Side brush device for sweeping robot

Abstract

The utility model relates to the technical field of cleaning equipment, and discloses a side brush device for a sweeping robot, which is assembled below a machine shell of the sweeping robot and comprises a side brush component, a first gap is formed between the connecting base and the machine shell, and a second gap is formed between the connecting base and the machine shell. A blocking structure is arranged on the side, away from the brush, of the connecting base, the linear distance from the edge of the blocking structure to the center line of the connecting base is larger than the radius of the connecting base, and the blocking structure is located in the first gap. The driving assembly is connected with the connecting base and drives the connecting base to drive the brush to rotate along the axis of the brush. When the connecting base rotates, the blocking piece can form an annular ring larger than the diameter of the connecting base on the connecting base. According to the side brush device for the sweeping robot, the transmission structure can be prevented from being wound by sundries in the working process, and the side brush device is simple in structure and easy to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and in particular relates to a side brush device for a sweeping robot. Background Art

[0002] With the advancement of technology, more and more cleaning equipment is becoming increasingly automated and intelligent. Robotic sweepers, as a type of intelligent cleaning device, leverage artificial intelligence to automatically clean floors in a room. Existing robot vacuums primarily clean the floor by brushing and vacuuming, sucking debris into a built-in trash collection bin.

[0003] However, in order to ensure the flexibility of the side brush rotation, a gap is usually designed between the side brush and the body shell of this type of sweeping robot. Although this design improves the working efficiency of the side brush, it also makes the side brush shaft easily affected by entanglement during operation. For example, it may be entangled by long hair on the carpet in a home environment or a shopping mall, or it may be entangled by threads, rags and other debris on the ground in special places such as clothing manufacturing factories. When the side brush shaft is entangled, it not only interferes with the smooth progress of the cleaning work, but also requires the machine to be interrupted to manually remove the entanglement when necessary. This situation not only reduces the working efficiency of the sweeping robot and increases the maintenance burden of the user, but also has a negative impact on the service life of the sweeping robot. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems in the prior art and to provide a side brush device for a sweeping robot that can prevent the transmission structure from being entangled by debris during operation and has a simple structure and is easy to disassemble and assemble.

[0005] The purpose of the utility model can be achieved by the following technical solutions: a side brush device for a sweeping robot, which is assembled under the housing of the sweeping robot, and the side brush device includes:

[0006] A side brush assembly, the side brush assembly comprising a brush and a connecting seat, the brush being mounted on the connecting seat, a first gap being defined between the connecting seat and the housing, and a barrier structure being provided on a side of the connecting seat facing away from the brush, wherein a straight-line distance from an edge of the barrier structure to a centerline of the connecting seat is greater than a radius of the connecting seat, and the barrier structure is located within the first gap;

[0007] A driving assembly is connected to the connecting seat and drives the connecting seat to drive the brush to rotate along its own axis; when the connecting seat rotates, the blocking member can form an annular ring on the connecting seat that is larger than the diameter of the connecting seat.

[0008] In the above-mentioned side brush device for a sweeping robot, the blocking structure extends circumferentially along the connecting seat and forms an extension portion, the extension portion forms a convex portion in a direction away from the connecting seat, and there is a height difference between the convex portion and the connecting seat.

[0009] In the above-mentioned side brush device for a sweeping robot, the blocking structure also includes a reinforcing portion that is fittedly connected to the connecting seat, the two ends of the reinforcing portion are respectively connected to the two ends of the extension portion, and the reinforcing portion is located between the center line of the connecting seat and the extension portion.

[0010] In the above-mentioned side brush device for a sweeping robot, a second gap is provided between the reinforcing portion and the extending portion, and the blocking structure and the connecting seat are integrally formed.

[0011] In the above-mentioned side brush device for a sweeping robot, the barrier structures are provided in two groups and are symmetrically arranged along the center line of the connecting seat, and a third gap for installing the driving assembly is provided between the two groups of barrier structures.

[0012] In the above-mentioned side brush device for a sweeping robot, the driving assembly includes a power structure and a transmission structure. One end of the transmission structure is rotatably connected to the power structure, and the other end is detachably connected to the connecting seat. When the power structure is started, the connecting seat rotates synchronously with the transmission structure.

[0013] In the above-mentioned side brush device for a sweeping robot, a snap-fit ​​structure is further provided on the connecting seat, and the snap-fit ​​structure is located between the two groups of the barrier structures. The transmission structure includes a rotating part and a fixed base. One end of the rotating part is rotatably connected to the power structure, and the other end is fixed to the fixed base. A snap-fit ​​structure is detachably provided on the fixed base, and the snap-fit ​​structure forms a snap-fit ​​fit with the snap-fit ​​structure.

