Cleaning robot

Abstract

The utility model provides a cleaning robot. The cleaning robot comprises a robot body, a rolling brush assembly and a lifting assembly, the rolling brush assembly comprises a fixing base, a driving part and a rolling brush, the driving part and the rolling brush are both arranged on the fixing base, the driving part is connected with a first driven part and a second driven part, and the rolling brush is connected with the first driven part so as to be driven by the driving part to rotate; the lifting assembly comprises a guide part and a guide matching part, the guide part is arranged on the machine body, and the guide matching part and the guide part are connected through a matching structure; wherein the guide matching piece is connected with the second driven piece so as to be driven by the driving piece to rotate, the guide matching piece is constructed to ascend and descend between a first position and a second position along the guide piece during rotation through a matching structure, and the fixing base is connected with the guide matching piece so as to ascend and descend along with the guide matching piece in the ascending and descending process of the guide matching piece. Therefore, lifting of the rolling brush assembly can be achieved without additional driving parts, the production cost is lower, and the utilization rate of the internal space of the cleaning robot is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cleaning robot. Background Art

[0002] With the development of economy and technology, people's requirements for cleaning robots are getting higher and higher. Cleaning robots usually include a body and a roller brush connected to the body. In order to avoid the roller brush from hindering the forward movement of the cleaning robot and causing secondary pollution to the items on the cleaning ground, some cleaning robots adopt a solution in which the roller brush can be lifted. By setting a lifting mechanism inside the body, the lifting mechanism generally includes a lifting motor. The output shaft of the lifting motor is connected to the roller brush. When the roller brush needs to be lifted, the lifting motor drives the roller brush to the corresponding position. Although the setting of the lifting mechanism realizes the lifting of the roller brush, since another set of roller brush lifting mechanism is added on the basis of the rotating roller brush, it is inevitable to add a drive motor and a set of drive mechanisms, which not only increases the cost but also occupies more internal space of the robot, resulting in waste of space and cost. Utility Model Content

[0003] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a cleaning robot is provided, which includes: a body; a roller brush assembly, the roller brush assembly includes a fixed seat, a driving member and a roller brush, the driving member and the roller brush are both arranged on the fixed seat, the driving member is connected with a first follower and a second follower, the roller brush is connected to the first follower so as to rotate under the drive of the driving member; and a lifting assembly, the lifting assembly includes a guide member and a guide fitting member, the guide member is arranged on the body, and the guide fitting member and the guide member are connected to each other through a matching structure; wherein the guide fitting member is connected to the second follower so as to rotate under the drive, and the guide fitting member is constructed by the matching structure to rise and fall along the guide member between a first position and a second position when rotating, and the fixed seat is connected to the guide fitting member so as to rise and fall with the guide fitting member during the lifting process of the guide fitting member.

[0004] Exemplarily, a support member is rotatably connected to the body, and the support member has a first state and a second state. When the support member is in the first state, it is interlocked with the guide fitting member to support the guide fitting member in a specified position; when the support member is in the second state, it is disengaged from the guide fitting member to release the support for the guide fitting member.

[0005] Exemplarily, the guide fitting includes a rotating shaft, a gear and a cam, the gear and the cam are arranged on the rotating shaft, and a fitting structure is formed between the gear and the guide.

[0006] Exemplarily, a hook space is formed on the support member, and when the guide fitting member is in a first position, the cam is located in the hook space; when the guide fitting member is in a second position, the cam is located outside the hook space.

[0007] Exemplarily, the support member includes a first section and a second section, the first section has a first end and a second end, the first end is hinged to the body, the second section is bent and extended from the second end relative to the first section, and a hook space is formed between the first section and the second section.

[0008] Exemplarily, the angle between the second section and the first section is less than 90°.

[0009] Exemplarily, the machine body has a bottom surface, and the second section has a guide surface, which is inclined from the end away from the first section toward the bottom surface and toward the first section.

[0010] Exemplarily, the support member also includes a third section connected to the first section, the third section extends along the first end in a direction away from the second section, and the lifting assembly also includes a first elastic member connected to the third section, the first elastic member applies a force to the third section to make the first section abut against the cam.

