CN219940496U - Liftable rotatory mop structure and cleaning machine - Google Patents

Abstract

The utility model provides a lifting rotary mop structure, which comprises a sealing part (56), wherein a friction piece (4) and the sealing part (56) are sequentially arranged up and down along the axial direction of a rotating shaft (2), the friction piece (4) and the sealing part (56) are in rotatable sleeve joint with the rotating shaft (2), the sealing part (56) seals the friction piece (4) on the inner side, and the friction piece (4) and the sealing part (56) are integrally arranged or separately arranged; the lifting rotary mop structure ensures that the sealing part (56) and the friction piece (4) perform the functions respectively, thereby being beneficial to improving the reliability and the stability; the lifting rotary mop structure is also provided, so that the reliability and stability of the cleaning machine are improved.

Description

Liftable rotatory mop structure and cleaning machine

The patent application number 2022216961738, entitled liftable rotary mop construction and cleaning machine, is hereby incorporated by reference in its entirety for the priority of the present disclosure.

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a lifting rotary mop structure and a cleaning machine.

Background

There is a kind of cleaner, for example the small-scale robot of sweeping floor (also referred to as the domestic robot of sweeping floor), the small-scale robot of sweeping floor has been higher from birth to now, become the important cleaning product in consumer market such as the domestic cleaning, the small-scale robot of sweeping floor has been developed to sucking and dragging the integrative direction at present, wherein, there is a kind of technical scheme that suck and drag integrative is adopted and is increased the rotatory mop structure on the basis of the dust absorption to realize, namely the small-scale robot of sweeping floor is in the walking process, while sucking dust, still drives the mop to rotate through rotatory mop structure to wipe the surface being cleaned. Therefore, the design requirement that the rotary mop structure is applied to the small-sized sweeping robot is provided, as the small-sized sweeping robot is small in size and is provided with two mops, the small-sized sweeping robot can flexibly clean the small-sized sweeping robot in a room, and the two mops enable the sweeping to be more efficient and avoid the fact that the small-sized sweeping robot is too large in size, the conventional rotary mop structure needs to be designed in a small-sized mode or is designed in a complete mode to be applied to the small-sized sweeping robot, so that a lot of difficulties are brought to design work, and creative labor is required to be paid to realize the small-sized sweeping robot.

In order to perform cleaning better, a higher requirement is further put forward, namely, the mop needs to be rotatable and liftable, so that the structural complexity is greatly increased, and miniaturization is more difficult.

The present disclosure provides a lifting rotary mop structure and a cleaning machine, which utilize structures such as a sealing element to achieve the purposes of lifting, lifting to rotating cleaning, etc., and the present disclosure aims at further improvement, where the sealing portion and the friction element each perform their own roles, so that the sealing portion mainly bears a sealing function, and the friction element mainly provides a first friction force, the sealing portion provides a certain sealing protection for the friction element, and the friction force between the sealing portion and the rotating shaft is small, so that the loss is small, and therefore, in the design service life, the sealing portion is not easy to fail, and the service life of the sealing portion is advantageously improved.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing a lifting rotary mop structure, wherein the sealing part and the friction piece perform their own roles, which is beneficial to improving the reliability and stability; the lifting rotary mop structure is also provided, so that the reliability and stability of the cleaning machine are improved.