[0014] In the above-mentioned side brush device for a sweeping robot, the clamping structure includes a first clamping portion and a second clamping portion, and the snap structure includes a first clamping member clamped to the first clamping portion, and a second clamping member clamped to the second clamping portion, wherein the first clamping portion can limit the movement of the transmission structure in the Y-axis and Z-axis directions, and the second clamping portion can limit the movement of the transmission structure in the X-axis direction.

[0015] In the above-mentioned side brush device for a sweeping robot, two groups of the first clamping part and the second clamping part are provided, the first clamping part is a groove extending in the horizontal direction of the connecting seat, and the second clamping part is a protrusion extending in the vertical direction of the connecting seat, and two groups of the first clamping parts are provided, which correspond one-to-one with the two groups of the first clamping parts and form a sliding connection, and the second clamping part is movably provided on the fixed base and can move relative to the second clamping part.

[0016] In the above-mentioned side brush device for a sweeping robot, the two groups of the second clamping portions are relatively arranged between the two groups of the first clamping portions and are perpendicular to the first clamping portions, and there is a fourth gap between the two groups of the second clamping portions.

[0017] Compared with the prior art, the present invention has the following beneficial effects: by providing a barrier structure on the connecting base, the straight-line distance from the edge of the barrier structure to the centerline of the connecting base is greater than the radius of the connecting base, and the barrier structure is located within the first gap. This allows the side brush device to reduce the size of the first gap while ensuring stable rotation of the side brush assembly. Furthermore, the rotation of the connecting base protects the transmission structure, effectively preventing debris from entering the top of the connecting base through the first gap and becoming entangled with the transmission structure. This not only ensures the stability of the robot vacuum's operation and improves its efficiency, but also reduces the user's maintenance burden and increases the robot vacuum's service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the side brush device in an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of the side brush device in an embodiment of the present invention.

[0020] Figure 3 It is a cross-sectional view of the side brush device in an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the state where the side brush device of an embodiment of the utility model is assembled on a sweeping robot.

[0022] In all the drawings, the same figure marks represent the same technical features, specifically: 100, brush; 200, connecting seat; 300, barrier structure; 310, extension part; 320, convex part; 330, reinforcement part; 400, power structure; 500, transmission structure; 510, rotating part; 520, fixed base; 600, clamping structure; 610, first clamping part; 620, second clamping part; 630, inclined surface; 700, snap structure; 710, first clamping part; 720, second clamping part; 721, paddle; 722, limiting part; 730, fixing plate; 731, movable groove; 800, first gap; 810, second gap; 820, third gap; 830, fourth gap; 900, casing. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] like Figures 1 to 4 As shown, a side brush device for a sweeping robot includes a brush 100 , a connecting seat 200 , a blocking structure 300 , a power structure 400 , a transmission structure 500 , a clamping structure 600 and a buckle structure 700 .

[0026] like Figures 1 to 4 As shown, a side brush device for a sweeping robot is assembled under the housing 900 of the sweeping robot, and the side brush device includes:

[0027] A side brush assembly includes a brush 100 and a connecting base 200. The brush 100 is disposed on the connecting base 200. A first gap 800 is defined between the connecting base 200 and the housing 900. A barrier structure 300 is provided on the side of the connecting base 200 facing away from the brush 100. The straight-line distance between the edge of the barrier structure 300 and the centerline of the connecting base 200 is greater than the radius of the connecting base 200, and the barrier structure 300 is located within the first gap 800.

[0028] The drive assembly is connected to the connecting base 200 and drives the connecting base 200 to rotate the brush 100 along its own axis. When the connecting base 200 rotates, the barrier structure 300 forms an annular ring on the connecting base 200 that is larger than the diameter of the connecting base 200. This design reduces the size of the first gap 800 while ensuring the stable rotation of the side brush assembly. The rotation of the connecting base 200 protects the transmission structure 500, effectively preventing debris from entering the upper part of the connecting base 200 through the first gap 800 and becoming entangled with the transmission structure 500. On the one hand, this ensures the stability of the robot vacuum and improves its work efficiency. On the other hand, it reduces the burden on users to maintain the robot vacuum and increases its service life.

[0029] Specifically, if Figures 1 to 3 As shown, in this embodiment, the side brush device includes a drive assembly and a side brush assembly connected in sequence from top to bottom, wherein the drive assembly is mainly a power mechanism for driving the side brush assembly to rotate, so that the side brush assembly can clean debris by automatic rotation.