[0011] Exemplarily, the matching structure includes a first tooth disposed on the guide member and a second tooth disposed on the gear, and the first tooth meshes with the second tooth.

[0012] Exemplarily, the body has a bottom surface, the first tooth includes a first tooth top surface facing the guide mating piece and a first tooth side surface and a second tooth side surface connected at opposite ends of the first tooth top surface, the first tooth side surface is closer to the bottom surface than the second tooth side surface, and the first tooth side surface is inclined toward the bottom surface in a direction away from the first tooth top surface; the second tooth includes a second tooth top surface and a third tooth side surface and a fourth tooth side surface connected at opposite ends of the second tooth top surface, when the second tooth is stuck in the gap between the two first teeth, the third tooth side surface faces the first tooth side surface and the fourth tooth side surface faces the second tooth side surface, and the angle α1 between the third tooth side surface and the fourth tooth side surface is smaller than the angle α2 between the first tooth side surface and the second tooth side surface.

[0013] Exemplarily, an included angle α3 between the second tooth flank and the bottom surface is smaller than an included angle α4 between the first tooth flank and the bottom surface.

[0014] Exemplarily, the guide member includes a fixed end and a movable end, the fixed end is connected to the body, and the movable end is connected to a second elastic member, and the second elastic member applies a force to the guide member so that the guide member is close to the guide matching member.

[0015] Exemplarily, the roller brush assembly further includes a connecting arm, which is fixed to the fixing seat and pivotally connected to the body.

[0016] The cleaning robot provided by the utility model has a lifting assembly including a guide member arranged on the body and a guide fitting member connected to the fixed seat, and the guide fitting member can be lifted and lowered between a first position and a second position relative to the guide member, so that the guide fitting member can drive the roller brush assembly connected thereto to be lifted and lowered relative to the body. The lifting and lowering of the guide fitting member relative to the guide member is achieved by a driving member that drives the roller brush to rotate. When the cleaning robot is cleaning, the driving member drives the roller brush to rotate, and at the same time, the driving member can also drive the lifting assembly to lift the roller brush assembly. The roller brush assembly and the lifting assembly share a driving member and can be integrated into a module to realize the rotation and lifting of the roller brush assembly. The cleaning robot in the prior art usually adds another set of roller brush lifting mechanism on the basis of the roller brush rotating mechanism, which involves two sets of drive motors, module mechanisms and matching drive circuits. The cleaning robot provided by the present application can realize the lifting and lowering of the roller brush assembly without adding another driving member, so that it not only saves production costs, but also effectively saves the internal space occupied by the cleaning robot.

[0017] A series of simplified concepts are introduced in the utility model content, which will be further described in detail in the detailed implementation section. The utility model content section is not intended to limit the key features and essential technical features of the technical solution claimed for protection, nor is it intended to determine the scope of protection of the technical solution claimed for protection.

[0018] The advantages and features of the present invention are described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention. In the drawings,

[0020] Figure 1 is a perspective view of a cleaning robot according to an exemplary embodiment of the present utility model;

[0021] Figure 2 It is a three-dimensional diagram of a roller brush assembly and a lifting assembly according to an exemplary embodiment of the utility model, wherein the guide matching member is in a first position relative to the guide member, and the support member is in a first state;

[0022] Figure 3 The present invention is a three-dimensional diagram of a roller brush assembly and a lifting assembly according to an exemplary embodiment of the present invention, wherein the guide fitting member is in a second position relative to the guide member, and the support member is in a second state.

[0023] Figure 4It is a front view of a roller brush assembly and a lifting assembly according to an exemplary embodiment of the utility model, wherein the guide matching member is in a first position relative to the guide member, and the support member is in a first state;

[0024] Figure 5 for Figure 4 A partial enlarged view of part A;

[0025] Figure 6 is a front view of a roller brush assembly and a lifting assembly according to an exemplary embodiment of the utility model, wherein the support member is in a second state; and

[0026] Figure 7 It is a front view of a roller brush assembly and a lifting assembly according to an exemplary embodiment of the utility model, wherein the guide fitting member is in a second position relative to the guide member, and the support member is in a second state.

