Self-walking cleaning machine

Abstract

The invention relates to a self-walking cleaning machine, which comprises a main body and a collision plate, the striking plate is movably connected to the main body. The collision plate comprises a first side plate, a second side plate and a third side plate, and the first side plate and the second side plate are located on the two opposite sides of the third side plate and protrude out of the first surface of the third side plate respectively. The first side plate, the second side plate and the third side plate of the striking plate are integrally formed. And two opposite end parts of the striking plate are elastic. The first side plate is provided with at least one collision plate positioning structure extending from the first side plate to the second side plate, and the second side plate is provided with at least one clamping piece extending from the second side plate to the first side plate. The self-walking cleaning machine is provided with the integrally-formed collision plate, so that the assembly working hours and the manufacturing cost can be saved.

Description

TECHNICAL FIELD

[0001] The present application relates to a self-walking cleaning machine, in particular to a self-walking cleaning machine with a bumper plate. BACKGROUND

[0002] Self-walking cleaning machines are widely used in homes because they can automatically sweep and clean. In order to prevent the self-walking cleaning machine from being damaged by colliding with obstacles during movement, a bumper plate is provided on such self-moving sweeping robot to absorb the impact energy, and the bumper plate is also used to detect obstacles around.

[0003] Figure 1 The exploded perspective view of the existing self-walking cleaning machine is shown. As shown in Figure 1 For example, a Chinese invention patent with publication number CN115122348A discloses a self-moving robot 100 including a main body 101 and a bumper plate 103, the bumper plate 103 is movably connected to the main body 101. The bumper plate 103 is usually used for obstacle avoidance and collision avoidance, and can produce slight displacement relative to the main body 101 as a buffer for impact. The bumper plate 103 is connected to the main body 101 through a track groove 111 to realize the functions of obstacle avoidance and collision avoidance, and the structure is simple.

[0004] The bumper plate 103 can be provided with a clamping piece 132 connected with the track groove 111. When the clamping piece 132 cooperates with the track groove 111, the bumper plate 103 and the main body 101 can be connected. The length of the clamping piece 132 is slightly smaller than the length of the track groove 111, and when impacted, it can move relative to the track groove 111, improving the reliability of the connection. Optionally, a spring is connected between the bumper plate 103 and the main body 101, and the spring is used to reset the movement of the bumper plate 103 along the track groove 111. When the bumper plate 103 collides with an obstacle, the reaction force of the obstacle on the bumper plate 103 may cause damage to the components of the self-moving robot 100. At this time, the spring can bear part of the impact force, reducing the damage to the self-moving robot 100.

[0005] In order to meet the assembly requirements, according to the prior art, the bumper plate 103 includes a bumper main piece 113 located on the front side of the main body 101 and a bumper auxiliary piece 123 located on the bottom side of the main body 101. During assembly, the self-moving robot 100 is arranged in reverse, with the bottom side facing up. After aligning the bumper main piece 113 with the front side of the main body 101 of the robot, the bumper auxiliary piece 123 is placed on the bottom side of the main body 101. After positioning the bumper auxiliary piece 123 and the bumper main piece 113, the bumper auxiliary piece 123 is fixed to the bumper main piece 113 using screws.

[0006] Examples of existing technologies that disassemble the bumper into two parts include Chinese invention patents with publication numbers CN115122348A and CN113647863A. Based on the drawings of these patent applications, it can be clearly seen from the bottom of the self-propelled cleaning machine that the self-propelled cleaning machine uses screws to fix the bumper sub-part to the bumper main part. Summary of the Invention

[0007] The purpose of one embodiment of the present invention is to provide a self-propelled cleaning machine with an integrally molded impact plate, thereby saving assembly time and manufacturing costs.

