Wall painting roller with anti-dripping structure

Abstract

This utility model discloses a wall painting roller with an anti-drip structure, belonging to the field of architectural painting tools. The roller includes a brush barrel, a support, and a main rod, and further includes an anti-drip structure. The anti-drip structure comprises a housing rotatably connected to the support, a collection groove fixed to the top of the housing, a threaded rod threadedly connected to the inside of the main rod, a smooth head fixed to the top of the threaded rod, and a torsion wheel rotatably disposed at the bottom of the main rod. The torsion wheel is fixedly connected to the bottom of the threaded rod, and the bottom of the housing has an inclined groove for the smooth head to slide against. When the torsion wheel is rotated, the threaded rod rises and falls within the main rod, and the smooth head slides along the inclined groove, causing the housing and collection groove to tilt. This utility model, through its anti-drip structure, allows for precise adjustment of the collection groove angle to closely adhere to the wall surface, efficiently collecting dripping paint and preventing contamination. Simultaneously, the spring-loaded pin-type snap-fit ​​structure enables quick assembly and disassembly of the brush barrel, making it an advanced, convenient, and practical design.

Description

Technical Field

[0001] This utility model relates to the field of building coating tools, and in particular to a wall painting roller with an anti-drip structure. Background Technology

[0002] Wall paint rollers are commonly used tools in architectural decoration and home renovation. However, existing wall paint rollers have a common technical problem, which is particularly prominent when working on high surfaces such as ceilings.

[0003] In existing wall painting rollers, during the rolling process, paint adhering to the brush can drip downwards along the roller's axis due to gravity. When workers are working at heights with their heads tilted back, this dripping paint not only contaminates the floor and furniture but also splatters onto the operator's body and face, seriously affecting the cleanliness of the work environment and the health and safety of the workers.

[0004] To address this issue, some simple tray-type anti-drip devices have emerged on the market, but these devices are typically rigid trays with a fixed angle. In actual painting operations, the contact angle between the roller and the wall or ceiling is constantly changing, and the tray cannot be flush against the wall to maintain proper roller rotation. This means that rigid trays only provide limited anti-drip effectiveness at a fixed angle, while at other angles, especially when painting at an angle, dripping paint still cannot be completely collected. Furthermore, the brush holders of existing rollers are consumables and need frequent replacement after damage, but many rollers use complex bolt or riveting connections, making replacement time-consuming and inconvenient.

[0005] Therefore, this utility model proposes a wall painting roller with an anti-drip structure to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of paint dripping and environmental pollution caused by existing wall painting rollers, as well as the cumbersome disassembly and assembly process and low replacement efficiency of the brush tube, this utility model aims to provide a wall painting roller with an improved structure that can effectively solve the above problems and has an anti-drip structure.

[0007] This utility model provides a wall painting roller with an anti-drip structure, including: a brush tube, a bracket, a main rod; and an anti-drip structure.

[0008] The main rod is fixedly connected to and passes through the bracket, and the leak-proof structure is installed at the top of the main rod, below the brush tube, and inside the ring formed by the bracket.

[0009] The leak-proof structure includes a housing rotatably connected to the bracket, a collection groove fixedly connected to the top of the housing, a threaded rod threadedly connected to the inside of the main rod, a smooth head fixedly connected to the top of the threaded rod, and a torsion wheel rotatably disposed at the bottom of the main rod. The torsion wheel is fixedly connected to the bottom of the threaded rod, and the bottom of the housing has an inclined groove for the smooth head to slide against.

[0010] The smooth head, the inclined groove, the threaded rod, the torsion wheel, and the housing are combined through a specific mechanical linkage: the operator drives the threaded rod to make a spiral lifting and lowering motion within the main rod by rotating the torsion wheel set at the bottom. The smooth head at the top of the threaded rod rises and falls accordingly and slides against the inclined groove at the bottom of the housing, converting the linear motion of the threaded rod into the rotation of the housing, and finally realizing the adjustable tilt angle of the collection tank fixed on the housing.

[0011] Preferably, the leak-proof structure further includes a fixing block, which is fixedly connected to the bracket, and the housing is rotatably connected to the bracket through the fixing block.

[0012] Preferably, the projected area of ​​the collection trough opening is larger than the horizontal projected area of ​​the brush tube.

[0013] Preferably, the top of the threaded rod extends through the top of the main rod, and the rounded head is fixedly connected to the portion of the threaded rod that extends out of the top of the main rod.

