Sweeping Robot

Abstract

The present application relates to an anti-collision plate and a sweeping robot, wherein the anti-collision plate includes a main body portion; a side body portion, located on both sides of the main body portion; and a flexible connection portion, wherein the flexible connection portion is located between the main body portion and the side body portion, and the side body portion and the main body portion are connected as a whole by means of the corresponding flexible connection portion. The anti-collision plate and the sweeping robot provided by the present application, when one side body portion of the anti-collision plate collides with surrounding obstacles and moves backward, since the side body portion and the main body portion are flexibly connected by the flexible connection portion, the resistance to the backward movement of the impacted side can be weakened by the flexible connection, thereby reducing the backward movement resistance of the side body portion and increasing the backward movement amount. Therefore, the pressure exerted by the side body portion on the corresponding collision switch is sufficient, and the collision switch can be triggered in time, thereby improving the triggering sensitivity of the collision switch and not affecting the sensing of obstacles on both sides of the whole machine.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a sweeping robot. Background Art

[0002] When an existing sweeping robot cleans the floor, due to the complex surrounding environment, it often collides with surrounding obstacles when moving around, thereby causing damage to the sweeping robot.

[0003] In order to avoid the collision between the sweeping robot and the surrounding obstacles, an anti-collision plate and a collision switch connected to the anti-collision plate are usually installed around the sweeping robot body. When the sweeping robot collides with the surrounding obstacles, the anti-collision plate can play a good buffering role and transmit information to the main controller through the collision switch to control the rotation direction of the sweeping robot.

[0004] The anti-collision plate of the existing sweeping robot cannot sensitively trigger the collision switch after being hit. Summary of the invention

[0005] Based on this, it is necessary to provide a sweeping robot with a collision switch that can be sensitively triggered in order to solve the problem that the anti-collision plate of the existing sweeping robot cannot sensitively trigger the collision switch after being hit.

[0006] In one aspect of the present application, there is provided an anti-collision plate, comprising:

[0007] A main body portion extending along a first direction;

[0008] side body parts, located at both sides of the main body part along the first direction, the side body parts extending along a second direction intersecting with the first direction; and

[0009] A flexible connection part is located between the main body part and the side body part, and the side body part and the main body part are connected as a whole by means of the corresponding flexible connection part.

[0010] When one side body portion of the above-mentioned anti-collision plate collides with the surrounding obstacles and moves backward, since the side body portion and the main body portion are flexibly connected via the flexible connection portion, the resistance against the backward movement of the impacted side can be weakened via the flexible connection, thereby reducing the backward movement resistance of the side body portion and increasing the backward movement amount. Therefore, the pressure exerted by the side body portion on the corresponding collision switch is sufficient, and the collision switch can be triggered in time, thereby improving the triggering sensitivity of the collision switch and not affecting the sensing of obstacles on both sides of the entire machine.

[0011] In one embodiment, the flexible connection part has elastic deformation capability. The elastic deformation of the flexible connection part can reduce the resistance to the rearward movement of the impacted side, thereby reducing the rearward movement resistance of the side body part and increasing the rearward movement amount.

[0012] In one embodiment, the elastic modulus of the flexible connection portion is smaller than that of the main body portion and the side body portion. The elastic deformation of the flexible connection portion is easier than that of the main body portion and the side body portion, so the resistance to the rearward movement of the impacted side can be weakened by the larger elastic deformation of the flexible connection portion, thereby reducing the rearward movement resistance of the side body portion and increasing the rearward movement amount.

[0013] In one embodiment, the flexible connection portion includes a rubber connection portion or a silicone connection portion.

[0014] In one embodiment, the main body portion comprises an ABS plastic main body portion; and / or

[0015] The side body portion comprises an ABS plastic side body portion.

[0016] In one embodiment, the flexible connection part is connected to the main body part and the side body part by injection molding. The injection molding process is simple and the molding is stable, so that the overall structure of the anti-collision plate is stable.

[0017] In one embodiment, the flexible connection portion includes a flexible corner portion, and the two sides of the flexible corner portion are respectively connected to one side of the main body portion and one side of the corresponding side body portion. On the one hand, the overall structural stability of the anti-collision plate can be improved, and on the other hand, the flexible connection portion can also collide with surrounding obstacles to trigger the corresponding collision switch, thereby increasing the collision range of the anti-collision plate and improving the anti-collision performance of the entire device.

