Safe anti-falling roller brush

Abstract

The utility model relates to the technical field of roller brushes, in particular to a safe anti-falling roller brush which comprises a roller brush body, a supporting sleeve is arranged in the roller brush body, a fixing rod is arranged in the supporting sleeve, limiting sleeves are arranged on the two sides of the fixing rod, a clamping block is arranged on one side of each limiting sleeve, a sliding block is fixedly connected to one side of each clamping block, and a sliding rod is fixedly connected to one side of each sliding block. A pressing shell is arranged on the lower side of the turntable, a sliding pin fixedly sleeves the bottom of the pressing shell, a rotating column is arranged on one side of the sliding pin, a limiting plate is fixedly connected to the bottom of the rotating column, and the limiting plate is slidably clamped to one side of the anti-falling box; the device has the beneficial effects that the limiting sleeve limits the roller brush to prevent the roller brush from excessively sliding on the fixing rod, the clamping block limits and fixes the fixing rod, so that the roller brush is prevented from sliding out of the fixing rod when the device works, the anti-falling box is fixed to the bottom of the roller brush, and the roller brush is further prevented from falling off when accidentally falling off. And part of the roller brush is directly collided and contacted with the ground, so that the roller brush is damaged.

Description

Technical Field

[0001] The utility model relates to the technical field, and specifically relates to a safety anti - detachment type roller brush. Background Art

[0002] The roller brush, also known as a roller, is divided into three types: long hair, medium hair, and short hair. It is a tool for large - area paint rolling. The roller brush is mostly made of wool or foam plastic and can be divided into paint roller brushes, texturing roller brushes, floor paint roller brushes, flat - coating roller brushes, etc. It is mainly used for large - area paint rolling in building decoration projects and can be used to brush various blended paints, such as latex paint, rust - proof paint, interior and exterior wall paints, wallpaper pasting glue, etc.

[0003] In the prior art, most existing roller brushes are simply assembled from a handle, a connecting rod, a fixed rod, and a roller. One side of the fixed rod is fixedly connected to the connecting rod, the end of the connecting rod far from the fixed rod is fixedly connected to the handle, and the roller is rotatably sleeved on the circumference of the fixed rod. When in use, the staff controls the roller to smoothly brush the wall through the handle.

[0004] However, only one side of the fixed rod of the existing roller brush is connected to the connecting rod. During use, the roller is likely to fall off from the other side of the fixed rod, affecting work efficiency. At the same time, when it accidentally falls, part of the roller directly impacts and contacts the ground, which is prone to damage, with low safety and an increased working cost. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety anti - detachment type roller brush to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A safety anti - detachment type roller brush, comprising: a roller brush, a support sleeve is arranged inside the roller brush, a fixed rod is arranged inside the support sleeve, and limiting sleeves are arranged on both sides of the fixed rod.

[0007] One side of the limiting sleeve is provided with a clamping block, one side of the clamping block is fixedly connected to a sliding block, and one side of the sliding block is fixedly connected to a sliding rod, and the sliding rod is slidably installed inside a turntable.

[0008] A pressing shell is arranged on the lower side of the turntable, a sliding pin is fixedly sleeved at the bottom of the pressing shell, a rotating column is arranged on one side of the sliding pin, and a limiting plate is fixedly connected to the bottom of the rotating column, and the limiting plate is slidably clamped on one side of an anti - detachment box.

[0009] Preferably, a buffer is fixedly connected between the roller brush and the support sleeve, the buffers are arranged in a circumferential array, the fixed rod is sleeved inside the support sleeve and is rotatably connected to the support sleeve, and there is a group of two limiting sleeves which are symmetrically arranged with respect to the central plane of the fixed rod.

[0010] Preferably, the limit sleeve is slidably sleeved on the fixed rod, a fastening clip is sleeved inside the limit sleeve, a nut is sleeved at one end of the fastening clip, and the nut is threadedly connected to one end of the limit sleeve.

