Cleaning mechanism and cleaning robot

Abstract

The present invention relates to the technical field of cleaning equipment, and provides a cleaning mechanism and a cleaning robot. The cleaning mechanism includes a driver, a lifting assembly, and a cleaning component bracket; the driver has an output rotating shaft; the lifting assembly includes a lifting rotating shaft with one end connected to the output rotating shaft, a sleeve sleeved on the lifting rotating shaft, and a displacement member rotatably installed on the inner wall of the sleeve; the inner wall of the sleeve is provided with a limiting flange and a spiral flange; the outer wall of the lifting rotating shaft is provided with an abutting portion located inside the sleeve, and the abutting portion is used to abut against the limiting flange or the spiral flange; one end of the displacement member is engaged with one end of the spiral flange close to the limiting flange and the other end is used to abut against the limiting flange; the cleaning component bracket is connected to the end of the lifting rotating shaft away from the driver. The above-mentioned cleaning mechanism can achieve the ground cleaning function and the lifting function of the cleaning component bracket only by using one driver, with a compact structure. The cleaning robot using the above-mentioned cleaning mechanism can effectively reduce its volume.

Description

Technical Field

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

[0002] A mopping and sweeping integrated robot is a cleaning robot that simultaneously has the functions of sweeping and mopping the floor. It has the characteristics of convenient cleaning, time-saving and labor-saving, enabling people to get rid of cumbersome housework and greatly improving the convenience of people's lives.

[0003] However, when the cleaning robot is working, if the floor is covered with a carpet, moving the cleaning robot onto the carpet will dirty the carpet with the stains on the mop. Moreover, after the cleaning robot has worked for a period of time, a large amount of dirt will adhere to the mop. If the cleaning robot continues to work, it will not only fail to achieve a cleaning effect, but will instead cause secondary pollution to the floor.

[0004] In view of this, cleaning robots with a mop lifting function have emerged on the market. However, such cleaning robots need to be provided with at least two drives. One drive is used to drive the mop for cleaning work, and the other drive is used to drive the mop to move up and down. However, adopting such a structure results in an increase in the volume of the cleaning robot, making it impossible for the cleaning robot to enter narrow spaces for cleaning work, and the practicality is greatly reduced. Summary of the Invention

[0005] The purpose of the present invention is to provide a cleaning mechanism and a cleaning robot, aiming to solve the technical problems of large volume and poor practicality of the existing cleaning robot with a mop lifting function.

[0006] To achieve the above object, the technical solution adopted in the embodiment of the present invention is: a cleaning mechanism, comprising:

[0007] A drive having an output rotating shaft;

[0008] A lifting assembly, including a lifting rotating shaft with one end connected to the output rotating shaft and capable of reciprocating along the axis of the output rotating shaft, a sleeve relatively fixedly arranged with the drive and sleeved on the lifting rotating shaft, and a displacement member rotatably installed on the inner wall of the sleeve; a limiting flange and a spiral flange are provided on the inner wall of the sleeve, and the limiting flange and the spiral flange are arranged in sequence along the axis of the lifting rotating shaft towards the direction close to the drive; a abutting portion located inside the sleeve is provided on the outer wall of the lifting rotating shaft, and the abutting portion is used to abut against the limiting flange or the spiral flange; one end of the displacement member is engaged with one end of the spiral flange close to the limiting flange, and the other end of the displacement member is used to abut against the limiting flange;

[0009] The cleaning component bracket is used to mount the mop and is connected to the end of the lifting rotating shaft away from the driver.

