A robot sweeper

Abstract

The utility model belongs to intelligent electrical apparatus technical field discloses a kind of sweeping robots, and sweeping robot includes chassis, disc brush and waterway pipe, disc brush includes support main body and the brush wire being arranged at the bottom of support main body, support main body is rotatably connected with chassis, the top of support main body is equipped with annular groove, the bottom of support main body is equipped with downspout being communicated with annular groove, and the center line of annular groove coincides with the rotation axis of support main body;Waterway pipe is arranged on chassis, and the water outlet of waterway pipe is arranged towards annular groove, and waterway pipe is configured to be used to spray cleaning fluid into annular groove by water outlet.The sweeping robot provided by the utility model can make cleaning fluid evenly cover on the ground, which is beneficial to reduce the probability of forming blank area on the ground, reduce the probability of forming indentation on the ground due to evaporation and drying of cleaning fluid, and improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of intelligent electrical appliance technology, and in particular to a sweeping robot. Background Technology

[0002] Robotic vacuum cleaners are a type of smart home appliance that can automatically clean the floor using certain artificial intelligence settings.

[0003] In related technologies, robotic vacuum cleaners typically include a water system and a disc brush. When the disc brush rotates at high speed, the bristles at the bottom of the brush create friction with the ground under certain pressure, thereby cleaning the floor. To improve cleaning effectiveness and efficiency, the water system simultaneously sprays cleaning fluid onto the disc brush. The cleaning fluid flows onto the floor through pre-set central holes on the disc brush. However, the area covered by the cleaning fluid is relatively small, and the bristles may leave blank areas on the floor, resulting in uneven distribution of the cleaning fluid. These blank areas have relatively poor cleaning performance and may exhibit color differences compared to other areas. Uneven distribution of the cleaning fluid can also leave irregular marks due to evaporation and drying, negatively impacting the customer experience. Utility Model Content

[0004] The purpose of this invention is to provide a sweeping robot that helps improve the uniformity of cleaning liquid coverage on the ground.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A robotic vacuum cleaner is provided, comprising:

[0007] Chassis;

[0008] A disc brush is located below the chassis. The disc brush includes a support body and brush bristles located at the bottom of the support body. The support body is rotatably connected to the chassis. The top of the support body is provided with an annular groove, and the bottom of the support body is provided with a drain hole communicating with the annular groove. The center line of the annular groove coincides with the rotation axis of the support body.

[0009] A water pipe is provided on the chassis, with the outlet of the water pipe facing the annular groove, and the water pipe is configured to spray cleaning liquid into the annular groove through the outlet.

[0010] Optionally, the disc brush is provided with at least one, each disc brush is provided with at least two water pipes, and the outlets of all the water pipes corresponding to the same disc brush are arranged at intervals along the circumference of the corresponding annular groove;

[0011] And / or, the support body is provided with a plurality of drainage holes spaced apart circumferentially along the annular groove.

[0012] Optionally, the top of the drain hole extends through the bottom surface of the annular groove.

[0013] Optionally, the bottom surface of the annular groove is provided with an inclined surface at the top of the drain hole that slopes inward toward the drain hole.

[0014] Optionally, the drainage hole is inclined from the top to the bottom in a direction away from the center line of the annular groove.

[0015] Optionally, the shape of the drainage hole is set to a fan-shaped ring.

[0016] Optionally, the outer arc edge of the top section of the drain hole coincides with the outer arc edge of the bottom surface of the annular groove;

[0017] And / or, the inner arc edge of the top section of the drain hole is spaced apart from the inner arc edge of the bottom surface of the annular groove.

[0018] Optionally, the projection of the outlet of the water pipe along the center line of the annular groove is located within the annular groove;

[0019] And / or, the centerline of the outlet of the water pipe is set at an acute angle to the bottom surface of the annular groove.

[0020] Optionally, the top of the support body is provided with a first ring portion and a second ring portion, the first ring portion is located outside the second ring portion, and the annular groove is formed between the first ring portion and the second ring portion.

[0021] Optionally, the disc brush further includes a retaining ring disposed at the top of the annular groove, and an annular water inlet is formed between the inner ring of the retaining ring and the inner ring of the annular groove. The water pipe is configured to spray cleaning fluid into the annular water inlet through the water outlet.

