Cleaning device

Abstract

The utility model relates to the technical field of cleaning, and discloses a cleaning device which comprises a cleaning rod. The cleaning part is rotationally arranged on the cleaning rod and can move in the axial direction of the cleaning rod; the limiting structure is arranged on the cleaning rod so as to limit rotation of the cleaning part relative to the cleaning rod; the cleaning part comprises a limiting position and a moving position on the cleaning rod, and when the cleaning part moves to the limiting position on the cleaning rod, the limiting structure limits rotation of the cleaning part relative to the cleaning rod; and when the cleaning part moves to a movable position on the cleaning rod, the limiting structure relieves the limiting of the rotation of the cleaning part relative to the cleaning rod. Through the arrangement of the limiting structure, when the cleaning part moves in the axial direction of the cleaning rod, the cleaning part can be switched between a rotating state and a non-rotating state relative to the cleaning rod, so that different cleaning operation requirements are better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cleaning field, concretely relates to a cleaning device. BACKGROUND

[0002] In daily life, mop, broom, squeegee and the like are indispensable cleaning devices. The cleaning tools on the market at present, such as cloth mop, generally need the user to operate the control mechanism on the mop rod to open or close the clamping jaw to release or clamp the wiping article, and generally need to keep the specific state of the cleaning part and the mop rod when clamping or wiping, for example, keeping the relative fixation of the cleaning part and the mop rod when clamping to facilitate the even clamping of the wiping article, and keeping the relative rotation of the cleaning head and the mop rod when wiping to facilitate the cleaning operation, however, the cloth mop in the prior design does not provide a good solution to this demand; for example, the cleaning tool provided with multiple cleaning parts such as a scraping strip and a wiping plate needs to switch the different cleaning parts to adapt to different cleaning demands, for example, when the scraping strip needs to work, the relative fixation of the scraping strip and the operating rod needs to be kept to facilitate the force application, and when the wiping plate needs to work, the relative rotation of the wiping plate and the operating rod needs to be kept, and the prior design also does not provide a good design scheme for this demand.

[0003] Therefore, it is urgent to provide a cleaning device which can switch the cleaning part between the relative rotation and non-rotation with the cleaning rod to better adapt to different cleaning operation demands. SUMMARY

[0004] Therefore, the present application provides a cleaning device, which comprises:

[0005] a cleaning rod;

[0006] a cleaning part rotatably arranged on the cleaning rod and movable along the axial direction of the cleaning rod;

[0007] a limiting structure arranged on the cleaning rod to limit the rotation of the cleaning part relative to the cleaning rod;

[0008] the cleaning part comprises a limiting position and a movable position on the cleaning rod, when the cleaning part moves to the limiting position on the cleaning rod, the limiting structure limits the rotation of the cleaning part relative to the cleaning rod; when the cleaning part moves to the movable position on the cleaning rod, the limiting structure releases the limitation of the rotation of the cleaning part relative to the cleaning rod.

[0009] In some embodiments, the limiting structure comprises two oppositely arranged limiting parts, when the cleaning part moves to the limiting position on the cleaning rod, the two limiting parts limit the rotation of the cleaning part relative to the cleaning rod respectively.

[0010] In some embodiments, at least one of the limiting portions is shaped as a protrusion on the cleaning portion opposite to the side surface of the cleaning portion relative to the rotating direction of the cleaning rod to limit the rotation of the cleaning portion relative to the cleaning rod.

[0011] In some embodiments, the cleaning portion is provided with a limiting protrusion, and at least one of the limiting portions is shaped as a protrusion on the cleaning portion opposite to the side surface of the limiting protrusion relative to the rotating direction of the cleaning rod to limit the rotation of the cleaning portion relative to the cleaning rod.

[0012] In some embodiments, the cleaning portion comprises two movable members having a relatively far-apart state and a relatively close state, wherein the two movable members are in the relatively far-apart state when the cleaning portion moves to the limiting position on the cleaning rod, and the two movable members are in the relatively close state when the cleaning portion moves to the active position on the cleaning rod to grasp the wiping material.

[0013] In some embodiments, the cleaning rod is provided with two folding heads on both sides of the two movable members, and when the cleaning portion moves from the limiting position to the active position on the cleaning rod, the two movable members enter between the two folding heads to make the two movable members relatively close.

[0014] In some embodiments, the limiting structure comprises a housing surrounding the cleaning portion in the circumferential direction when the cleaning portion moves to the active position on the cleaning rod, and the two folding heads are respectively shaped as two wall surfaces on the limiting structure on both sides of the two movable members.

[0015] In some embodiments, the limiting structure comprises two oppositely arranged limiting portions, and the limiting portions are respectively shaped as two wall surfaces on the limiting structure adjacent to the two folding heads.

[0016] The cleaning portion is provided with a limiting protrusion, and the inner side of the wall surface on the limiting structure adjacent to the two folding heads is provided with a guide groove, and when the cleaning portion moves to the active position on the cleaning rod, the limiting protrusion is located in the guide groove, and the limiting portion is shaped as a groove wall of the guide groove.

[0017] In some embodiments, the cleaning portion is further provided with a tension member, and when the cleaning portion moves from the active position to the limiting position on the cleaning rod, the tension member drives the two movable members to switch from the relatively close state to the relatively far-apart state.

[0018] In some embodiments, a driving portion is further included, which is movable along the axial direction of the cleaning rod and rotationally connected to the cleaning portion at the lower end.

[0019] In some embodiments, the limiting structure is rotationally connected to the cleaning rod, when the cleaning part moves to the limiting position on the cleaning rod, the rotation axis of the rotational connection between the driving part and the cleaning part and the rotation axis of the rotational connection between the limiting structure and the cleaning rod are misaligned, so that the limiting structure limits the rotation of the cleaning part relative to the cleaning rod; when the cleaning part moves to the active position on the cleaning rod, the rotation axis of the rotational connection between the driving part and the cleaning part and the rotation axis of the rotational connection between the limiting structure and the cleaning rod are collinear, so that the limiting structure releases the limitation of the rotation of the cleaning part relative to the cleaning rod.

[0020] In some embodiments, the driving part comprises a sleeve sleeved on the cleaning rod and two axial extension parts connected to the lower end of the sleeve, the cleaning part is rotationally connected to the two axial extension parts, the lower end of the cleaning rod is shaped as two U-shaped axial extension segments, the limiting structure is rotationally connected to the axial extension segments, and the two axial extension parts are located between the two axial extension segments when the driving part moves along the axial direction of the cleaning rod.

[0021] In some embodiments, a locking structure is arranged between the driving part and the cleaning rod to keep the cleaning part in the active position.