[0011] Preferably, an anti-slip pad is fixedly connected to one side of the clamping block, a fixed disk is arranged on one side of the anti-slip pad, a sliding groove is formed on the surface of the fixed disk, the sliding groove is slidably connected with the sliding block, and a fixed frame is fixedly connected to one side of the fixed disk.

[0012] Preferably, a rotating shaft is rotatably sleeved between the fixed disk and the fixed frame, a worm gear is fixedly sleeved on one side of the rotating shaft, a worm is meshed with one side of the worm gear, both ends of the worm are rotatably sleeved in the fixed frame, and one end of the worm is fixedly connected with a hand wheel through a thin steel rod.

[0013] Preferably, the other side of the rotating shaft is sleeved in the turntable and fixedly connected with the turntable, an arc-shaped groove is formed on the surface of the turntable, one end of the sliding rod is slidably connected with the arc-shaped groove, and one side of the fixed frame is fixedly connected with a Y-shaped frame.

[0014] Preferably, a clamping groove is formed on the inner side wall of the upper part of the Y-shaped frame, both sides of the anti-detachment box are slidably connected with the clamping groove, a counterbore is formed at the bottom of the anti-detachment box, and there are two counterbores in a group and they are symmetrically arranged about the central plane of the anti-detachment box.

[0015] Preferably, a circular groove is formed in the counterbore, there is a group of circular grooves which are symmetrically arranged about the central plane of the counterbore, the limiting plate is slidably connected with the inner wall of the counterbore and the circular groove, the limiting plate is fixedly sleeved at the bottom of the rotating column, and the top of the rotating column is rotatably sleeved in the pressing shell.

[0016] Preferably, grooves are formed on both sides of the pressing shell, the grooves are slidably connected with the limiting pins, the limiting pins are fixedly sleeved in the fixed frame, one side of the fixed frame is fixedly welded with the Y-shaped frame, an annular groove is formed on the outer circumferential surface of the rotating column, a vertical groove is formed on one side of the annular groove, the sliding pin is slidably connected with the annular groove and the vertical groove, one end of the spring is fixedly connected with the pressing shell, and the other end of the spring abuts against the rotating column.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. Sleeve the limit sleeve on the fixed rod and make the limit sleeve located on both sides of the roller brush. At this time, by twisting the nut, the nut will press the fastening clip to move towards the inside of the limit sleeve, and the four bifurcations of the fastening clip will continuously contract, and then the fixed rod will be clamped, so as to fix the limit sleeve. Under the limiting action of the limit sleeve, it is avoided that the roller brush slides out of the fixed rod during the operation of the device. By twisting the nut in the reverse direction, the fastening clip can be loosened, and then by sliding the limit sleeve on the fixed rod, the distance between the two limit sleeves can be adjusted to achieve the limiting effect on roller brushes of different lengths, preventing the roller brush from sliding horizontally on the fixed rod.

[0019] 2. Place the end of the fixing rod on one side of the fixing plate. At this time, by rotating the handwheel, the handwheel drives the worm to rotate through the connection of the thin steel rod. The worm meshes with the worm wheel on its side, so that the worm wheel drives the rotating shaft to rotate. Under the rotation of the rotating shaft, the rotating shaft drives the turntable to rotate. An arc-shaped groove is provided on the surface of the turntable, and the arc-shaped groove drives one end of the sliding rod to slide in the arc-shaped groove, so that the other end of the sliding rod drives the slider to slide in the sliding groove provided on the fixing plate, and further makes the slider move towards the axis line of the rotating shaft. The slider then drives the clamping block to approach the outer surface of the fixing rod until the anti-slip pad clamps the fixing rod, thus completing the fixed clamping of both ends of the fixing rod and preventing its rotation. Since there is a self-locking property between the worm and the worm wheel, the clamping stability of the fixing rod is increased, further preventing the fixing rod from falling, and thus preventing the drum brush from falling.