Compared with the prior art, the utility model provides a lifting rotary mop structure, which comprises a rotating member, a rotating shaft and a mop, wherein the rotating member is in spiral transmission connection with the rotating shaft, the rotating member is fixed and rotatable relative to the axial position of the rotating shaft, the rotating shaft is provided with an upper lifting limit and a lower lifting limit, the rotating member drives the rotating shaft to lift through the spiral transmission connection between the upper lifting limit and the lower lifting limit, and when the rotating member continuously maintains the rotation in a first direction during the upper lifting limit, the rotating member and the rotating shaft are limited through a first limiting structure so as to stop the relative rotation of the rotating member and the rotating shaft, the rotating shaft can be driven by the rotating member to rotate together, the first direction means that the rotating member drives the rotating shaft to lift up, and when the rotating member continuously maintains the rotation in a second direction during the lower lifting limit, the rotation member and the rotation shaft are limited by the second limiting structure to stop the rotation of the rotation member and the rotation shaft, so that the rotation shaft can be driven by the rotation member to rotate together, the second direction is the rotation direction of the rotation member driving the rotation shaft to descend, the first direction is opposite to the second direction, the rotation shaft is connected with the mop, the rotation shaft is used for driving the mop to rotate and lift, the mop further comprises at least one friction member arranged along the circumferential direction of the rotation shaft, the friction member is in friction connection with the rotation shaft, the friction force between the friction member and the rotation shaft is recorded as a first friction force, the first friction force is used for limiting the rotation of the rotation shaft so as to enable the rotation member and the rotation shaft to rotate relatively to lift the rotation shaft, and when the rotation member is limited in lifting, if the rotation member continues to maintain the first direction, the rotation shaft is driven to overcome the first friction force so as to rotate together, when the lifting lower limit is carried out, the rotating piece can drive the rotating shaft to overcome the first friction force so as to enable the rotating shaft to rotate together if the rotating piece continues to rotate in the second direction;

the friction piece and the sealing part are sequentially arranged up and down along the axial direction of the rotating shaft, the friction piece and the sealing part are rotatably sleeved and matched with the rotating shaft, the sealing part seals the friction piece on the inner side, and the friction piece and the sealing part are integrally arranged or separately arranged.

In some embodiments, the friction member is integrally provided with the sealing portion by using a first seal ring, where the first seal ring includes an upper portion and a lower portion, respectively, a first portion and a second portion, and the first portion serves as the friction member, and the second portion serves as the sealing portion. Therefore, one part of the first sealing ring can provide a first friction force and realize two purposes of sealing, and the structure is simpler.

In some embodiments, the first portion is circumferentially sleeved with at least one collar for abutting the first portion against the outer circumferential wall of the rotating shaft. Because the first sealing ring is preferably made of a material, the processing is simple and the cost is low, but the first sealing ring is difficult to realize the two purposes of providing the first friction force and realizing the sealing by one material, for example, the first sealing ring adopts a rubber sealing ring, so that after the first part is circumferentially sleeved with at least one clamping ring and improved in such a way, the first part is reinforced, thereby being beneficial to better realizing the two purposes of providing the first friction force and realizing the sealing when one material is used.

In some embodiments, the first part is provided with at least one swinging section swinging to one side of the rotating shaft along the circumferential direction, and the clamping ring presses and clamps the jointing part of the swinging section on the peripheral wall of the rotating shaft. Thus, the first friction force can be better provided, and the service life is prolonged.

In some embodiments, the device further comprises a stand, wherein a matched bottom plate is arranged on the lower side of the bottom of the stand, and the first sealing ring is matched between the bottom and the bottom plate; the mop is arranged on the lower side of the bottom plate, the machine base and the bottom plate are provided with through holes for lifting the rotating shaft, and the lower end of the rotating shaft is exposed out of the through holes. In this way, the first sealing ring is protected between the bottom and the bottom plate, and the installation of the first sealing ring is conveniently realized.

In some embodiments, a circumferential limit structure is provided between the bottom and the first portion for circumferentially limiting the first portion. The first part is driven by the rotating shaft to rotate together after the service time is long, so that the first part is beneficial to enhancing the circumferential limit of the first part, and the failure is caused, and therefore, the improvement is beneficial to improving the reliability and the stability.

In some embodiments, the circumferential spacing structure includes an axial projection and an axial recess that axially cooperate to circumferentially spacing the first portion when the first seal ring is sleeved on the rotating shaft from bottom to top. Thus, the assembly is convenient.

In some embodiments, an axial projection is provided on the first portion and an axial recess is provided on the bottom portion. Thus, the axial protrusion is arranged on the first part, which is beneficial to the first part to be stronger.

In some embodiments, the base plate is provided with a sealing annulus in which the second portion is sealingly engaged. Therefore, the sealing device has better sealing, and is simple in structure and convenient to assemble.