[0010] The cleaning mechanism provided by the embodiment of the present invention has at least the following beneficial effects: By arranging a limiting flange and a spiral flange in the sleeve, rotatably mounting the displacement member on the inner wall of the sleeve, and arranging an abutting portion on the lifting rotating shaft, when cleaning the ground is required, the abutting portion abuts against the limiting flange, and the driver drives the lifting rotating shaft to rotate in the first rotation direction through the output rotating shaft. Each time the abutting portion touches the displacement member, it will lift the displacement member, so that the abutting portion can continuously move along the limiting flange, so that the mop on the cleaning component bracket can keep in contact with the ground and clean the ground by rotating; When it is necessary to lift the mop, the driver drives the lifting rotating shaft to rotate in the second rotation direction through the output rotating shaft. One end of the displacement member away from the spiral flange rotates under its own gravity to abut against the limiting flange, thereby connecting the limiting flange and the spiral flange. The abutting portion moves from the limiting flange through the displacement member to the spiral flange and moves along the spiral flange in the direction close to the driver, thereby driving the lifting rotating shaft to move in the direction close to the driver, so that the cleaning component bracket moves in the direction close to the driver together with the lifting rotating shaft, realizing the lifting of the cleaning component bracket and separating the mop on the cleaning component bracket from the ground; When it is necessary to restore to the working state of cleaning the ground, the driver drives the lifting rotating shaft to rotate in the first rotation direction again through the output rotating shaft. One end of the displacement member away from the spiral flange rotates under its own gravity to abut against the limiting flange, thereby connecting the limiting flange and the spiral flange. The abutting portion moves along the spiral flange in the direction away from the driver and passes through the displacement member to reach the limiting flange again, so that the abutting portion can continuously move along the limiting flange. At this time, the cleaning component bracket descends to the position where the mop contacts the ground, so that the mop can continue to clean the ground; Thus, it can be seen that the above cleaning mechanism can realize the ground cleaning function and the lifting function of the cleaning component bracket only by using one driver, with a compact structure. The cleaning robot adopting the above cleaning mechanism can effectively reduce the volume and improve the practicability.

[0011] In one embodiment, the lifting assembly includes at least two of the displacement members, at least two of the spiral flanges are provided on the inner wall of the sleeve, at least two of the abutting portions are provided on the lifting rotating shaft, the spiral flanges are arranged in parallel with each other, and each of the displacement members is arranged in one-to-one correspondence with each of the spiral flanges.

[0012] In one embodiment, the lifting assembly further includes an elastic member, one end of the elastic member abuts against the output rotating shaft and the other end abuts against the lifting rotating shaft.

[0013] In one embodiment, the lifting rotating shaft is provided with a shaft connecting cavity having an orifice, the output rotating shaft is connected to the shaft connecting cavity through the orifice, and the elastic member is accommodated in the shaft connecting cavity.

[0014] In one embodiment, the displacement member includes a rotating portion and a swinging portion. The swinging portion is rotatably mounted on the inner wall of the sleeve through the rotating portion. One end of the swinging portion is engaged with one end of the spiral flange close to the limiting flange, and the other end of the swinging portion is used to abut against the limiting flange.

[0015] In one embodiment, the rotating portion is connected to one end of the swinging portion close to the spiral flange.

[0016] In one embodiment, a limiting portion is provided at one end of the spiral flange away from the limiting flange.

[0017] In one embodiment, a connecting portion is provided on the outer wall of the sleeve, and the sleeve is fixedly connected to the driver through the connecting portion.

[0018] In one embodiment, the cleaning component bracket is a mop bracket.

[0019] To achieve the above object, the present invention further provides a cleaning robot, including a body and the above cleaning mechanism, and the cleaning mechanism is installed on the body.

[0020] Since the above cleaning robot adopts all the embodiments of the above cleaning mechanism, it has at least all the beneficial effects of the above embodiments, which will not be elaborated here one by one.

[0021] In one embodiment, the cleaning robot includes at least two of the above cleaning mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the cleaning robot provided by the embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the cleaning mechanism provided by the embodiment of the present invention;

[0025] Figure 3 For Figure 2 the exploded view of the cleaning mechanism shown;

[0026] Figure 4 is Figure 2 the left view of the cleaning mechanism shown;

[0027] Figure 5 is Figure 4 the sectional view taken along line A-A of the cleaning mechanism shown;

[0028] Figure 6 the schematic structural view of the installation structure of the sleeve and the displacement member provided by the embodiment of the present invention;

[0029] Figure 7 the schematic structural view of the lifting rotating shaft provided by the embodiment of the present invention;

[0030] Figure 8 the schematic structural view of the displacement member provided by the embodiment of the present invention;

[0031] Figure 9 the schematic structural view of the working principle of the lifting assembly when the cleaning mechanism provided by the embodiment of the present invention is in the first working state;

[0032] Figure 10 the schematic structural view of the working principle of the lifting assembly when the cleaning mechanism provided by the embodiment of the present invention is in the second working state.

