight operation.

CN224431925UActive Publication Date: 2026-06-30CHINA OVERSEAS CONSTR LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA OVERSEAS CONSTR LTD
Filing Date
2025-07-01
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional painting tools are wasteful of resources, cumbersome to operate, heavy, and lack flexibility, making them difficult to meet the needs of modern architectural decoration and posing safety hazards.

Method used

A paint application device for the walls of resettlement houses was designed. It uses an airbag structure to fix the brush cloth. The brush cloth is supported by the expansion of the airbag to fit the wall surface. The lightweight structure reduces operator fatigue. The brush cloth is fixed by the airbag and can be quickly replaced by deflating it.

Benefits of technology

It improves the uniformity of brushing, reduces missed areas and excessive paint layers, and its lightweight design reduces operator fatigue, making it suitable for long-term operation. The brush cloth is easy to replace, avoiding construction interruptions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the field of paint application technology, specifically a paint application device for the walls of a resettlement house. It includes a handle with a resetting pressure bar rotatably connected to its bottom. A cavity is formed inside the handle, and a third fitting tube is fixedly connected to the handle via a connecting tube, which communicates with the cavity. A fixing mechanism for securing the paint brush is fixedly installed between the handle and the third fitting tube. A removal mechanism for removing the paint brush is also fixedly installed on the outer wall of the third fitting tube. An air bladder inflates into a cylindrical shape to support the brush, elastically conforming to the wall surface to improve paint uniformity. Under pressure, the contact pressure is controlled through elastic feedback to prevent missed areas or excessively thick paint layers. The lightweight structure reduces operator fatigue, making it suitable for extended work. The brush is secured by the air bladder and can be quickly replaced by deflating it, requiring no tools and saving time and effort.
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Description

Technical Field

[0001] This utility model relates to the field of paint application technology, specifically a paint application device for the walls of resettlement houses. Background Technology

[0002] In the field of architectural decoration, wall painting is a basic construction step, and its efficiency and quality directly affect the project progress and the final decorative effect. Traditional painting tools mostly use disposable brush cloths or rollers, which have problems such as resource waste, high cost, and inconvenience of replacement. Disposable brush cloths are discarded after use, which not only generates a lot of construction waste, which is contrary to the concept of green construction, but also causes construction interruption due to frequent replacement of brush cloths, which seriously affects painting efficiency. Although traditional roller-type painting tools can be reused, the brush cloth and roller are fixedly connected, and tools are needed to disassemble them when replacing them, which is cumbersome. Especially when working at height or in narrow spaces, it is both time-consuming and labor-intensive, and poses safety hazards.

[0003] In addition, existing painting tools generally suffer from drawbacks such as heavy weight and poor flexibility. The combination of metal or hard plastic rollers and brush cloth results in a heavy overall weight, which can easily lead to worker fatigue during prolonged hand-held operation, reduce construction accuracy, and make it difficult for rigid tools to adhere to complex wall shapes (such as concave and convex decorative surfaces and inside and outside corners) when facing complex wall shapes, resulting in problems such as missed areas and uneven paint finish, which cannot meet the diverse decoration needs of modern architecture.

[0004] Therefore, it is necessary to develop a new type of painting device that addresses the pain points of traditional tools through innovative structural design, enabling convenient replacement of brush cloths, lightweight operation, and efficient construction, thereby promoting the green and intelligent upgrading of tools in the building decoration industry.

[0005] Chinese Patent (Authorization Announcement No. CN105709985A) discloses a wood strip painting device, including a horizontally placed wood strip support platform with a strip-shaped groove in the middle of the support platform. The width of the strip-shaped groove is greater than the diameter of the wood strip. A painting device is provided on one side of the support platform, and a pushing device for pushing the wood strip into the painting device is provided on the other side of the support platform. Compared with the prior art, this invention provides a simple painting device to address the problem of excessive paint waste during painting due to the small size of the wood strip. The painting process on the wood strip is completed by passing the wood strip through a paint-filled sponge. The paint-filled sponge is placed in a box to minimize the diffusion of paint into the surrounding air, thus saving materials and reducing pollution. Moreover, the invention is simple to operate, thus improving production efficiency.