[0008] According to an embodiment of the present invention, a self-propelled cleaning machine is provided, comprising a main body and a bumper plate. The bumper plate is movably connected to the main body. The bumper plate includes a first side plate, a second side plate, and a third side plate, the first side plate and the second side plate being located on opposite sides of the third side plate and protruding from a first surface (inner surface) of the third side plate respectively. The first side plate, the second side plate, and the third side plate of the bumper plate are integrally formed. The two opposite ends of the bumper plate are elastic. The first side plate has at least one bumper plate positioning structure extending from the first side plate to the second side plate, and the second side plate has at least one engaging member extending from the second side plate to the first side plate.

[0009] In one embodiment, the body has a first surface and a second surface opposite to the first surface. At least one impact plate positioning structure is formed on the first surface, and the at least one impact plate positioning structure cooperates with each other to position the impact plate. Moreover, at least one engaging member is formed on the second surface for receiving the at least one engaging member.

[0010] In one embodiment, at least one impact plate positioning structure is elongated. The at least one impact plate positioning structure has a guide section and a positioning section. The positioning section is elongated. The guide section includes two opposing free ends and a connecting end. The positioning section connects to the connecting end of the guide section, and the guide section extends obliquely relative to the positioning section, such that the extension lines of the positioning section and the guide section are not on the same extension line. Furthermore, the free end of the guide section is closer to the outer edge of the self-propelled cleaning machine than the connecting end of the guide section.

[0011] In one embodiment, the length of at least one of the latching members is slightly less than the length of the at least one latching member, so that when the at least one latching member is housed in the at least one latching member and the self-propelled cleaning machine is impacted, the at least one latching member can move relative to the at least one latching member in the length direction of the at least one latching member.

[0012] In one embodiment, the impact plate is arc-shaped. At least one engaging member includes a first engaging member and a second engaging member respectively located on two opposite sides of the impact plate. At least one impact plate positioning structure includes a first impact plate positioning structure and a second impact plate positioning structure respectively located on two opposite sides of the impact plate. At least one engaging member includes a first engaging member and a second engaging member respectively located on two opposite sides of the impact plate. Furthermore, at least one impact plate positioning structure includes a first impact plate positioning structure and a second impact plate positioning structure respectively located on two opposite sides of the impact plate.

[0013] In one embodiment, the upper side plate, the lower side plate, and the front side plate of the impact plate are formed by injection molding, and the upper side plate, the lower side plate, and the front side plate are formed in one step in a mold.

[0014] In summary, according to one embodiment of the present invention, since the first side plate, second side plate, and third side plate of the impact plate are integrally formed, the assembly time and cost of the self-propelled cleaning machine can be reduced. In one embodiment, the impact plate is connected to the main body by an impact plate positioning structure and a locking component. Attached Figure Description

[0015] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0016] in:

[0017] Figure 1 This shows an exploded perspective view of an existing self-propelled cleaning machine.

[0018] Figure 2 An exploded perspective view of the main body and impact plate of a self-propelled cleaning machine according to an embodiment of the present invention, viewed from a top-down perspective.

[0019] Figure 3 An exploded perspective view of the main body and impact plate of a self-propelled cleaning machine according to another embodiment of the present invention, viewed from an upward angle.

[0020] Figure 4 A perspective view of a self-propelled cleaning machine according to another embodiment of the present invention is shown.

[0021] Figure 5 show Figure 3 A magnified view of area Sb of the self-propelled cleaning machine.

[0022] Figure 6 show Figure 4 A magnified view of area Sa of the self-propelled cleaning machine.

[0023] Figure 7 Showing a bottom view of a self-propelled cleaning machine according to another embodiment of the present invention.

[0024] Figure 8 showFigure 7 A cross-sectional view of the self-propelled cleaning machine, section AA; and a partially enlarged cross-sectional view.

[0025] Figure 9 show Figure 7 A magnified cross-sectional view of another state of the section of the self-propelled cleaning machine, shown in section AA.