[0022] In some embodiments, the locking structure comprises a locking hole arranged on the sleeve and a pressing part arranged on the cleaning rod, and the cleaning part is kept in the active position when the pressing part enters the locking hole.

[0023] In some embodiments, a rotation-stopping structure is arranged between the driving part and the cleaning rod to limit the rotation of the driving part relative to the cleaning rod.

[0024] In some embodiments, the driving part comprises a sleeve sleeved on the cleaning rod, and the rotation-stopping structure comprises a fixing sleeve with a polygonal cross section arranged on the cleaning rod and an inner cavity with a shape corresponding to the cross section of the fixing sleeve arranged on the sleeve, and the sleeve is sleeved on the fixing sleeve.

[0025] The cleaning device in the present application, on the one hand, limits the state of the cleaning part moving on the cleaning rod to two states of relative rotation and non-rotation of the cleaning part relative to the cleaning rod by the arrangement of the limiting structure, so as to adapt to different operation requirements, for example, in the cloth-clamping mop, when the cloth-clamping operation is needed, the limiting structure limits the rotation of the cleaning part relative to the cleaning rod to ensure the stability of the cloth-clamping operation, and after the cloth-clamping operation is completed, the cleaning part and the cleaning rod can be relatively rotated to facilitate the cleaning operation; on the other hand, the folding head of the cloth-clamping mop and the limiting structure are integrated to better adapt to the characteristics of the cloth-clamping mop. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0027] Figure 1 The structural schematic view of the cleaning device of the present application embodiment is shown in the figure.

[0028] Figure 2 The exploded view of the cleaning head of the present application embodiment is shown in the figure.

[0029] Figure 3 The exploded view of the clamping structure of the present application embodiment is shown in the figure.

[0030] Figure 4 The structural schematic view of the cleaning device of the present application embodiment is shown in the figure.

[0031] Figure 5 The connection structure schematic view of the driving part and the clamping structure of the present application embodiment is shown in the figure.

[0032] Figure 6 The connection structure schematic view of the driving part and the clamping structure of the present application embodiment is shown in the figure.

[0033] Figure 7 The connection structure schematic view of the cleaning rod and the shell of the present application embodiment is shown in the figure.

[0034] Figure 8 The connection structure schematic view of the fixing sleeve and the sleeve of the present application embodiment is shown in the figure.

[0035] Figure 9 The exploded view of the fixing sleeve and the sleeve of the present application embodiment is shown in the figure.

[0036] Figure 10 The structural schematic view of the limiting structure of the present application embodiment is shown in the figure.

[0037] Reference signs:

[0038] 1, cleaning rod; 11, rod body; 12, fixing sleeve; 121, axial extension section;

[0039] 2, cleaning head; 21, cleaning part; 211, movable piece; 2111, flexible piece; 2112, rigid mounting part; 212, fixed piece; 2121, mounting piece; 22, limiting structure; 221, limiting part; 222, folding head;

[0040] 3, drive part; 31, sleeve; 311, axial extension; 312, through hole; 32, hook; 33, locking hole;

[0041] 4, locking structure. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0046] The drawings will be described below Figures 1-10 The present application will be described with reference to specific embodiments:

[0047] The utility model discloses a kind of cleaning devices, including cleaning head 2 and cleaning rod 1, cleaning head 2 includes cleaning part 21;Cleaning part 21 is used to clean the surface to be cleaned;The surface to be cleaned can include ground, wall surface, glass surface, desktop etc.

[0048] Some embodiments are also disclosed in the application, cleaning head 2 further includes limiting structure 22, limiting structure 22 is arranged on cleaning rod 1.Limiting structure 22 can be fixedly arranged on cleaning rod 1;Limiting structure 22 can also be movably connected with cleaning rod 1, can be relatively movable with cleaning rod 1, for example, rotation etc.

[0049] Some embodiments are also disclosed in the application, cleaning part 21 has first position and second position on cleaning rod 1, when cleaning part 21 moves to first position on cleaning rod 1, limiting structure 22 can limit the rotation of cleaning part 21 relative to cleaning rod 1;When cleaning part 21 moves to second position on cleaning rod 1, limiting structure 22 removes the rotation limit of cleaning part 21 relative to cleaning rod 1.When cleaning part 21 moves to first position relative to cleaning rod 1, limiting structure 22 limits its rotation relative to cleaning rod 1, can ensure that cleaning part 21 works stably under certain conditions, can effectively resist external interference, make cleaning head 2 maintain stable state, will not easily rotate due to accidental stress, affect the accuracy of situation and cleaning effect, and the stable state of cleaning head 2 and cleaning rod 1 can facilitate user to better operate cleaning rod 1, and the external force applied is conducted to cleaning head 2, for example, when the scraper is arranged on cleaning head 2 and is used to scrape dirty that is difficult to clean, user can generally stably conduct force to the blade of scraper on cleaning head 2.But when cleaning part 21 moves to second position, limiting structure 22 removes the rotation limit of cleaning part 21 relative to cleaning rod 1, at this time, cleaning head 2 can rotate freely according to the shape of cleaning object, greatly enhance the flexibility of cleaning device.And the relative movement of cleaning part 21 and cleaning rod 1 realizes fixed cleaning part 21 and rotating cleaning head 2, and this mode is simple in operation, high in visual degree, and convenient for user to use.In the embodiment, cleaning part 21 can be cleaning head 2 or its collection, such as cloth head, scraping head with scraper, brush head etc.

[0050] The application further discloses some embodiments, when the cleaning part 21 is in the second position, the limiting structure 22 can rotate synchronously with the cleaning part 21 relative to the cleaning rod 1, so that the cleaning head 2 can rotate relative to the cleaning rod 1, and specific cleaning operation can be better performed; when the cleaning part 21 is in the first position, the limiting structure 22 and the cleaning part 21 limit the rotation of each other relative to the cleaning rod 1, so that the cleaning head 2 and the cleaning rod 1 remain relatively static in the rotation direction.

[0051] Further, when the cleaning part 21 is in the second position, the rotation center of the cleaning part 21 and the limiting structure 22 is coaxial, synchronous rotation of the two can be realized, and clamping, collision or friction between the two can be prevented, and the use stability and service life of the product can be affected.

[0052] In some embodiments, the limiting structure 22 comprises two oppositely arranged limiting parts 221, when the cleaning part 21 moves to the first position on the cleaning rod 1, the two limiting parts 221 limit the rotation of the cleaning part 21 relative to the cleaning rod 1 respectively; two oppositely arranged limiting parts 221 can be used to simultaneously limit the rotation of the cleaning part 21 relative to the cleaning rod 1 in the clockwise and counterclockwise directions, and the relative rotation between the cleaning part 21 and the cleaning rod 1 can be effectively prevented.

