Hair winding prevention rolling brush

Abstract

The utility model belongs to the technical field of ground cleaning equipment, and particularly relates to an anti-tangling rolling brush which comprises a rolling brush body, the rolling brush body is rotatably connected to a rolling brush seat, the rolling brush body comprises a brush shaft shell, a first shaft cover and a second shaft cover, and the first shaft cover and the second shaft cover are installed at the two ends of the rolling brush shell. The first shaft cover is rotationally connected to the rolling brush base through a first transmission shaft, the second shaft cover is connected with the driving device through a transmission piece, and the brush shaft shell is formed by splicing a first shaft shell and a second shaft shell. The first comb teeth which are integrally formed with the first shaft shell in an injection molding mode are adopted to replace a traditional split type metal tool apron, the production cost of the part is reduced to a large extent, light weight is achieved, and meanwhile the first comb teeth and the second comb teeth are matched so that the protection function of a tool tooth piece can be achieved; the arranged cutter tooth piece can be made of plastic or metal materials, a user can choose by himself according to the use environment humidity, the cutter tooth piece replacement cost and the mute requirement, and the user requirement is further met.

Description

Technical Field

[0001] This utility model belongs to the technical field of floor cleaning equipment, specifically relating to an anti-tangling brush. Background Technology

[0002] Sweepers and other cleaning equipment are equipped with roller brushes. The floor is swept by rotating the roller brushes. During the sweeping process, long dirt and foreign objects such as hair are rolled into the roller brushes and become entangled on them. They accumulate and become difficult to remove, which reduces the cleaning efficiency and affects the normal operation of the sweeper.

[0003] According to application number 202510004247.9, a roller brush, roller brush mechanism, and cleaning device are proposed. This technology discloses that "the roller brush includes a brush shaft with a cavity, a brush sweeping assembly, a transmission assembly, and a cutting assembly; the brush sweeping assembly is disposed on the outer peripheral wall of the brush shaft, and the brush sweeping assembly can guide the swept debris from both ends of the brush shaft to the middle region of the brush shaft; at least a portion of the transmission assembly is located in the cavity; the cutting assembly is disposed in the middle region of the brush shaft, and the cutting assembly includes a blade tooth and a blade holder, the blade holder being fixedly connected to the brush shaft, etc. The structure of this roller brush can solve or alleviate the problem of reduced cleaning efficiency caused by hair and other foreign objects entangled in the roller brush, etc."

[0004] This device requires the separate production of the tool holder component. Although it has high strength, it has the following drawbacks:

[0005] 1. The "tool holder" is connected to the "second shaft housing" in a fitted form. Although the installation is compact, the machining of the "tool holder" and the opening of the countersink, as well as the connection between the two, all require corresponding processes, which obviously increases the cost.

[0006] 2. Secondly, most traditional tool holders and cutting teeth are made of metal. Although they have reliable strength, they require cutting and grinding processes during processing, which is costly. Furthermore, metal materials are not conducive to lightweighting, and their corrosion resistance and noise reduction performance are poor. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides an anti-tangling brush, which features reduced cost, lightweight design, and quiet operation.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an anti-tangling roller brush, comprising a roller brush body rotatably connected to a roller brush seat, the roller brush body including a brush shaft housing and a first shaft cover and a second shaft cover installed at both ends of the roller brush housing, the first shaft cover being rotatably connected to the roller brush seat via a first transmission shaft, the second shaft cover being connected to a drive device via a transmission component, the brush shaft housing being formed by splicing the first shaft cover and the second shaft cover, the first shaft cover having a first comb tooth protruding axially on its outer side, and the brush shaft housing also having a cutting mechanism inside, the cutting mechanism including a gearbox, a cam, a blade holder, and a cutting tooth component, the gearbox being fixed to the brush shaft housing and driving the cam to rotate via a second transmission shaft, the upper part of the blade holder having a groove for embedding the cam, the cutting tooth component being fixed below the blade holder and engaging with the first comb tooth, the cam being decelerated by the gearbox and driving the blade holder to reciprocate axially, thereby causing the cutting tooth component to engage with the first comb tooth to form an axial cutting operation.