[0033] Among them, each reference numeral in the figure:

[0034] 100, cleaning robot; 110, body; 120, cleaning mechanism; 121, driver; 1211, output rotating shaft; 122, lifting assembly; 1221, lifting rotating shaft; 12211, abutting portion; 12212, shaft connection cavity; 1222, sleeve; 12221, limiting flange; 12222, spiral flange; 12223, limiting portion; 12224, connecting portion; 1223, displacement member; 12231, rotating portion; 12232, swinging portion; 12233, buckling portion; 1224, elastic member; 123, cleaning component bracket. Detailed Embodiment

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0038] In the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the related art, in order to avoid obstacles and prevent secondary pollution to the ground, cleaning robots with a mopping cloth lifting function have emerged on the market. However, such cleaning robots require at least two drivers. One driver is used to drive the mopping cloth for cleaning work, and the other driver is used to drive the mopping cloth to perform a lifting movement. However, adopting such a structure results in an increase in the volume of the cleaning robot, making it impossible for the cleaning robot to enter narrow spaces for cleaning work, and the practicality is greatly reduced.

[0040] In view of this, the present invention provides a cleaning robot 100. Please refer to Figure 1 As shown, the above-mentioned cleaning robot 100 includes a body 110 and a cleaning mechanism 120 installed on the body 110. To increase the cleaning area of the cleaning robot 100, at least two cleaning mechanisms 120 can be provided. Since the cleaning mechanism 120 only needs to adopt one driver 121 to achieve the ground cleaning function and the mopping cloth lifting function, the structure is more compact, thereby effectively reducing the volume of the cleaning robot 100 and improving the practicality.

[0041] The above-mentioned cleaning mechanism 120 will be described in detail below with reference to the drawings.

[0042] Please refer to Figures 2 to 7As shown, a cleaning mechanism 120 includes a driver 121, a lifting assembly 122, and a cleaning component bracket 123. The driver 121 has an output rotating shaft 1211. The lifting assembly 122 includes a lifting rotating shaft 1221 whose one end is connected to the output rotating shaft 1211 and can reciprocate along the axis of the output rotating shaft 1211, a sleeve 1222 that is relatively fixedly arranged with the driver 121 and sleeved on the lifting rotating shaft 1221, and a displacement member 1223 rotatably mounted on the inner wall of the sleeve 1222. The inner wall of the sleeve 1222 is provided with a limiting flange 12221 and a spiral flange 12222, and the limiting flange 12221 and the spiral flange 12222 are arranged in sequence along the axis of the lifting rotating shaft 1221 toward the direction close to the driver 121. The outer wall of the lifting rotating shaft 1221 is provided with an abutting portion 12211 located inside the sleeve 1222, and the abutting portion 12211 is used to abut against the limiting flange 12221 or the spiral flange 12222. One end of the displacement member 1223 is engaged with one end of the spiral flange 12222 close to the limiting flange 12221, and the other end of the displacement member 1223 is used to abut against the limiting flange 12221. The cleaning component bracket 123 is used to mount a mop and is connected to the end of the lifting rotating shaft 1221 far from the driver 121.

[0043] The working principle of the above cleaning mechanism 120 is as follows:

[0044] First, with the state where the abutting portion 12211 abuts against the limiting flange 12221 as the initial state, in the initial state, the displacement member 1223 rotates by the action of gravity to make the end far from the spiral flange 12222 abut against the limiting flange 12221. Please refer to Figure 5 and Figure 9 As shown, when it is necessary to clean the ground, the abutting portion 12211 abuts against the limiting flange 12221, and the driver 121 drives the lifting rotating shaft 1221 to perform a rotational motion in the first rotation direction R 1 through the output rotating shaft 1211. Each time the abutting portion 12211 touches the displacement member 1223, it will lift the displacement member 1223, so that the abutting portion 12211 can continuously move along the limiting flange 12221 through the displacement member 1223, so that the mop on the cleaning component bracket 123 can keep in contact with the ground and clean the ground by rotation; Please refer to Figure 5 and Figure 10 As shown, when it is necessary to lift the mop, the driver 121 drives the lifting rotating shaft 1221 to rotate in the second rotation direction R 2 which is opposite to the first rotation direction R 1In the opposite direction), the cleaning mechanism 120 rotates. One end of the displacement member 1223 away from the spiral flange 12222 rotates under its own gravity to abut against the limiting flange 12221, thereby connecting the limiting flange 12221 and the spiral flange 12222. The abutting portion 12211 moves from the limiting flange 12221 through the displacement member 1223 to the spiral flange 12222 and moves along the spiral flange 12222 in the direction close to the driver 121, thereby driving the lifting rotating shaft 1221 to move in the direction close to the driver 121, causing the cleaning component bracket 123 to move in the direction close to the driver 121 together with the lifting rotating shaft 1221, realizing the lifting of the cleaning component bracket 123 and separating the mop on the cleaning component bracket 123 from the ground; when it is necessary to restore to the working state of cleaning the ground, the driver 121 drives the lifting rotating shaft 1221 to rotate again in the first rotation direction R 1 The cleaning mechanism 120 rotates. One end of the displacement member 1223 away from the spiral flange 12222 rotates under its own gravity to abut against the limiting flange 12221, thereby connecting the limiting flange 12221 and the spiral flange 12222. The abutting portion 12211 moves along the spiral flange 12222 in the direction away from the driver 121 and passes through the displacement member 1223 to reach the limiting flange 12221 again, enabling the abutting portion 12211 to continuously move along the limiting flange 12221. At this time, the cleaning component bracket 123 descends to the position where the mop contacts the ground, enabling the mop to continue cleaning the ground; working in such a cycle, the cleaning mechanism 120 realizes the switching between the ground cleaning function and the mop lifting function.

[0045] It can be seen that the above cleaning mechanism 120 can realize the ground cleaning function and the lifting function of the cleaning component bracket 123 only by using one driver 121. The structure is compact. The cleaning robot 100 adopting the above cleaning mechanism 120 can effectively reduce the volume and improve the practicability.

[0046] In some specific examples of this embodiment, to further improve the structural compactness of the cleaning mechanism 120, the driver 121 adopts a reduction motor. Of course, there are various types of drivers 121, such as high-speed motors, constant-speed motors, etc., which are not specifically limited here.

[0047] In this embodiment, please refer to Figure 6 As shown, the lifting assembly 122 includes at least two displacement members 1223. The inner wall of the sleeve 1222 is provided with at least two spiral flanges 12222. The lifting rotating shaft 1221 is provided with at least two abutting portions 12211. Each spiral flange 12222 is arranged in parallel, and each displacement member 1223 is arranged in one-to-one correspondence with each spiral flange 12222.

[0048] Taking the case where the lifting component 122 includes two displacement members 1223, the inner wall of the sleeve 1222 is provided with two spiral flanges 12222, and the lifting rotating shaft 1221 is provided with two abutting portions 12211 as an example, the two displacement members 1223 are centrally symmetrically arranged with the axis of the lifting rotating shaft 1221 as the center of symmetry. Similarly, the two spiral flanges 12222 are centrally symmetrically arranged with the axis of the lifting rotating shaft 1221 as the center of symmetry, and the two abutting portions 12211 are centrally symmetrically arranged with the axis of the lifting rotating shaft 1221 as the center of symmetry. When the driver 121 drives the lifting rotating shaft 1221 to rotate again in the first rotation direction R 1 When rotating on, each abutting portion 12211 moves on the limiting flange 12221. When the driver 121 drives the lifting rotating shaft 1221 to rotate in the second rotation direction R 2 When rotating on, each abutting portion 12211 reaches a spiral flange 12222 from the limiting flange 12221 through a displacement member 1223. In this way, the lifting rotating shaft 1221 can achieve overall force balance whether it is moving up and down or rotating, effectively avoiding the tilting of the lifting rotating shaft 1221 and ensuring the running stability of the cleaning mechanism 120.

[0049] In this embodiment, please refer to Figure 3 and Figure 5 As shown, the lifting component 122 further includes an elastic member 1224. One end of the elastic member 1224 abuts against the output rotating shaft 1211 and the other end abuts against the lifting rotating shaft 1221. The elastic member 1224 is kept in a compressed state. When the lifting rotating shaft 1221 moves in the direction close to the driver 121, the elastic member 1224 is further compressed, so that the elastic member 1224 generates greater elastic potential energy. When the lifting rotating shaft 1221 moves in the direction away from the driver 121, the elastic potential energy of the elastic member 1224 is gradually released until the mop contacts the ground (that is, the abutting member abuts against the limiting flange 12221). At this time, the elastic member 1224 still retains part of the elastic potential energy to tightly press the abutting portion 12211 of the lifting rotating shaft 1221 against the limiting flange 12221 to ensure that there is sufficient contact force between the mop and the ground, thereby improving the cleaning effect of the cleaning mechanism 120.