[0027] The above drawings include the following reference numerals:

[0028] 10, body; 101, bottom surface; 20, roller brush assembly; 210, fixed seat; 220, driving member; 230, roller brush; 240, connecting arm; 2510, first follower; 2520, second follower; 30, lifting assembly; 310, guide member; 3110, first tooth; 3110a, first tooth top surface; 3110b, first tooth side surface; 3110c, second tooth side surface; 3120, fixed end; 3130, movable end; 320, Guide fitting; 3210, rotating shaft; 3220, gear; 3221, second tooth; 3221a, second tooth top surface; 3221b, third tooth side surface; 3221c, fourth tooth side surface; 3230, cam; 330, support member; 3310, first section; 3311, first end; 3312, second end; 3320, second section; 3321, guide surface; 3330, third section; 340, first elastic member; 350, second elastic member. DETAILED DESCRIPTION

[0029] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0030] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0031] The utility model provides a cleaning robot. Figure 1 and 3 The cleaning robot includes a body 10, a roller brush assembly 20 and a lifting assembly 30. The roller brush assembly 20 may include a fixed seat 210, a driving member 220 and a roller brush 230. The driving member 220 and the roller brush 230 are both arranged on the fixed seat 210. The driving member 220 and the roller brush 230 may move with the movement of the fixed seat 210. The driving member 220 may be connected to a first follower 2510 and a second follower 2520, and the roller brush 230 is connected to the first follower 2510 to rotate under the drive of the driving member 220. The driving member 220 drives the roller brush 230 to rotate through the first follower 2510, and the roller brush 230 contacts the surface to be cleaned and cleans it.

[0032] Combined with reference Figure 1-3 , the lifting assembly 30 may include a guide member 310 and a guide fitting member 320, and the guide member 310 may be arranged on the body 10 so that the guide member 310 and the body 10 can maintain a fixed relative position. The guide fitting member 320 and the guide member 310 may be connected to each other through a matching structure. Among them, the guide fitting member 320 may be connected to the second follower 2520 so as to rotate under the drive of the driving member 220, and the guide fitting member 320 may be constructed through a matching structure to rise and fall along the guide member 310 between a first position and a second position during rotation, and the fixed seat 210 is connected to the guide fitting member 320 so as to rise and fall with the guide fitting member 320 during the lifting process of the guide fitting member 320. The matching structure may be mutually meshing convex teeth, or any other structure that enables the guide member 310 and the guide fitting member 320 to be matched and connected and move relative to each other. The first position can be understood as the position of the guide fitting member 320 relative to the guide member 310 when the roller brush 230 is lifted (such as Figure 2 and 4 ), the second position can be understood as the position of the guide fitting 320 relative to the guide member 310 when the roller brush 230 descends (such as Figure 3 , 67). The guide fitting 320 is lifted and lowered relative to the guide member 310, and drives the fixing seat 210, and then drives the roller brush 230 and the driving member 220 to lift and lower. The lowering of the roller brush 230 can be understood as the roller brush 230 falling and contacting the surface to be cleaned. After the roller brush 230 is lowered, it rotates and can clean the surface to be cleaned, that is, the cleaning mode of the cleaning robot. The lifting of the roller brush 230 can be understood as the roller brush 230 lifting and separating from the surface to be cleaned, which is more convenient for the movement of the cleaning robot, and can be understood as the non-cleaning mode of the cleaning robot.

[0033] The specific lifting process of the roller brush 230 can be as follows: the driving member 220 drives the first follower 2510 and the second follower 2520 to rotate, the first follower 2510 drives the roller brush 230 to rotate, the second driving member 220 drives the guide matching member 320 to rotate, the guide matching member 320 rises and falls between the first position and the second position relative to the guide member 310, driving the fixed seat 210 and the roller brush 230 and the driving member 220 connected to the fixed seat 210 to rise and fall.

