A dust-proof structure for a robotic vacuum cleaner

Abstract

This utility model relates to a dust-proof structure for a sweeping robot, belonging to the technical field of intelligent cleaning equipment. The sweeping robot is equipped with a protective outer shell. A layered partition is provided in the middle of the protective shell, dividing it into a first chamber and a second chamber. The first chamber houses and protects the sweeping robot, while the second chamber houses multiple sets of retraction and extension drive mechanisms, each set arranged in a circular pattern at equal angles. Each retraction and extension drive mechanism includes a slide rail, which is bolted to the second chamber. A slider is embedded in the slide rail, and a suspended horizontal plate and a retraction and extension drive rod are provided on the top of the slider. This utility model can provide an umbrella-like, unfolding dust shield during the sweeping robot's cleaning process, preventing large-scale dust from flying and causing environmental pollution, thus improving the cleanliness of the cleaning environment.

Description

Technical Field

[0001] This utility model relates to the field of intelligent cleaning equipment technology, and in particular to a dust-proof structure for a sweeping robot. Background Technology

[0002] With the development of smart home technology, robotic vacuum cleaners have become widely used as an efficient and convenient household cleaning tool. Traditional robotic vacuum cleaners mainly combine a roller brush, suction port, and fan system to suck dust and debris into a dustbin for automated floor cleaning. However, during the cleaning process, especially when dealing with large amounts of dust or fine particulate matter, robotic vacuum cleaners are prone to generating dust, which not only affects the cleaning effect but may also adversely affect indoor air quality and even pose a potential threat to users' respiratory health. Although most existing robotic vacuum cleaners are equipped with basic devices such as filters and dustbins, dust still tends to spill out when the brush head rotates at high speed or when the negative pressure at the suction port fluctuates. Current dust-proof designs are mostly based on passive filtration and lack active control measures targeting the dust propagation path, resulting in limited protection capabilities. In addition, some dust-proof structures are complex and bulky, which is not conducive to the overall slim design and modular maintenance, increasing manufacturing and usage costs. Utility Model Content

[0003] This invention overcomes the shortcomings of the prior art and provides a dust-proof structure for a sweeping robot.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a dust-proof structure for a sweeping robot, the dust-proof structure including a sweeping robot device:

[0006] The sweeping robot device is equipped with a protective shell, and the protective shell has a layered partition in the middle, which divides the protective shell into a first chamber and a second chamber. The first chamber is used to house and protect the sweeping robot device, and the second chamber is used to deploy multiple sets of retraction and extension drive mechanisms, and each set of retraction and extension drive mechanisms is arranged in a circular arrangement at equal angles.

[0007] The retraction and extension drive mechanism includes a slide rail, which is fixed to the second chamber by bolts. A slider is embedded and connected on the slide rail. A suspended horizontal plate and a retraction and extension drive rod are provided on the top of the slider. The end of the suspended horizontal plate and the tail end of the retraction and extension drive rod are spliced ​​together.

[0008] The bottom of the suspended horizontal plate is provided with a guide post, which is inserted into the guide groove. The retraction and extension drive rod is limited to pass through the retraction and extension limiting hole, so that the retraction and extension limiting hole can limit the outward retraction and extension movement of the retraction and extension drive rod. The retraction and extension limiting hole is opened on the side wall of the first chamber.

[0009] Furthermore, in a preferred embodiment of the present invention, the guide groove is formed on the drive disk, and the guide groove is a curved arc shape that grows outward in a clockwise direction.

[0010] Furthermore, in a preferred embodiment of the present invention, a ball bearing is mounted at the center of the drive disc.

[0011] Furthermore, in a preferred embodiment of the present invention, the inner ring of the ball bearing is embedded in a fixed post, and the fixed post is disposed at the top of the second chamber.

[0012] Furthermore, in a preferred embodiment of the present invention, the top of the drive disc is provided with driven gear teeth arranged in a ring, the driven gear teeth meshing with the teeth on the drive gear.

[0013] Furthermore, in a preferred embodiment of the present invention, the drive gear is fixed to the drive end of the micro stepper motor, and the micro stepper motor is fixed to the second chamber by a mounting plate.

[0014] Furthermore, in a preferred embodiment of the present invention, the front end of the retraction drive rod is hinged to a first connecting post via a pivot, and the first connecting post is disposed inside the dustproof baffle.

[0015] Furthermore, in a preferred embodiment of the present invention, a second connecting post is provided on the inner side of the dustproof baffle. The second connecting post is hinged to the positioning hinge block through a rotating shaft, and the second connecting post is located directly above the first connecting post.