[0022] Beneficial effects: The sweeping robot provided by this utility model rotates the support body relative to the chassis when cleaning the floor, and the cleaning fluid is sprayed into the annular groove through the water outlet of the water pipe. The cleaning fluid in the annular groove flows onto the ground through the drain hole. The center line of the annular groove coincides with the rotation axis of the support body, while the drain hole deviates from the rotation axis of the support body. The cleaning fluid flows onto the ground along with the rotation of the support body, which helps improve the uniformity of the cleaning fluid distribution and increases the area covered by the cleaning fluid. Furthermore, the brush bristles sweep the cleaning fluid as the support body rotates relative to the chassis, making the cleaning fluid more evenly distributed on the ground. This helps reduce the probability of blank areas on the ground and the probability of marks formed due to the evaporation and drying of the cleaning fluid, thus improving the user experience. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the sweeping robot provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the disc brush provided by this utility model from one perspective;

[0025] Figure 3 This utility model provides Figure 2 Sectional view of AA;

[0026] Figure 4 This is a schematic diagram of the disc brush provided by this utility model from another perspective;

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the water outlet of the water pipe and the disc brush provided by this utility model. Figure 1 ;

[0028] Figure 6 This is a schematic diagram showing the positional relationship between the water outlet of the water pipe and the disc brush provided by this utility model. Figure 2 .

[0029] In the picture:

[0030] 100. Chassis;

[0031] 200. Disc brush; 210. Support body; 211. Annular groove; 2111. Inclined surface; 212. Drain hole; 213. First ring; 214. Second ring; 220. Brush bristles; 230. Retaining ring; 231. Annular water inlet; 240. Threaded connector;

[0032] 300. Water pipe; 310. Water outlet;

[0033] 400. Electric motor. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] Reference Figures 1 to 3 As shown, this embodiment provides a sweeping robot, including a chassis 100, a disc brush 200, and a water pipe 300. The disc brush 200 is located below the chassis 100 and includes a support body 210 and brush bristles 220 located at the bottom of the support body 210. The support body 210 is rotatably connected to the chassis 100. The top of the support body 210 has an annular groove 211, and the bottom of the support body 210 has a drain hole 212 communicating with the annular groove 211. The center line of the annular groove 211 coincides with the rotation axis of the support body 210. The water pipe 300 is located on the chassis 100, with its outlet 310 facing the annular groove 211. The water pipe 300 is configured to spray cleaning fluid into the annular groove 211 through the outlet 310.

[0039] When cleaning the floor, the support body 210 rotates relative to the chassis 100, and the cleaning fluid is sprayed into the annular groove 211 through the outlet 310 of the water pipe 300. The cleaning fluid in the annular groove 211 flows onto the floor through the drain hole 212. The center line of the annular groove 211 coincides with the rotation axis of the support body 210, while the drain hole 212 is offset from the rotation axis of the support body 210. The cleaning fluid flows onto the floor along with the rotation of the support body 210, which helps improve the uniformity of the cleaning fluid distribution and increases the area covered by the cleaning fluid. Furthermore, the brush bristles 220 sweep the cleaning fluid as the support body 210 rotates relative to the chassis 100, making the cleaning fluid more evenly distributed on the floor. This helps reduce the probability of blank areas forming on the floor and the probability of marks forming due to the evaporation and drying of the cleaning fluid, thus improving the user experience. Figure 3 O1 in the text refers to the center line of the annular groove 211.

[0040] In some embodiments, the robotic vacuum cleaner includes a water supply device (not shown) for supplying cleaning fluid to the water pipe 300. The water supply device is prior art and is not the focus of this application, so it will not be described further here.

[0041] In some embodiments, such as Figure 1 As shown, the sweeping robot includes a motor 400 mounted on a chassis 100, which drives the support body 210 to rotate relative to the chassis 100.

[0042] In some embodiments, such as Figure 2 As shown, the support body 210 is provided with a plurality of circumferentially spaced drainage holes 212 along the annular groove 211, which helps to improve the uniformity of the cleaning liquid falling onto the ground.

[0043] In some embodiments, such as Figure 3 As shown, the top of the drain hole 212 penetrates the bottom surface of the annular groove 211, which facilitates the flow of cleaning fluid in the annular groove 211 into the drain hole 212 and onto the ground. Furthermore, when the water supply device stops supplying cleaning fluid to the water pipe 300, the cleaning fluid in the annular groove 211 can be drained more promptly.