[0053] Further, the limiting part 221 can comprise two opposite hooks, the two opposite hooks are arranged on the opposite sides of the cleaning rod 1, the two hooks can be clamped with the edge of the cleaning part 21 to limit the rotation of the cleaning part 21 relative to the cleaning rod 1, when the cleaning part 21 moves relative to the cleaning rod 1, the hooks can be deformed and disengaged from the limiting of the hooks, so that the rotation of the cleaning part 21 relative to the cleaning rod 1 can be limited.

[0054] Further, at least one of the two opposite limiting parts 221 can be a plane, the plane is shaped as a plane opposite to the side surface of the cleaning part 21 in the rotation direction of the cleaning part 21 relative to the cleaning rod 1, to limit the rotation of the cleaning part 21 relative to the rod body 11. For example, one of the two limiting parts 221 is a plane opposite to the side surface of the cleaning part 21, and the other is a hook or other form of limiting structure 22 capable of clamping the cleaning part 21. Alternatively, the two limiting parts 221 are both planes, and the two planes are shaped as planes opposite to the side surfaces of the cleaning part 21 on the opposite sides in the rotation direction of the cleaning part 21 relative to the cleaning rod 1. Two planes are used to limit the rotation of the cleaning part 21, the limiting effect is good, and the service life is long.

[0055] In some embodiments, the cleaning part 21 is provided with a limiting protrusion, and at least one limiting part 221 is shaped as a protruding part located on the cleaning part 21 opposite to the side of the limiting protrusion in the rotating direction of the cleaning rod 1, so as to limit the rotation of the cleaning part 21 relative to the cleaning rod 1. The limiting protrusion and the protruding part are matched with each other to realize the rotation limiting, which is simple to manufacture, low in cost, and good in limiting effect.

[0056] Further, the protruding part can be a baffle matched with the limiting protrusion to limit the rotation of the cleaning part 21 relative to the cleaning rod 1. The baffle can be provided as a strip-shaped baffle, which further improves the reliability of the product and simultaneously produces a guiding effect on the movement of the cleaning part 21 in the axial direction of the cleaning rod 1.

[0057] The application also discloses some embodiments, in which the cleaning part 21 comprises a clamping structure; the clamping structure has a clamping state and an open state, that is, the clamping structure has two parts that can approach or move away from each other; when the clamping structure switches from the open state to the clamping state, the clamping structure can gradually clamp the wiping member; and when the clamping structure switches from the clamping state to the open state, the clamping structure can gradually release the wiping member. The clamping structure is used to act on the cleaning part 21, which facilitates the replacement of the wiping member, is more convenient to use, and is more flexible in application scenarios.

[0058] The application also discloses some embodiments, in which the limiting structure 22 can limit the clamping structure, so that the clamping structure is switched from the open state to the clamping state and remains in the clamping state; the relative movement of the clamping structure and the limiting structure 22 can enable the clamping structure to be limited by the limiting structure 22 or to be released from the limiting of the limiting structure 22, so as to switch the clamping structure between the clamping state and the open state. The limiting structure 22 limits the clamping structure to be in the clamping state, which provides a reliable fixing mode for the wiping member; and the relative movement between the clamping structure and the limiting structure 22 can realize the limiting and the release from the limiting, so as to switch the clamping state and the open state, which greatly facilitates the replacement operation of the wiping member.

[0059] Further, the clamping structure comprises two clamping members that can approach or move away from each other, so that the clamping structure is switchable between the clamping state and the open state. When the clamping structure is in the clamping state, the clamping structure can not clamp the wiping member, and the clamping structure has a wiping effect.

[0060] In some embodiments, when the cleaning part 21 moves to the first position on the cleaning rod 1, the two clamping pieces are away from each other, and the clamping structure is switched to the open state; when the cleaning part 21 moves to the second position on the cleaning rod 1, the two clamping pieces are close to each other, and the clamping structure is switched to the clamping state to be able to clamp the wiping piece. The cleaning part 21 is relatively stationary with the cleaning rod 1 when the clamping structure is grabbing the wiping piece, which facilitates the grabbing of the wiping piece. After the grabbing is completed, the cleaning part 21 can rotate relative to the cleaning rod 1, which can be applied to different wiping scenarios, is more flexible to use, and has more application scenarios.

[0061] In some embodiments, the limiting structure 22 includes two folding heads 222 located on both sides of the two clamping pieces; the two folding heads 222 are used to clamp and limit the clamping structure, so that the clamping structure can be switched from the open state to the clamping state and remain in the clamping state. When the cleaning part 21 moves to the first position on the rod body 11, the two clamping pieces are away from each other, so that the clamping structure is in the open state; when the cleaning part 21 moves to the second position on the rod body 11, the two clamping pieces enter between the two folding heads 222, so that the two clamping pieces are close to each other, and the clamping structure is in the clamping state. The two clamping pieces are close to each other between the two folding heads 222, which is more stable and can prevent the clamping pieces from being opened due to misoperation.

[0062] In some embodiments, the limiting structure 22 includes a limiting shell extending circumferentially around the cleaning part 21 when the cleaning part 21 moves to the second position on the cleaning rod 1, and the two folding heads 222 are respectively inner wall surfaces of the limiting structure 22 located on both sides of the two clamping pieces. The two folding heads 222 are formed by the inner wall of the limiting shell, which utilizes the existing structure in the limiting shell, so that the structure is simple, easy to manufacture, and convenient to install.

[0063] In some embodiments, the limiting structure 22 includes two opposite limiting parts 221, and the limiting part 221 is two wall surfaces of the limiting shell adjacent to the two folding heads 222, respectively. The limiting structure 22 can limit the rotation of the cleaning part 21 relative to the cleaning rod 1 when the cleaning part 21 is in the first position, and can clamp and limit the clamping structure when the cleaning part 21 is in the second position. The structure is simple, low in cost, and has good limiting effect, which effectively ensures the use stability of the product. The wall surfaces of the limiting shell are used for clamping and limiting, which can effectively prevent the clamping and limiting from being invalid due to accidental touch, so that the clamping structure is opened, and can adapt to the case that the size of the clamping structure in the width direction of the cleaning part 21 is large, so as to improve the stability of the limiting of the clamping structure.

[0064] The application further discloses some embodiments, wherein the cleaning part 21 is provided with a limiting protrusion, and the inner wall of the limiting shell is provided with a guide groove; when the cleaning part 21 moves to the second position on the cleaning rod 1, the limiting protrusion is located in the guide groove, and the side wall of the guide groove forms the limiting part 221. The concave-convex cooperation is simple in structure, convenient to manufacture, and has the effects of limiting and guiding at the same time.

