Anti-jamming dust cleaner brush head

Abstract

The utility model relates to dust collector ground brush head technical field, propose a kind of anti-jamming dust collector ground brush head, including brush head shell, the both ends of brush head shell are connected with cover plate. The utility model has the beneficial effect that: by being able to reciprocating drive in the dust collector pivot both ends and being set limit rod, rack and first gear linkage's blade, break the traditional blade and pivot relative static design, make blade continue reciprocating motion in through-hole and subsided groove, form the cutting area of the outer end of pivot, to be able to cut off in time when hair has not formed firm winding, ensure that hair cannot continue to accumulate, greatly reduce the risk of ground brush head jamming;While blade adopts double-sided blade design, reciprocating movement process all have cutting effect, combine through-hole and subsided groove matching structure and axial length optimization layout, not only cutting surface is sufficient and uniform, also avoid cutting dead angle, overall improve the self-cleaning ability and durability of dust collector ground brush head, significantly prolong service life.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaner floor brush heads, specifically, to a vacuum cleaner floor brush head that prevents jamming. Background Technology

[0002] Modern vacuum cleaners are incredibly powerful, capable of removing dust, purifying the air, cleaning tiny dust and debris from corners, and cleaning floors more thoroughly. They also save time, reduce household chores, and shorten cleaning time. The floor brush head is an important component of a vacuum cleaner. However, in actual use, existing floor brush heads rely on a rotating shaft on the upper cylinder of the vacuum cleaner for cleaning. Over time, hair can easily get caught on the shaft surface. When it accumulates to a certain thickness, it can cause the floor brush head to jam and become unable to operate, significantly affecting its practicality.

[0003] A search of Chinese utility model patent (publication number CN222018225U) reveals a vacuum cleaner floor brush head designed to prevent jamming. The cutting component can be retracted or extended via a drive assembly, and can also easily cut hair on the connecting shaft, effectively solving the problem of vacuum cleaner floor brush heads getting stuck. Compared to traditional cleaning methods, this brush head has a self-cleaning function to ensure the smooth operation of the vacuum cleaner floor brush head, thereby greatly extending the service life of the floor brush head.

[0004] However, practical application has revealed that this technical solution still has at least the following drawbacks:

[0005] In this design, multiple blades rotate synchronously with the shaft, while the blades remain relatively stationary. This design does cut hair that is about to get tangled on the shaft, but it cannot separate hair that is already tangled on the shaft. Therefore, there is still a significant risk of the blades getting stuck during long-term use. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model discloses a vacuum cleaner brush head that prevents jamming.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vacuum cleaner floor brush head that prevents jamming. By setting reciprocating limit rods and blades linked to a rack and a first gear at both ends of the vacuum cleaner's rotating shaft, this design breaks away from the traditional static design where the blades and the rotating shaft are relatively stationary. The blades continuously reciprocate within the through hole and the recessed groove, forming a cutting area covering the outer end of the rotating shaft. This allows for timely cutting before hair becomes firmly entangled, preventing hair from accumulating and greatly reducing the risk of the brush head jamming. At the same time, the blades adopt a double-edged design, providing a cutting effect during reciprocating motion. Combined with the matching structure of the through hole and the recessed groove and the optimized axial length layout, the cutting surface is not only sufficient and uniform but also avoids cutting dead angles. Overall, this improves the self-cleaning ability and durability of the vacuum cleaner floor brush head, significantly extending its service life.

[0008] Therefore, the technical solution adopted is as follows:

[0009] A vacuum cleaner brush head designed to prevent jamming includes a brush head housing. Both ends of the brush head housing are connected to cover plates. A pair of cover plates, each with a rotating shaft integrally formed at its opposite ends, are coaxially arranged. A recessed groove is formed on each cover plate. A through hole communicating with the recessed groove is formed on each rotating shaft. A pair of first gears are rotatably connected to the inner wall of the recessed groove. A blade is connected to each of the first gears. A pair of limiting blocks are connected to the inner wall of the brush head housing. Limiting rods are slidably connected to each limiting block. A rack is connected to the opposite ends of each pair of limiting rods. A movable groove matching the rack is formed on the inner wall of the through hole. The rack passes through the cover plate and extends into the recessed groove and the movable groove, respectively. The pair of first gears are located on both sides of the rack and mesh with it. A drive assembly is provided within the inner cavity of the brush head housing. The drive assembly drives the pair of limiting rods to reciprocate synchronously in opposite directions.