[0016] Furthermore, in a preferred embodiment of the present invention, the positioning hinge block is welded to the side of the protective outer shell of the fuselage.

[0017] Furthermore, in a preferred embodiment of the present invention, an elastic nylon cloth is provided between the dustproof baffles connected to each set of retraction and extension drive mechanisms.

[0018] The beneficial technical effects of this utility model are as follows:

[0019] This invention controls a micro stepper motor to drive a drive disc to rotate counterclockwise inside the second chamber under the action of an active gear and ball bearings. The drive disc then guides a guide post from the center to the outward-extending end via a guide groove. Simultaneously, the guide posts on each set of retraction / extension drive mechanisms drive the slider to expand outwards on the slide rail, causing the front end of the retraction / extension drive rod to extend laterally towards the outer perimeter of the first chamber. This allows the dust baffle to open and close outwards from the side of the protective shell, with the hinge block as the folding center. The dust baffle then unfolds at a certain angle on the side of the protective shell, forming an umbrella-shaped protective area. This effectively blocks most of the dust generated by the rotating cleaning brush or airflow disturbance directly below during the robot's cleaning process, achieving dust protection, reducing dust diffusion, lowering the amount of micro-dust released, and significantly improving cleaning efficiency and quality. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the first chamber of this utility model;

[0023] Figure 3 This is a schematic diagram of the unfolded structure of the dustproof baffle and elastic nylon cloth during operation of the present invention.

[0024] Figure 4 for Figure 3 Enlarged structural diagram at point AA;

[0025] Figure 5 A cross-sectional structural diagram showing the distribution of the first and second chambers on the fuselage protective shell;

[0026] Figure 6 This is a schematic diagram of the overall structure of the first connecting column and the second connecting column located on the dustproof baffle.

[0027] In the picture:

[0028] 101. Sweeping robot device; 102. Protective shell for the robot body; 103. Layered partition; 104. First chamber; 105. Second chamber; 106. Slide rail; 107. Slider; 108. Suspended horizontal plate; 109. Retraction and extension drive rod; 201. Guide post; 202. Guide groove; 203. Drive disc; 204. Ball bearing; 205. Fixed post; 206. Driven gear tooth; 207. Drive gear; 208. Miniature stepper motor; 209. Mounting plate; 301. First connecting post; 302. Dustproof baffle; 303. Second connecting post; 304. Positioning hinge block; 305. Elastic nylon cloth. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, references to "embodiment," "one embodiment," "some embodiments," or "other embodiments" indicate that a specific feature, structure, or characteristic described in connection with an embodiment is included in at least some embodiments, but not necessarily all embodiments. Multiple appearances of "embodiment," "one embodiment," or "some embodiments" do not necessarily refer to the same embodiment. If the specification describes a component, feature, structure, or characteristic as "may," "may," or "can" be included, then that particular component, feature, structure, or characteristic is not required to be included. If the specification or claims refer to an element "a," it does not mean that there is only one element. If the specification or claims refer to "an additional" element, it does not exclude the existence of more than one additional element. Furthermore, specific features, structures, functions, or characteristics can be combined in one or more embodiments in any suitable manner. For example, a first embodiment can be combined with a second embodiment, provided that the specific features, structures, functions, or characteristics associated with the two embodiments are not mutually exclusive.

[0031] In the description of this utility model, unless otherwise specified, ordinal adjectives such as "first," "second," and "third" are used to describe common objects, indicating only different instances of the same object, and not implying that the objects described must be in a given order, whether temporally, spatially, sequentially, or in any other way. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0033] Example

[0034] like Figure 1-6 As shown, this application provides a dust-proof structure for a sweeping robot, the dust-proof structure including a sweeping robot device 101.

[0035] The robotic vacuum cleaner device 101 is equipped with a protective shell 102. The protective shell 102 has a layered partition 103 in the middle, which divides the protective shell 102 into a first chamber 104 and a second chamber 105. The first chamber 104 is used to house and protect the robotic vacuum cleaner device 101, and the second chamber 105 is used to deploy multiple sets of retraction and extension drive mechanisms, and each set of retraction and extension drive mechanisms is arranged in a circular arrangement at equal angles.

[0036] The retraction and extension drive mechanism includes a slide rail 106, which is fixed to the second chamber 105 by bolts. A slider 107 is embedded and connected on the slide rail 106. A suspended horizontal plate 108 and a retraction and extension drive rod 109 are provided on the top of the slider 107, and the end of the suspended horizontal plate 108 is spliced ​​with the tail end of the retraction and extension drive rod 109.