[0018] In one embodiment, the cross-section of the flexible corner portion is fan-shaped. The stress distribution of the outer curved surface and the inner curved surface of the flexible connection portion is uniform, so as to avoid damage to a certain part due to stress concentration when deformed by force.

[0019] In one embodiment, the angle between the first direction and the second direction is greater than 90 degrees.

[0020] In another aspect of the present application, a sweeping robot is provided, comprising a sweeping robot body and the above-mentioned anti-collision plate;

[0021] The anti-collision plate is installed in front of the main body of the cleaning robot along the moving direction of the cleaning robot, and the anti-collision plate can move in a direction close to or away from the main body of the cleaning robot.

[0022] For the above-mentioned sweeping robot, when one side body portion of the anti-collision plate collides with surrounding obstacles and moves backward, since the side body portion is flexibly connected to the main body portion through the flexible connection portion, the resistance against the backward movement of the collided side can be weakened through the flexible connection, so that the backward movement resistance of the side body portion is reduced and the backward movement amount becomes larger. Therefore, the pressure of the side body portion on the corresponding collision switch is sufficient, and the collision switch can be triggered in time, thereby improving the triggering sensitivity of the collision switch and not affecting the sensing of obstacles on both sides of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a sweeping robot with an anti-collision plate in one embodiment of the present application;

[0024] Figure 2 for Figure 1 The schematic diagram of the structure of the anti-collision plate in the sweeping robot shown;

[0025] Figure 3 for Figure 2 A schematic structural diagram of the anti-collision plate from another perspective is shown. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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 this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0034] In order to facilitate understanding of the technical solution of the present application, the anti-collision plate of the prior art is first described before detailed description.

[0035] Among the existing sweeping robots, there are sweeping robots with an overall D-shaped shape, referred to as D-type sweeping robots, and the anti-collision plate of the D-type sweeping robot includes a main body and side body parts arranged on both sides of the main body. The inventor of the present application has found that when the D-type sweeping robot is working, if one side body part of the anti-collision plate collides with surrounding obstacles and moves backward under the action of the collision force, the other side body part opposite to the D-type sweeping robot body has a limiting structure, so that the anti-collision plate cannot be translated as a whole, and the main body part of the anti-collision plate has almost no deformation in the collision direction, so when the collision force on the impacted side of the anti-collision plate is transferred to the other side, the main deformation area is concentrated at the corner between the main body part and the side body part.

[0036] However, the existing anti-collision plate is usually one-piece injection-molded, and the deformation at the corner is limited but has a certain resistance, which makes the backward movement resistance of the impacted side large, resulting in insufficient backward movement of the impacted side of the anti-collision plate, and then insufficient pressure on the collision switch, resulting in the collision switch unable to be triggered sensitively, affecting the sensing of obstacles on both sides of the whole machine.

[0037] Therefore, it is necessary to provide an anti-collision plate and a sweeping robot that reduce the resistance so that the resistance to the backward movement of the impacted side is small, ensure that the backward movement of the impacted side is sufficient, and thus improve the triggering sensitivity of the collision switch.

[0038] Figure 1 The schematic diagram of the structure of a sweeping robot with an anti-collision plate in an embodiment of the present application is shown. Figure 2 Shows Figure 1 For ease of description, the accompanying drawings only show structures related to the embodiments of the present application.

[0039] Referring to the accompanying drawings, an anti-collision plate 100 provided in one embodiment of the present application includes a main body portion 10, a side portion 20 and a flexible connection portion 30. Specifically, the anti-collision plate 100 in the present application can be used in a sweeping robot 200, and can also be used in other devices that can be applied to the anti-collision plate 100, which is not limited here.

[0040] The main body 10 extends along a first direction, the side body 20 is located on both sides of the main body 10 along the first direction, the side body 20 extends along a second direction intersecting the first direction, the flexible connection part 30 is located between the main body 10 and the side body 20, and the side body 20 and the main body are connected as a whole by means of the corresponding flexible connection part 30. Specifically, the angle between the first direction and the second direction is not less than 90 degrees. Preferably, the angle between the first direction and the second direction is greater than 90 degrees.