[0010] Furthermore, the drive assembly includes a motor, a second gear, and a pair of third gears. The motor is connected to the inner wall of the brush head housing. The second gear is connected to the output end of the motor. The pair of third gears are arranged opposite to the second gear, and both of the second gears are rotatably connected to the brush head housing and mesh with the second gear.

[0011] Furthermore, each of the top edges of the pair of third gears is rotatably connected to a connecting rod, and the ends of the pair of connecting rods away from the third gears are respectively rotatably connected to a pair of limiting rods.

[0012] Furthermore, the axis of the rotating shaft is perpendicular to the center of the vertical section of the sinking trough.

[0013] Furthermore, the center line of the through hole coincides with the axis of the rotating shaft.

[0014] Furthermore, the inner cavities of the recessed groove and the through hole are both matched to the blade.

[0015] Furthermore, the axial length of the through hole is not less than 90% of the axial length of the shaft.

[0016] Furthermore, both ends of the blade are machined with cutting edges.

[0017] This utility model achieves the following beneficial effects:

[0018] This solution breaks away from the traditional design where the blade and shaft are relatively stationary. By incorporating reciprocating limit rods and a rack-and-pinion linkage blade at both ends of the vacuum cleaner's rotating shaft, the blade continuously reciprocates within the through-hole and recessed groove, creating a cutting area covering the outer end of the shaft. This allows for timely cutting before hair becomes firmly entangled, preventing hair accumulation and significantly reducing the risk of the brush head getting stuck. Furthermore, the blade's double-edged design ensures cutting effectiveness throughout the reciprocating motion. Combined with the matching structure of the through-hole and recessed groove and optimized axial length, the cutting surface is not only thorough and uniform but also avoids dead angles. Overall, this enhances the self-cleaning ability and durability of the vacuum cleaner's brush head, significantly extending its service life.

[0019] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the internal structure of the brush head housing in this application;

[0023] Figure 3 This is a schematic cross-sectional view of the cover plate and pivot shaft of this application;

[0024] Figure 4 This is a schematic diagram of a partial explosion structure in this application.

[0025] In the diagram: 1. Brush head housing; 2. Cover plate; 3. Rotating shaft; 4. Sinking groove; 5. Through hole; 6. Movable groove; 7. Limiting rod; 8. Rack; 9. Blade; 10. First gear; 11. Limiting block; 12. Motor; 13. Second gear; 14. Third gear; 15. Connecting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Example

[0029] Modern vacuum cleaners are incredibly powerful, capable of removing dust, purifying the air, cleaning tiny dust and debris from corners, and cleaning floors more thoroughly. They also save time, reduce household chores, and shorten cleaning time. The floor brush head is an important component of a vacuum cleaner. However, in actual use, existing floor brush heads rely on a rotating shaft on the upper cylinder of the vacuum cleaner for cleaning. Over time, hair can easily get caught on the shaft surface. When it accumulates to a certain thickness, it can cause the floor brush head to jam and become unable to operate, significantly affecting its practicality.

[0030] The comparative case demonstrates how the drive component allows the cutting component to be brought in or removed, and how the cutting component can easily cut hair on the connecting shaft, effectively solving the problem of the vacuum cleaner's brush head getting stuck. Compared to traditional cleaning methods, this brush head has a self-cleaning function to ensure the smooth operation of the vacuum cleaner's brush head, thereby greatly extending the lifespan of the brush head.

[0031] However, practical application has revealed that this technical solution still has at least the following drawbacks:

[0032] In this design, multiple blades rotate synchronously with the shaft, while the blades remain relatively stationary. This design does cut hair that is about to get tangled on the shaft, but it cannot separate hair that is already tangled on the shaft. Therefore, there is still a significant risk of the blades getting stuck during long-term use.