[0065] In some embodiments, the guide groove extends in the axial direction of the cleaning rod 1, and can guide the cleaning part 21 to move in the axial direction of the cleaning rod.

[0066] The application further discloses some embodiments, wherein the cleaning part 21 is further provided with a tension member; when the cleaning part 21 moves from the first position to the second position on the rod body 11, the tension member can drive the two clamping members to move away from each other, so that the clamping members can be opened to facilitate the clamping of the wiping member.

[0067] Further, the tension member comprises an elastic member. The elastic member can be an elastic block, a rubber block or the like.

[0068] The application further discloses some embodiments, wherein the cleaning rod 1 is provided with a movable driving part 3; the driving part 3 can move in the axial direction of the cleaning rod 1; and the driving part 3 is connected with the cleaning part 21. In the application, the axial direction of the cleaning rod 1 refers to the length direction of the cleaning rod 1; however, the movement of the driving part 3 on the cleaning rod 1 can be linear or curved, as long as the terminal point and the starting point are located at different positions in the axial direction of the cleaning rod 1.

[0069] In some embodiments, the driving part 3 is rotationally connected with the cleaning part 21; further, the lower end of the driving part 3 is rotationally connected with the cleaning part 21. Further, the driving part 3 is rotationally connected with the cleaning part 21 through a first rotation structure.

[0070] In some embodiments, the limiting structure 22 is rotationally connected with the cleaning rod 1, and further, the limiting structure 22 is connected with the cleaning rod 1; when the cleaning part 21 moves to the first position on the cleaning rod 1, the rotation centers of the first rotation structure and the second rotation structure are arranged in a staggered manner, so that the clamping structure and the limiting structure 22 can limit the rotation of each other relative to the cleaning rod 1; when the cleaning part 21 moves to the second position on the cleaning rod 1, the rotation centers of the first rotation structure and the second rotation structure are arranged in a coaxial manner, so that the limiting structure 22 and the clamping structure can synchronously rotate relative to the cleaning rod 1.

[0071] In some embodiments, the clamping structure is provided with a first rotation structure, and the clamping structure is rotationally connected with the driving part 3 through the first rotation structure, so that the clamping structure can rotate relative to the driving part 3.

[0072] In some embodiments, the first rotating structure comprises a rotating shaft, the driving part 3 is provided with a shaft hole, and the rotating shaft is rotatably arranged in the shaft hole, so that the clamping structure is rotatably arranged on the driving part 3.

[0073] In some embodiments, the first rotating structure comprises a hanging rod, the driving part 3 is provided with a hook 32, and the hanging rod is rotatably hung on the hook 32, so that the clamping structure is rotatably arranged on the driving part 3.

[0074] In some embodiments, the cleaning rod 1 comprises a rod body 11 and a fixing sleeve 12, the fixing sleeve 12 is sleeved on one end of the rod body 11, and the driving part 3 is movably arranged on the fixing sleeve 12.

[0075] In some embodiments, the driving part 3 can be a driving block, an axially extending guide groove is arranged on the cleaning rod 1, the driving block is movably arranged in the guide groove, a through hole 312 is arranged at the bottom of the guide groove, a connecting rod is arranged in the rod body 11, one end of the connecting rod is connected with the driving block, and the other end of the connecting rod is connected with the cleaning part 21; the structure is simple, and the driving effect is good.

[0076] In some embodiments, the driving part 3 comprises a sleeve 31, the sleeve 31 is movably sleeved on the cleaning rod 1, and the sleeve 31 is connected with the cleaning part 21.

[0077] In some embodiments, the driving part 3 and the cleaning rod 1 have a rotation stopping structure to limit the rotation of the driving part 3 relative to the cleaning rod 1. During the cleaning process, the user usually needs to push or pull the driving part 3 in a specific direction to control the related functions of the cleaning device, such as clamping or loosening the wiping member, etc. The rotation stopping structure limits the rotation of the driving part 3 relative to the cleaning rod 1, so that the movement of the driving part 3 is constrained in the axial direction, and the user can more accurately control the direction of the operation, avoiding operation errors caused by accidental rotation of the driving part 3, or extrusion between the limiting part 221 and the cleaning part 21 due to the rotation of the driving part 3, which may cause product damage or poor use.

[0078] In some embodiments, one end of the rod body 11 has a fixing sleeve 12 with a polygonal cross section, such as a triangular, square, trapezoidal, etc.; the driving part 3 is a sleeve 31, the sleeve 31 is movably sleeved outside the fixing sleeve 12, the inner wall of the sleeve 31 is matched with the shape of the fixing sleeve 12, and the two form a rotation stopping structure to prevent the rotation of the driving part 3 relative to the cleaning rod 1. By designing the fixing sleeve 12 with a polygonal cross section and matching the shape of the inner wall of the sleeve 31, the closely matched structure forms an extremely effective rotation stopping structure to prevent relative rotation between the sleeve 31 and the fixing sleeve 12, without the need for additional devices or structural members for rotation stopping, thereby reducing the product cost.

[0079] In some embodiments, the limiting structure 22 is rotationally connected with the fixing sleeve 12 through a second rotation structure, so that the limiting structure 22 and the cleaning rod 1 can rotate relative to each other.

[0080] In some embodiments, the fixing sleeve 12 is provided with an axial extension segment 121, and the limiting structure 22 is arranged on the axial extension segment 121; when the driving part 3 comprises a sleeve 31, the sleeve 31 is sleeved outside the fixing sleeve 12; one end of the sleeve 31 is a closed end, and the closed end is provided with a through hole 312 for the axial extension segment 121 to pass through, and the axial extension segment 121 is movably arranged in the through hole 312; when the sleeve 31 moves on the fixing sleeve 12, the axial extension segment 121 moves relative to the through hole 312. The fixing sleeve 12 is provided with the axial extension segment 121, and the axial extension segment 121 is movably arranged in the through hole 312 of the closed end of the sleeve 31, which provides accurate guidance for the movement of the sleeve 31 on the fixing sleeve 12. When the user operates the sleeve 31 to move axially along the fixing sleeve 12, the axial extension segment 121 slides in the through hole 312, so that the movement track of the sleeve 31 is strictly limited in the axial direction, avoiding the sleeve 31 from deviating or shaking, thereby ensuring the accuracy and stability of the operation. At this time, the limiting structure 22 is connected with the axial extension segment 121 through a second rotation structure, and the second rotation structure comprises a first shaft and a second shaft arranged on the limiting structure.