[0050] In some specific examples of this embodiment, the elastic member 1224 is a spring. Of course, the elastic member 1224 can also be other components that can generate elastic potential energy, such as elastic blocks, elastic sheets, etc., which are not specifically limited here.

[0051] In some specific examples of this embodiment, please refer to Figure 5As shown, the lifting shaft 1221 is provided with an axial connection cavity 12212 having a cavity opening. The axial connection cavity 12212 is a long strip-shaped cavity extending along the axial direction of the lifting shaft 1221 . The output shaft 1211 is connected to the axial connection cavity 12212 through the cavity opening. The elastic member 1224 is accommodated in the axial connection cavity 12212 . Specifically, the outer wall of the output shaft 1211 is matched with the wall gap of the axial connection cavity 12212, so that the output shaft 1211 and the lifting shaft 1221 can move relative to each other along the axis, thereby improving the stability of the lifting shaft 1221 during the lifting movement; in addition, by accommodating the elastic member 1224 in the axial connection cavity 12212, the position of the elastic member 1224 can be effectively limited, thereby preventing the elastic member 1224 from being separated from the position between the lifting shaft 1221 and the output shaft 1211, which can effectively improve the working reliability of the cleaning mechanism 120; in addition, the above-mentioned structure can also effectively improve the structural compactness of the lifting assembly 122, thereby further reducing the volume of the cleaning mechanism 120, so that the volume of the cleaning robot 100 is also reduced accordingly, which can further improve the practicality of the cleaning robot 100.

[0052] In this embodiment, please combine Figure 6 and Figure 8 As shown, the displacement member 1223 includes a rotating portion 12231 and a swinging portion 12232, the swinging portion 12232 is rotatably mounted on the inner wall of the sleeve 1222 through the rotating portion 12231, one end of the swinging portion 12232 is engaged with one end of the spiral flange 12222 close to the limiting flange 12221, and the other end of the swinging portion 12232 is used to abut against the limiting flange 12221. Specifically, an axial hole is provided on the wall of the sleeve 1222, the rotating portion 12231 is rotatably arranged in the axial hole, and a buckle portion 12233 is provided at one end of the rotating portion 12231 away from the swinging portion 12232, and the buckle portion 12233 is clamped on the end of the axial hole away from the swinging portion 12232, thereby effectively realizing that the displacement member 1223 is rotatably mounted on the inner wall of the sleeve 1222.

[0053] In some specific examples of this embodiment, please refer to Figure 8As shown, the rotating part 12231 is connected to one end of the swinging part 12232 close to the spiral flange 12222. In other words, the rotating part 12231 is connected to the side of the center of gravity of the swinging part 12232 close to the spiral flange 12222. When the abutting part 12211 of the lifting rotating shaft 1221 is separated from the swinging part 12232 of the displacement member 1223, the end of the swinging part 12232 far from the spiral flange 12222 can rotate around the axis of the rotating part 12231 under the action of the gravity of the swinging part 12232 until it abuts against the limiting flange 12221, so as to ensure that the abutting part 12211 of the lifting rotating shaft 1221 can effectively reach the spiral flange 12222 through the swinging part 12232 of the displacement member 1223 when the mop needs to be lifted, which can effectively improve the working reliability of the cleaning mechanism 120.

[0054] In this embodiment, please refer to Figure 6 As shown, a limiting part 12223 is provided at one end of the spiral flange 12222 far from the limiting flange 12221. The limiting part 12223 is used to limit the upper limit position of the lifting of the lifting rotating shaft 1221. In other words, when the abutting part 12211 of the lifting rotating shaft 1221 moves along the spiral flange 12222 to a position where it abuts against the limiting part 12223, the driver 121 cannot continue to drive the lifting rotating shaft 1221 to rotate. At this time, the lifting rotating shaft 1221 reaches the upper limit position of lifting and cannot move further, so as to avoid the abutting part 12211 from detaching from the spiral flange 12222, thereby improving the working reliability of the cleaning mechanism 120.