After adopting the structure, compared with the prior art, the utility model has the following advantages:

thus, the sealing part mainly bears the sealing function, the friction piece mainly provides a first friction force, the sealing part provides certain sealing protection for the friction piece, the sealing part and the friction piece respectively play roles, and the friction force between the sealing part and the rotating shaft is smaller, so that the loss is smaller, and therefore, in the design service life, the sealing part is not easy to fail, and the service life of the sealing part is improved.

In summary, the present disclosure facilitates improving reliability and stability.

The utility model also provides a cleaning machine provided with the lifting rotary mop structure.

The beneficial effects of the technical scheme are that: not only realizes that the mop is directly lifted, and solves the problem of heavier lifting part, but also has simpler structure and is beneficial to the miniaturization of the cleaner.

Drawings

Fig. 1 is a perspective view of a cleaner from a lower perspective.

Fig. 2 is a perspective view of a lifting rotary mop structure from a top view.

Figure 3 is a perspective view from below of a rotary mop structure which can be lifted and lowered (with one mop removed and the friction member removed to expose the annular groove).

Fig. 4 is a perspective view of the friction member of fig. 3 installed.

Fig. 5 is a perspective view of a rotary mop structure in elevation from below (with the base removed and one mop).

Figure 6 is a top view of a rotary mop structure that can be lifted and lowered.

Fig. 7 is a cross-sectional view in the A-A direction.

Fig. 8 is an enlarged schematic diagram of a.

Figure 9 is a perspective view of a liftable rotary mop structure with the cover removed.

Fig. 10 is a perspective view with the rotating shaft further removed.

Figure 11 is a schematic perspective view of another liftable rotary mop.

Fig. 12 is a schematic perspective view mainly showing the first abutting end face.

Fig. 13 is a schematic perspective view mainly showing the second abutting end face.

Fig. 14 is a perspective view of a rotary member from a lower perspective.

Fig. 15 is a perspective view of a rotating member from an upper view perspective.

Fig. 16 is a perspective view of a rotary member.

Fig. 17 is a top view of a friction member.

Fig. 18 is a B-B cross-sectional view.

Figure 19 is a schematic cross-sectional view of a liftable rotary mop structure with a spacing top.

Fig. 20 is a perspective view showing a rotation shaft divided into two sections in an axial direction to open an opening of a spiral groove.

Fig. 21 is a perspective view of a portion of the base where the mount is located from a top view.

Fig. 22 is a perspective view of a portion of the base where the mount is located from below.

Fig. 23 is a perspective view of the housing from a lower perspective.

Fig. 24 is a schematic perspective view of the base and the base plate.

Fig. 25 is a perspective view with the housing removed.

Fig. 26 is a schematic perspective view of the first seal ring mated with the rotating shaft.

Fig. 27 is a schematic perspective view of the first seal ring.

Fig. 28 is a bottom perspective view of the housing.

Fig. 29 is a perspective view of the base plate.

The reference numerals are used to describe the components, 1-rotating member, 2-rotating shaft, 3-mop, 4-friction member, 5-base, 6-through hole, 7-annular groove, 8-upper annular portion, 9-lower annular portion, 10-drive gear, 11-guide portion, 12-drive tooth portion, 13-mount, 14-bottom, 15-mount post, 16-mount hole, 17-screw post, 18-first sleeve, 19-second sleeve, 20-cover, 21-upper limit end, 22-lower limit end, 23-electric motor, 24-worm wheel, 25-worm, 26-drive gear, 27-boot, 28-ball, 29-limit top, 30-spiral groove, 31-first abutment end, 32-second abutment end, spiral protrusion, 34-lower end, 35-upper end, 36-left half, 37-right half, 38-upper segment, 39-lower segment, 40-insert hole, 41-elastic connection member, 42-elastic member, 43-connection rod, iron core, 45-46-47, first sweep-drive wheel, 48-second drive wheel, 48-seal ring, 55-guide post, 53-seal ring, 55-seal ring, 52-seal ring, and seal ring, 62-sealing annulus.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