[0020] 3. By pressing down the pressing shell, under the sliding action of the sliding pin, the rotating column is driven to rotate, so that the rotating column drives the limiting plate to rotate, and the limiting plate is clamped at the bottom of the anti-drop box, so that the anti-drop box is fixed at the bottom of the drum brush. Further, when the drum brush accidentally falls, part of the drum brush does not directly impact and contact the ground, which may cause damage and low safety, and increase the working cost. The anti-drop box can catch the accidentally dropped drum brush, thus ensuring its reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the present invention

[0023] Figure 3 of the present invention Figure 2 is an enlarged schematic diagram of the structure at A in the present invention;

[0024] Figure 4 is a schematic top view of the internal structure of the present invention;

[0025] Figure 5 of the present invention Figure 4 is an enlarged schematic diagram of the structure at B in the present invention;

[0026] Figure 6 is a schematic bottom view of the internal structure of the present invention.

[0027] In the figure: 1. Roller brush; 2. Support sleeve; 3. Fixed rod; 4. Limiting sleeve; 5. Clamping block; 6. Slide block; 7. Slide rod; 8. Turntable; 9. Pressing shell; 10. Slide pin; 11. Rotating column; 12. Limiting plate; 13. Anti - detachment box; 14. Buffer; 15. Fastening clip; 16. Nut; 17. Anti - slip pad; 18. Fixed disk; 19. Chute; 20. Fixed frame; 21. Rotating shaft; 22. Worm gear; 23. Worm; 24. Thin steel rod; 25. Handwheel; 26. Arc groove; 27. Y - shaped frame; 28. Card slot; 29. Counterbore; 30. Round groove; 31. Groove; 32. Limiting pin; 33. Fixed frame; 34. Ring groove; 35. Vertical groove; 36. Spring. Detailed implementation mode

[0028] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4 , the present utility model provides a technical solution: a safety anti - detachment type roller brush, including: a roller brush 1, a support sleeve 2 is arranged inside the roller brush 1, a fixed rod 3 is arranged inside the support sleeve 2, limiting sleeves 4 are arranged on both sides of the fixed rod 3, a clamping block 5 is arranged on one side of the limiting sleeve 4, a slide block 6 is fixedly connected to one side of the clamping block 5, a slide rod 7 is fixedly connected to one side of the slide block 6, the slide rod 7 is slidably installed inside a turntable 8, a pressing shell 9 is arranged on the lower side of the turntable 8, a slide pin 10 is fixedly sleeved at the bottom of the pressing shell 9, a rotating column 11 is arranged on one side of the slide pin 10, a limiting plate 12 is fixedly connected to the bottom of the rotating column 11, and the limiting plate 12 is slidably clamped on one side of the anti - detachment box 13.