[0006] The above solution simply pushes the paint evenly through a pushing device, but the overall load is heavy, which can cause shoulder pain and is very inconvenient to use. Therefore, we propose a paint application device for the walls of resettlement houses. Utility Model Content

[0007] The purpose of this utility model is to provide a paint application device for the walls of resettlement houses to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A wall painting device for resettlement housing includes a handle, a pressure handle with a reset function rotatably connected to the bottom of the handle, a cavity inside the handle, a third fitting tube fixedly connected to the handle via a connecting tube, the connecting tube communicating with the cavity, a fixing mechanism for fixing a paint brush cloth fixedly installed between the handle and the third fitting tube, and a removal mechanism for removing the paint brush cloth fixedly installed on the outer wall of the third fitting tube.

[0010] As a further aspect of this solution, the fixing mechanism includes a corrugated sleeve with a reset function. The corrugated sleeve is fixedly connected to the upper end of the pressure handle. The upper end of the corrugated sleeve is fixedly connected to a first mating pipe and an air storage box. The upper ends of the first mating pipe and the air storage box are both fixedly connected to two abutment posts. The inner wall of the first mating pipe is fixedly connected to a second mating block. The interior of the second mating block has multiple vent holes.

[0011] As a further aspect of this solution, the bottom of the second mating block is fixedly connected to a second blocking plate via a first elastic contraction rod. The upper end of the second blocking plate abuts against all the vent holes. The upper end of the corrugated sleeve is also fixedly connected to an air storage box. The inner wall of the air storage box is fixedly connected to a first mating block, and the outer wall of the first mating block is also provided with multiple vent holes.

[0012] As a further aspect of this solution, the upper end of the first mating block is fixedly connected to a first blocking plate via a second elastic retraction rod, the bottom of the first blocking plate abuts against the upper end of a nearby vent hole, the outer wall of the third mating tube is fixedly connected to a rubber sleeve via two rubber discs, the connecting tube communicates with one of the rubber discs, and the rubber disc communicates with the inside of the handle via a connecting tube.

[0013] As a further aspect of this solution, the extraction mechanism includes a connecting box, which is fixedly connected to the outer wall of the third mating tube. The connecting box and the rubber disc are fixedly connected through multiple fourth mating tubes. The inner wall of the connecting box is rotatably connected to a rotating block via a rotating shaft. The outer wall of the rotating block abuts against the inner wall of the connecting box. The connecting box is connected to a nearby rubber disc. An elastic contraction tube is fixedly connected to the end of the third mating tube away from the connecting box.

[0014] As a further aspect of this solution, a vent valve is fixedly installed at the end of the elastic contraction tube away from the third mating tube. Multiple connecting elastic telescopic arms are also fixedly connected to the end of the elastic contraction tube near the vent valve. A connecting arm is fixedly connected to the end of each connecting elastic telescopic arm away from the elastic contraction tube. An abutting elastic telescopic arm is fixedly connected to the end of the connecting arm away from the connecting elastic telescopic arm. The outer wall of the connecting arm abuts against the outer wall of the rubber sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When in use, the airbag inflates into a cylindrical shape to support the brush cloth, which elastically conforms to the wall surface to improve the uniformity of painting. When under pressure, the contact pressure is controlled by elastic feedback to avoid missed spots or excessive paint layers. The lightweight structure reduces operator fatigue and is suitable for long-term operation. The brush cloth is fixed by the airbag and can be quickly replaced by deflating it, without the need for tools, saving time and effort. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of a wall painting device for resettlement housing.

[0018] Figure 2 This is a disassembly diagram of a paint application device for the walls of a resettlement house.

[0019] Figure 3 This is a schematic diagram of a corrugated sleeve structure for a paint coating device on the walls of a resettlement house.