[0026] Explanation of icon numbers:

[0027] 100: Self-moving robot

[0028] 101: Main Body

[0029] 103: Crashing into the board

[0030] 111: Track groove

[0031] 113: Main components of the bumper

[0032] 123: Bumper Sub-components

[0033] 132: Card assembly

[0034] 200: Self-propelled cleaning machine

[0035] 210: Crashing into the board

[0036] 211: Upper side panel

[0037] 211a: Impact plate positioning structure

[0038] 212: Lower side panel

[0039] 213: Front side panel

[0040] 220: Main Body

[0041] 221: Upper surface

[0042] 221a: Main positioning structure

[0043] 221b: Guiding Segment

[0044] 221c: Positioning segment

[0045] 222: Lower surface

[0046] 223: Engagement slot

[0047] 233: Card assembly

[0048] 321: Planar part

[0049] 322: Inclined surface Detailed Implementation

[0050] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0051] Figure 2 An exploded perspective view of the main body and impact plate of a self-propelled cleaning machine according to an embodiment of the present invention, viewed from a top-down perspective. Figure 3 An exploded perspective view of the main body and impact plate of a self-propelled cleaning machine according to another embodiment of the present invention, viewed from an upward angle. Figure 4 A perspective view of another embodiment of the self-propelled cleaning machine of the present invention is shown. Figure 4 In the image, the surface of the self-propelled cleaning machine 200 is cut open to reveal portions of the impact plate positioning structure 211a and the main body positioning structure 221a. For example... Figures 2 to 4 As shown, according to an embodiment of the present invention, a self-propelled cleaning machine 200 is provided, including a main body 220 and a collision plate 210. The collision plate 210 is movably connected to the main body 220. The collision plate 210 includes an upper side plate 211, a lower side plate 212, and a front side plate 213. The upper side plate 211 and the lower side plate 212 are located on opposite sides of the front side plate 213 and protrude from the inner surface (first surface) of the front side plate 213, respectively. The upper side plate 211, the lower side plate 212, and the front side plate 213 of the collision plate 210 are integrally formed. In one embodiment, the two opposite ends of the collision plate 210 are elastic. In another embodiment, the elasticity of the collision plate 210 allows the two opposite ends of the collision plate 210 to move relative to each other to a certain extent. In one embodiment, the collision plate 210 is formed by injection molding. The working principle of injection molding is to heat and melt plastic granules, then inject them into a mold, and cool and solidify them to form the desired collision plate 210. The upper side plate 211, lower side plate 212, and front side plate 213 of the impact plate 210 are integrally formed, meaning that the three plates are formed in one piece in the mold without the need for splicing. This improves the production efficiency and assembly accuracy of the product.

[0052] Figure 5 show Figure 3 A magnified view of area Sb of the self-propelled cleaning machine. (See attached image.) Figure 5 As shown, the lower side plate 212 has at least one engaging member 233 extending from the lower side plate 212 to the upper side plate 211. Figure 6 show Figure 4 A magnified view of area Sa of the self-propelled cleaning machine. (See image below.) Figure 6 As shown, the upper side plate 211 has at least one impact plate positioning structure 211a extending from the upper side plate 211 to the lower side plate 212.

[0053] like Figure 6As shown, in one embodiment, the main body 220 has an upper surface 221 (first surface) and a lower surface 222 (second surface) opposite to the upper surface 221. At least one main body positioning structure 221a is formed on the upper surface 221, and the at least one main body positioning structure 221a cooperates with at least one impact plate positioning structure 211a to position the impact plate 210. Moreover, at least one engaging groove 223 is formed on the lower surface 222 for accommodating at least one engaging member 233.

[0054] like Figure 6 As shown, in one embodiment, at least one impact plate positioning structure 211a is elongated. At least one main positioning structure 221a has a guide section 221b and a positioning section 221c. Both the guide section 221b and the positioning section 221c are elongated. The guide section 221b includes two opposing free ends and a connecting end. The positioning section 221c connects to the connecting end of the guide section 221b. The guide section 221b extends obliquely relative to the positioning section 221c, such that the extension lines of the positioning section 221c and the guide section 221b are not on the same extension line. Furthermore, the free end of the guide section 221b is closer to the outer edge of the self-propelled cleaning machine 200 relative to the connecting end of the guide section 221b.