[0031] By sliding and inserting the fixed rod 3 into the support sleeve 2, it is convenient for the support sleeve 2 to rotate on the fixed rod 3. Limit sleeves 4 are sleeved on both sides of the support sleeve 2, so that the limit sleeves 4 limit the drum brush 1, facilitating its rotary brushing operation. By rotating the turntable 8, the slide rod 7 is driven to move, causing the slide rod 7 to drive the slider 6 to move towards the axis direction of the fixed rod 3. Under the sliding operation of the slider 6, the slider 6 drives the clamping block 5 to move towards the fixed rod 3, so that the clamping block 5 limits and fixes the fixed rod 3, avoiding the drum brush 1 slipping out of the fixed rod 3 during the operation of the device. At the same time, by pressing down the pressing shell 9, under the sliding action of the sliding pin 10, the rotating column 11 is driven to rotate, so that the rotating column 11 drives the limiting plate 12 to rotate, making the limiting plate 12 snap onto the bottom of the anti-drop box 13, and further fixing the anti-drop box 13 at the bottom of the drum brush 1. Further, when the drum brush 1 accidentally falls, part of the drum brush 1 will not directly impact and contact the ground, preventing damage and low safety, and reducing the problem of increasing the working cost. The anti-drop box 13 can catch the accidentally dropped drum brush 1, ensuring its reuse.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, a buffer 14 is fixedly connected between the drum brush 1 and the support sleeve 2. The buffers 14 are arranged in a circumferential array. The fixed rod 3 is sleeved in the support sleeve 2 and is rotatably connected to the support sleeve 2. There is a set of two limit sleeves 4 which are symmetrically arranged with respect to the central plane of the fixed rod 3. The drum brush 1 and the support sleeve 2 are fixedly connected by the buffer 14, buffering between the drum brush 1 and the support sleeve 2, and further protecting the drum brush 1 from being deformed due to excessive force, affecting the rotary brushing operation. The fixed rod 3 limits and stably supports the support sleeve 2, facilitating the rotation of the support sleeve 2 on the fixed rod 3. The limit sleeves 4 are arranged on both sides of the drum brush 1 to limit it. The limit sleeves 4 are slidably sleeved on the fixed rod 3. A fastening clip 15 is sleeved inside the limit sleeve 4. A nut 16 is sleeved at one end of the fastening clip 15. The nut 16 is threadedly connected to one end of the limit sleeve 4. By tightening the nut 16, the fastening clip 15 clamps the fixed rod 3, so that the limit sleeve 4 is fixed on both sides of the support sleeve 2, avoiding the drum brush 1 slipping out of the fixed rod 4 during the operation of the device.

[0034] The buffer 14 fixedly connected between the drum brush 1 and the support sleeve 2 enables the drum brush 1 to fit more closely to the wall surface during the operation of the rotary brush, and at the same time, it can prevent the drum brush 1 from being damaged due to excessive force. Insert the fixing rod 3 into the support sleeve 2 to facilitate the rotation of the support sleeve 2. Sleeve the limiting sleeve 4 on the fixing rod 3 and make the limiting sleeve 4 located on both sides of the drum brush 1. At this time, by twisting the nut 16, the nut 16 will press the fastening clip 15 to move towards the inside of the limiting sleeve 4, and the four forks of the fastening clip 15 will continuously contract, and then clamp the fixing rod 3 to fix the limiting sleeve 4. Under the limiting action of the limiting sleeve 4, it is prevented that the drum brush 1 slides out of the fixing rod 3 during the operation of the device. Twist the nut 16 in the reverse direction, so that the fastening clip 15 can be loosened, and then by sliding the limiting sleeve 4 on the fixing rod 3, the distance between the two limiting sleeves 4 can be adjusted to achieve the limiting effect on the drum brush 1 of different lengths, preventing the drum brush 1 from sliding horizontally on the fixing rod 3.