[0081] In some embodiments, the axial extension segment 121 comprises a first axial extension plate and a second axial extension plate, which form an inverted U-shaped structure with the lower end of the rod body 11 when viewed from the side; the closed end is provided with a first through hole and a second through hole corresponding to the first axial extension plate and the second axial extension plate; the first axial extension plate and the second axial extension plate are respectively provided with a first hole and a second hole; the limiting structure 22 is provided with a first shaft and a second shaft, which are rotatably arranged in the first hole and the second hole, respectively, so that the limiting structure 22 is rotatably arranged on the axial extension segment 121. The first shaft and the second shaft cooperate with the corresponding holes to not only realize the rotation function, but also to a certain extent, position and limit the rotation of the limiting structure 22. Moreover, the arrangement of the first shaft and the second shaft forms a double-shaft support structure, which can effectively disperse the stress during the rotation of the limiting structure 22 and the cleaning head 2 is subjected to external force (such as friction force during wiping, reaction force generated when the cleaning head 2 contacts the cleaning surface, etc.). Compared with a single-shaft rotation structure, the double-shaft structure can more evenly distribute the force on the limiting structure 22, the axial extension segment 121 and other components connected thereto, avoiding the situation that stress is concentrated in a certain place and causing damage to the components.

[0082] Further, the closed end is further provided with an axial extension 311 connected with the clamping structure; the axial extension 311 is arranged between the first axial extension plate and the second axial extension plate.

[0083] The application further discloses some embodiments, wherein the cleaning rod 1 is further provided with a locking structure 4; the locking structure 4 is used for locking or unlocking the driving part 3. The driving part 3 can be prevented from being touched by mistake by locking or unlocking the driving part 3 through the locking structure 4, and the stable operation of the driving part 3 is effectively ensured.

[0084] The application further discloses some embodiments, wherein the locking structure 4 comprises a pressing piece; the pressing piece is arranged on the cleaning rod 1 in a pressable manner; the driving part 3 is provided with a locking hole 33; the pressing piece can extend into the locking hole 33 to lock the driving part 3; the pressing piece is pressed to make the pressing piece separate from the locking hole 33 to unlock the driving part 3. The pressing piece is used as the locking structure 4, and the operation is simple and convenient, the locking effect is good, and the unlocking is convenient.

[0085] In some embodiments, the pressing piece comprises a spring buckle; the spring buckle is arranged on the cleaning rod 1 and can be elastically pressed on the cleaning rod 1.

[0086] In some embodiments, the pressing piece comprises a pressing hole formed on the cleaning rod 1; the pressing piece moves in the pressing hole to extend out of or retract into the cleaning rod 1; when the pressing piece extends out of the cleaning rod 1, the pressing piece can extend into the locking hole 33 to lock the driving part 3; the pressing piece is pressed to make the pressing piece separate from the locking hole 33 and retract into the cleaning rod 1 to unlock the driving part 3.

[0087] The application further discloses some embodiments, wherein the clamping structure comprises a movable piece 211 and a fixed piece 212; the movable piece 211 and the fixed piece 212 form the two clamping pieces which can move close to or away from each other; the movable piece 211 comprises a flexible piece 2111 used for clamping or releasing the wiping piece; the cleaning head 2 is arranged on the cleaning rod 1; the cleaning rod 1 is provided with the movable driving part 3; the driving part 3 is connected with the clamping structure; when the driving part 3 moves in the axial direction of the cleaning rod 1, one end of the movable piece 211 can move away from or close to the fixed piece 212 to make the clamping structure switch between the clamping state and the open state. The driving part 3 moves in the axial direction of the cleaning rod 1 to drive one end of the movable piece 211 to move away from or close to the fixed piece 212 to switch the state of the clamping structure, so that the operation is simple and the replacement of the wiping piece is convenient; the wiping piece can be easily disassembled and assembled; and in the application, the clamping structure comprises the movable piece 211, the movable piece 211 comprises the flexible piece 2111, and the flexible piece 2111 is used for clamping and releasing the wiping piece; when the wiping piece is assembled, the flexible piece 2111 is used for grabbing, so that the flexible piece 2111 will not cause abrasion to the grabbing surface.

[0088] Further, the flexible member 2111 can be made of rubber material, or other flexible material such as soft metal, soft plastic, etc. The wiping member can be a soft and foldable wiping member such as wiping cloth, wiping cotton, wiping gauze, etc. The fixing member 212 can be made of flexible material or rigid material. The flexible member 2111 in the movable member 211 plays a key role in clamping and releasing the wiping member; in the present application, the flexible member 2111 clamps or releases the wiping member, and places the wiping member on the surface to be cleaned, and the flexible member 2111 moves on the surface to be cleaned and the wiping member to clamp the wiping member; in this process, the flexible member 2111 can effectively clamp the wiping member without damaging the surface to be cleaned; and the flexible member 2111 itself has a certain flexibility, which can adaptively adjust the contact mode with the wiping member according to different characteristics of the wiping member such as shape, material and thickness. For example, for soft and thin wiping cloth, the flexible member 2111 can adhere to the surface thereof to increase the contact area and thus apply more uniform clamping force; and for wiping block which is slightly thicker or irregular in shape, the flexible member 2111 can also wrap the wiping member by deforming itself to ensure that the wiping member is stably clamped. At the same time, when releasing the wiping member, the flexible member 2111 can gently release the wiping member by virtue of its flexibility, avoiding scratching and tearing the wiping member, prolonging the service life of the wiping member, and reducing the cleaning cost to some extent.

[0089] In some embodiments, the driving part 3 comprises a sleeve 31 movably sleeved on the cleaning rod 1; the sleeve 31 is connected with the clamping structure; when the sleeve 31 moves in the axial direction of the cleaning rod 1, the clamping structure can be switched between the clamping state and the open state. The sleeve 31 driving part 3 has many advantages. On the one hand, compared with the complex multi-component transmission driving mode, it has a relatively simple structure, is easy to manufacture and assemble, and can effectively control the cost; on the other hand, the sleeve 31 is moved in the axial direction, which is intuitive and convenient, and the user only needs to push or pull the sleeve 31 along the cleaning rod 1 to easily complete the clamping or releasing operation of the wiping member, without complex operation procedures and skills, greatly improving the convenience and cleaning efficiency of the operation. At the same time, the sleeving connection of the sleeve 31 and the cleaning rod 1 makes the whole driving system more compact, does not occupy too much space, helps to maintain the rationality and aesthetics of the overall structure of the cleaning device, and is relatively stable and reliable, and is not prone to failure problems caused by complex transmission structure, ensuring long-term stable operation of the cleaning device.