[0014] Preferably, the roller further includes a snap-fit ​​structure, which is fixedly connected to the bracket and used to detachably clamp the brush cylinder.

[0015] Preferably, the snap-fit ​​structure includes: a connecting block, which is fixedly connected to both sides of the brush cylinder; an opening groove, which is fixedly connected to the bracket and is used to accommodate the connecting block; a lever, which slides through the opening groove and can be inserted into or pulled out of the connecting block; and a spring, which is sleeved on the lever and is used to drive the lever to remain in the position of being inserted into the connecting block.

[0016] Preferably, the bottom of the opening slot has a circular groove; the buckle structure also includes a slider, which is fixedly connected to the lever and slidably disposed in the circular groove; and the spring elastically abuts against the slider.

[0017] Preferably, one end of the lever passes through the circular groove and is inserted into the connecting block, while the other end of the lever extends beyond the opening groove.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting up a leak-proof structure that is mechanically linked by a torsion wheel, a threaded rod, a smooth head and an inclined groove, the problem of paint dripping easily during wall painting, causing waste and environmental pollution, is solved. The technical effect is that the operator can accurately adjust the posture of the collection groove according to the painting angle, so that it is close to the wall, thereby efficiently collecting dripping paint and keeping the construction environment clean.

[0019] 2. In this utility model, by setting a buckle structure consisting of a lever, a spring, a slider and a connecting block, the problem of the cumbersome, time-consuming and laborious process of replacing the brush tube as a consumable in the prior art is solved. It achieves the technical effect of quick loading and unloading of the brush tube without the need for additional tools, simply by pulling the lever. The operation is extremely convenient and significantly improves work efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a wall painting roller with an anti-drip structure proposed in this utility model; Figure 2 This is a schematic diagram of the top of a wall painting roller with an anti-drip structure proposed in this utility model; Figure 3 This is a schematic diagram of the anti-drip structure of a wall painting roller with an anti-drip structure proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the snap-fit ​​structure of a wall painting roller with an anti-drip structure proposed in this utility model.

[0021] Legend: 1. Brush tube; 2. Support; 3. Main rod; 4. Torsion wheel; 5. Leak-proof structure; 501. Threaded rod; 502. Smooth head; 503. Inclined groove; 504. Housing; 505. Fixing block; 506. Collection groove; 6. Snap-fit ​​structure; 601. Toggle lever; 602. Circular groove; 603. Spring; 604. Slider; 605. Opening groove; 606. Connecting block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Please refer to Figures 1 to 4This utility model provides a wall painting roller with an anti-drip structure, which aims to solve the problems of paint dripping during wall painting and the cumbersome operation of replacing the brush tube in the prior art.

[0024] like Figure 1 and Figure 2 As shown, the wall paint roller with an anti-drip structure includes a brush tube 1 and a bracket 2 rotatably connected below the brush tube 1. The brush tube 1 is used to perform painting operations on the wall. The bracket 2 is triangularly distributed and serves as the supporting frame for the entire device, with a main rod 3 passing through its center. The main rod 3 is fixedly connected to the bracket 2 and serves as the main body for handheld operation.

[0025] The core technical solution of this utility model is the leak-proof structure 5, which is installed at the top of the main rod 3, below the brush cylinder 1, and inside the ring formed by the bracket 2. The leak-proof structure 5 is used to mechanically adjust its collection groove 506 to always be close to the painted wall surface to collect dripping paint. The leak-proof structure 5 includes a housing 504, a collection groove 506, a threaded rod 501, a smooth head 502, a slanted groove 503, and a torsion wheel 4 rotatably disposed at the bottom of the main rod 3.

[0026] The collection groove 506 is fixedly connected to the top of the housing 504. The size of the groove opening of the collection groove 506 is larger than the horizontal projected area of ​​the brush tube 1 to ensure that it can completely cover the area where paint may drip from the brush tube 1.

[0027] The threaded rod 501 is threadedly connected to the inside of the main rod 3. One bottom end of the threaded rod 501 is fixedly connected to the torsion wheel 4, and the top of the threaded rod 501 passes through the top end of the main rod 3 and is fixedly connected to a smooth head 502. The torsion wheel 4 is rotatably disposed at the bottom of the main rod 3, and the operator can make the threaded rod 501 achieve a spiral lifting and lowering movement inside the main rod 3 by twisting the torsion wheel 4.