[0030] In this embodiment, the side brush assembly includes a brush 100 and a connecting seat 200 . The brush 100 is composed of a plurality of bristles, and the plurality of bristles are distributed in a circular shape along the circumference of the connecting seat 200 and are fixedly connected to the connecting seat 200 .

[0031] In this embodiment, the connecting seat 200 is circular, and a blocking structure 300 is provided on the side away from the brush 100. The blocking structure 300 is provided at the extension of the connecting seat 200. The straight-line distance from the edge of the blocking structure 300 to the center line of the connecting seat 200 is greater than the radius of the connecting seat 200, and the blocking structure 300 is located in the first gap 800 to reduce the size of the first gap 800, thereby achieving the barrier to debris.

[0032] In this embodiment, the barrier structure 300 extends circumferentially along the connecting base 200 and is formed with an extension portion 310. This extension portion 310 has a protrusion 320 formed in a direction away from the connecting base 200, with a height difference between the protrusion 320 and the connecting base 200. The design of the extension portion 310 ensures that the barrier structure 300 effectively blocks the rotation of the side brush assembly. The design of the protrusion 320 also allows the barrier structure 300 to have a certain width and height. This allows the barrier structure 300 to reduce the size of the first gap 800 while also preventing interference with the rotation of the side brush assembly. This allows the barrier structure 300 to better block debris and further enhance the anti-entanglement effect.

[0033] It is worth noting that the design of the protrusion 320 enables the barrier structure 300 to form an annular ring larger than the diameter of the connecting seat 200 along the rotation trajectory of the connecting seat 200 when driven by the high-speed rotation of the transmission structure 500. Therefore, even if there is a gap between the two sets of barrier structures 300, it will not affect the barrier structure 300 from blocking debris when the equipment is in working condition.

[0034] Preferably, in this embodiment, the extension portion 310 is designed as a curved surface with an angle greater than 90°. This design not only facilitates the manufacture and production of the barrier structure 300 but also avoids stress concentration. This effectively improves the production efficiency and quality of the barrier structure 300, ensuring the reliability and durability of the structure.

[0035] In this embodiment, the barrier structure 300 also includes a reinforcement portion 330 that is in close contact with the connection base 200. This reinforcement portion 330 is linear in design, with its ends connected to the ends of the extension portion 310, respectively. The reinforcement portion 330 is located between the centerline of the connection base 200 and the extension portion 310. This design, by ensuring the close contact between the reinforcement portion 330 and the connection base 200, ensures the integrity of the barrier structure 300. When subjected to external forces, the reinforcement portion 330 can transmit force to different locations on the connection base 200, allowing the connection base 200 and the barrier structure 300 to resist deformation as a whole. This not only improves the stability of the barrier structure 300, but also enhances its impact resistance. Furthermore, the connection between the reinforcement portion 330 and the extension portion 310 forms a closed support structure for the barrier structure 300. This not only increases the rigidity of the barrier structure 300, making it less susceptible to deformation under external forces, but also avoids localized stress concentration, further enhancing the structural stability and reliability.

[0036] In this embodiment, a second gap 810 is defined between the reinforcing portion 330 and the extending portion 310, and the barrier structure 300 is integrally formed with the connecting base 200. The design of the second gap 810 disperses the forces acting on the connecting base 200, preventing the connecting base 200 from tilting due to excessively concentrated forces. Furthermore, the integral design of the barrier structure 300 and the connecting base 200 further enhances the reliability and durability of the overall structure and reduces assembly errors.

[0037] In this embodiment, two sets of barrier structures 300 are provided, symmetrically arranged along the centerline of the connecting base 200. A third gap 820 is defined between the two sets of barrier structures 300, allowing for the installation of the drive assembly. This design, by increasing the coverage area of ​​the barrier structures 300, avoids the problem of a single barrier structure 300 failing to fully cover the path of debris, further reducing the risk of debris intrusion. Furthermore, it provides more stable force distribution on the connecting base 200 and simplifies its molding. Furthermore, the third gap 820 provides space for the drive assembly, ensuring the compactness and rationality of the overall structure of the side brush device.

[0038] In this embodiment, a snap-fit ​​structure 600 is further provided on the connecting seat 200. The snap-fit ​​structure 600 is located between the two groups of barrier structures 300 and forms a snap-fit ​​fit with the snap structure 700, thereby making the connection between the connecting seat 200 and the transmission structure 500 more stable and reliable. At the same time, it also facilitates the rapid disassembly and assembly between the connecting seat 200 and the transmission structure 500, effectively improving the convenience of maintenance.