As shown in fig. 1 to 20, a rotary mop structure capable of lifting and a cleaning machine, in particular, a rotary mop structure capable of lifting comprises a rotating member 1, a rotating shaft 2 and a mop 3, wherein the rotating member 1 is in spiral transmission connection with the rotating shaft 2, the rotating member 1 is fixed and rotatable relative to the axial position of the rotating shaft 2, the rotating shaft 2 is provided with an upper lifting limit and a lower lifting limit, the rotating member 1 drives the rotating shaft 2 to lift through the spiral transmission connection between the upper lifting limit and the lower lifting limit, when the upper lifting limit is carried out, if the rotating member 1 continuously maintains rotation in a first direction, the rotating member 1 and the rotating shaft 2 are limited through the first limiting structure so as to stop relative rotation of the rotating member 1 and the rotating shaft 2, and the rotating shaft 2 can be driven to rotate together by the rotating member 1, the first direction means that the rotating member 1 drives the rotating shaft 2 to lift, and, when the rotation member 1 continues to maintain the rotation in the second direction during the lifting and lowering limiting, the rotation member 1 and the rotation shaft 2 are limited by the second limiting structure to stop the rotation of the rotation member 1 and the rotation shaft 2, so that the rotation shaft 2 can be driven to rotate together by the rotation member 1, the second direction is the rotation direction in which the rotation member 1 drives the rotation shaft 2 to descend, the first direction is opposite to the rotation direction in the second direction, the rotation shaft 2 is connected with the mop 3, the rotation shaft 2 is used for driving the mop 3 to rotate and lift, at least one friction member 4 is arranged along the circumferential direction of the rotation shaft 2, the friction member 4 is in friction connection with the rotation shaft 2, the friction force between the friction member 4 and the rotation shaft 2 is recorded as a first friction force, the first friction force is used for limiting the rotation of the rotation shaft 2 to enable the rotation member 1 and the rotation shaft 2 to rotate relatively to lift the rotation shaft 2, when the lifting upper limit is carried out, the rotating piece 1 continuously maintains the first direction to rotate, the rotating shaft 2 is driven to overcome the first friction force to enable the rotating shaft 2 to rotate together, and when the lifting lower limit is carried out, the rotating piece 1 continuously maintains the second direction to rotate, the rotating shaft 2 is driven to overcome the first friction force to enable the rotating shaft 2 to rotate together; a cleaning machine adopts the lifting rotary mop structure.

It should be noted that the first friction force is used to limit the rotation of the rotation shaft 2 so that the rotation member 1 and the rotation shaft 2 rotate relatively to raise and lower the rotation shaft 2 means that the rotation shaft 2 may be completely stationary or the rotation shaft 2 may also have a certain rotation, but the rotation member 1 and the rotation shaft 2 still have a relative rotation, in short, only a rotation speed difference exists between the rotation member 1 and the rotation shaft 2.

In some embodiments, as shown in fig. 1, a cleaning machine (i.e., a sweeping robot) employing the liftable rotary mop structure of the present disclosure comprises: the machine body 46, the machine body 46 is used for installing or being used as a shell to cover each component, such as a first driving wheel 47, a second driving wheel 48, a middle broom 49, a lifting rotary mop structure and the like, the middle broom 49 is provided with a rolling brush and a main suction port, the cleaning surface is firstly cleaned by the rolling brush and dust collection by the middle broom 49, then the lifting rotary mop structure connected with the mop 3 is used for rotary cleaning, and based on the two angles of controlling the cleaning machine body and guaranteeing the cleaning efficiency, the preferred technical scheme is that one mop 3 is arranged left and right, for example, two mops 3 are arranged basically symmetrically left and right along the travelling direction of the cleaning machine, so that the lifting rotary mop structure of the disclosure has two arranged basically symmetrically left and right.