[0009] As a preferred embodiment of this utility model, the gearbox has a plug-in end at the front end, and the brush shaft housing has a plug-in groove inside for fixing the plug-in end.

[0010] As a preferred technical solution of this utility model, the second shaft housing is provided with a second comb tooth corresponding to the first comb tooth along the axial direction on the outside of the second comb tooth, and the bottom of the second comb tooth extends toward the first comb tooth to form an extension portion, thereby wrapping the cutting tooth component.

[0011] As a preferred embodiment of this utility model, a connecting pin is fixed to the side of the tool holder, and an installation hole for insertion of the connecting pin is provided in the tool teeth.

[0012] As a preferred technical solution of this utility model, the cutting tooth component is further provided with a movable hole, a limiting pin that passes through the movable hole is fixed on the side of the first shaft housing near the cutting tooth component, and a pin hole that is inserted into the front end of the limiting pin in the through state is provided on the second shaft housing.

[0013] As a preferred embodiment of this utility model, the tool holder is provided with a guide groove on the side near the second shaft housing, and a guide strip is formed on the second shaft housing that slides in cooperation with the guide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model replaces the traditional split metal cutter holder with a first comb tooth integrally molded with the first shaft housing, which greatly reduces the production cost of this part and also achieves weight reduction. At the same time, the first comb tooth and the second comb tooth can also protect the cutter tooth component. The cutter tooth component can be made of plastic or metal, and users can choose according to the humidity of the usage environment, the cost of replacing the cutter tooth component, and the need for quiet operation, thus further meeting user needs. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure;

[0018] Figure 2 This is a structural diagram showing the disassembled parts of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the present invention split from another angle;

[0020] Figure 4 This is a partial cross-sectional structural diagram of the connection between the brush shaft housing, the first shaft cover, and the gearbox.

[0021] Figure 5 This is an enlarged structural diagram of the connection between the second shaft housing, gearbox, tool holder, and cutting teeth.

[0022] Figure 6 This is an enlarged structural diagram of the connection between the second shaft housing, the tool holder, and the cutting teeth.

[0023] Figure 7 This is a side view half-sectional structural diagram of the present invention;

[0024] In the diagram: 1. Brush body; 10. Brush seat; 11. Brush shaft housing; 111. Insertion groove; 101. First drive shaft; 12. First shaft housing; 121. First comb tooth; 122. Limiting pin; 13. Second shaft housing; 131. Second comb tooth; 1311. Extension; 132. Guide strip; 133. Pin hole; 14. First shaft cover; 15. Second shaft cover; 2. Gearbox; 21. Second drive shaft; 22. Insertion end; 3. Cam; 4. Blade holder; 41. Groove; 42. Connecting pin; 43. Guide groove; 5. Blade tooth component; 51. Mounting hole; 52. Movable hole; 6. Bearing. Detailed Implementation

[0025] 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.

[0026] Example

[0027] Please see Figures 1-7This utility model provides the following technical solution: an anti-tangling roller brush, including a roller brush body 1 and a roller brush seat 10. The roller brush seat 10 is fixedly connected to a floor brush (not shown in the figure). The roller brush body 1 is connected to the roller brush seat 10 and is horizontally rotatable so that the roller brush body 1 can fully contact the cleaning surface in the axial direction. A first drive shaft 101 is fixedly attached to the roller brush seat 10 along the axial direction of the roller brush body 1. The roller brush body 1 includes a brush shaft housing 11 and a first shaft cover 14 and a second shaft cover 15 installed at both ends of the brush shaft housing 11. The first shaft cover 14 is rotatably connected to the roller brush seat 10 through the first drive shaft 101. In this embodiment, the first shaft cover 14 and the first drive shaft 101 are rotatably connected through a bearing 6. The second shaft cover 15 is connected to a drive device (not shown in the figure) inside the floor brush through a belt or other transmission component. The drive device is used to provide power for the rotation of the roller brush body 1.