[0090] In some embodiments, the fixing member 212 is further provided with a mounting member 2121, and the movable member 211 is rotatably arranged on the mounting member 2121; when the driving part 3 moves in the axial direction of the cleaning rod 1, the movable member 211 can rotate on the mounting member 2121, and then one end of the movable member 211 can move close to or away from the fixing member 212. By arranging the movable member 211 to rotate relative to the fixing member 212, one end of the movable member 211 can move away from or close to the fixing member 212, and this mounting method is simple, and the movement of the movable member 211 is more stable and accurate.

[0091] Further, the first rotating structure is arranged on the mounting member 2121; the mounting member 2121 comprises two mounting plates arranged oppositely, and a hanging rod or a rotating shaft is arranged between the two mounting plates, and two ends of the hanging rod or the rotating shaft are connected with the two mounting plates respectively.

[0092] The application further discloses some embodiments, the fixing member 212 comprises a fixing plate; the movable member 211 comprises a movable plate, and the movable plate is arranged on one side of the fixing plate; when the driving part 3 moves in the axial direction of the cleaning rod 1, one end of the movable plate can move away from or close to the fixing plate, so that the clamping structure can switch between the clamping state and the open state; and the surface of the fixing plate facing the movable plate is provided with clamping teeth.

[0093] The application further discloses some embodiments, the surface of the movable plate facing the fixing plate is provided with clamping teeth. By adopting the design of the clamping teeth, the clamping of the wiping member can be more compact and firm, so that the wiping member can be prevented from falling off during use; and the wiping member can be smoothly gripped during gripping, so that the wiping member can be prevented from sliding and causing failure to grip. In the application, the clamping teeth can be arranged on the fixing plate alone, or the clamping teeth can be arranged on the movable plate alone, or the clamping teeth can be arranged on both the fixing plate and the movable plate; and the clamping teeth of the two can be arranged in a staggered manner or in a relative arrangement.

[0094] Further, the clamping teeth are arranged on the flexible member, so that when the wiping member is gripped, the friction between the wiping member and the clamping teeth can be increased, and the wiping member can be effectively gripped.

[0095] Further, the clamping teeth can comprise a plurality of protrusions, and the top of each protrusion is a sharp end, which can assist the clamping structure in gripping the wiping member, and further improve the gripping and clamping of the wiping member.

[0096] In some embodiments, the movable member 211 includes a first movable member 211 and a second movable member 211; the first movable member 211 and the second movable member 211 are respectively located on the two sides of the fixed member 212 and cooperates with the two sides of the fixed member 212 to form two clamping structures; one end of the first movable member 211 and the second movable member 211 can be away from or close to the fixed member 212, so that the two clamping structures on the two sides of the fixed member 212 can be switched between the clamping state and the open state; the two clamping structures formed on the two sides of the fixed member 212 can jointly clamp the same wiping member; by using the two clamping structures formed on the two sides of the fixed member 212 to jointly clamp the same wiping member, multi-point clamping can be formed, and this multi-point clamping mode can make the wiping member receive more uniform and stable clamping force in all directions, greatly reducing the possibility of loosening, displacement or even falling of the wiping member caused by external force (such as friction force during wiping, inertial force generated by movement of the cleaning head 2, etc.) during cleaning, and ensuring that the wiping member is always firmly fixed on the cleaning head 2, thereby ensuring the continuous and efficient development of cleaning work. The two movable members 211, since the fixed member 212 is located between the two movable members 211, the two movable members 211 are close to each other during clamping, and are away from each other during opening. Both the first movable member 211 and the second movable member 211 include a flexible member 2111.

[0097] Further, in the present application, one movable member 211 can be used, which is located on one side of the fixed member 212; the movable member 211 can grab the wiping member during movement to clamp the wiping member between the movable member 211 and the fixed member 212.

[0098] In some embodiments, the two clamping structures formed on the two sides of the fixed member 212 can clamp one wiping member respectively. When the clamping structures formed on the two sides of the fixed member 212 can clamp one wiping member respectively, different types of wiping members or the same type of wiping members can be clamped, thereby realizing the flexibility of wiping.

[0099] In some embodiments, one end of the movable member 211 is provided with a scraping strip, and the scraping strip can scrape the surface to be cleaned; when there is no wiping member, the scraping strip can also clean the surface to be cleaned. The scraping head forms the flexible member 2111, and when the surface to be cleaned is scraped, the surface to be cleaned will not be damaged, and the shape of the surface to be cleaned can be adapted to improve the cleaning effect.

[0100] In some embodiments, the fixed member 212 is a rigid member, and the cooperation of the rigid member and the flexible member 2111 can effectively ensure the fastening and stability of clamping; and prevent deformation during clamping to cause the wiping member to be unable to be clamped.

[0101] In some embodiments, the limiting structure 22 is used to limit the clamping structure so that the clamping structure is in the clamping state; when the driving part 3 moves in the axial direction of the cleaning rod 1, the clamping structure can move relative to the limiting structure 22 to be limited by the limiting structure 22 or to be released from the limitation of the limiting structure 22, so that the clamping structure can be switched between the clamping state and the open state.

[0102] In some embodiments, the clamping structure is provided with a tensioning member, that is, an elastic member; when the clamping structure is limited by the limiting structure 22, the limiting structure 22 drives the clamping structure to switch to the clamping state, and at the same time drives the elastic member to store energy; when the clamping structure is released from the limitation of the limiting structure 22, the elastic member releases the energy, thereby driving the clamping structure to switch from the clamping state to the open state.

[0103] In some embodiments, the movable member 211 further includes a rigid mounting part 2112, and the flexible member 2111 is arranged on the rigid mounting part 2112; the elastic member is arranged between the rigid mounting part 2112 and the fixed member 212.

[0104] In some embodiments, the elastic member is arranged between the fixed member 212 and the movable member 211; when the clamping structure is limited by the limiting structure 22, the limiting structure 22 drives the movable member 211 to move towards the fixed member 212, and at the same time drives the elastic member to store energy; so that the clamping structure is switched to the clamping state; when the clamping structure is released from the limitation of the limiting structure 22, the elastic member releases the energy, which can drive the movable member 211 to move away from the fixed member 212, thereby switching the clamping structure from the clamping state to the open state.

[0105] In some embodiments, when the clamping structure is in the clamping state, the cleaning head 2 can rotate relative to the cleaning rod 1; when the clamping structure is in the open state, the cleaning head 2 and the cleaning rod 1 remain relatively stationary. When the clamping structure is in the clamping state, that is, the wiping member has been clamped and is ready for cleaning, the cleaning head 2 can rotate relative to the cleaning rod 1, which makes it easy for the user to adjust the angle of the cleaning head 2 according to the shape and angle of the cleaning surface during cleaning. When the clamping structure is in the open state, the cleaning head 2 and the cleaning rod 1 remain relatively stationary, which can make the clamping structure clamp the wiping member smoothly.

