Wall paint brush with adjustable bristle angle
By introducing a motor-driven threaded rod and worm gear mechanism into the paint brush, automatic adjustment of the brush bristle angle and automatic scraping of residual paint are achieved, solving the problem of brush bristle deformation affecting the painting effect and improving painting efficiency and brush life.
Patent Information
- Application Number
- CN202520293157.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The bristles of existing paintbrushes are prone to deformation and splitting due to solidified paint residue, which affects the painting effect and service life, leading to a decrease in work continuity and efficiency.
An adjustable brush with adjustable bristle angle was designed. The brush bristle angle is automatically adjusted and residual paint is automatically scraped off by a motor-driven threaded rod and worm gear mechanism. Combined with a detachable brush head structure, the brushing efficiency and brush life are improved.
It enables flexible adjustment of the bristle angle and automatic cleaning, improving painting efficiency and brush lifespan, and reducing the need for frequent brush handle angle adjustments.
Smart Images

Figure CN223845192U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to paint brush technical field especially adjustable wall paint brush of bristle angle. BACKGROUND
[0002] Wall paint brush is a kind of tool for painting on wall, it is usually composed of brush handle and brush head, and brush head part is attached with bristle, and it is painted on wall after dipping paint, to achieve the purpose of decoration and protection of wall, wall paint brush can help people evenly cover paint on wall, realize the painting of various colors and effects, to improve the aesthetic degree of indoor and outdoor environment.
[0003] The existing paint brush is damaged by paint residue and solidification when using, so that the bristle is easy to deform and fork, which affects the painting effect and brush life, and affects the continuity and efficiency of work UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides adjustable wall paint brush of bristle angle, aims at improving the problem that paint residue affects brush service life and work efficiency.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: adjustable wall paint brush of bristle angle, including connecting box, the left side fixed connection of connecting box has first motor, the output end fixed setting of first motor has screw rod, the right end of screw rod is rotatably connected with connecting box, the surface screw connection of screw rod has moving piece, the front and back sides of moving piece are all set with second sliding slot, the sliding connection of second sliding slot between two has sliding part, the front and back sides of connecting box are all set with first sliding slot, the sliding part slides between two first sliding slots, the bottom fixed connection of sliding part has scraper, the bottom of connecting box is provided with connecting piece, the inside of connecting piece is provided with adjusting assembly, and the adjusting assembly is used to adjust angle.
[0006] Preferably, the adjusting assembly includes a second motor, the second motor is fixedly connected between the inner wall of the connecting piece, the output end of the second motor is fixedly provided with a first worm, the top of the first worm is engagedly connected with a first worm wheel, the first worm wheel is rotatably connected between the connecting piece, and the top of the first worm wheel is fixedly connected with a rotating piece.
[0007] Preferably, the rotating piece top penetrates and extends to the top of the connecting piece, and the rotating piece top is fixedly connected between the connecting box.
[0008] Preferably, the top of the connecting box is fixedly connected with a fixing piece, and the top of the fixing piece is rotatably connected with a rotating piece.
[0009] Preferably, the rotating part bottom end is fixedly connected with a second worm gear, the second worm gear bottom end is rotationally connected with the connecting box, and the second worm gear front side is meshingly connected with a second worm.
[0010] Preferably, the second worm left end penetrates and extends to the right side of the connecting box, the second worm is rotationally connected with the connecting box, and the second worm left end is fixedly connected with a knob.
[0011] Preferably, the connecting box top is provided with a brush head, and the brush head bottom is provided with a fixing groove.
[0012] Preferably, the connecting part bottom is fixedly connected with a connecting rod, and the connecting rod bottom end is fixedly connected with a handle.
[0013] The utility model has the advantages of the following:
[0014] 1. In the utility model, the brush head is soaked in water, the first motor drives the threaded rod to rotate, the threaded rod drives the moving part to move when rotating, thereby driving the sliding part to slide in the first sliding groove and the second sliding groove, thereby realizing the driving of the top scraper to scrape off the residual paint on the brush head, and realizing the automatic cleaning of the brush head.
[0015] 2. In the utility model, the second motor drives the first worm to rotate, the first worm drives the first worm gear to rotate, thereby driving the top first worm gear and the rotating part to rotate, thereby adjusting the angle of the top brush head, the self-locking between the first worm gear and the first worm prevents the brush head from rotating in the use process, can easily paint each corner and different direction of the wall surface, need not frequently adjust the brush handle angle, improve the painting efficiency. DRAWINGS
[0016] Figure 1 The utility model discloses a wall paint brush with adjustable bristle angle, and relates to the technical field of wall paint brushes.