Since the technical solution of the present disclosure has the advantage that the driving gear 10 can drive the mop 3 to lift and drive the mop 3 to rotate, the structure basis is provided for further simplifying the structure, and therefore, although two mops 3 need to be operated, only one electric motor 23 can be used, and the specific structure can be referred to as follows: comprises an electric motor 23 and a plurality of mops 3, each mop 3 is provided with a rotating shaft 2, each rotating shaft 2 is provided with a driving gear 10, the electric motor 23 is in transmission connection with each driving gear 10 through a transmission structure, and the electric motor 23 is used as the electric motor 23 for driving the mop 3 to lift by the rotating shaft 2 and is also used as the electric motor 23 for driving the mop 3 to rotate by the rotating shaft 2. The transmission structure, for example, a worm gear transmission structure, may be adopted by the electric motor 23, and the double-output shaft structure has two output shafts which are symmetrical left and right, the two output shafts are respectively connected with a worm 25, each worm 25 is correspondingly provided with a worm wheel 24, the worm wheel 24 is coaxially provided with a transmission gear 26, the transmission gear 26 is meshed with the transmission tooth part 12 of the driving gear 10 for transmission connection, and in order to make the center of gravity of the driving gear 10 be lower, the worm wheel 24 and the transmission gear 26 adopt a structure which is coaxially distributed up and down. The foregoing structure can be seen with reference to fig. 5 and 8.

In order to simplify the structure as much as possible and achieve the purpose of miniaturization, the present disclosure recommends that a friction member 4 is used to achieve the purpose of lifting the rotating shaft 2, and reference is made to fig. 4, 6 and 7. In order to facilitate the stability of the movement of the rotatable shaft 2, the present disclosure recommends that the friction member 4 is arranged on the side close to the mop 3, see fig. 4, 6, 7. In order to further realize the stability of the motion of the rotating shaft 2, and further reduce the height, thereby being beneficial to miniaturization, the present disclosure recommends that the rotating member 1, the guiding portion 11 and the friction member 4 are adjacently arranged from top to bottom, and the rotating member 1, the guiding portion 11 and the friction member 4 are all ring-shaped parts with circumferential closed loops, so that the rotating shaft 2 is better supported in the circumferential direction, and reference can be made to fig. 4, 6, 7, 9, 16 and 17.

In some embodiments, as shown in fig. 2 to 5 and 8 to 10, the liftable rotary mop structure is arranged into a modularized structure, namely, the liftable rotary mop structure is arranged into a single module, the liftable rotary mop structure is assembled, then the module is installed in the machine body 46, and then the mop 3 is connected, so that the design has the advantage of modularization, and once the machine body 46 reserves the space for installing the module, the module can be conveniently installed to add the function of the liftable mop 3 to the machine body 46 after the module is taken out, and the module is suitable for mass production. In particular, the modular lifting rotary mop structure is small or the housing 46 is kept in a sufficient installation space, so that even if the housing 46 is changed or adjusted in shape, it is advantageous to use the module directly, i.e. the shape of the module is independent of the housing 46.

Specific structures of modularization are for example: the base comprises a base 5 and a cover 20, and the part of the liftable rotary mop structure except the mop 3 is arranged between the base 5 and the cover 20, so that the assembly is more convenient, the gravity center is lower, as shown in fig. 2 to 5 and 8 to 10, the liftable rotary mop structure is basically arranged on the base 5, in addition, in some embodiments, the lifting height requirement is higher, the height of the rotating shaft 2 is higher, the protective cover 27 protruding upwards from the upper side surface of the cover 20 is arranged, and the space around the protective cover 27 can be used for installing other parts of the cleaner, thus being beneficial to miniaturization. While in some embodiments the protective cover 27 at the same time acts as a guiding cover for guiding the lifting of the rotating shaft 2. In addition, through further setting up electric connection plug 50, this electric connection plug 50 is as the total interface of inside and outside electricity connection, provides power supply and signal connection through electric connection plug 50 to make the rotatory mop structure of modularization liftable when loading into organism 46, further simplify the assembly work, make things convenient for the rotatory mop structure of modularization liftable to carry out electric connection with the power module and the control module of cleaning machine.