[0033] Therefore, this utility model provides a vacuum cleaner brush head that prevents jamming, breaking away from the traditional design where the blade and the shaft are relatively stationary. It enables timely and continuous cutting of hair, preventing hair from getting tangled on the shaft and reducing the probability of the brush head jamming.

[0034] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0035] like Figure 1-4 As shown, a vacuum cleaner brush head designed to prevent jamming includes a brush head shell 1. Both ends of the brush head shell 1 are connected to cover plates 2. A pair of cover plates 2, at opposite ends, are integrally formed with rotating shafts 3. The pair of rotating shafts 3 are coaxially arranged. A recessed groove 4 is provided on the cover plate 2. A through hole 5 communicating with the recessed groove 4 is provided on the rotating shaft 3. A pair of first gears 10 are rotatably connected to the inner wall of the recessed groove 4. A blade 9 is connected to the first gear 10. A pair of limiting blocks 11 are connected to the inner wall of the brush head shell 1. Limiting rods 7 are slidably connected to the limiting blocks 11. A rack 8 is connected to the opposite ends of the pair of limiting rods 7. A movable groove 6 matching the rack 8 is provided on the inner wall of the through hole 5. The rack 8 passes through the cover plate 2 and extends into the recessed groove 4 and the movable groove 6, respectively. The pair of first gears 10 are located on both sides of the rack 8 and are meshed with it. A drive assembly is provided inside the brush head shell 1. The drive assembly is used to drive the pair of limiting rods 7 to reciprocate synchronously in opposite directions.

[0036] In this embodiment, during the process of the brush head housing 1 rotating to clean dust, hair is easily entangled on the rotating shaft 3. The accumulated hair is difficult to remove and can easily cause jamming between the rotating shaft 3 and the vacuum cleaner body. In this solution, during the rotation of the brush head housing 1, the drive component continuously drives a pair of limiting rods 7 to reciprocate, so that the limiting rods 7 slide back and forth on the limiting block 11, and then drive multiple first gears 10 to rotate through the rack 8. A pair of first gears 10 in the same sinking groove 4 rotate synchronously in opposite directions under the action of the rack 8. The rotation of the first gears 10 can drive the blades 9 to rotate, so that the blades 9 move back and forth between the through hole 5 and the inner cavity of the sinking groove 4. A fan-shaped area spanning the cover plate 2 and the rotating shaft 3 is formed in the range of movement of the blades 9. During the process, the hair wrapped around the outer end of the rotating shaft 3 can be effectively cut off, so that the hair falls off before it becomes entangled and cannot be continuous.

[0037] The drive assembly includes a motor 12, a second gear 13, and a pair of third gears 14. The motor 12 is connected to the inner wall of the brush head housing 1. The second gear 13 is connected to the output end of the motor 12. The pair of third gears 14 are arranged opposite to the second gear 13, and both of the second gears 13 are rotatably connected to the brush head housing 1 and meshing with the second gear 13. Connecting rods 15 are rotatably connected to the edge of the top of each pair of third gears 14. The ends of the pair of connecting rods 15 away from the third gears 14 are rotatably connected to a pair of limiting rods 7 respectively.

[0038] In this embodiment, the working principle of the drive component is as follows: the starting motor 12 drives the second gear 13 to rotate, and then the second gear 13 drives a pair of third gears 14 to rotate continuously. As the third gear 14 rotates, it can drive the connecting rod 15 to move, and then push the limiting rod 7 to slide on the limiting block 11, and then move the rack 8 to move back and forth between a pair of first gears 10.

[0039] The axis of the rotating shaft 3 is perpendicular to the center of the vertical section of the sinking trough 4, and the center line of the through hole 5 coincides with the axis of the rotating shaft 3.

[0040] In this embodiment, the center line of the through hole 5 coincides with the axis of the rotating shaft 3, which makes a pair of blades 9 symmetrically arranged along the axis of the cover plate 2. The distance between the pair of blades 9 on the circumferential trajectory of the rotating shaft 3 is the longest, so that the hair can be cut into a more uniform length during the movement, which is beneficial to the hair falling out.

