Passive brush sweeper
By setting through holes and air inlets in the passive brush cleaner, the problem of fine materials adhering to the brush is solved by using fan blades to draw in and blow out airflow, thus achieving a better cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI XIBOMAN ELECTRICAL EQUIP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-24
AI Technical Summary
Existing passive brush cleaners still have fine materials adhering to the brushes during rotation, resulting in poor cleaning performance.
The design incorporates a drive roller and a brush cylinder. The brush cylinder has through holes and an air inlet. When the fan blades rotate, they draw air in and blow it out through the through holes to remove fine materials from the brush bristles.
It effectively removes fine particles adhering to the brush, improving the cleaning effect.
Smart Images

Figure CN224159947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning device technology, and in particular to a passive brush cleaning device. Background Technology
[0002] The non-powered roller brush cleaner is installed below the return belt of the head roller of the belt conveyor and behind the scraper cleaner. It is used as a secondary cleaner for the conveyor belt to further remove material adhering to the return belt. Patent application number 201220478231.X discloses a passive brush cleaner, including a drum. A brush is fixed axially on the outer side of the drum. A bearing seat is installed at each end of the drum, and the two ends of the drum are supported on the two bearing seats respectively. A flexible shaft connector is installed on each end face of the drum. A flexible shaft is installed on each of the two flexible shaft connectors. The lower ends of the two flexible shafts are connected to the two flexible shaft connectors respectively. A drive wheel is connected to the upper end of each of the two flexible shafts. A flexible shaft fixing seat is installed on the upper side of each of the two bearing seats. The middle part of the two flexible shafts is supported on the two flexible shaft fixing seats respectively. The rotation of the drive wheel can drive the drum to rotate, thereby cleaning the belt. However, during the rotation of the drum, under the action of centrifugal force, the material adhering to the brush will not be completely removed, and some fine material will still adhere to it. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a passive brush cleaner in response to the above-mentioned technical deficiencies.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a passive brush cleaner, including a transmission roller, both ends of which are rotatably connected to dust covers, which are also rotatably connected to both ends of a brush cylinder. Both ends of the transmission roller and the brush cylinder are provided with sprockets, and two sprockets located on the same side are connected by chain drive. Both ends of the transmission roller are also rotatably connected to bearing seats. The brush cylinder is provided with bristles on its exterior. The brush cylinder is provided with multiple through holes penetrating its inner and outer walls. Both ends of the brush cylinder are provided with multiple air inlets. One side of each air inlet is provided with a fan blade that can draw air into the brush cylinder when it rotates.
[0005] To further optimize this technical solution, the lower end of the dust cover is hinged to one end of the turnbuckle tightener.
[0006] To further optimize this technical solution, in the direction of rotation of the roller brush cylinder, the end of the fan blade away from the axis of the roller brush cylinder is in front of the other end, and in the direction of rotation of the roller brush cylinder, the side of the fan blade facing the wind away from the dust cover is behind the other side.
[0007] Compared with the prior art, the present invention has the following advantages: the roller brush cylinder is provided with multiple through holes penetrating its inner and outer walls, and multiple air inlets are provided at both ends of the roller brush cylinder. A fan blade is provided on one side of the air inlet so that it can draw air into the roller brush cylinder when the roller brush cylinder rotates. The air drawn into the roller brush cylinder is blown out through the through holes, which can blow away some of the fine materials adhering to the brush bristles, thereby reducing the amount of material adhering to the brush bristles and thus improving the cleaning effect. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of a passive brush cleaner.
[0009] Figure 2 for Figure 1 A magnified view of point I in the middle.
[0010] Figure 3 This is a cross-sectional view of the brush cylinder.