[0028] Furthermore, the roller brush body 1 has a hair cutting function. The brush shaft housing 11 is hollow. For easy assembly, the brush shaft housing 11 is formed by splicing a first shaft housing 12 and a second shaft housing 13. After splicing, it is fixed by screws with a threaded platform arranged radially on the inner side. The first shaft housing 12 has a first comb tooth 121 protruding axially on its outer side. The brush shaft housing 11 has a cutting mechanism inside that cooperates with the first comb tooth 121 to form a cutting mechanism. The cutting mechanism includes a gearbox 2, a cam 3, a blade holder 4, and a blade tooth 5. The gearbox 2 is fixed to the brush shaft housing 11. The output end of the gearbox 2 is connected to a second drive shaft 21 and a cam 3. The second drive shaft 21 and the cam 3 are axially inserted using a "I"-shaped shaft and hole, and are positioned at the end by a shaft retaining ring. The gearbox 2 is an existing type. The planetary reduction gearbox 2 has a reduction gear set inside, which is fixedly connected to the first drive shaft 101. When the gearbox 2 rotates with the brush shaft housing 11, the second drive shaft 21 and the cam 3 are reduced in speed, and the speed is much lower than that of the brush shaft housing 11. The upper part of the blade holder 4 is provided with a groove 41 for embedding the cam 3. Since the surface of the cam 3 is an uneven arc surface, it will push the blade holder 4 to move back and forth along the axial direction when rotating. The blade tooth 5 is fixed below the blade holder 4 and fits against the first comb tooth 121. After the cam 3 is reduced in speed by the gearbox 2, it drives the blade holder 4 to move back and forth along the axial direction, so that the blade tooth 5 and the first comb tooth 121 cooperate to form an axial cutting operation. There is a space between the blade holder 4 and the brush shaft housing 11 to meet the reciprocating movement of the blade tooth 5.

[0029] Specifically, the front end of the gearbox 2 is fixed with a plug end 22 by screws. The middle part of the plug end 22 fits against the front end of the gearbox 2, and symmetrical rectangular plates are formed on both sides. The brush shaft housing 11 is provided with a plug groove 111 inside. The plug groove 111 is symmetrically formed in the first shaft housing 12 and the second shaft housing 13, and is plugged into the rectangular plate. In this embodiment, the cooperation between the plug end 22 and the plug groove 111 stabilizes the connection strength between the gearbox 2 and the brush shaft housing 11, and prevents loosening. The first shaft housing 12 and the second shaft housing 13 are both injection molded and the contact surface is formed with an arc-shaped groove for the gearbox 2 to be embedded.

[0030] Specifically, the blade tooth 5 is made of metal or plastic and protrudes from the surface of the brush shaft housing 11. The second shaft housing 13 has a second comb tooth 131 protruding axially from the outside, corresponding to the first comb tooth 121. The bottom of the second comb tooth 131 extends toward the first comb tooth 121 to form an extension 1311, thereby enclosing the blade tooth 5. In this embodiment, the first comb tooth 121, the second comb tooth 131, and the extension 1311 provide cutting space for the blade tooth 5 while also providing protection to prevent collision with external hard objects and avoid being scratched by the blade tooth 5.

[0031] Specifically, a connecting pin 42 is fixed on the side of the tool holder 4, and a mounting hole 51 is opened in the cutting tooth 5 to be inserted into the connecting pin 42. In this embodiment, multiple sets of connecting pins 42 and mounting holes 51 are provided and remain connected after the second shaft housing 13 and the first shaft cover 14 are combined. This can ensure the structural strength between the tool holder 4 and the cutting tooth 5, and at the same time facilitate assembly and maintenance.

[0032] Specifically, the cutting tooth component 5 is provided with a movable hole 52. A limiting pin 122 that passes through the movable hole 52 is fixed on the side of the first shaft housing 12 near the cutting tooth component 5. The second shaft housing 13 is provided with a pin hole 132 that is inserted into the front end of the limiting pin 122 in the through state. In this embodiment, the movable hole 52 is an elongated strip arranged along the axial direction, which is used for radial support and axial guidance when the cutting tooth component 5 reciprocates. After the limiting pin 122 passes through the movable hole 52, the insertion of it into the guide strip 132 further strengthens the connection stability of the cutter holder 4 and the cutting tooth component 5 in the brush shaft housing 11. At the same time, it also provides positioning for the first shaft housing 12 and the second shaft housing 13, ensuring that the two are accurately spliced.