[0041] The inner cavity shapes of the recessed groove 4 and the through hole 5 are both matched with the blade 9.

[0042] In this embodiment, the inner cavity shapes of the recessed groove 4 and the through hole 5 are matched with the blade 9, which can reduce the gap generated when the blade 9 is located in the inner cavity of the recessed groove 4 and the through hole 5, and reduce the possibility of debris getting stuck in the inner cavity of the recessed groove 4 or the through hole 5. At the same time, when the blade 9 enters the recessed groove 4 and the through hole 5, it can form a better cutting surface with the edge position of the recessed groove 4 and the through hole 5, thereby improving the cutting effect on hair.

[0043] The axial length of the through hole 5 is not less than 90% of the axial length of the shaft 3.

[0044] In this embodiment, the axial length of the through hole 5 is set to 95% of the axial length of the shaft 3. This length setting ensures that the through hole 5 can cut most of the hair wrapped around the surface of the shaft 3 during movement, reducing the existence of dead angles and ensuring the cutting effect.

[0045] Both ends of the blade 9 are machined with cutting edges.

[0046] In this embodiment, the double-edged design of the blade 9 allows it to cut back and forth during movement, preventing new hair from getting tangled on the rotating shaft 3 and making it impossible for the blade back to cut, thus improving the practicality of the structure.

[0047] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A vacuum cleaner brush head designed to prevent jamming, characterized in that: Includes a brush head housing (1), both ends of which are connected to cover plates (2). A pair of cover plates (2) are integrally formed with rotating shafts (3) at opposite ends. The pair of rotating shafts (3) are coaxially arranged. A recessed groove (4) is provided on the cover plate (2). A through hole (5) communicating with the recessed groove (4) is provided on the rotating shaft (3). A pair of first gears (10) are rotatably connected to the inner wall of the recessed groove (4). A blade (9) is connected to the first gear (10). A pair of limiting blocks (11) are connected to the inner wall of the brush head housing (1). 11) A sliding connection is provided with a limiting rod (7). A pair of limiting rods (7) are connected to a rack (8) at one end away from each other. The inner wall of the through hole (5) is provided with a movable groove (6) that matches the rack (8). The rack (8) passes through the cover plate (2) and extends into the recessed groove (4) and the movable groove (6) respectively. A pair of first gears (10) are located on both sides of the rack (8) and are meshed with the rack (8). The inner cavity of the brush head shell (1) is provided with a driving assembly. The driving assembly is used to drive a pair of limiting rods (7) to move synchronously in opposite directions.

2. The anti-jamming vacuum cleaner brush head according to claim 1, characterized in that: The drive assembly includes a motor (12), a second gear (13) and a pair of third gears (14). The motor (12) is connected to the inner wall of the brush head housing (1). The second gear (13) is connected to the output end of the motor (12). The pair of third gears (14) are arranged opposite to the second gears (13). Both of the second gears (13) are rotatably connected to the brush head housing (1) and are meshed with the second gears (13).

3. The anti-jamming vacuum cleaner brush head according to claim 2, characterized in that: Each of the top edges of the pair of third gears (14) is rotatably connected to a connecting rod (15), and the ends of the pair of connecting rods (15) away from the third gears (14) are respectively rotatably connected to a pair of limiting rods (7).

4. The anti-jamming vacuum cleaner brush head according to claim 1, characterized in that: The axis of the rotating shaft (3) is perpendicular to the center of the vertical section of the sinking trough (4).

5. A vacuum cleaner brush head for preventing jamming according to claim 1, characterized in that: The centerline of the through hole (5) coincides with the axis of the rotating shaft (3).

6. The anti-jamming vacuum cleaner brush head according to claim 1, characterized in that: The inner cavity shapes of the sink groove (4) and the through hole (5) are matched with the blade (9).

7. A vacuum cleaner brush head for preventing jamming according to claim 1, characterized in that: The axial length of the through hole (5) is not less than 90% of the axial length of the shaft (3).

8. A vacuum cleaner brush head for preventing jamming according to claim 1, characterized in that: Both ends of the blade (9) are machined with cutting edges.

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