[0034] The cleaning robot provided by the utility model, since the lifting assembly 30 includes a guide member 310 arranged on the body 10 and a guide matching member 320 connected to the fixed seat 210, the guide matching member 320 can be lifted and lowered between the first position and the second position relative to the guide member 310, so that the guide matching member 320 can drive the roller brush assembly 20 connected thereto to be lifted and lowered relative to the body 10. Among them, the lifting and lowering of the guide matching member 320 relative to the guide member 310 is driven by the driving member 220 that drives the roller brush 230 to rotate. When the cleaning robot is cleaning, the driving member 220 drives the roller brush 230 to rotate, and at the same time, the driving member 220 can also drive the lifting assembly 30 to realize the lifting of the roller brush assembly 20. The roller brush assembly 20 and the lifting assembly 30 share the driving member 220, and can be integrated into a module to realize the rotation and lifting of the roller brush assembly 20. The cleaning robot in the prior art usually adds another set of roller brush lifting mechanism on the basis of the roller brush rotating mechanism, which involves two sets of drive motors, module mechanisms and matching drive circuits. The cleaning robot provided in the present application can realize the lifting and lowering of the roller brush assembly 20 without adding an additional driving component 220. This not only saves production costs, but also effectively saves the internal space of the cleaning robot, which can be better used for the layout of other structural parts, such as dust boxes, water tanks, etc.

[0035] Exemplarily, the body 10 may be rotatably connected with a support member 330. The support member 330 may have a first state and a second state. Figure 4 , the support member 330 is in the first state and is engaged with the guide fitting member 320 to support the guide fitting member 320 at a specified position. Figure 7, the support member 330 is in the second state, and is separated from the guide fitting member 320 to release the support for the guide fitting member 320. The first state and the second state can be understood as follows: in the first state, the support member 330 can support the guide fitting member 320, and at this time, the guide fitting member 320 and the roller brush assembly 20 are both supported; in the second state, the separated support member 330 and the guide fitting member 320 are independent of each other, the support member 330 is connected to the body 10, and the guide fitting member 320 and the roller brush assembly 20 fall. The switching of the support member 330 between the first state and the second state can be achieved by rotating the support member 330.

[0036] Specifically, the top end of the support member 330 is connected to the body 10, and the bottom end of the support member 330 is movable. When the support member 330 is in the first state, the support member 330 is locked with the guide fitting member 320. Due to the rotation of the cam 3230, the support member 330 is pushed open, and in the process of the support member 330 switching from the first state to the second state, the bottom end of the support member 330 moves in a direction away from the guide fitting member 320, and the support member 330 rotates and gradually moves away from the guide fitting member 320 until the support member 330 is completely separated from the guide fitting member 320, that is, the support member 330 switches to the second state. When the support member 330 is in the second state, the support member 330 is completely separated from the guide fitting member 320. When the guide fitting member 320 rotates, the guide fitting member 320 moves upward relative to the guide member 310 to the bottom end of the support member 330, and then continues to be lifted along the guide surface 3321 of the support member 330 to the hook space of the support member 330, and the support member 330 is locked with the guide fitting member 320, so that the support member 330 is switched to the first state. The overall structure of the support member 330 set in this way is simpler and the production difficulty is lower.

[0037] In an embodiment not shown, the switching of the support member between the first state and the second state may be achieved in any other manner, such as by changing the structure of the support member itself.

[0038] For example, refer to Figure 2 , 3 , 4, 6 and 7, the guide matching member 320 may include a rotating shaft 3210, a gear 3220 and a cam 3230. The gear 3220 and the cam 3230 may be disposed on the rotating shaft 3210. When the rotating shaft 3210 rotates, the gear 3220 and the cam 3230 rotate accordingly. A matching structure may be formed between the gear 3220 and the guide member 310.