[0039] In this embodiment, the clamping structure 600 includes a first clamping portion 610 and a second clamping portion 620. The first clamping portion 610 is clamped to the first clamping member 710, and the second clamping portion 620 is clamped to the second clamping member 720. The first clamping portion 610 can limit the movement of the transmission structure 500 in the Y-axis and Z-axis directions, while the second clamping portion 620 can limit the movement of the transmission structure 500 in the X-axis direction. This design further ensures the reliability and precision of the connection between the connecting base 200 and the transmission structure 500 by limiting the position of the connected transmission structure 500 in multiple directions, ensuring the multi-directional stability of the transmission structure 500, effectively preventing the connecting base 200 from falling off when the transmission structure 500 is operating at high speed, and thus effectively ensuring the stability of the side brush device.

[0040] In this embodiment, two sets of first and second engaging portions 610 and 620 are provided. The first engaging portion 610 is a groove extending horizontally along the connecting base 200, and the second engaging portion 620 is a protrusion extending vertically along the connecting base 200. The protrusion cooperates with the connecting base 200 to form an L-shaped step that can engage with the second engaging member 720. This design further ensures the reliability and stability of the connection between the connecting base 200 and the transmission structure 500, while also forming a reasonable engagement between the two.

[0041] In this embodiment, the two sets of second clamping portions 620 are arranged between the two sets of first clamping portions 610 and are perpendicular to the first clamping portions 610, wherein a fourth gap 830 is provided between the two sets of second clamping portions 620. This design effectively ensures the compactness of the clamping structure 600 and the convenience of molding.

[0042] In this embodiment, the drive assembly includes a power structure 400 and a transmission structure 500. One end of the transmission structure 500 is rotatably connected to the power structure 400, and the other end is detachably connected to the connecting base 200. When the power structure 400 is activated, the connecting base 200 rotates synchronously with the transmission structure 500. This design not only ensures the flexibility and reliability of the transmission, while achieving efficient power transmission, but also improves the convenience of disassembly, assembly, and maintenance of the side brush device.

[0043] In this embodiment, the power structure 400 includes a power source, a shell, and a driving wheel, a reduction wheel and a driven wheel arranged in the shell, wherein the power source is a driving motor, the output end of which passes through the shell and is connected to the driving wheel, and is connected to the driven wheel through the reduction wheel. The driven wheel is rotatably mounted on the rotating part 510 of the transmission structure 500, and under the drive of the driving wheel, the rotating part 510 is driven to drive the connecting seat 200 and the brush 100 to rotate.

[0044] In this embodiment, the transmission structure 500 includes an integrally formed rotating portion 510 and a fixed base 520. The rotating portion 510 is cylindrical, with one end sleeved onto the driven wheel to form a rotatable connection with the power structure 400, and the other end fixedly connected to the fixed base 520. The fixed base 520 is detachably provided with a snap structure 700, which forms a snap-fit ​​engagement with the connecting structure 600. This design not only improves the stability and reliability of the connection between the transmission structure 500 and the connecting base 200, but also facilitates disassembly, assembly, and maintenance.

[0045] In this embodiment, the snap-fit ​​structure 700 includes a first snap-fit ​​member 710 snap-fitted to the first snap-fit ​​portion 610, and a second snap-fit ​​member 720 snap-fitted to the second snap-fit ​​portion 620. The first snap-fit ​​member 710 is detachably connected to the fixed base 520 via bolts, and the second snap-fit ​​member 720 is movably connected to the fixed base 520 via a fixing plate 730. The fixing plate 730 is detachably connected to the fixed base 520 via bolts, and the fixing plate 730 has a movable groove 731 for movement of the second snap-fit ​​member 720. This design ensures that the snap-fit ​​structure 600 can simultaneously ensure easy assembly and disassembly while achieving multi-directional positioning of the transmission structure 500.

[0046] Preferably, in this embodiment, the first clamping member 710 is crescent-shaped, and its thickness is adapted to the size of the first clamping portion 610. The second clamping member 720 includes a limiting portion 722 that can move up and down in the movable groove 731, and a paddle 721 vertically connected to the limiting portion 722. The paddle 721 can drive the limiting portion 722 to move up and down in the movable groove 731 when manually toggled.