[0041] It should be pointed out that the flexibility of the flexible connection part 30 means that the flexible connection part 30 is easily deformed and bent when subjected to force.

[0042] In this way, when one side body portion 20 of the anti-collision plate 100 collides with the surrounding obstacles and moves backward, since the side body portion 20 and the main body portion 10 are flexibly connected through the flexible connection portion 30, the resistance against the backward movement of the impacted side can be weakened through the flexible connection, so that the backward movement resistance of the side body portion 20 is reduced and the backward movement amount becomes larger. Therefore, the pressure of the side body portion 20 on the corresponding collision switch is sufficient, and the collision switch can be triggered in time, thereby improving the triggering sensitivity of the collision switch and not affecting the sensing of obstacles on both sides of the whole machine.

[0043] Specifically, in one embodiment, the flexible connection part 30 includes a flexible corner part, and the two sides of the flexible connection part 30 are respectively connected to one side of the main part 10 and one side of the side body part 20. The flexible connection part 30 can improve the overall structural stability of the anti-collision plate 100 on the one hand, and on the other hand, the flexible connection part 30 can also collide with surrounding obstacles to trigger the corresponding collision switch, thereby increasing the collision range of the anti-collision plate 100 and improving the anti-collision performance of the whole machine.

[0044] Furthermore, the cross-sectional shape of the flexible corner portion is fan-shaped. Compared with the right-angled flexible connection portion 30, the outer curved surface of the fan-shaped flexible corner portion can reduce damage to the flexible connection portion 30 when the flexible connection portion 30 collides with surrounding obstacles. In addition, the stress distribution of the outer curved surface and the inner curved surface of the flexible connection portion 30 is uniform, so as to avoid a certain point being easily damaged due to stress concentration when deformed by force.

[0045] In some embodiments, the flexible connection part 30 has elastic deformation capability. The flexible connection part 30 with elastic deformation capability can be elastically deformed and bent when subjected to force, and can restore its shape when not subjected to force, so that it is beneficial to effectively move the side body part 20 of the impacted side backward, and can also drive the side body part 20 back to its original position in time. When a side body part 20 of the anti-collision plate 100 collides with the surrounding obstacles and moves backward, since the flexible connection part 30 has elastic deformation capability, the elastic deformation of the flexible connection part 30 can weaken the resistance to the backward movement of the impacted side, thereby reducing the backward movement resistance of the side body part 20 and increasing the backward movement amount.

[0046] Furthermore, the elastic modulus of the flexible connection part 30 is smaller than that of the main body part 10 and the side body part 20. Thus, when one side body part 20 of the anti-collision plate 100 collides with the surrounding obstacles and moves backward, since the elastic modulus of the flexible connection part 30 is smaller than that of the main body part 10 and the side body part 20, that is, the degree of difficulty of the flexible connection part 30 to produce elastic deformation is smaller than that of the main body part 10 and the side body part 20, the resistance to the backward movement of the impacted side can be weakened by the larger elastic deformation of the flexible connection part 30, so that the backward movement resistance of the side body part 20 is reduced and the backward movement amount is increased.

[0047] It should be noted that the elastic modulus of the flexible connection part 30 is different from that of the main body 10 and the side body 20, which means that the material of the flexible connection part 30 is different from that of the main body 10 and the side body 20. In other embodiments, the material of the flexible connection part 30 may be the same as that of the main body 10 and the side body 20, but the structural composition of the flexible connection part 30 is different from that of the main body 10 and the side body 20 to achieve the flexibility of the flexible connection part 30. For example, the flexible connection part 30 has a through hole or a groove structure, or the thickness of the flexible connection part 30 is less than that of the main body 10 and the side body 20, which is not limited here. However, preferably, the material of the flexible connection part 30 is different from that of the main body 10 and the side body 20.

[0048] Specifically, the flexible connection portion 30 includes a rubber connection portion or a silicone connection portion.

[0049] Specifically, the main body portion 10 includes an ABS plastic main body portion. In another embodiment, the side body portion 20 includes an ABS plastic main body portion. In other embodiments, the main body portion 10 and the side body portion 20 can be a combination of the above two, or the flexible connecting portion 30, the main body portion 10 and the side body portion 20 can be a combination of the above three, which is not limited here.