[0055] like Figure 3 and Figure 4 As shown, in one embodiment, the impact plate 210 is arc-shaped. At least one engaging member 233 includes a left engaging member 233 and a right engaging member 233 (a first engaging member and a second engaging member) located on opposite sides of the impact plate. At least one impact plate positioning structure 211a includes a left impact plate positioning structure 211a and a right impact plate positioning structure 211a (a first impact plate positioning structure and a second impact plate positioning structure) located on opposite sides of the impact plate. At least one engaging groove includes a left engaging groove 223 and a right engaging groove 223 (a first engaging groove and a second engaging groove) located on opposite sides of the main body 220, and at least one main body positioning structure 221a includes a left main body positioning structure 221a and a right main body positioning structure 221a (a first main body positioning structure and a second main body positioning structure) located on opposite sides of the main body 220.

[0056] The left impact plate positioning structure 211a and the left main body positioning structure 221a cooperate with each other, as do the right impact plate positioning structure 211a and the right main body positioning structure 221a, to prevent the impact plate 210 from falling off to the side. More specifically, when the right side of the self-propelled cleaning machine 200 hits an obstacle, the cooperation between the impact plate positioning structure 211a and the main body positioning structure 221a located on the left side can prevent the impact plate 210 from falling off to the side.

[0057] like Figure 6 and Figure 9As shown, during the process of installing the impact plate 210 onto the main body 220, the impact plate 210 is moved closer to the front of the main body 220, and the two ends of the impact plate 210 are squeezed inward, allowing the impact plate positioning structure 211a to reach the inner side of the guide section 221b. At this time, the position of the engaging member 233 is outside the engaging groove 223, that is, the position of the guide section 221b is in front of the engaging member 233. Subsequently, the impact plate positioning structure 211a continues to advance through the inner side of the guide section 221b and guided by the guide section 221b until it can no longer advance, at which point the impact plate 210 is released, and the two ends of the impact plate 210 expand outward and abut against the positioning section 221c. At this time, the position of the engaging member 233 is within the engaging groove 223. In this way, the impact plate positioning structure 211a and the main body positioning structure 221a cooperate with each other to install the positioning impact plate 210.

[0058] Figure 9 show Figure 7 This is an enlarged cross-sectional view of another state of the self-propelled cleaning machine, shown by the cross-sectional line AA, where the impact plate 210 is not fully installed. On the lower surface 222 of the self-propelled cleaning machine 200, a flat portion 321 and an inclined surface 322 are formed to guide the movement of the engaging member 233. Furthermore, as the impact plate 210 moves towards the front of the main body 220, the engaging member 233 first moves to the flat portion 321. Subsequently, the engaging member 233 moves to the inclined surface 322, climbs upwards, and finally reaches the engaging groove 223, where it enters and is accommodated. In one embodiment, the impact plate 210 near the engaging member 233 is elastic; when the engaging member 233 moves to the inclined surface 322 and climbs upwards, it undergoes slight deformation to accumulate elastic force, which is released upon reaching the engaging groove 223, allowing it to enter the engaging groove 223.

[0059] Figure 7 Showing a bottom view of a self-propelled cleaning machine according to another embodiment of the present invention. Figure 8 show Figure 7 A cross-sectional view of the self-propelled cleaning machine, shown by line AA. Figure 7 and Figure 8 As shown, in one embodiment, the length h of at least one engaging member 233 is slightly less than the length H of at least one engaging slot 223, so that when at least one engaging member 233 is housed in at least one engaging slot 223 and the self-propelled cleaning machine 200 is impacted, at least one engaging member 233 can move relative to at least one engaging slot 223 in the length direction of at least one engaging slot 223.