[0037] The bottom of the suspended horizontal plate 108 is provided with a guide post 201, which is inserted into the guide groove 202. The retraction and extension drive rod 109 is limited to the retraction and extension limiting hole, so that the retraction and extension limiting hole can limit the outward retraction and extension movement of the retraction and extension drive rod 109. The retraction and extension limiting hole is opened on the side wall of the first chamber 104.

[0038] Furthermore, in a preferred embodiment of the present invention, the guide groove 202 is formed on the drive disk 203, and the guide groove 202 is a curved arc shape that grows outward in a clockwise direction.

[0039] Furthermore, in a preferred embodiment of the present invention, a ball bearing 204 is mounted at the center of the drive disc 203.

[0040] Furthermore, in a preferred embodiment of the present invention, the inner ring of the ball bearing 204 is embedded in the fixing post 205, and the fixing post 205 is disposed at the top of the second chamber 105.

[0041] Furthermore, in a preferred embodiment of the present invention, the top of the drive disc 203 is provided with driven gear teeth 206 arranged in a ring, and the driven gear teeth 206 mesh with the teeth on the drive gear 207.

[0042] Furthermore, in a preferred embodiment of the present invention, the drive gear 207 is fixed to the drive end of the micro stepper motor 208, and the micro stepper motor 208 is fixed to the second chamber 105 by the mounting plate 209.

[0043] Furthermore, in a preferred embodiment of the present invention, the front end of the retraction drive rod 109 is hinged to a first connecting post 301 via a pivot, and the first connecting post 301 is disposed inside the dustproof baffle 302.

[0044] Furthermore, in a preferred embodiment of the present invention, a second connecting post 303 is also provided on the inner side of the dustproof baffle 302. The second connecting post 303 is hinged to the positioning hinge block 304 through a rotating shaft, and the second connecting post 303 is located directly above the first connecting post 301.

[0045] Furthermore, in a preferred embodiment of the present invention, the positioning hinge block 304 is welded to the side of the fuselage protective shell 102.

[0046] Furthermore, in a preferred embodiment of the present invention, an elastic nylon cloth 305 is provided between the dustproof baffles 302 connected to each set of retraction and extension drive mechanisms.

[0047] It should be noted that the robotic vacuum cleaner device 101 is a commercially available general-purpose robotic vacuum cleaner product, capable of automatically cleaning designated areas. When the robotic vacuum cleaner device 101 is placed in the target area to perform the cleaning task, during the self-cleaning process, the micro stepper motor 208 is activated. The drive end of the micro stepper motor 208 drives the drive gear 207 to rotate counterclockwise. The teeth of the drive gear 207 then transmit motion through meshing with the driven gear teeth 206, causing the drive disc 203 to rotate counterclockwise inside the second chamber 105 under the action of the ball bearing 204. Furthermore, due to... Each guide groove 202 on the drive disc 203 is distributed in a clockwise outward-growing curved arc shape. Therefore, when the drive disc 203 rotates counterclockwise, it will drive the guide post 201 to slide through the guide groove 202, and guide the guide post 201 from the end of the guide groove 202 near the center to the end that extends outward. At this time, the guide posts on each set of retraction and extension drive mechanisms will synchronously perform an outward expansion stroke, pushing the slider 107 to slide outward on the slide rail 106 through the suspended horizontal plate 108, thereby causing the front end of the retraction and extension drive rod 109 to extend laterally towards the outer periphery of the first chamber 104. The dust baffle 302 is pushed forward under the hinge constraint of its front end and the first connecting post 301, causing the dust baffle 302 to tend to extend outward. Due to the constraint of the hinge between the second connecting post 303 on the inner side of the dust baffle 302 and the positioning hinge block 304, the dust baffle 302 can open and close outward on the side of the fuselage protective shell 102 with the positioning hinge block 304 as the folding center. Therefore, the outward extension tendency applied to the dust baffle 302 at this time can only push it to fold upward, so that the dust baffle 302 forms a folding force on the side of the fuselage protective shell 102. When multiple sets of extension and retraction drive mechanisms unfold at the same angle, they form an umbrella-shaped protective area. This area can comprehensively block most of the dust generated by the rotation of the cleaning brush or the disturbance of airflow directly below during the cleaning of the target area by the sweeping robot device 101. The unfolded umbrella-shaped protective area does not touch the ground, so it will not interfere with the operation of the sweeping robot device 101 or have abnormal contact. This effectively reduces the large-scale spread of cleaning dust, reduces the release of micro-dust, protects the health index of the living environment, achieves the dust protection effect of the sweeping robot, and significantly improves cleaning efficiency and quality.