[0106] In some embodiments, when the clamping structure is in the clamping state, the limiting structure 22 and the clamping structure can synchronously rotate relative to the cleaning rod 1, so that the cleaning head 2 can relatively rotate relative to the cleaning rod 1; when the clamping structure is in the open state, the limiting structure 22 and the clamping structure limit each other relative to the rotation of the cleaning rod 1, so that the cleaning head 2 remains relatively stationary relative to the cleaning rod 1. The synchronous rotation of the limiting structure 22 and the clamping structure makes the product have better integrity and better stability. During the rotation of the cleaning head 2, the limiting structure 22 and the clamping structure synchronously rotate, and they jointly bear the external force generated by rotation and the external force brought by the wiping action during cleaning. In the open state, the mutual limiting keeps stationary, effectively preventing unnecessary friction, collision and other situations caused by relative rotation between components when rotation is not required.

[0107] In some embodiments, when the clamping structure is provided with a first rotating structure, the limiting structure 22 and the cleaning rod 1 are rotatably connected through a second rotating structure; when the clamping structure is in the clamping state, the rotation centers of the first rotating structure and the second rotating structure are coaxially arranged, so that the limiting structure 22 and the clamping structure can synchronously rotate relative to the cleaning rod 1; when the clamping structure is in the open state, the rotation centers of the first rotating structure and the second rotating structure are arranged in a staggered manner, so that the clamping structure and the limiting structure 22 can limit each other relative to the rotation of the cleaning rod 1.

[0108] Further, the driving part 3 can drive the clamping structure to move between the first position and the second position when the cleaning rod 1 moves; when the clamping structure moves to the first position of the cleaning rod 1, the clamping structure is in the open state, and the limiting structure 22 limits the rotation of the cleaning part 21 relative to the cleaning rod 1; when the clamping structure moves to the second position of the cleaning rod 1, the limiting structure 22 limits the clamping structure, so that the clamping structure is in the clamping state, and the limiting of the limiting structure 22 to the rotation of the cleaning part 21 relative to the cleaning rod 1 is released.

[0109] The application also discloses some embodiments of the limiting structure 22, which comprises a limiting shell.

[0110] The application also discloses some embodiments of the limiting shell, which has an opening; the clamping structure has a protruding part and a limiting part, and the protruding part always protrudes out of the opening; the inner wall of the limiting shell is used for limiting the limiting part, so that the clamping structure is in the clamping state; when the driving part 3 moves in the axial direction of the cleaning rod 1, the limiting part 221 can move in and out of the limiting shell, so that the clamping structure can be limited in the limiting shell or separated from the limiting shell.

[0111] In some embodiments, a guide rail is arranged in the limiting shell, a guide piece is arranged on the clamping structure, and the guide piece is movably arranged on the guide rail to guide the limiting part to move in and out of the limiting shell.

[0112] Further, the guide rail comprises a guide groove, and the guide piece comprises a limiting protrusion; the limiting protrusion is movably arranged in the guide groove, and a side wall of the guide groove forms a protruding part. The guide groove extends in the axial direction of the cleaning rod 1, and the extension direction of the guide groove can guide the movement of the limiting protrusion, so that the cleaning part 21 can move between the first position and the second position to guide the limiting part 221 to enter or exit the limiting shell; at the same time, the side wall of the guide groove cooperates with the limiting protrusion to limit the rotation of the clamping structure relative to the cleaning rod 1.

[0113] The application also discloses some embodiments. The clamping structure has a clamping state capable of clamping the wiping member and an open state capable of releasing the wiping member; the clamping structure has a limiting part capable of entering and exiting a limiting shell; during the process of entering the limiting shell, the inner wall of the limiting shell can limit the limiting part, so that the clamping structure switches from the open state to the clamping state, and then the clamping structure gradually clamps the wiping member; during the process of exiting the limiting shell, the limiting part gradually escapes from the limitation of the limiting shell, so that the clamping structure switches from the clamping state to the open state, and then the clamping structure gradually releases the wiping member. When the limiting part enters the limiting shell, the inner wall of the limiting shell limits the limiting part, which promotes the clamping structure to switch from the open state to the clamping state, and the wiping member is gradually clamped. This gradual clamping method has many advantages. First, it can ensure that the wiping member is uniformly stressed during clamping, avoiding the situation that the wiping member is locally deformed, damaged or clamped insecurely due to instantaneous large force clamping.

[0114] Further, the limiting part is a rigid mounting part 2112, and the extending part is a flexible member 2111. The limiting part is designed as a rigid mounting part 2112, which can provide stable and accurate limiting effect when interacting with the limiting shell. The rigid structure has stability in shape and size and is not easy to deform, and during the process of entering and exiting the limiting shell, it can accurately control the switching of the state of the clamping structure according to the inner wall of the limiting shell. The extending part adopts a flexible member 2111, which brings great flexibility to the clamping of the wiping member. The flexible member 2111 itself has a deformable characteristic and can adaptively adjust the contact mode with the wiping member according to different characteristics such as the shape, material and thickness of the wiping member.

[0115] In some embodiments, the limiting shell and the clamping structure are arranged at the same end of the cleaning rod 1; the limiting shell is movably connected with the cleaning rod 1, so that the limiting part can enter and exit the limiting shell; and the limiting shell can make the limiting part enter and exit the limiting shell when moving on the cleaning rod 1. The process of the limiting shell moving on the cleaning rod 1 can be accurately controlled.

[0116] In some embodiments, the clamping structure is movably connected with the cleaning rod 1, so that the limiting part can enter or exit the limiting shell. When the clamping structure moves on the cleaning rod 1, the limiting part can enter or exit the limiting shell.

[0117] In some embodiments, the driving part 3 is connected with the clamping structure; the driving part 3 moves on the cleaning rod 1 and can drive the clamping structure to move, so that the limiting part enters or exits the limiting shell. The relative movement between the driving part 3 and the clamping structure can ensure that the limiting part enters or exits the limiting shell smoothly.

[0118] In some embodiments, the driving part 3 is connected with the limiting shell; the driving part 3 moves on the cleaning rod 1 and can drive the limiting shell to move, so that the limiting part enters or exits the limiting shell. The relative movement between the driving part 3 and the clamping structure can ensure that the limiting part enters or exits the limiting shell smoothly.