[0060] The left engaging member 233 is housed in the left engaging slot 223, while the right engaging member 233 is housed in the right engaging slot 223. When the front side of the self-propelled cleaning machine 200 impacts an obstacle, the left engaging member 233 moves relative to the obstacle within the left engaging slot 223, and the right engaging member 233 moves relative to the obstacle within the right engaging slot 223. A spring (not shown) connects the impact plate 210 and the main body 220, and the spring is used to reset the impact plate 210. When the impact plate 210 impacts an obstacle, the reaction force generated by the obstacle on the impact plate 210 may damage the components of the self-propelled cleaning machine 200. In this case, the spring can withstand part of the impact force, reducing the damage to the self-propelled cleaning machine 200.

[0061] In one embodiment, the vertical or horizontal positions can be interchanged. For example, the upper side plate 211 can have at least one engaging member 233, while the lower side plate 212 can have at least one impact plate positioning structure 211a. At least one main positioning structure 221a is formed on the lower surface 222, and the at least one main positioning structure 221a cooperates with the at least one impact plate positioning structure 211a to position the impact plate 210. Moreover, at least one engaging groove 223 is formed on the upper surface 221 to accommodate the at least one engaging member 233.

[0062] As described above, according to the existing technology, the bumper plate is disassembled into two parts, and then the bumper sub-part and the bumper main part are assembled with screws. Therefore, there are many parts and the assembly is time-consuming. In contrast, according to an embodiment of the present invention, the bumper plate 210 is integrally formed, and corresponding features are provided on the housing and the base to simplify the assembly steps of the bumper plate 210.

[0063] The above are merely illustrative embodiments of the present invention and are not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A self-propelled cleaning machine, comprising: A main body and a collision plate, the collision plate being movably connected to the main body. in, The impact plate includes a first side plate, a second side plate, and a third side plate. The first side plate and the second side plate are located on opposite sides of the third side plate and protrude from the first surface of the third side plate, respectively. The first side plate, the second side plate, and the third side plate of the impact plate are integrally formed. The two opposite ends of the impact plate are elastic. The first side plate has at least one impact plate positioning structure extending from the first side plate to the second side plate, and The second side panel has at least one engaging member extending from the second side panel toward the first side panel.

2. The self-propelled cleaning machine as described in claim 1, wherein, The body has a first surface and a second surface opposite to the first surface. At least one main positioning structure is formed on the first surface, and the at least one main positioning structure cooperates with the at least one impact plate positioning structure to position the impact plate. At least one engaging groove is formed on the second surface for accommodating at least one engaging member.

3. The self-propelled cleaning machine as described in claim 2, wherein, At least one of the impact plate positioning structures is elongated. At least one of the main positioning structures has a guide section and a positioning section. The positioning segment is long and narrow. The guide section comprises two opposite free ends and a connecting end. The positioning segment connects to the connecting end of the guiding segment, and the guiding segment extends at an angle relative to the positioning segment, such that the extension lines of the positioning segment and the guiding segment are not on the same extension line, and The free end of the guide section is closer to the outer edge of the self-propelled cleaning machine than the connecting end of the guide section.

4. The self-propelled cleaning machine as described in claim 3, wherein, The length of at least one of the engaging members is less than the length of at least one engaging slot, so that when at least one of the engaging members is housed in at least one engaging slot and the self-propelled cleaning machine is impacted, at least one of the engaging members can move relative to at least one engaging slot in the length direction of at least one engaging slot.

5. The self-propelled cleaning machine as described in claim 4, wherein, The impact plate is arc-shaped. At least one of the locking components includes a first locking component and a second locking component located on two opposite sides of the impact plate. At least one of the impact plate positioning structures includes a first impact plate positioning structure and a second impact plate positioning structure located on two opposite sides of the impact plate. At least one engaging slot includes a first engaging slot and a second engaging slot located on two opposite sides of the main body, and At least one main positioning structure, comprising a first main positioning structure and a second main positioning structure located on two opposite sides of the main body.

6. The self-propelled cleaning machine as described in claim 1, wherein, The upper side plate, the lower side plate, and the front side plate of the impact plate are formed by injection molding, and the upper side plate, the lower side plate, and the front side plate are formed in one piece in the mold.

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