[0011] In the diagram: 1. Drive roller; 2. Dust cover; 3. Brush cylinder; 31. Air inlet; 32. Fan blade; 4. Brush bristles; 5. Turnbuckle tightener; 6. Bearing housing. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0013] Detailed implementation method: combined with Figure 1-3 As shown, a passive brush cleaner includes a drive roller 1. Dust covers 2 are rotatably connected to both ends of the drive roller 1. These two dust covers 2 are also rotatably connected to both ends of a brush cylinder 3. The dust covers 2 serve both dust protection and support functions. Both ends of the drive roller 1 and the brush cylinder 3 are equipped with sprockets, and two sprockets located on the same side are connected by a chain drive, so that when the drive roller 1 rotates, it can drive the brush cylinder 3 to rotate. The axes of the drive roller 1 and the brush cylinder 3 are parallel to each other. The two ends of the transmission roller 1 are rotatably connected to bearing seats 6, which are located outside the dust cover 2. The outside of the roller brush cylinder 3 is provided with brush bristles 4. The roller brush cylinder 3 is provided with multiple through holes penetrating its inner and outer walls. Both ends of the roller brush cylinder 3 are provided with multiple air inlets 31. One side of the air inlet 31 is provided with a fan blade 32 that can draw air into the roller brush cylinder 3 when the roller brush cylinder 3 rotates. The air drawn into the roller brush cylinder 3 is blown out through the through holes, which can blow away some of the fine materials adhering to the brush bristles 4.
[0014] Furthermore, the lower end of the dust cover 2 is hinged to one end of the turnbuckle tightener 5.
[0015] Furthermore, in the rotation direction of the roller brush cylinder 3, the end of the fan blade 32 away from the axis of the roller brush cylinder 3 is in front of the other end, so that when the roller brush cylinder 3 rotates, air can be drawn into the interior of the roller brush cylinder 3. Since both ends of the roller brush cylinder 3 are inwardly air-intake, the airflow entering the interior of the roller brush cylinder 3 will flow towards the center of the roller brush cylinder 3. During this process, the airflow is blown outward from the through hole. In the rotation direction of the roller brush cylinder 3, the side of the fan blade 32 away from the dust cover 2 is behind the other side, which helps the airflow to flow towards the center of the roller brush cylinder 3.
[0016] In use, the bearing housing 6 is installed on the bottom surface of the belt conveyor frame. The return belt passes between the drive roller 1 and the brush cylinder 3. The drive roller 1 contacts the upper surface of the return belt. The turnbuckle tightener 5 is connected to the belt conveyor frame via a wire rope. Tightening the turnbuckle tightener 5 causes the dust cover 2 to tilt to a certain extent, allowing the brush bristles 4 to contact the lower surface of the return belt with a certain force. When the belt conveyor is running, the return belt drives the drive roller 1 to rotate. The rotation of the drive roller 1 drives the brush cylinder 3 to rotate in the opposite direction to the movement of the return belt, thus allowing the brush bristles 4 to clean the lower surface of the return belt.
Claims
1. A passive brush cleaner, comprising a drive roller (1), characterized in that: Dust covers (2) are rotatably connected to both ends of the transmission roller (1). The two dust covers (2) are also rotatably connected to both ends of the brush cylinder (3). Both ends of the transmission roller (1) and the brush cylinder (3) are provided with sprockets, and the two sprockets on the same side are connected by chain drive. Both ends of the transmission roller (1) are also rotatably connected with bearing seats (6). The brush cylinder (3) is provided with bristles (4) on the outside. The brush cylinder (3) is provided with multiple through holes penetrating its inner and outer walls. Both ends of the brush cylinder (3) are provided with multiple air inlets (31). One side of the air inlet (31) is provided with a fan blade (32) that can draw air into the brush cylinder (3) when the brush cylinder (3) rotates.
2. The passive brush cleaner according to claim 1, characterized in that: The lower end of the dust cover (2) is hinged to one end of the turnbuckle tightener (5).
3. A passive brush cleaner according to any one of claims 1-2, characterized in that: In the rotation direction of the roller brush cylinder (3), one end of the fan blade (32) away from the axis of the roller brush cylinder (3) is in front of the other end, and in the rotation direction of the roller brush cylinder (3), the side of the fan blade (32) away from the dust cover (2) is behind the other side.
Citation Information
Patent Citations
Passive hairbrush sweeper
CN202864389U