[0028] The smooth head 502 is located at the bottom center of the housing 504. The bottom of the housing 504 has a sloping groove 503 for the smooth head 502 to slide against. The head of the smooth head 502 has low friction, allowing it to slide smoothly within the sloping groove 503. The lifting and lowering movement of the threaded rod 501, through the sliding contact of the smooth head 502, applies a pushing or contracting action to the sloping groove 503, thereby causing the housing 504 to rotate.

[0029] The housing 504 is fixedly connected to two sides by fixing blocks 505, which are in turn connected to the bracket 2. The housing 504 is rotatably connected to the bracket 2 through the fixing blocks 505, which provides rotational support for the entire leak-proof structure 5. Ultimately, when the torsion wheel 4 is twisted, the collection groove 506 can be aligned with the brush cylinder 1 and close to the wall to prevent paint from dripping.

[0030] To address the technical problems of cumbersome brush replacement and unstable connections, the core of this embodiment's technical solution lies in the fact that the wall painting roller with an anti-drip structure also includes a snap-fit ​​structure 6. Furthermore, this snap-fit ​​structure 6 forms a specific quick-release and connection relationship with the aforementioned brush roller 1 and bracket 2. Please refer to [the relevant documentation / reference]. Figure 4 The core structure is described in detail below: The snap-fit ​​structure 6 mainly includes connecting blocks 606 fixed to both sides of the brush cylinder 1, and an opening slot 605 and an internal locking assembly installed at the end of the bracket 2. The connecting blocks 606 are fixedly connected to the axial positions on both sides of the brush cylinder 1, serving as the docking interface for installing the brush cylinder 1. On the two arm ends of the bracket 2, corresponding opening slots 605 are installed. The opening size of the opening slot 605 is adapted to the outer contour of the connecting block 606, so that the opening slot 605 can perfectly enclose and accommodate the connecting block 606, thereby providing radial support for the brush cylinder 1. A circular groove 602 extends inward from the bottom of the opening slot 605, and a lever 601 for locking is installed in the circular groove 602. The lever 601 is a slender rod, with one end passing through the circular groove 602 and extending into the internal hole of the connecting block 606 to axially limit and fix the connecting block 606. The other end passes out of the circular groove 602 and extends to the outside of the opening groove 605, forming a toggle end for the operator to apply force. Meanwhile, to maintain the locked state of the lever 601, a spring 603 is installed inside the circular groove 602, surrounding the outer circumference of the lever 601. A slider 604 is fixedly connected to the section of the lever 601 located within the circular groove 602. The outer diameter of the slider 604 slides within the inner diameter of the circular groove 602, allowing the slider 604 to slide freely axially within the circular groove 602. One end of the spring 603 abuts against the inner wall of the circular groove 602, and the other end abuts against the slider 604. The spring 603 continuously pushes the slider 604, thereby driving the lever 601, which is fixed to the slider 604, to always remain extended and inserted towards the connecting block 606. This elastic pin-fit structure, consisting of the spring 603, the slider 604, and the lever 601, ensures that the connecting block 606 is firmly locked in the opening groove 605 during normal painting, preventing the brush tube 1 from falling off. When replacement is needed, only external force is required to pull the lever 601, causing the slider 604 to compress the spring 603, so that the lever 601 can be disengaged from the connecting block 606, and the brush tube 1 can be easily removed.

[0031] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, to make the rotatable connection of the housing 504 more stable, the leak-proof structure 5 further includes a fixing block 505, which is fixedly connected to the bracket 2. The housing 504 is rotatably connected to the bracket 2 through the fixing block 505, providing a fixed pivot for the tilting of the housing 504. In another preferred embodiment, the projected area of ​​the opening of the collection groove 506 is set to be larger than the horizontal projected area of ​​the brush cylinder 1, so as to fully cover the area below the brush cylinder 1 during the coating process. In a preferred embodiment, to achieve force transmission from the inside to the outside of the main rod 3, the top of the threaded rod 501 extends through the top of the main rod 3, and the smooth head 502 is fixedly connected to the portion of the threaded rod 501 that extends out of the top of the main rod 3. This structure allows the lifting and lowering motion of the threaded rod 501 inside the main rod 3 to be directly transmitted to the smooth head 502 located outside the main rod 3. In a preferred embodiment, in order to improve the overall structural stability, the bracket 2 includes a plurality of support arms arranged in a triangular pattern. One end of each support arm converges and connects to the main rod 3, while the other end extends outward and connects to the snap-fit ​​structure 6.