[0033] Specifically, the tool holder 4 has a guide groove 43 on the side near the second shaft housing 13, and a guide strip 133 is formed on the second shaft housing 13 that slides with the guide groove 43. In this embodiment, the guide groove 43 and the pin hole 133 are both injection molded to strengthen the reliable connection and stable movement of the tool holder 4 in the brush shaft housing 11, thereby playing the same role for the cutting tooth 5.

[0034] The working principle and usage process of this utility model are as follows: This utility model is installed on the floor brush through the roller brush seat 10. The second shaft cover 15 is connected to the drive device in the floor brush through a belt. When the drive device is started, it drives the roller brush body 1 to rotate through belt drive. At this time, the gearbox 2 rotates synchronously with the brush shaft housing 11. The end of the first drive shaft 101 away from the roller brush seat 10 is connected to the reduction gear set inside the gearbox 2. After being reduced by the gearbox 2, the rotation speed of the second drive shaft 21 and the cam 3 is much lower than the rotation speed of the roller brush body 1. The cam 3 drives the blade holder 4 and the blade tooth 5 to move axially back and forth in the brush shaft housing 11 through the cooperation with the groove 41. The blade tooth 5 fits with the first comb tooth 121 to form a cutting action, cutting off the hair wrapped around the surface of the brush shaft housing 11.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-tangling roller brush, comprising a roller brush body (1), the roller brush body being rotatably connected to a roller brush seat (10), the roller brush body comprising a brush shaft housing (11) and a first shaft cover (14) and a second shaft cover (15) mounted at both ends of the roller brush housing, the first shaft cover being rotatably connected to the roller brush seat via a first transmission shaft (101), the second shaft cover being connected to a driving device via a transmission component, characterized in that: The brush shaft housing (11) is formed by splicing a first shaft housing (12) and a second shaft housing (13). The first shaft housing (12) has a first comb tooth (121) protruding axially on its exterior. The brush shaft housing (11) is also provided with a cutting mechanism. The cutting mechanism includes a gearbox (2), a cam (3), a tool holder (4), and a cutting tooth (5). The gearbox is fixed to the brush shaft housing (11) and drives the cam (3) to rotate through a second transmission shaft (21). The upper part of the tool holder is provided with a groove (41) for embedding the cam. The cutting tooth is fixed below the tool holder and fits against the first comb tooth (121). After the cam is decelerated by the gearbox, it drives the tool holder to reciprocate axially, so that the cutting tooth and the first comb tooth cooperate to form an axial cutting operation.

2. The anti-tangling brush according to claim 1, characterized in that: The gearbox (2) has a plug-in end (22) at the front end, and the brush shaft housing (11) has a plug-in groove (111) inside for fixing the plug-in end (22).

3. The anti-tangling brush according to claim 1, characterized in that: The second shaft housing (13) has a second comb tooth (131) protruding axially on the outside, corresponding to the first comb tooth (121). The bottom of the second comb tooth (131) extends toward the first comb tooth (121) to form an extension (1311), thereby wrapping around the cutting tooth (5).

4. The anti-tangling brush according to claim 1, characterized in that: The tool holder (4) is fixed with a connecting pin (42) on its side, and the tool tooth (5) is provided with a mounting hole (51) for inserting into the connecting pin (42).

5. The anti-tangling brush according to claim 1, characterized in that: The cutting tooth component (5) is also provided with a movable hole (52). The first shaft housing (12) is fixed with a limiting pin (122) that passes through the movable hole (52) on the side near the cutting tooth component (5). The second shaft housing (13) is provided with a pin hole (132) that is inserted into the front end of the limiting pin (122) in the through state.

6. The anti-tangling brush according to claim 1, characterized in that: The tool holder (4) has a guide groove (43) on the side near the second shaft housing (13), and a guide strip (133) is formed on the second shaft housing (13) that slides with the guide groove (43).

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