[0039] For example, a hook space may be formed on the support member 330. When the guide fitting member 320 is in the first position, the cam 3230 is located in the hook space. Figure 2 and 4, the cam 3230 in the hook space can be supported by the support member 330, so that the guide fitting member 320 and the roller brush assembly 20 connected to the guide fitting member 320 are supported. When the guide fitting member 320 is in the second position, the cam 3230 is located outside the hook space, such as Figure 3 , 6 7, the cam 3230 outside the hook space is separated from the support member 330, so that the guide fitting member 320 and the roller brush assembly 20 connected to the guide fitting member 320 are separated from the support member 330, and the roller brush assembly 20 can fall. When the rotating shaft 3210 rotates, the gear 3220 cooperates with the guide member 310, and the gear 3220 moves relative to the guide member 310, which can drive the roller brush assembly 20 to move. In this way, the support member 330 supports and drops the roller brush assembly 20 through the cooperation between the support member 330 and the cam 3230, and the roller brush assembly 20 is lifted and lowered through the cooperation between the guide member 310 and the gear 3220, and the structural setting is simpler and more reasonable.

[0040] For example, in conjunction with reference Figure 1 and 2 The support member 330 may include a first section 3310 and a second section 3320. The first section 3310 may have a first end 3311 and a second end 3312. The first end 3311 may be hinged to the body 10, and the second section 3320 may be bent and extended from the second end 3312 relative to the first section 3310, and a hook space is formed between the first section 3310 and the second section 3320. The first end 3311 is hinged to the body 10, and the second end 3312 is movable relative to the first end 3311, so that the first section 3310 as a whole can rotate around the first end 3311. The second section 3320 is connected to the second end 3312, and the hook space formed between the first section 3310 and the second section 3320 has an opening facing the cam 3230, so that the cam 3230 can enter or exit the hook space through the opening. The arrangement of the first section 3310 and the second section 3320 makes the overall structure of the support member 330 simpler. The first section 3310 can ensure the connection between the support member 330 and the body 10 , and the second section 3320 contacts the cam 3230 and ensures the support for the cam 3230 , that is, the support member 330 supports the roller brush assembly 20 .

[0041] For example, refer to Figure 2-4, the angle between the second section 3320 and the first section 3310 is less than 90°. In other words, the second section 3320 gradually tilts upward in a direction away from the first section 3310. When the cam 3230 is located in the hook space, the cam 3230 abuts against the second section 3320. The second section 3320 not only supports the cam 3230 upward, but also exerts a pulling force on it toward the first section 3310. This arrangement allows the cam 3230 to be more stably located in the hook space, thereby ensuring the stability of the roller brush 230 in a raised state. In an embodiment not shown, a vertical relationship may be satisfied between the second section and the first section.

[0042] For example, in conjunction with reference Figure 1 and 6 The machine body 10 may have a bottom surface 101, and the second section 3320 may have a guide surface 3321, and the guide surface 3321 is inclined from the end away from the first section 3310 toward the bottom surface 101 and toward the first section 3310. Figure 6 Taking the middle view as an example, the guide surface 3321 is tilted from top to bottom and to the left. In this way, when the cam 3230 contacts the support member 330, the support member 330 can be pushed better, so that the support member 330 can be switched between the first state and the second state better. In an embodiment not shown, the extension direction of the end face of the second section away from the first section can be parallel to the extension direction of the first section.

[0043] For example, in conjunction with reference Figure 1 and 6 , the support member 330 may also include a third section 3330 connected to the first section 3310. The third section 3330 extends along the first end 3311 in a direction away from the second section 3320, and the lifting assembly 30 also includes a first elastic member 340 connected to the third section 3330, and the first elastic member 340 applies a force to the third section 3330 to make the first section 3310 abut against the cam 3230. The support member 330 as a whole may be Z-shaped. Specifically, one end of the first elastic member 340 away from the third section 3330 may be connected to the body 10. The provision of the first elastic member 340 allows the first section 3310 to abut against the cam 3230, thereby allowing the cam 3230 to better stay in the hook space, thereby ensuring the stability of the support member 330 in supporting the roller brush assembly 20.