[0035] Embodiment Three

[0036] On the basis of Embodiment Two, an anti-slip pad 17 is fixedly connected to one side of the clamping block 5. A fixing disk 18 is arranged on one side of the anti-slip pad 17. A sliding groove 19 is formed on the surface of the fixing disk 18, and the sliding groove 19 is slidably connected with the sliding block 6. A fixing frame 20 is fixedly connected to one side of the fixing disk 18. The anti-slip pad 17 fixedly installed on one side of the clamping block 5 can increase the friction between the clamping block 5 and the fixing rod 3, so that the clamping block 5 clamps and fixes the fixing rod 3 more stably. The sliding groove 19 formed on the fixing disk 18 facilitates the sliding of the sliding block 6. The fixing frame 20 fixedly supports the fixing disk 18. A rotating shaft 21 is rotatably sleeved between the fixing disk 18 and the fixing frame 20. A worm gear 22 is fixedly sleeved on one side of the rotating shaft 21. A worm 23 is meshed with the worm gear 22 on one side. The two ends of the worm 23 are rotatably sleeved in the fixing frame 20. One end of the worm 23 is fixedly connected with a hand wheel 25 through a thin steel rod 24. The rotating shaft 21 is rotatably sleeved between the fixing disk 18 and the fixing frame 20. By rotating the hand wheel 25, the hand wheel 25 drives the thin steel rod 24 to move, so that the thin steel rod 24 drives the worm 13 to rotate in the fixing frame 20. The worm 13 is meshed with the worm gear 22 on one side of it, and the worm gear 22 is fixedly sleeved on one side of the rotating shaft 21, so as to drive the rotating shaft 21 to rotate. The other side of the rotating shaft 21 is sleeved in the turntable 8 and fixedly connected with the turntable 8. An arc-shaped groove 26 is formed on the surface of the turntable 8. One end of the sliding rod 7 is slidably connected with the arc-shaped groove 26. One side of the fixing frame 20 is fixedly connected with a Y-shaped frame 27. Under the rotating action of the rotating shaft 21, the rotating shaft 21 drives the turntable 8 to rotate. The turntable 8 drives the sliding rod 7 to move through the arc-shaped groove 26 formed on its surface, so that the sliding rod 7 drives the sliding block 6 to slide.

[0037] After the limit sleeve 4 is installed, place the end of the fixing rod 3 on one side of the fixing disc 18. At this time, by rotating the handwheel 25, the handwheel 25 drives the worm 23 to rotate through the connection of the thin steel rod 24. The worm 23 meshes and drives with the worm gear 22 on its one side, so that the worm gear 22 drives the rotating shaft 21 to rotate. Under the rotation action of the rotating shaft 21, the rotating shaft 21 drives the turntable 8 to rotate. An arc-shaped groove 26 is formed on the surface of the turntable 8, and the arc-shaped groove 26 thus drives one end of the sliding rod 7 to slide in the arc-shaped groove 26, so that the other end of the sliding rod 7 drives the slider 6 to slide in the sliding groove 19 formed on the fixing disc 18, and further makes the slider 6 move towards the axis direction of the rotating shaft 21. The slider 6 further drives the clamping block 5 to approach the outer circumferential surface of the fixing rod 3 until the anti-slip pad 17 clamps the fixing rod 3, thus completing the fixed clamping of both ends of the fixing rod 3 and preventing its rotation. Since there is a self-locking property between the worm 23 and the worm gear 22, the clamping stability of the fixing rod 3 is increased, further preventing the fixing rod 3 from falling, and thus preventing the drum brush 1 from falling. In addition, the slider 6 can be used to clamp the fixing rods 3 with different diameters according to the sliding distance on the fixing disc 18, and further facilitate the support of drum brushes 1 of different sizes.