In some embodiments, as shown in fig. 7, 16, 17, the friction member 4 employs a friction sleeve that is sleeved with the rotating shaft 2.

In some embodiments, as shown in fig. 2, 3, 4 and 6, the mop 3 is disposed at the lower side of the base 5, the base 5 is provided with a through hole 6 for lifting and lowering the rotating shaft 2, the lower end of the rotating shaft 2 is exposed out of the through hole 6 and connected with the mop 3, and the through hole 6 is provided with a sealing member, and the sealing member simultaneously serves as the friction member 4.

In some embodiments, as shown in fig. 2, 3, 4, 6, 17 and 18, the side of the base 5, which is located on one side of the mop cloth 3, is provided with an annular groove 7, and the annular groove 7 is sleeved with a sealing member, the sealing member is provided with a sealing part extending towards the circumference of the rotating shaft 2, the sealing part is rotatably connected with the rotating shaft 2, and a first friction force is formed between the sealing part and the rotating shaft 2.

In some embodiments, as shown in fig. 6, 17, 18, the friction member 4 is provided with a circumferential elastic portion that generates a first friction force by elastically friction-coupling against the rotation shaft 2.

In some embodiments, as shown in fig. 6 and 18, the circumferential elastic portion is disposed obliquely with respect to the rotation shaft 2. In particular, in some embodiments, the circumferential elastic portion comprises an upper and a lower annular portion, respectively designated as upper annular portion 8 and lower annular portion 9, which form a V-shaped portion open to one side of the rotation shaft 2.

In some embodiments, as shown in fig. 6 to 10 and fig. 14 and 15, the device further comprises a driving gear 10 which is fixed and rotatable relative to the axial position of the rotating shaft 2, wherein the driving gear 10 is connected with the rotating shaft 2 in a sleeved mode, and the driving gear 10 is coaxially connected with the rotating member 1 to drive the rotating member 1 to rotate together.

In some embodiments, as shown in fig. 7, 14 and 15, the drive gear 10 is provided with a guide 11, said guide 11 being in axially guided connection with the rotation shaft 2.

In some embodiments, as shown in fig. 7, 14 and 15, the guiding part 11 adopts a guiding sleeve, and as shown in fig. 7, the rotating shaft 2 is in a lifting lower limit position, at this time, the lower end of the outer screw of the rotating shaft 2 is beyond the end face of the lower end of the guiding part 11, but in order to better prevent foreign matters from entering the screw transmission connection from the lower end of the outer screw, the guiding part 11 can be continued to extend downwards, so that the lower end of the outer screw of the rotating shaft 2 is still located in the guiding part 11, i.e. the lower end of the spiral groove 30 is still located in the guiding part 11, and at least part of the peripheral wall of the non-spiral area of the rotating shaft 2 located at the lower side of the outer screw is in a sleeved fit with the guiding part 11, and the sleeved fit is used for preventing foreign matters from entering the screw transmission connection from the lower end of the outer screw.

In some embodiments, as shown in fig. 7, 14 and 15, the driving gear 10 includes a driving gear portion 12 located at an outer circumference and a guide portion 11 located at an inner circumference, and a first rotation support structure for rotatably supporting the driving gear 10 is provided between the driving gear portion 12 and the guide portion 11. The first rotating support structure typically employs bearings or bushings.

In some embodiments, as shown in figures 7, 14, 15 and 23, the first rotary support structure comprises a mounting seat 13 extending in a direction away from one side of the mop 3, which mounting seat 13 is inserted into the annular space between the drive tooth 12 and the guide 11, and the drive gear 10 is rotatably connected to the mounting seat 13. In this example, the guide portion 11 is sleeved with the mounting base 13, and a first shaft sleeve 18 is disposed between the guide portion 11 and the mounting base 13. Of course, the first sleeve 18 may be replaced by a rotational support structure such as a ball bearing, but since the first sleeve 18 has no structure such as a roller, the thickness is smaller than the rotational support structure such as a ball bearing, and thus the present disclosure is more suitable for the miniaturization requirement.