[0044] Exemplarily, the matching structure may include a first tooth 3110 disposed on the guide member 310 and a second tooth 3221 disposed on the gear 3220, and the first tooth 3110 is meshed with the second tooth 3221. Through the meshing of the first tooth 3110 and the second tooth 3221, the gear 3220 moves relative to the guide member 310, thereby driving the roller brush assembly 20 to lift and lower the roller brush assembly 20, and the structural setting is simpler. In an embodiment not shown, the guide member and the guide matching member can be matched, connected and moved relative to each other by any other matching structure.

[0045] For example, in conjunction with reference Figure 1 and 5 The body 10 may have a bottom surface 101, the first tooth 3110 includes a first tooth top surface 3110a facing the guide fitting 320 and a first tooth side surface 3110b and a second tooth side surface 3110c connected at opposite ends of the first tooth top surface 3110a, the first tooth side surface 3110b is closer to the bottom surface 101 than the second tooth side surface 3110c, and the first tooth side surface 3110b is inclined toward the bottom surface 101 in a direction away from the first tooth top surface 3110a, which is beneficial for the first tooth side surface 3110b to be able to move the second tooth 3220 out of the gap between two adjacent first teeth 3110.

[0046] Exemplarily, the second tooth 3221 includes a second tooth top surface 3221a and a third tooth side surface 3221b and a fourth tooth side surface 3221c connected to opposite ends of the second tooth top surface 3221a. When the second tooth 3221 is stuck to the gap between the two first teeth 3110, the third tooth side surface 3221b faces the first tooth side surface 3110b and the fourth tooth side surface 3221c faces the second tooth side surface 3110c. The angle α1 between the third tooth side surface 3221b and the fourth tooth side surface 3221c can be smaller than the angle α2 between the first tooth side surface 3110b and the second tooth side surface 3110c. In this way, the gap between the two adjacent first teeth 3110 is more convenient for the second tooth 3221 to be stuck, and the guide fitting 320 moves more smoothly relative to the guide member 310, thereby making the lifting process of the roller brush assembly 20 smoother.

[0047] For example, continue to combine with reference Figure 1 and 5, the angle α3 between the second tooth side surface 3110c and the bottom surface 101 is smaller than the angle α4 between the first tooth side surface 3110b and the bottom surface 101. The dotted line MN schematically represents the projection of the plane where the bottom surface 101 is located in the figure. α3 is smaller than α4. On the one hand, the second tooth side surface 3110c can better support the fourth tooth side surface 3221c, prevent the second tooth 3221 from falling out of the gap between the two adjacent first teeth 3110, and realize the support of the guide member 310 to the gear 3220 during the lifting process. In addition, when the roller brush is descending, due to the smaller α3, the force of the second tooth 3221 to push the first tooth 3110 downward is larger, reducing the component force of the second tooth 3221 to horizontally push the first tooth 3110 away (it can be understood that the direction of the component force to horizontally push the first tooth 3110 away is related to the relative position of the guide member 310 and the gear 3220), so that the second tooth 3221 can fall stably. On the other hand, the first tooth side surface 3110b can provide more sufficient moving space for the second tooth 3220 to move out of the gap between two adjacent first teeth 3110, avoiding the first tooth side surface 3110b from blocking the movement of the second tooth 3220, and the meshing process of the first tooth 3110 and the second tooth 3221 is smoother, further ensuring the smooth lifting process of the roller brush assembly 20. In an embodiment not shown, the second tooth side surface and the bottom surface can be equal to the angle between the top surface and the bottom surface of the first tooth.

[0048] For example, in conjunction with reference Figure 1 and 6 The guide member 310 may include a fixed end 3120 and a movable end 3130, the fixed end 3120 may be connected to the body 10, and the movable end 3130 may be connected to a second elastic member 350, and the second elastic member 350 applies a force to the guide member 310 so that the guide member 310 is close to the guide matching member 320. Specifically, the second elastic member 350 may be connected to the body 10. Figure 6 For example, the second elastic member 350 pulls the guide member 310 to the right, so that the guide member 310 is close to the guide matching member 320. In the embodiment where the guide matching member 320 includes a gear 3220, the guide member 310 can better mesh with the gear 3220. In this way, the matching between the guide member 310 and the guide matching member 320 is more stable, and the lifting process of the roller brush assembly 20 is further stabilized.