[0038] Embodiment Four

[0039] On the basis of Embodiment 3, a card slot 28 is formed in the inner side wall of the upper part of the Y-shaped frame 27. The two sides of the anti-detachment box 13 are slidably connected to the card slot 28. A counterbore 29 is formed at the bottom of the anti-detachment box 13. There are two counterbores 29 in a group and they are symmetrically arranged with respect to the central plane of the anti-detachment box 13. The Y-shaped frame 27 limits the anti-detachment box 13, which is convenient for disassembly and installation. The counterbore 29 formed at the bottom of the anti-detachment box 13 is convenient for the clamping of the limiting plate 12. A circular groove 30 is formed in the counterbore 29. There is a group of circular grooves 30 and they are symmetrically arranged with respect to the central plane of the counterbore 29. The limiting plate 12 is slidably connected to the inner wall of the counterbore 29 and the circular groove 30. The limiting plate 12 is fixedly sleeved at the bottom of the rotating column 11. The top of the rotating column 11 is rotatably sleeved in the pressing shell 9. The circular groove 30 formed in the counterbore 29 is convenient for the sliding of the limiting plate 12, so as to facilitate the disassembly of the anti-detachment box 13. The limiting plate 12 is slidably connected to the inner wall of the counterbore 29 and also to the inner wall of the circular groove 30, which further facilitates the limiting of the limiting plate 12. Grooves 31 are formed on both sides of the pressing shell 9. The grooves 31 are slidably connected to the limiting pins 32. The limiting pins 32 are fixedly sleeved in the fixed frame 33. One side of the fixed frame 33 is fixedly welded to the Y-shaped frame 27. An annular groove 34 is formed on the outer circumferential surface of the rotating column 11. A vertical groove 35 is formed on one side of the annular groove 34. The sliding pin 10 is slidably connected to the annular groove 34 and the vertical groove 35. One end of the spring 36 is fixedly connected to the pressing shell 9, and the other end of the spring 36 abuts against the rotating column 11. The top of the rotating column 11 is sleeved in. The groove 31 is slidably connected to the limiting pin 32 fixedly installed in the fixed frame 33. Thus, under the limiting action of the groove 31, the pressing shell 9 can slide up and down in the fixed frame 33. The annular groove 34 and the vertical groove 35 formed on the outer circumferential surface of the rotating column 11 facilitate the sliding of the sliding pin 10 and also limit it. One end of the spring 36 is fixed in the pressing shell 9, and the other end of the spring abuts against the upper surface of the rotating column 11, so as to facilitate the reset of the pressing shell 9.

[0040] The Y-shaped bracket 27 supports the entire roller brush 1, facilitating the operator to operate the roller brush 1 for rolling brush operation by holding the bottom of the Y-shaped bracket 27. Through the card slots 28 opened on both sides of the Y-shaped bracket 27, it is convenient for the installation and disassembly of the anti-detachment box 13. Install both sides of the anti-support box 13 in the card slots 28. By pressing down the pressing shell 9, the pressing shell 9 moves downward under the sliding cooperation of the groove 31 and the limit pin 32. The pressing shell 9 will compress the spring 36 and at the same time drive the sliding pin 10 fixedly sleeved at its bottom to move downward. Thus, the sliding pin 10 first slides downward along the annular groove 34, driving the rotating column 11 to rotate within the fixed frame 33. Thereby, the rotating column 11 drives the limit plate 12 to rotate. When the sliding pin 10 moves to the bottom of the annular groove 34, it will be blocked by the vertical groove 35 and will no longer cause the rotating column 11 to rotate. At this time, the rotating column 11 rotates 90 degrees. Then release the pressing shell 9, and the pressing shell 9 drives the sliding pin 10 to rise along the vertical groove 35 under the elastic force of the spring 36, thus resetting the pressing shell. At this time, the limit plate 12 rotates to the side where the circular groove 30 is not opened in the counterbore 29, so that the limit plate 12 is clamped in the counterbore 29, further preventing the roller brush 1 from loosening and falling. When the roller brush 1 accidentally falls into the anti-detachment box 13, press down the pressing shell 9 again, which will cause the rotating column 11 to drive the limit plate 12 to rotate 90 degrees, so that both ends of the limit plate 12 are movably clamped in the circular groove 30, so that the limit plate 12 no longer limits the inside of the counterbore 29, facilitating the disassembly of the anti-detachment box 13 and the subsequent reinstallation of the roller brush 1.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety anti-falling roller brush, comprising a roller brush (1), characterized in that: The roller brush (1) is provided with a support sleeve (2), a fixing rod (3) is provided in the support sleeve (2), and limiting sleeves (4) are provided on both sides of the fixing rod (3); A clamping block (5) is provided on one side of the limiting sleeve (4), a sliding block (6) is fixedly connected to one side of the clamping block (5), a sliding rod (7) is fixedly connected to one side of the sliding block (6), and the sliding rod (7) is slidably installed in the rotating disk (8); A pressing shell (9) is arranged at the lower side of the rotating disk (8), a sliding pin (10) is fixedly sleeved at the bottom of the pressing shell (9), a rotating column (11) is arranged at one side of the sliding pin (10), a limiting plate (12) is fixedly connected at the bottom of the rotating column (11), and the limiting plate (12) is slidably clamped at one side of the anti-dropping box (13).