[0044] In some embodiments, such as Figure 3 As shown, the drainage holes 212 are inclined from top to bottom away from the center line of the annular groove 211. Combined with the centrifugal force of the supporting body 210 rotating relative to the chassis 100, this increases the area of ​​the cleaning liquid that falls onto the ground, allowing the cleaning liquid to be more evenly distributed on the ground under the sweeping action of the brush bristles 220. Figure 3 O2 in the text refers to the center line of drain hole 212.

[0045] In some embodiments, such as Figure 4As shown, the bottom surface of the annular groove 211 has an inclined surface 2111 at the top of the drain hole 212, which slopes inward toward the drain hole 212. This facilitates the flow of cleaning fluid in the annular groove 211 toward the drain hole 212 and onto the ground. Furthermore, when the water supply device stops supplying cleaning fluid to the water pipe 300, the cleaning fluid in the annular groove 211 can be drained more promptly. For example, a funnel shape can be formed between the inclined surface 2111 and the wall of the drain hole 212.

[0046] In some embodiments, such as Figure 4 As shown, the shape of the drain hole 212 is fan-shaped, that is, the drain hole 212 has a large size along the circumference of the annular groove 211, which is beneficial to improve the uniformity of the cleaning liquid falling on the ground.

[0047] In one feasible implementation, the outer arc edge of the top section of the drain hole 212 coincides with the outer arc edge of the bottom surface of the annular groove 211. Combined with the centrifugal force of the supporting body 210 rotating relative to the chassis 100, this facilitates the flow of cleaning liquid in the annular groove 211 into the drain hole 212 and onto the ground.

[0048] In one feasible implementation, the inner arc edge of the top section of the drain hole 212 is spaced apart from the inner arc edge of the bottom surface of the annular groove 211. When the cross-sectional area of ​​the drain hole 212 is constant, the circumferential dimension of the drain hole 212 along the annular groove 211 will be larger.

[0049] Of course, the shape of the drain hole 212 can also be circular, rectangular, elliptical or other shapes, and this embodiment does not limit it.

[0050] In some embodiments, such as Figure 3 and Figure 4 As shown, the top of the support body 210 is provided with a first ring portion 213 and a second ring portion 214. The first ring portion 213 is located outside the second ring portion 214. An annular groove 211 is formed between the first ring portion 213 and the second ring portion 214, which facilitates the molding and manufacturing of the support body 210 and saves materials.

[0051] In some embodiments, such as Figures 2 to 4 As shown, the disc brush 200 also includes a retaining ring 230, which is disposed at the top of the annular groove 211. An annular water inlet 231 is formed between the inner ring of the retaining ring 230 and the inner ring of the annular groove 211. The water pipe 300 is configured to spray cleaning fluid into the annular water inlet 231 through the water outlet 310, so that the cleaning fluid falls into the annular groove 211. In this embodiment, the retaining ring 230 helps to reduce the probability of cleaning fluid splashing outside the annular groove 211. It is understood that the annular water inlet 231 is formed between the retaining ring 230 and the second ring portion 214.

[0052] In one feasible implementation, the retaining ring 230 can be fixed to the support body 210 by means of threaded fastening.

[0053] For example, the retaining ring 230 has multiple through holes (not shown) along the circumference, and the disc brush 200 also includes threaded members 240 corresponding to the through holes one by one. The threaded members 240 pass through the corresponding through holes and are threadedly connected to the support body 210. For example, the threaded members 240 are threadedly connected to the first ring portion 213. The threaded members 240 can be bolts, such as Phillips head bolts.

[0054] In some embodiments, such as Figure 1 and Figure 5 As shown, at least one disc brush 200 is provided. When the number of disc brushes 200 is greater than one, the cleaning efficiency of the robot vacuum cleaner is higher.

[0055] For example, each disc brush 200 is provided with at least two water pipes 300, and the outlets 310 of all the water pipes 300 corresponding to the same disc brush 200 are arranged at intervals along the circumference of the corresponding annular groove 211, which helps to improve the uniformity of the distribution of cleaning liquid in the annular groove 211. In conjunction with the support body 210 having multiple circumferentially spaced drainage holes 212 along the annular groove 211, this helps to improve the uniformity of the cleaning liquid falling onto the ground. The corresponding disc brush 200 and water pipe 300 are configured as a group.