[0049] For example, in conjunction with reference Figure 1 and 3The roller brush assembly 20 may further include a connecting arm 240, which is fixed to the fixing seat 210 and pivotally connected to the body 10. That is, the connecting arm 240 can drive the fixing seat 210 to move relative to the body 10, that is, drive the driving member 220 and the roller brush 230 connected to the fixing seat 210 to move together. Specifically, a rotating shaft 3210 may be provided on the connecting arm 240, and a rotating shaft hole may be correspondingly provided on the body 10. The rotating shaft 3210 is inserted into the rotating shaft hole, and the axis of the rotating shaft 3210 serves as the lifting axis of the roller brush assembly 20. With this arrangement, the connection structure between the roller brush assembly 20 and the body 10 is simpler.

[0050] Exemplarily, the lifting process of the roller brush assembly 20 is as follows: initially, Figure 7 , the guide fitting 320 is in the second position relative to the guide member 310. The output shaft of the driving member 220 rotates in the direction PO, driving the second follower 2520 to rotate in the direction OP. At the same time, the second follower 2520 drives the first follower 2510 to rotate in the direction OP through the gear, thereby driving the roller brush 230 to rotate in the direction OP (it can be understood that the rotation direction of the roller brush 230 is related to the specific structure of the first follower 2510. In addition, a driving member 220 drives the first follower 2510 and the second follower 2520 can also be driven by other means, such as a chain, a belt, etc.). The second follower 2520 rotates in the direction OP, driving the gear 3220 and the cam 3230 to rotate in the direction OP. The gear 3220 cooperates with the guide member 310 to move the guide fitting 320 upward relative to the guide member 310. The guide fitting 320 drives the roller brush assembly 20 to move upward, that is, the roller brush assembly 20 is lifted. And, referring to Figure 6 As the guide fitting 320 moves upward relative to the guide member 310, the cam 3230 contacts and pushes the support member 330, and the support member 330 switches from the second state to the first state. Figure 4 The cam 3230 is located in the hook space of the support member 330, which can more stably keep the roller brush assembly 20 in the raised position. It can be understood that even if the gear 3220 moves to a certain range of the guide member 310 close to the fixed end 3120, the first tooth 3110 is no longer provided in the range, and the gear 3220 moves to the range and will idle until the driving member 220 stops rotating, and the roller brush assembly 20 is in the raised position through the support of the support member 330 on the guide matching member 320.

[0051] Correspondingly, the descending process of the roller brush assembly 20 is as follows: initially, Figure 4, the cam 3230 is located in the hook space of the support member 330, and the guide fitting member 320 is in the first position relative to the guide member 310. The output shaft of the driving member 220 rotates in the direction OP, driving the second follower 2520 to rotate in the direction PO, and at the same time, the second follower 2520 drives the first follower 2510 to rotate in the direction PO through the gear, thereby driving the roller brush 230 to rotate in the direction PO (it can be understood that the rotation direction of the roller brush 230 is related to the specific structure of the first follower 2510. In addition, one driving member 220 can drive the first follower 2510 and the second follower 2520 in other ways, such as a chain, a belt, etc.). The second follower 2520 rotates in the direction PO, driving the gear 3220 and the cam 3230 to rotate in the direction PO. The gear 3220 cooperates with the guide member 310, so that the guide fitting member 320 moves downward relative to the guide member 310, and the guide fitting member 320 drives the roller brush assembly 20 to move downward, that is, the roller brush assembly 20 is lowered. As the guide member 310 moves downward relative to the guide fitting member 320, the cam 3230 pushes the support member 330 and switches from the first state to the second state (this process can also be referred to Figure 6 ). The support member 330 in the second state, referring to Figure 7 The cam 3230 is separated from the support member 330, and the roller brush assembly 20 can continue to descend under the action of gravity until it contacts the surface to be cleaned. At this time, the roller brush continues to rotate along the direction PO and cleans the surface to be cleaned.