[0032] Working Principle: This device consists of a top-to-bottom connection and is used for wall painting. The top brush tube 1 is connected to the bracket 2 on both sides by a snap-fit ​​structure 6. When the user needs to replace the brush tube 1, simply pull the lever 601 of the snap-fit ​​structure 6 outward. The slider 604, fixed in the circular groove 602, compresses the spring 603 when pulled, causing the lever 601 to be pulled out of the connecting block 606, thus removing the brush tube 1 connected to the connecting block 606. This achieves quick installation and removal of the brush tube 1. When installing a new brush tube 1, align the connecting block 606 with the opening groove 605, and apply external force to the lever 601 again. The spring 603 is compressed, and after releasing the lever 601, the spring 603 returns, pushing the slider 604 back to its original position, causing the lever 601 to re-insert into the connecting block 606, completing the locking process.

[0033] During wall painting, as the brush holder 1 rolls, to prevent paint dripping, simply manually twist the torsion wheel 4 at the bottom of the main rod 3. The rotation of the torsion wheel 4 causes the threaded rod 501, which is fixed to it, to spiral up and down within the main rod 3. The rounded head 502, fixed to the top of the threaded rod 501, exerts a squeezing or contracting force on the inclined groove 503 at the bottom of the housing 504 due to the up and down movement of the threaded rod 501. The rounded head 502 slides and abuts within the inclined groove 503, causing the housing 504, which is rotatably connected to the bracket 2 via the fixing block 505, to tilt. The tilting of the housing 504 causes the collection groove 506 fixed to its top to rotate accordingly, allowing for precise adjustment of the angle of the collection groove 506. Its front end can then be close to the painted wall surface to catch and collect dripping paint, thus preventing paint dripping.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A wall painting roller with an anti-drip structure, comprising: Brush holder (1); Support (2); Main rod (3), the main rod (3) is fixedly connected to the bracket (2) and passes through the bracket (2); The roller is characterized in that it further includes: The leak-proof structure (5) includes a housing (504) rotatably connected to the bracket (2), a collection groove (506) fixedly connected to the top of the housing (504), a threaded rod (501) threadedly connected to the inside of the main rod (3), a rounded head (502) fixedly connected to the top of the threaded rod (501), and a torsion wheel (4) rotatably disposed at the bottom of the main rod (3). The torsion wheel (4) is fixedly connected to the bottom of the threaded rod (501), and the bottom of the housing (504) is provided with an inclined groove (503) for the rounded head (502) to slide against.

2. The wall painting roller with an anti-drip structure according to claim 1, characterized in that, The roller also includes a snap-fit ​​structure (6), which is fixedly connected to the bracket (2) and used to detachably clamp the brush cylinder (1).

3. The wall painting roller with an anti-drip structure according to claim 1, characterized in that, The leak-proof structure (5) also includes a fixing block (505), which is fixedly connected to the bracket (2), and the housing (504) is rotatably connected to the bracket (2) through the fixing block (505).

4. The wall painting roller with an anti-drip structure according to claim 1, characterized in that, The projected area of ​​the opening of the collection trough (506) is greater than the horizontal projected area of ​​the brush tube (1).

5. The wall painting roller with an anti-drip structure according to claim 1, characterized in that, The top of the threaded rod (501) extends through the top of the main rod (3), and the rounded head (502) is fixedly connected to the portion of the threaded rod (501) that extends out of the top of the main rod (3).

6. The wall painting roller with an anti-drip structure according to claim 2, characterized in that, The snap-fit ​​structure (6) includes: Connecting block (606), the connecting block (606) is fixedly connected to both sides of the brush cylinder (1); An opening groove (605) is fixedly connected to the bracket (2) and is used to accommodate the connecting block (606). A lever (601) is slidably inserted through the opening slot (605) and can be inserted into or pulled out of the connecting block (606); A spring (603) is sleeved on the lever (601) and is used to drive the lever (601) to remain in the position where it is inserted into the connecting block (606).

7. The wall painting roller with an anti-drip structure according to claim 6, characterized in that, The bottom of the opening groove (605) is provided with a circular groove (602). The buckle structure (6) also includes a slider (604). The slider (604) is fixedly connected to the lever (601) and slidably disposed in the circular groove (602). The spring (603) elastically abuts against the slider (604).

8. The wall painting roller with an anti-drip structure according to claim 7, characterized in that, One end of the lever (601) passes through the circular groove (602) and is inserted into the connecting block (606), while the other end of the lever (601) extends beyond the opening groove (605).

Images