[0047] In this embodiment, the first clamping member 710 is provided in two groups, and corresponds one-to-one with the two groups of first clamping portions 610 to form a sliding connection. The second clamping member 720 is movably provided on the fixed base 520 and can move relative to the second clamping portion 620. When the first clamping member 710 moves into the first clamping portion 610, the first clamping portion 610 can limit the movement of the transmission structure 500 in the Y-axis and Z-axis directions; when the first clamping member 710 moves to the first clamping portion 610, the first clamping portion 610 can release the movement limit of the transmission structure 500 in the Y-axis and Z-axis directions; when the second clamping member 720 moves to a position of contact with the second clamping portion 620, the second clamping portion 620 can limit the movement of the transmission structure 500 in the X-axis direction; when the second clamping member 720 moves to a position separated from the second clamping portion 620, the second clamping portion 620 can release the movement limit of the transmission structure 500 in the X-axis direction. This design ensures the limiting effect of the transmission structure 500 in different directions and improves the stability and reliability of the overall structure. At the same time, the movable design of the second clamping member 720 can facilitate the user to quickly disassemble and assemble the transmission structure 500 and the connecting seat 200 and facilitate maintenance, effectively improving the user experience.

[0048] It should be noted that, in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0049] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A side brush device for a sweeping robot, mounted below the housing of the sweeping robot, characterized in that: The side brush device comprises: A side brush assembly, the side brush assembly comprising a brush and a connecting seat, the brush being mounted on the connecting seat, a first gap being defined between the connecting seat and the housing, and a barrier structure being provided on a side of the connecting seat facing away from the brush, wherein a straight-line distance from an edge of the barrier structure to a centerline of the connecting seat is greater than a radius of the connecting seat, and the barrier structure is located within the first gap; A driving assembly is connected to the connecting seat and drives the connecting seat to drive the brush to rotate along its own axis; when the connecting seat rotates, the blocking structure can form an annular ring on the connecting seat that is larger than the diameter of the connecting seat.

2. The side brush device for a sweeping robot according to claim 1, characterized in that: The blocking structure extends along the circumference of the connecting seat and forms an extension portion. The extension portion forms a convex portion in a direction away from the connecting seat, and there is a height difference between the convex portion and the connecting seat.

3. The side brush device for a sweeping robot according to claim 2, characterized in that: The barrier structure further includes a reinforcement portion that is closely connected to the connection seat, two ends of the reinforcement portion are respectively connected to two ends of the extension portion, and the reinforcement portion is located between the center line of the connection seat and the extension portion.

4. The side brush device for a sweeping robot according to claim 3, characterized in that: A second gap is defined between the reinforcing portion and the extending portion, and the blocking structure and the connecting seat are integrally formed.

5. The side brush device for a sweeping robot according to claim 1, characterized in that: The barrier structures are provided in two groups and are symmetrically arranged along the center line of the connecting seat, and a third gap for installing the driving assembly is provided between the two groups of barrier structures.

6. The side brush device for a sweeping robot according to claim 5, characterized in that: The driving assembly includes a power structure and a transmission structure. One end of the transmission structure is rotatably connected to the power structure, and the other end is detachably connected to the connecting seat. When the power structure is started, the connecting seat and the transmission structure rotate synchronously.

7. The side brush device for a sweeping robot according to claim 6, characterized in that: The connecting seat is also provided with a snap-fit ​​structure, which is located between the two groups of barrier structures. The transmission structure includes a rotating part and a fixed base. One end of the rotating part is rotatably connected to the power structure, and the other end is fixed to the fixed base. The fixed base is detachably provided with a snap-fit ​​structure, and the snap-fit ​​structure forms a snap-fit ​​fit with the snap-fit ​​structure.

8. The side brush device for a sweeping robot according to claim 7, characterized in that: The clamping structure includes a first clamping portion and a second clamping portion, and the snap structure includes a first clamping member clamped to the first clamping portion, and a second clamping member clamped to the second clamping portion, wherein the first clamping portion can limit the movement of the transmission structure in the Y-axis and Z-axis directions, and the second clamping portion can limit the movement of the transmission structure in the X-axis direction.

9. The side brush device for a sweeping robot according to claim 8, characterized in that: The first clamping portion and the second clamping portion are each provided with two groups, the first clamping portion is a groove extending in the horizontal direction of the connecting seat, and the second clamping portion is a protrusion extending in the vertical direction of the connecting seat, and the first clamping member is provided with two groups, corresponding one-to-one with the two groups of the first clamping portion and forming a sliding connection, and the second clamping member is movably provided on the fixed base and can move relative to the second clamping portion.

10. The side brush device for a sweeping robot according to claim 9, characterized in that: The two groups of the second clamping portions are relatively arranged between the two groups of the first clamping portions and are perpendicular to the first clamping portions, and a fourth gap is formed between the two groups of the second clamping portions.

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