[0052] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0056] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cleaning robot, characterized in that: include: Body; A roller brush assembly, the roller brush assembly comprising a fixed seat, a driving member and a roller brush, the driving member and the roller brush are both arranged on the fixed seat, the driving member is connected with a first follower and a second follower, the roller brush is connected with the first follower to rotate under the drive of the driving member; as well as A lifting assembly, the lifting assembly comprising a guide member and a guide matching member, the guide member is arranged on the machine body, and the guide matching member and the guide member are connected to each other through a matching structure; Among them, the guide mating piece is connected to the second follower so as to rotate under the drive of the driving piece, and the guide mating piece is constructed through the mating structure to rise and fall along the guide piece between a first position and a second position when rotating, and the fixed seat is connected to the guide mating piece so as to rise and fall with the guide mating piece during the lifting and lowering process of the guide mating piece.

2. The cleaning robot according to claim 1, characterized in that: A support member is rotatably connected to the machine body, and the support member has a first state and a second state. When the support member is in the first state, it is interlocked with the guide fitting member to support the guide fitting member in a specified position; when the support member is in the second state, it is disengaged from the guide fitting member to release the support for the guide fitting member.

3. The cleaning robot according to claim 2, characterized in that: The guide fitting includes a rotating shaft, a gear and a cam, the gear and the cam are arranged on the rotating shaft, and the matching structure is formed between the gear and the guide member; a hook space is formed on the support member, and when the guide fitting is in the first position, the cam is located in the hook space; when the guide fitting is in the second position, the cam is located outside the hook space.

4. The cleaning robot according to claim 3, characterized in that: The support member includes a first section and a second section, the first section has a first end and a second end, the first end is hinged to the body, the second section is bent and extended from the second end relative to the first section, and the hook space is formed between the first section and the second section.

5. The cleaning robot according to claim 4, characterized in that: The angle between the second section and the first section is less than 90°.

6. The cleaning robot according to claim 4, characterized in that: The machine body has a bottom surface, and the second section has a guide surface, which is inclined from an end away from the first section toward the bottom surface and toward a direction close to the first section.

7. The cleaning robot according to claim 4, characterized in that: The support member also includes a third section connected to the first section, and the third section extends along the first end in a direction away from the second section. The lifting assembly also includes a first elastic member connected to the third section, and the first elastic member applies a force to the third section to make the first section abut against the cam.

8. The cleaning robot according to claim 3, characterized in that: The matching structure includes a first tooth arranged on the guide member and a second tooth arranged on the gear, and the first tooth is meshed with the second tooth.

9. The cleaning robot according to claim 8, characterized in that: The machine body has a bottom surface, the first tooth includes a first tooth top surface facing the guide fitting and a first tooth side surface and a second tooth side surface connected at opposite ends of the first tooth top surface, the first tooth side surface is closer to the bottom surface than the second tooth side surface, and the first tooth side surface is inclined toward the bottom surface in a direction away from the first tooth top surface.

10. The cleaning robot according to claim 9, characterized in that: The second tooth includes a second tooth top surface and a third tooth side surface and a fourth tooth side surface connected at opposite ends of the second tooth top surface. When the second tooth is stuck in the gap between two first teeth, the third tooth side surface faces the first tooth side surface and the fourth tooth side surface faces the second tooth side surface. The angle α1 between the third tooth side surface and the fourth tooth side surface is smaller than the angle α2 between the first tooth side surface and the second tooth side surface.

11. The cleaning robot according to claim 9 or 10, characterized in that: An included angle α3 between the second tooth side surface and the bottom surface is smaller than an included angle α4 between the first tooth side surface and the bottom surface.

12. The cleaning robot according to claim 1, characterized in that: The guide member includes a fixed end and a movable end, wherein the fixed end is connected to the machine body, and the movable end is connected to a second elastic member, and the second elastic member applies a force to the guide member so that the guide member is close to the guide matching member.

13. The cleaning robot according to claim 1, characterized in that: The roller brush assembly also includes a connecting arm, which is fixed to the fixing seat and pivotally connected to the body.

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