[0020] Figure 4 This is a schematic diagram of the internal structure of the gas storage box of a wall painting device for resettlement housing.

[0021] Figure 5 This is a schematic diagram of the position structure of a wall painting device for resettlement housing that abuts against an elastic telescopic arm.

[0022] In the diagram: 1. Handle; 2. Connecting pipe; 3. Third mating pipe; 4. Pressure handle; 5. Rubber sleeve; 6. Corrugated sleeve; 7. Elastic contraction pipe; 8. First mating pipe; 9. Connecting pipe; 10. Air storage box; 11. First blocking plate; 12. Connecting box; 13. Second blocking plate; 14. Fourth mating pipe; 15. Rotary handle; 16. Rotating block; 17. Abutting elastic telescopic arm; 18. Connecting arm; 19. Connecting elastic telescopic arm; 20. Rubber disc; 21. Air release valve; 22. Abutting post; 23. First mating block; 24. Second mating block; 101. Fixing mechanism; 201. Removal mechanism. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-2 As shown in the embodiment of this utility model, a wall painting device for a resettlement house includes a handle 1. A pressure handle 4 with a reset function is rotatably connected to the bottom of the handle 1. A first reset torsion spring is engaged between the pressure handle 4 and the handle 1. When the pressure handle 4 is pressed and rotated, the first reset torsion spring can drive the pressure handle 4 to reset and rotate. A cavity is opened inside the handle 1. A third matching pipe 3 is fixedly connected to the handle 1 through a connecting pipe 2. The connecting pipe 2 communicates with the inside of the cavity. A fixing mechanism 101 for fixing the paint brush is fixedly installed between the handle 1 and the third matching pipe 3. A removal mechanism 201 for removing the paint brush is also fixedly installed on the outer wall of the third matching pipe 3 to avoid directly removing the paint brush by hand.

[0025] Example 2: Please refer to Figures 2-5 As shown, the fixing mechanism 101 includes a corrugated sleeve 6 with a reset function. Two first springs (not shown) are fixedly connected inside the corrugated sleeve 6. The corrugated sleeve 6 is made of rubber, which has good corrosion resistance and high temperature resistance, and is durable. The corrugated sleeve 6 is fixedly connected to the upper end of the pressure handle 4. The upper end of the corrugated sleeve 6 is fixedly connected to the first mating pipe 8 and the air storage box 10. The upper ends of the first mating pipe 8 and the air storage box 10 are both fixedly connected to two abutment posts 22. The inner wall of the first mating pipe 8 is fixedly connected to the second mating block 24. The interior of the second mating block 24 has multiple vent holes, which are circumferentially distributed on the outer wall of the second mating block 24. The bottom of the second mating block 24 is fixedly connected to the second blocking plate 13 through the first elastic contraction rod. The upper end of the second blocking plate 13 abuts against all the vent holes.

[0026] The upper end of the corrugated sleeve 6 is also fixedly connected to the air storage box 10. The inner wall of the air storage box 10 is fixedly connected to the first mating round block 23. The outer wall of the first mating round block 23 is also provided with multiple vent holes. The upper end of the first mating round block 23 is fixedly connected to the first blocking plate 11 through the second elastic contraction rod. The first elastic contraction rod and the second elastic contraction rod are not shown in the figure. The bottom of the first blocking plate 11 abuts against the upper end of the adjacent vent hole. The outer wall of the third mating tube 3 is fixedly connected to the rubber sleeve 5 through two rubber round pieces 20. The connecting tube 2 is connected to one of the rubber round pieces 20. The rubber sleeve 5 and the rubber round piece 20 form a "cylinder". When the rubber sleeve 5 and the rubber round piece 20 are filled with gas, they will become cylindrical. The rubber sleeve 5 and the rubber round piece 20 are also made of rubber. The rubber round piece 20 is connected to the inside of the handle 1 through the connecting tube 9.