[0119] In the present application, the specific working process is as follows:

[0120] The driving part 3 moves in the axial direction of the cleaning rod 1 and can drive the clamping structure to move in the axial direction of the cleaning rod 1, so that the limiting part on the clamping structure enters or exits the limiting shell. When the clamping structure moves to the second position, the clamping structure is clamped and limited by the two opposite inner side walls of the limiting shell, so that the clamping structure is in the clamped state. At this time, the cleaning head 2 (the clamping structure and the limiting shell) can rotate relative to the cleaning rod 1. When the clamping structure moves to the first position, the clamping structure is released from the limiting and clamping of the limiting shell, so that the clamping structure is in the open state. At the same time, the inner walls at both ends of the limiting shell limit the rotation of the clamping structure relative to the cleaning rod 1, and the clamping structure can also limit the rotation of the limiting shell relative to the cleaning rod 1. At this time, the cleaning part 21 (the clamping structure and the limiting shell) cannot rotate relative to the cleaning rod 1, and the clamping structure is open and can grasp the wiping member. The driving part 3 drives the clamping structure to move between the first position and the second position, so that the clamping structure can be switched between the open state and the clamped state, so that the wiping member can be grasped, clamped, released, grasped, and so on. The wiping member is repeatedly worked, and the clamping structure can clean the surface to be cleaned when the clamping structure is in the clamped state. At this time, the entire cleaning head 2 can rotate relative to the cleaning rod 1, and the cleaning head 2 can be rotated according to different cleaning environments. When the clamping structure is in the open state, the wiping member can be grasped, and the wiping member cannot rotate relative to the cleaning rod 1, so that the stability of the wiping member can be ensured.

[0121] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A cleaning device, characterized in that, The utility model relates to a cleaning rod, a cleaning part rotatingly arranged on the cleaning rod and being movable along the axial direction of the cleaning rod, a limiting structure arranged on the cleaning rod to limit the rotation of the cleaning part relative to the cleaning rod, the cleaning part comprising a limiting position and a movable position on the cleaning rod, when the cleaning part moves to the limiting position on the cleaning rod, the limiting structure limits the rotation of the cleaning part relative to the cleaning rod, and when the cleaning part moves to the movable position on the cleaning rod, the limiting structure releases the limitation of the rotation of the cleaning part relative to the cleaning rod. The limiting structure comprises two oppositely arranged limiting parts, when the cleaning part moves to the limiting position on the cleaning rod, the two limiting parts limit the rotation of the cleaning part relative to the cleaning rod respectively. At least one limiting part is shaped as a plane opposite to the side surface of the cleaning part in the rotation direction of the cleaning part relative to the cleaning rod to limit the rotation of the cleaning part relative to the cleaning rod. The cleaning part is provided with a limiting protrusion, and at least one limiting part is shaped as a protruding part opposite to the side surface of the limiting protrusion in the rotation direction of the cleaning part relative to the cleaning rod to limit the rotation of the cleaning part relative to the cleaning rod. The cleaning part comprises two movable pieces having a relatively far apart state and a relatively close state, when the cleaning part moves to the limiting position on the cleaning rod, the two movable pieces are in the relatively far apart state, and when the cleaning part moves to the movable position on the cleaning rod, the two movable pieces are in the relatively close state to grasp the wiping material.

2. A cleaning device according to claim 1, characterised in that The cleaning rod is provided with two folding heads on the two sides of the two movable pieces, when the cleaning part moves from the limiting position to the movable position on the cleaning rod, the two movable pieces enter between the two folding heads to make the two movable pieces relatively close.

3. A cleaning device according to claim 2, wherein, The limiting structure comprises a shell surrounding the cleaning part in the circumferential direction when the cleaning part moves to the movable position on the cleaning rod, and the two folding heads are shaped as wall surfaces on the limiting structure on the two sides of the two movable pieces respectively.

4. A cleaning device according to claim 2 or 3, characterised in that, The limiting structure comprises two oppositely arranged limiting parts, the limiting parts are shaped as two wall surfaces adjacent to the two folding heads on the limiting structure respectively; or 5. A cleaning device according to any one of claims 1-3, characterized in that The cleaning part is provided with a limiting protrusion, and the inner side of the wall surface adjacent to the two folding heads on the limiting structure is provided with a guide groove, when the cleaning part moves to the movable position on the cleaning rod, the limiting protrusion is located in the guide groove, and the limiting part is shaped as the groove wall of the guide groove.

6. A cleaning device according to claim 5, wherein The cleaning part is further provided with a tension piece, when the cleaning part moves from the movable position to the limiting position on the cleaning rod, the tension piece drives the two movable pieces to switch from the relatively close state to the relatively far apart state.

7. A cleaning device according to claim 6, wherein The utility model further comprises a driving part movable along the axial direction of the cleaning rod and rotationally connected with the cleaning part at the lower end.

8. A cleaning device according to claim 7, wherein ​ ​ 9. A cleaning device according to any one of claims 6 to 8, wherein, ​ 10. A cleaning device according to any of claims 1-3, 6-8, characterized in that ​ 11. A cleaning device according to claim 10, wherein, The limiting structure is rotationally connected to the cleaning rod, when the cleaning part moves to the limiting position on the cleaning rod, the rotation shaft of the driving part rotationally connected to the cleaning part and the rotation shaft of the limiting structure rotationally connected to the cleaning rod are misaligned, so that the limiting structure limits the rotation of the cleaning part relative to the cleaning rod; when the cleaning part moves to the active position on the cleaning rod, the rotation shaft of the driving part rotationally connected to the cleaning part and the rotation shaft of the limiting structure rotationally connected to the cleaning rod are collinear, so that the limiting structure removes the limitation of the rotation of the cleaning part relative to the cleaning rod.

12. A cleaning device according to claim 11, wherein, The driving part comprises a sleeve sleeved on the cleaning rod and two axial extension parts connected to the lower end of the sleeve, the cleaning part is rotationally connected to the two axial extension parts, the lower end of the cleaning rod is shaped as two axial extension segments, the limiting structure is rotationally connected to the axial extension segments, when the driving part moves along the axial direction of the cleaning rod, the two axial extension parts are located between the two axial extension segments.

13. A cleaning device according to claim 12, wherein, The locking structure is arranged between the driving part and the cleaning rod, so as to keep the cleaning part in the active position.

14. A cleaning device according to claim 13, wherein The locking structure comprises a locking hole arranged on the sleeve and a pressing piece arranged on the cleaning rod, when the pressing piece enters the locking hole, the cleaning part is kept in the active position.

15. A cleaning device according to any one of claims 11-14, characterised in that The rotation stopping structure is arranged between the driving part and the cleaning rod, so as to limit the rotation of the driving part relative to the cleaning rod.

16. A cleaning device according to claim 15, wherein The driving part comprises a sleeve sleeved on the cleaning rod, the rotation stopping structure comprises a fixing sleeve with a polygonal cross section arranged on the cleaning rod and an inner cavity with a shape corresponding to the cross section of the fixing sleeve arranged on the sleeve, and the sleeve is sleeved on the fixing sleeve.

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