[0050] In some embodiments, the flexible connection portion 30 is injection-molded and connected to the main body portion 10 and the side body portion 20. The secondary injection molding process is simple and the molding is stable, so that the overall structure of the anti-collision plate 100 is stable.

[0051] Based on the same inventive concept, the present application also provides a cleaning robot 200 , including a cleaning robot body 210 and the above-mentioned anti-collision plate 100 .

[0052] The anti-collision plate 100 is installed in front of the cleaning robot body 210 along the moving direction of the cleaning robot 200 , and the anti-collision plate 100 can move toward or away from the cleaning robot body 210 .

[0053] Furthermore, the cleaning robot 200 further includes a collision switch, which is installed on a side of the cleaning robot body 210 facing the anti-collision plate 100 , and the collision switch is in contact with the anti-collision plate 100 .

[0054] Furthermore, the collision switch includes multiple ones, at least one collision switch is arranged on the side of the cleaning robot body 210 facing the main part 10, and at least one collision switch is arranged on the side of the cleaning robot body 210 facing the side body part 20.

[0055] The anti-collision plate 100 and the sweeping robot 200 provided in the embodiment of the present application have the following beneficial effects:

[0056] When one side body portion 20 of the anti-collision plate 100 collides with the surrounding obstacles and moves backward, since the side body portion 20 and the main body portion 10 are flexibly connected via the flexible connection portion 30, the resistance against the backward movement of the impacted side can be weakened via the flexible connection, thereby reducing the backward movement resistance of the side body portion 20 and increasing the backward movement amount. Therefore, the pressure exerted by the side body portion 20 on the corresponding collision switch is sufficient, and the collision switch can be triggered in time, thereby improving the triggering sensitivity of the collision switch and not affecting the sensing of obstacles on both sides of the entire machine.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A sweeping robot (200), characterized in that: It comprises a cleaning robot body (210) and an anti-collision plate (100); The anti-collision plate (100) is installed in front of the cleaning robot body (210) along the moving direction of the cleaning robot (200), and the anti-collision plate (100) can move in a direction close to or away from the cleaning robot body (210); the anti-collision plate (100) comprises: A main body portion (10) extending along a first direction; Side body parts (20) are located on both sides of the main body part (10) along the first direction, and the side body parts (20) extend along a second direction intersecting the first direction; and A flexible connection part (30), wherein the flexible connection part (30) is located between the main body part (10) and the side body part (20), and the side body part (20) and the main body part (10) are connected as a whole by means of the corresponding flexible connection part (30).

2. The cleaning robot (200) according to claim 1, characterized in that: The flexible connection portion (30) has elastic deformation capability.

3. The cleaning robot (200) according to claim 2, characterized in that: The elastic modulus of the flexible connection portion (30) is smaller than the elastic modulus of the main body portion (10) and the side body portion (20).

4. The cleaning robot (200) according to claim 3, characterized in that: The flexible connection part (30) comprises a rubber connection part or a silicone connection part.

5. The cleaning robot (200) according to claim 3, characterized in that: The main body part (10) comprises an ABS plastic main body part (10); and / or The side body part (20) comprises an ABS plastic side body part (20).

6. The cleaning robot (200) according to claim 1, characterized in that: The flexible connection part (30) is connected to the main body part (10) and the side body part (20) by injection molding.

7. The cleaning robot (200) according to claim 1, characterized in that: The flexible connection part (30) comprises a flexible corner part, and two sides of the flexible corner part are respectively connected to one side of the main body part (10) and one side of the side body part (20).

8. The cleaning robot (200) according to claim 7, characterized in that: The cross-section of the flexible corner portion is fan-shaped.

9. The cleaning robot (200) according to claim 1, characterized in that: An angle between the first direction and the second direction is greater than 90 degrees.

10. The cleaning robot (200) according to claim 1, characterized in that: The cleaning robot (200) further comprises a collision switch, wherein the collision switch is mounted on a side of the cleaning robot body (210) facing the anti-collision plate (100), and the collision switch is in contact with the anti-collision plate (100).

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