[0056] For example, the robotic vacuum cleaner includes two disc brushes 200, and each disc brush 200 is provided with two water pipes 300. The two disc brushes 200 can rotate in opposite directions relative to the chassis 100. Taking a set of disc brushes 200 and water pipes 300 as an example, the water outlets 310 of the two water pipes 300 are symmetrically distributed on both sides of the center line of the annular groove 211.

[0057] Understandably, taking a set of disc brushes 200 and water pipes 300 as an example, in order to avoid excessive cleaning fluid overflow in the annular groove 211, the sum of the cross-sectional areas of all the drain holes 212 cannot be too small. In some embodiments, the sum of the flow rates of all the drain holes 212 is greater than the sum of the flow rates of all the outlets 310 of the water pipes 300.

[0058] In one feasible implementation, such as Figure 5 As shown, the projection of the water outlet 310 of the water pipe 300 along the center line of the annular groove 211 is located inside the annular groove 211, which helps to reduce the probability of cleaning liquid splashing outside the annular groove 211. For example, when a baffle ring 230 is provided at the top of the annular groove 211, the projection of the water outlet 310 of the water pipe 300 along the center line of the annular groove 211 is located inside the annular inlet 231.

[0059] In one feasible implementation, such as Figure 6 As shown, the centerline of the outlet 310 of the water pipe 300 is set at an acute angle to the bottom surface of the annular groove 211, which helps to reduce the probability of cleaning liquid splashing outside the annular groove 211. Among other things, Figure 6 The O3 in the figure points to the center line of the sprue 310.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A robotic vacuum cleaner, characterized in that, include: Chassis (100); A disc brush (200) is disposed below the chassis (100). The disc brush (200) includes a support body (210) and brush bristles (220) disposed at the bottom of the support body (210). The support body (210) is rotatably connected to the chassis (100). The top of the support body (210) is provided with an annular groove (211), and the bottom of the support body (210) is provided with a drain hole (212) communicating with the annular groove (211). The center line of the annular groove (211) coincides with the rotation axis of the support body (210). A water pipe (300) is provided on the chassis (100), the outlet (310) of the water pipe (300) is arranged facing the annular groove (211), and the water pipe (300) is configured to spray cleaning liquid into the annular groove (211) through the outlet (310).

2. The sweeping robot according to claim 1, characterized in that, The disc brush (200) is provided with at least one, and each disc brush (200) is provided with at least two water pipes (300) respectively, and the outlets (310) of all the water pipes (300) corresponding to the same disc brush (200) are arranged at intervals along the circumference of the corresponding annular groove (211); And / or, the support body (210) is provided with a plurality of drainage holes (212) spaced apart circumferentially along the annular groove (211).

3. The sweeping robot according to claim 1, characterized in that, The top of the drain hole (212) is set through the bottom surface of the annular groove (211).

4. The sweeping robot according to claim 1, characterized in that, The bottom surface of the annular groove (211) is provided with an inclined surface (2111) at the top of the drain hole (212) that slopes inward toward the drain hole (212).

5. The sweeping robot according to claim 1, characterized in that, The drain hole (212) is inclined from the top to the bottom toward the center line away from the annular groove (211).

6. The sweeping robot according to claim 1, characterized in that, The shape of the drain hole (212) is fan-shaped.

7. The sweeping robot according to claim 6, characterized in that, The outer arc edge of the top section of the drain hole (212) coincides with the outer arc edge of the bottom surface of the annular groove (211); And / or, the inner arc edge of the top section of the drain hole (212) is spaced apart from the inner arc edge of the bottom surface of the annular groove (211).

8. The sweeping robot according to claim 1, characterized in that, The projection of the outlet (310) of the water pipe (300) along the center line of the annular groove (211) is located within the annular groove (211); And / or, the centerline of the outlet (310) of the water pipe (300) is set at an acute angle to the bottom surface of the annular groove (211).

9. The sweeping robot according to claim 1, characterized in that, The top of the support body (210) is provided with a first ring portion (213) and a second ring portion (214), the first ring portion (213) is located outside the second ring portion (214), and the annular groove (211) is formed between the first ring portion (213) and the second ring portion (214).

10. The sweeping robot according to any one of claims 1-9, characterized in that, The disc brush (200) also includes a retaining ring (230), which is located at the top of the annular groove (211), and an annular water inlet (231) is formed between the inner ring of the retaining ring (230) and the inner ring of the annular groove (211). The water pipe (300) is configured to spray cleaning liquid into the annular water inlet (231) through the water outlet (310).

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