[0027] The extraction mechanism 201 includes a connecting box 12, which is fixedly connected to the outer wall of the third mating tube 3. The connecting box 12 and the rubber disc 20 are fixedly connected through multiple fourth mating tubes 14. The inner wall of the connecting box 12 is rotatably connected to a rotating block 16 via a rotating shaft. The outer wall of the rotating block 16 abuts against the inner wall of the connecting box 12. A handle 15 is fixedly connected to the end of the rotating block 16 away from the connecting box 12. The operator can rotate the rotating block 16 by turning the handle 15. The connecting box 12 is connected to a nearby rubber disc 20. An elastic contraction tube 7 is fixedly connected to the end of the third mating tube 3 away from the connecting box 12. The end of the elastic contraction tube 7 away from the third mating tube 3 is fixed. An air release valve 21 is installed. The end of the elastic contraction tube 7 near the air release valve 21 is also fixedly connected to multiple connecting elastic telescopic arms 19. The multiple connecting elastic telescopic arms 19 are circumferentially distributed on the outer wall of the elastic contraction tube 7. The end of each connecting elastic telescopic arm 19 away from the elastic contraction tube 7 is fixedly connected to a connecting arm 18. The thickness of the connecting arm 18 is two to three millimeters, and the thickness after it is fully contracted is two to three millimeters. The outer wall of each connecting arm 18 is provided with a weight reduction port. The end of the connecting arm 18 away from the connecting elastic telescopic arm 19 is fixedly connected to an abutting elastic telescopic arm 17. The outer wall of the connecting arm 18 abuts against the outer wall of the rubber sleeve 5.

[0028] The working principle of this utility model is as follows:

[0029] When using this utility model, the paint brush cloth is put on the outer wall of the rubber sleeve 5. Note that the paint brush cloth is copper sleeve shaped. This paint brush cloth is elastic, and the diameter after being stretched is larger than the diameter of the rubber disc 20, but not more than five millimeters. At this time, all the output ends of the abutting elastic telescopic arms 17 will abut against the inner wall of the paint brush cloth.

[0030] At this point, pressing the lever 4 and rotating it towards the grip 1 will cause the corrugated sleeve 6 to compress against the grip 1. The abutment post 22 will then first abut against the bottom of the grip 1 to prevent the first mating tube 8 from contacting the air reservoir 10 and the bottom of the grip 1, thus avoiding blockage. When the corrugated sleeve 6 contracts, the gas inside it will push open the first blocking plate 11, and the second blocking plate 13 will abut against the second mating block 24. At this time, the gas inside the corrugated sleeve 6 will enter the cavity inside the grip 1 through the air reservoir 10. Then, it enters the interior of the connecting tube 2, the rubber disc 20, and the rubber sleeve 5 through the cavity. When the pressure on the handle 4 is released, the handle 4 will return to its original position and rotate. The corrugated sleeve 6 will disengage from the handle 1. When the corrugated sleeve 6 returns to its original position, the first blocking plate 11 will abut against the upper end of the first mating block 23, and the second blocking plate 13 will disengage from the bottom of the second mating block 24. The corrugated sleeve 6 will perform an air intake action. The corrugated sleeve 6 will be squeezed repeatedly. At this time, the rubber sleeve 5 and all the rubber discs 20 will expand.