2. A safety anti-falling roller brush according to claim 1, characterized in that: A buffer (14) is fixedly connected between the roller brush (1) and the support sleeve (2), and the buffer (14) is arranged in a circular array. The fixed rod (3) is sleeved in the support sleeve (2) and is rotatably connected to the support sleeve (2). A set of two limiting sleeves (4) are provided and are symmetrically arranged about the central plane of the fixed rod (3).

3. A safety anti-falling roller brush according to claim 2, characterized in that: The limiting sleeve (4) is slidably sleeved on the fixing rod (3), a fastening clamp (15) is sleeved inside the limiting sleeve (4), a nut (16) is sleeved on one end of the fastening clamp (15), and the nut (16) is threadedly connected to one end of the limiting sleeve (4).

4. A safety anti-falling roller brush according to claim 3, characterized in that: One side of the clamping block (5) is fixedly connected to an anti-skid pad (17), one side of the anti-skid pad (17) is provided with a fixed plate (18), a sliding groove (19) is provided on the surface of the fixed plate (18), the sliding groove (19) is slidably connected to the slider (6), and one side of the fixed plate (18) is fixedly connected to a fixed frame (20).

5. A safety anti-falling roller brush according to claim 4, characterized in that: A rotating shaft (21) is rotatably sleeved between the fixed plate (18) and the fixed frame (20), a worm wheel (22) is fixedly sleeved on one side of the rotating shaft (21), one side of the worm wheel (22) is engaged with a worm (23), both ends of the worm (23) are rotatably sleeved in the fixed frame (20), and one end of the worm (23) is fixedly connected to a hand wheel (25) through a thin steel rod (24).

6. A safety anti-falling roller brush according to claim 5, characterized in that: The other side of the rotating shaft (21) is sleeved in the rotating disk (8) and fixedly connected to the rotating disk (8). An arc groove (26) is provided on the surface of the rotating disk (8). One end of the sliding rod (7) is slidably connected to the arc groove (26). One side of the fixed frame (20) is fixedly connected to the Y-shaped frame (27).

7. A safety anti-falling roller brush according to claim 6, characterized in that: The inner side wall of the upper part of the Y-shaped frame (27) is provided with a slot (28), and the two sides of the anti-slip box (13) are slidably connected to the slot (28). The bottom of the anti-slip box (13) is provided with a countersunk hole (29), and a group of two countersunk holes (29) are provided and are symmetrically arranged about the center plane of the anti-slip box (13).

8. A safety anti-falling roller brush according to claim 7, characterized in that: The counterbore (29) is provided with a circular groove (30), and the circular groove (30) is provided with a group of symmetrically arranged about the central plane of the counterbore (29). The limiting plate (12) is slidably connected with the inner wall of the counterbore (29) and the circular groove (30). The limiting plate (12) is fixedly sleeved on the bottom of the rotating column (11), and the top of the rotating column (11) is rotatably sleeved on the pressing shell (9).

9. A safety anti-falling roller brush according to claim 8, characterized in that: The pressing shell (9) is provided with grooves (31) on both sides, and the grooves (31) are slidably connected to the limit pins (32). The limit pins (32) are fixedly sleeved in the fixed frame (33), and one side of the fixed frame (33) is welded and fixed to the Y-shaped frame (27). The outer ring surface of the rotating column (11) is provided with an annular groove (34), and one side of the annular groove (34) is provided with a vertical groove (35). The sliding pin (10) is slidably connected to the annular groove (34) and the vertical groove (35). The pressing shell (9) is fixedly connected to one end of the spring (36), and the other end of the spring (36) is in contact with the rotating column (11).

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