[0017] Figure 2 The utility model discloses a wall paint brush with adjustable bristle angle, and relates to the technical field of wall paint brushes.
[0018] Figure 3 The utility model discloses a wall paint brush with adjustable bristle angle, and relates to the technical field of wall paint brushes.
[0019] Figure 4 The utility model discloses a wall paint brush with adjustable bristle angle, and relates to the technical field of wall paint brushes.
[0020] Figure 5 The utility model discloses a wall paint brush with adjustable bristle angle, and relates to the technical field of wall paint brushes.
[0021] Legend:
[0022] 1, connecting box; 2, first sliding groove; 3, connecting piece; 4, first motor; 5, knob; 6, connecting rod; 7, brush head; 8, sliding piece; 9, second motor; 10, first worm; 11, first worm wheel; 12, rotating piece; 13, threaded rod; 14, moving piece; 15, second sliding groove; 16, fixed groove; 17, rotating piece; 18, fixed piece; 19, second worm; 20, second worm wheel; 21, handle; 22, scraper. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings of the utility model specification. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.
[0024] Referring to Figures 1-3 An embodiment provided by the utility model: adjustable wall paint brush of bristle angle, connecting box 1 is connected with first motor 4 on left side, first motor 4 output is fixedly provided with threaded rod 13, threaded rod 13 right end is rotatably connected between connecting box 1, threaded rod 13 surface is screw-connected with moving piece 14, and moving piece 14 front and back sides are all provided with second sliding groove 15, and sliding piece 8 is slidably connected between two second sliding grooves 15, and the bottom of sliding piece 8 is fixedly connected with scraper 22, and the bottom of connecting box 1 is provided with connecting piece 3, and connecting piece 3 is provided with adjusting assembly inside, and adjusting assembly is used to adjust angle.
[0025] Specifically, after use, the brush head 7 is soaked in water, the first motor 4 drives the threaded rod 13 to rotate, and the moving piece 14 is moved when the threaded rod 13 rotates, the second sliding groove 15 is a rectangular sliding groove, so that the sliding piece 8 can only slide up and down in the second sliding groove 15, so as to drive the sliding piece 8 to slide in the first sliding groove 2, so as to realize the scraping of the residual paint on the brush head 7 by the top scraper 22, so as to realize the automatic cleaning of the brush head 7, and the sliding piece 8 moves to both sides when painting, which does not affect the normal use of the paint brush.
[0026] Referring to Figure 2 and Figure 3The adjusting assembly comprises a second motor 9 fixedly connected between the inner wall of the connecting piece 3, a first worm 10 fixedly arranged at the output end of the second motor 9, a first worm wheel 11 engagedly connected to the top of the first worm 10, the first worm wheel 11 being rotatably connected between the connecting piece 3, and a rotating piece 12 fixedly connected to the top of the first worm wheel 11.
[0027] Specifically, the first worm 10 is driven by the second motor 9 to rotate, the first worm wheel 11 is driven by the first worm 10 to rotate, the first worm wheel 11 at the top and the rotating piece 12 are driven to rotate, and the angle of the brush head 7 at the top is adjusted.
[0028] With reference to Figure 3 , the rotating piece 12 extends through and beyond the top of the connecting piece 3, and the top of the rotating piece 12 is fixedly connected between the connecting box 1.
[0029] Specifically, the connecting box 1 and the brush head 7 at the top are driven by the rotating piece 12 to rotate, so that the angle of the brush head 7 at the top is quickly adjusted.
[0030] With reference to Figure 4 and Figure 5 , the connecting box 1 is fixedly connected with a fixing piece 18, and the fixing piece 18 is rotatably connected with a rotating piece 17 at the top.
[0031] Specifically, the brush head 7 at the top is quickly disassembled and assembled by rotating the rotating piece 17.
[0032] With reference to Figure 4 and Figure 5 , the rotating piece 17 is fixedly connected with a second worm wheel 20 at the bottom, the second worm wheel 20 is rotatably connected between the connecting box 1 at the bottom, and the second worm wheel 20 is engagedly connected with a second worm 19 at the front side.
[0033] Specifically, the second worm 19 is rotated to drive the second worm wheel 20 to rotate, so that the rotating piece 17 is driven to rotate.
[0034] With reference to Figure 4 and Figure 5 , the second worm 19 extends through and beyond the right side of the connecting box 1 at the left end, the second worm 19 is rotatably connected between the connecting box 1, and the second worm 19 is fixedly connected with a knob 5 at the left end.
[0035] Specifically, the second worm 19 is driven to rotate by rotating the knob 5, so that the second worm wheel 20 and the rotating piece 17 are driven to rotate.