[0055] In this embodiment, please refer to Figure 3 、 Figure 5 and Figure 6 As shown, a connecting part 12224 is provided on the outer wall of the sleeve 1222. The sleeve 1222 is fixedly connected to the driver 121 through the connecting part 12224. Specifically, to improve the connection stability between the sleeve 1222 and the driver 121, at least two connecting parts 12224 are provided on the outer wall of the sleeve 1222.

[0056] In some specific examples of this embodiment, the connecting part 12224 is connected to the driver 121 by a fastening connection method. Specifically, a connecting hole is provided on the connecting part 12224, and the fastener passes through the connecting hole of the connecting part 12224 and then is connected to the driver 121 to connect the connecting part 12224 to the driver 121.

[0057] It should be noted that there are various connection methods between the connecting part 12224 and the driver 121. In addition to the fastening connection method, it can also be a welding method, a snap connection method, etc., which are not specifically limited here.

[0058] In this embodiment, the cleaning component bracket 123 is a mop bracket. In other words, the cleaning component bracket 123 is used to install a mop. Of course, the cleaning component bracket 123 can also be other brackets, such as a brush bracket.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cleaning mechanism, characterized in that, the cleaning mechanism includes: a driver having an output rotating shaft; a lifting assembly including a lifting rotating shaft with one end connected to the output rotating shaft and capable of reciprocating along the axis of the output rotating shaft, a sleeve fixedly arranged relative to the driver and sleeved on the lifting rotating shaft, and a displacement member rotatably mounted on the inner wall of the sleeve; a limiting flange and a spiral flange are provided on the inner wall of the sleeve, and the limiting flange and the spiral flange are arranged in sequence along the axis of the lifting rotating shaft towards the direction close to the driver; a abutting portion located inside the sleeve is provided on the outer wall of the lifting rotating shaft, and the abutting portion is used for abutting against the limiting flange or the spiral flange; one end of the displacement member is engaged with one end of the spiral flange close to the limiting flange, and the other end of the displacement member is used for abutting against the limiting flange; a cleaning component bracket for mounting a mop and connected to the end of the lifting rotating shaft far from the driver; a limiting portion is provided at one end of the spiral flange far from the limiting flange, and the limiting portion is used for limiting the upper limit position of the lifting of the lifting rotating shaft; a connecting portion is provided on the outer wall of the sleeve, and the sleeve is fixedly connected to the driver through the connecting portion.

2. The cleaning mechanism according to claim 1, characterized in that: the lifting assembly includes at least two of the displacement members, at least two of the spiral flanges are provided on the inner wall of the sleeve, at least two of the abutting portions are provided on the lifting rotating shaft, the spiral flanges are arranged in parallel with each other, and the displacement members and the spiral flanges are arranged in one-to-one correspondence.

3. The cleaning mechanism according to claim 1, characterized in that: the lifting assembly further includes an elastic member, one end of the elastic member abuts against the output rotating shaft and the other end abuts against the lifting rotating shaft.

4. The cleaning mechanism according to claim 3, characterized in that: the lifting rotating shaft is provided with a shaft connecting cavity having an opening, the output rotating shaft is connected to the shaft connecting cavity through the opening, and the elastic member is accommodated in the shaft connecting cavity.

5. The cleaning mechanism according to claim 1, characterized in that: the displacement member includes a rotating portion and a swinging portion, the swinging portion is rotatably mounted on the inner wall of the sleeve through the rotating portion, one end of the swinging portion is engaged with one end of the spiral flange close to the limiting flange, and the other end of the swinging portion is used for abutting against the limiting flange.

6. The cleaning mechanism according to claim 5, characterized in that: the rotating portion is connected to one end of the swinging portion close to the spiral flange.

7. The cleaning mechanism according to any one of claims 1-6, characterized in that: the cleaning component bracket is a mop bracket.

8. A cleaning robot, characterized in that: the cleaning robot includes a body and the cleaning mechanism according to any one of claims 1-7, and the cleaning mechanism is mounted on the body.

9. The cleaning robot according to claim 8, characterized in that: the cleaning robot includes at least two of the cleaning mechanisms.

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