[0031] After expansion, it becomes cylindrical, supporting the brush cloth. At this time, the elastic telescopic arm 17 is compressed and contracted, making it ready for use. When the brush cloth is immersed in paint, it can be used for painting the exterior wall. Note that the connecting arm 18 and the elastic telescopic arm 17 are thin and do not affect use. When it is necessary to remove the brush cloth, simply turn the handle 15. The handle 15 drives the rotating block 16 to rotate. At this time, the gas inside the rubber disc 20 and the rubber sleeve 5 will enter the third mating tube 3. At this time, the elastic contraction tube 7 will extend, and the elastic contraction tube 7 will drive the connecting spring... The telescopic arm 19 and the connecting arm 18 move, and the connecting arm 18 drives the elastic telescopic arm 17 to move. The elastic telescopic arm 17 drives the brush to move, disengaging from the outer wall of the rubber sleeve 5. The brush can then be removed. All parts can be rinsed with water to clean them. The air release valve 21 is brought to the ground, and the gas inside the elastic contraction tube 7 and the third mating tube 3 is released. The rubber sleeve 5 and the rubber disc 20 are reset, and the elastic contraction tube 7 is also reset. After all the outer walls are reset, the rotating block 16 is reset, and the brush can be used again.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A device for applying paint to the walls of resettlement houses, comprising a handle (1), characterized in that, The bottom of the grip (1) is rotatably connected to a pressure handle (4) with a reset function. The grip (1) has a cavity inside. The grip (1) is fixedly connected to a third mating pipe (3) through a connecting pipe (2). The connecting pipe (2) communicates with the cavity. A fixing mechanism (101) for fixing the paint brush cloth is fixedly installed between the grip (1) and the third mating pipe (3). A removal mechanism (201) for removing the paint brush cloth is also fixedly installed on the outer wall of the third mating pipe (3).

2. The device for applying paint to the walls of resettlement houses according to claim 1, characterized in that, The fixing mechanism (101) includes a corrugated sleeve (6) with a reset function. The corrugated sleeve (6) is fixedly connected to the upper end of the pressure handle (4). The upper end of the corrugated sleeve (6) is fixedly connected to a first mating pipe (8) and an air storage box (10). The upper ends of the first mating pipe (8) and the air storage box (10) are both fixedly connected to two abutment posts (22). The inner wall of the first mating pipe (8) is fixedly connected to a second mating block (24). The interior of the second mating block (24) is provided with multiple ventilation holes.

3. The wall painting device for resettlement housing according to claim 2, characterized in that, The bottom of the second mating block (24) is fixedly connected to the second blocking plate (13) by the first elastic contraction rod. The upper end of the second blocking plate (13) abuts against all the vent holes. The upper end of the corrugated sleeve (6) is also fixedly connected to the air storage box (10). The inner wall of the air storage box (10) is fixedly connected to the first mating block (23). The outer wall of the first mating block (23) is also provided with multiple vent holes.

4. The wall painting device for resettlement housing according to claim 3, characterized in that, The upper end of the first mating block (23) is fixedly connected to the first blocking plate (11) by the second elastic retraction rod. The bottom of the first blocking plate (11) abuts against the upper end of the adjacent vent hole. The outer wall of the third mating tube (3) is fixedly connected to the rubber sleeve (5) by two rubber discs (20). The connecting tube (2) is connected to one of the rubber discs (20). The rubber disc (20) is connected to the inside of the handle (1) through the connecting tube (9).

5. A paint application device for the walls of resettlement houses according to claim 1, characterized in that, The extraction mechanism (201) includes a connecting box (12), which is fixedly connected to the outer wall of the third mating tube (3). The connecting box (12) and the rubber disc (20) are fixedly connected through multiple fourth mating tubes (14). The inner wall of the connecting box (12) is rotatably connected to a rotating block (16) via a rotating shaft. The outer wall of the rotating block (16) abuts against the inner wall of the connecting box (12). The connecting box (12) is connected to a nearby rubber disc (20). An elastic shrink tube (7) is fixedly connected to the end of the third mating tube (3) away from the connecting box (12).

6. A paint application device for the walls of resettlement houses according to claim 5, characterized in that, An air release valve (21) is fixedly installed at the end of the elastic contraction tube (7) away from the third mating tube (3). Multiple connecting elastic telescopic arms (19) are also fixedly connected at the end of the elastic contraction tube (7) near the air release valve (21). A connecting arm (18) is fixedly connected at the end of each connecting elastic telescopic arm (19) away from the elastic contraction tube (7). An abutting elastic telescopic arm (17) is fixedly connected at the end of the connecting arm (18) away from the connecting elastic telescopic arm (19). The outer wall of the connecting arm (18) abuts against the outer wall of the rubber sleeve (5).