[0036] With reference toFigure 3 The connecting box 1 is provided with a brush head 7 at the top, and a fixing groove 16 is formed at the bottom of the brush head 7.
[0037] Specifically, the brush head 7 is quickly fixed when the rotating member 17 rotates through the fixing groove 16 at the bottom of the brush head 7.
[0038] With reference to Figure 1 The connecting member 3 is fixedly connected with a connecting rod 6 at the bottom, and the connecting rod 6 is fixedly connected with a handle 21 at the bottom end.
[0039] Specifically, the whole is held up for use through the handle 21, so that the wall surface is painted.
[0040] Working principle: when the user uses, first, the whole is held up through the handle 21, and when painting, if the angle of the brush head 7 needs to be adjusted, the second motor 9 is started, the second motor 9 drives the first worm 10 to rotate, the first worm 10 drives the first worm wheel 11 to rotate, and then drives the rotating member 12 to rotate, the connecting box 1 and the brush head 7 at the top rotate, the angle adjustment is realized, at the same time, the self-locking between the first worm wheel 11 and the first worm 10 can prevent the brush head 7 from rotating accidentally in use, when the painting work is finished, the brush head 7 is soaked in water, the first motor 4 is started, the first motor 4 drives the threaded rod 13 to rotate, the moving member 14 moves, the sliding member 8 slides in the first sliding groove 2 due to the limitation of the second sliding groove 15, the scraper 22 drives the paint remaining on the brush head 7 to be scraped off, and automatic cleaning is realized;
[0041] If the brush head 7 needs to be disassembled, the knob 5 is rotated, the second worm 19 is driven to rotate, the second worm 19 drives the second worm wheel 20 to rotate, so that the rotating member 17 rotates, the fixing of the fixing groove 16 at the bottom of the brush head 7 is released, the disassembly of the brush head 7 is realized, and the reverse operation can be performed when installing.
[0042] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A wall paint brush with adjustable bristle angle comprising a connecting box (1), characterized in that: The left side of the connecting box (1) is fixedly connected with a first motor (4), a threaded rod (13) is fixedly arranged at the output end of the first motor (4), the threaded rod (13) is rotatably connected between the right end and the connecting box (1), a moving piece (14) is threadedly connected to the surface of the threaded rod (13), second sliding grooves (15) are arranged on the front and rear sides of the moving piece (14), a sliding piece (8) is slidably connected between the two second sliding grooves (15), first sliding grooves (2) are arranged on the front and rear sides of the connecting box (1), the sliding piece (8) slides between the two first sliding grooves (2), a scraper (22) is fixedly connected to the bottom of the sliding piece (8), a connecting piece (3) is arranged at the bottom of the connecting box (1), an adjusting assembly is arranged in the connecting piece (3), and the adjusting assembly is used for adjusting the angle.
2. The adjustable bristle angle wall paint brush of claim 1, wherein: The adjusting assembly comprises a second motor (9), the second motor (9) is fixedly connected between the inner wall of the connecting piece (3), a first worm (10) is fixedly arranged at the output end of the second motor (9), a first worm wheel (11) is engagedly connected to the top of the first worm (10), the first worm wheel (11) is rotatably connected between the connecting piece (3), and a rotating piece (12) is fixedly connected to the top of the first worm wheel (11).
3. The adjustable bristle angle wall paint brush of claim 2, wherein: The rotating piece (12) extends through the top of the connecting piece (3) and is fixedly connected between the top of the connecting piece (3) and the connecting box (1).
4. The adjustable bristle angle wall painting brush of claim 1, wherein: The top of the connecting box (1) is fixedly connected with a fixing piece (18), and the top of the fixing piece (18) is rotatably connected with a rotating piece (17).
5. The adjustable bristle angle wall painting brush according to claim 4, wherein: The bottom end of the rotating piece (17) is fixedly connected with a second worm wheel (20), the bottom end of the second worm wheel (20) is rotatably connected between the connecting box (1), and the front side of the second worm wheel (20) is engagedly connected with a second worm (19).
6. The adjustable bristle angle wall painting brush according to claim 5, wherein: The left end of the second worm (19) extends through the right side of the connecting box (1) and is rotatably connected between the connecting box (1), and the left end of the second worm (19) is fixedly connected with a knob (5).
7. The adjustable bristle angle wall painting brush of claim 1, wherein: The top of the connecting box (1) is provided with a brush head (7), and a fixing groove (16) is arranged at the bottom of the brush head (7).
8. The adjustable bristle angle wall painting brush of claim 1, wherein: The bottom of the connecting piece (3) is fixedly connected with a connecting rod (6), and the bottom end of the connecting rod (6) is fixedly connected with a handle (21).