[0048] Since the upward folding of each dustproof baffle 302 creates a certain angle of opening, the elastic nylon cloth 305 can eliminate and maximize the coverage of this opening, thereby preventing dust from flying out through the gaps between the dustproof baffles 302. This improves the phenomenon of dust blocking, leakage, and omission. Furthermore, the elastic nylon cloth 305 has high elasticity, and when two dustproof baffles 302 are folded simultaneously, the elastic nylon cloth 305 can adaptively unfold to match their angle, making the overall dustproof structure more closed and reasonable.

[0049] It should be noted that by controlling the rotation amplitude of the drive disc 203, the outward expansion stroke of the guide column 201 can be adjusted, thereby increasing or decreasing the advancing distance of the retractable drive rod 109. As the advancing distance of the retractable drive rod 109 changes, the folding angle of the dustproof baffle 302 gradually increases or decreases, thereby changing the coverage area of ​​the dustproof baffle 302 directly below the target area cleaned by the sweeping robot device 101, achieving the function of adjusting the dustproof range. This function allows for targeted adjustment of the coverage area according to the dust level of different floor materials (such as tiles, wood flooring, and carpets), precisely controlling the dust suppression area and improving dustproof performance. Furthermore, the dustproof structure of this invention can expand the dustproof range and enhance dust control in cleaning scenarios with a lot of dust or vigorous operation (such as powerful brushing mode); when there is less dust or when speed is required, the dustproof range can be reduced to decrease resistance, improve dustproof flexibility, and ensure cleaning coverage and stability.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dust-prevention structure for a sweeping robot, the dust-prevention structure comprising a sweeping robot device, characterized in that: The sweeping robot device is equipped with a protective shell, and the protective shell has a layered partition in the middle, which divides the protective shell into a first chamber and a second chamber. The first chamber is used to house and protect the sweeping robot device, and the second chamber is used to deploy multiple sets of retraction and extension drive mechanisms, and each set of retraction and extension drive mechanisms is arranged in a circular arrangement at equal angles. The retraction and extension drive mechanism includes a slide rail, which is fixed to the second chamber by bolts. A slider is embedded and connected on the slide rail. A suspended horizontal plate and a retraction and extension drive rod are provided on the top of the slider. The end of the suspended horizontal plate and the tail end of the retraction and extension drive rod are spliced ​​together. The bottom of the suspended horizontal plate is provided with a guide post, which is inserted into the guide groove. The retraction and extension drive rod is limited to pass through the retraction and extension limiting hole, so that the retraction and extension limiting hole can limit the outward retraction and extension movement of the retraction and extension drive rod. The retraction and extension limiting hole is opened on the side wall of the first chamber. 2.The dust raising prevention structure of a sweeping robot according to claim 1, characterized in that: The guide groove is formed on the drive disk, and the guide groove is a curved arc shape that grows outward in a clockwise direction. 3.The dust raising prevention structure of a sweeping robot according to claim 2, characterized in that: A ball bearing is installed at the center of the drive disc.

4. The dust-raising prevention structure of a sweeping robot according to claim 3, characterized in that: The inner ring of the ball bearing is embedded in a fixed post, which is located at the top of the second chamber. 5.The dust raising prevention structure of a sweeping robot according to claim 3, characterized in that: The top of the drive disk is provided with driven gear teeth arranged in a ring, which mesh with the teeth on the drive gear. 6.The dust raising prevention structure of a sweeping robot according to claim 5, characterized in that: The drive gear is fixed to the drive end of the micro stepper motor, and the micro stepper motor is fixed to the second chamber by a mounting plate.

7. The dust-proof structure of a sweeping robot according to claim 1, characterized in that: The front end of the retraction drive rod is hinged to a first connecting post via a pivot, and the first connecting post is located inside the dustproof baffle. 8.The dust raising prevention structure of a sweeping robot according to claim 7, characterized in that: The dustproof baffle is also provided with a second connecting column on its inner side. The second connecting column is hinged to the positioning hinge block through a rotating shaft, and the second connecting column is located directly above the first connecting column. 9.The dust raising prevention structure of a sweeping robot according to claim 8, characterized in that: The positioning hinge block is welded to the side of the fuselage protective shell. 10.The dust raising prevention structure of a sweeping robot according to claim 1, wherein: Elastic nylon cloth is installed between the dustproof baffles connected to each set of retraction and extension drive mechanisms.

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