In some embodiments, as shown in figures 7, 21 and 22, the mounting seat 13 is provided on the bottom 14 of the stand, i.e. on the bottom 14 of the base 5, the underside of the bottom 14 being the side of the mop 3, and the upper side of the bottom 14 being provided with said mounting seat 13.

In some embodiments, as shown in fig. 3, 4, 7, 21 and 22, an annular groove 7 is arranged on the lower side surface of the bottom 14 corresponding to the position occupied by the mounting seat 13, and the annular groove 7 is sleeved and fixed with the friction piece 4.

In some embodiments, as shown in fig. 7 and 9, the rotating member 1 and the guide portion 11 are vertically distributed along the axial direction of the drive gear 10, and the lower end of the rotating member 1 is disposed adjacent to the upper end of the guide portion 11. In this example, the lower end of the rotator 1 is attached to the upper end of the guide 11.

In some embodiments, as shown in fig. 7, 14 and 15, the driving gear 10 is provided with a mounting post 15 located at the upper side of the guide 11, the mounting post 15 is provided with a mounting hole 16, and the rotary 1 is mounted in the mounting hole 16. In order to more conveniently install and more reliably fix the rotating member 1, a plurality of screw connection columns 17 are arranged in the mounting holes 16, 4 screw connection columns 17 are circumferentially distributed in the drawing, after the rotating member 1 is installed in the mounting holes 16, the rotating member 1 is fixed on the screw connection columns 17 by using screws 53, so that larger torque can be born, and the transmission requirement is met.

In some embodiments, as shown in fig. 7, 14 and 15, the driving gear 10 has a transmission gear portion 12 located at the outer periphery, the transmission gear portion 12 being located at the lower side of the mounting post 15, and the transmission gear portion 12 and the rotary member 1 being distributed up and down in the axial direction of the driving gear 10.

In some embodiments, the outer circumference of the mounting post 15 is provided with a rotational support structure. As shown in fig. 7, the second rotation support structure is used as the aforementioned rotation support structure, which is advantageous for the simplification of the structure.

In some embodiments, as shown in fig. 7, 14 and 15, the upper side of the driving gear 10 is provided with a cover 20, which cover 20 is rotatably connected to the driving gear 10, and the cover 20 is used to prevent foreign objects from entering the screw drive connection from the upper end of the outer screw of the rotating shaft 2. For example, a sealing ring may be disposed between the cover 20 and the driving gear 10, but other structures besides the sealing ring are also possible, and any applicable structure may be applied in the present disclosure.

In some embodiments, as shown in fig. 7, the upper side of the driving gear 10 is provided with a cover 20, and a second rotation support structure is provided between the cover 20 and the driving gear 10, and the driving gear 10 is rotatably connected with the cover 20 through the second rotation support structure, and the second rotation support structure simultaneously blocks a passage for foreign matters from between the cover 20 and the driving gear 10 to the upper end of the outer spiral of the rotating shaft 2 and into the spiral transmission connection, that is, the second rotation support structure is used to realize foreign matter entry prevention. In this example, as shown in fig. 7 and 23, the cover 20 is provided with a socket post 51, the socket post 51 extends to one side of the driving gear 10, the socket post 51 is externally and internally sleeved with the mounting post 15 of the driving gear 10, a second sleeve 19 is disposed between the socket post 51 and the driving gear 10, the socket post 51 is externally and internally sleeved with the mounting post 15 of the driving gear 10, and the second sleeve 19 is disposed to block foreign matters. Of course, the second sleeve 19 may be replaced by a rotational support structure such as a ball bearing, but since the second sleeve 19 has no structure such as a roller, the thickness is smaller than the rotational support structure such as a ball bearing, and thus the present disclosure is more suitable for the miniaturization requirement.

In some embodiments, as shown in fig. 7, a second rotation support structure is circumferentially arranged at the upper part of the driving gear 10, and the second rotation support structure and the first rotation support structure are distributed up and down to form up and down rotation support for the driving gear 10. In this example, the upper part of the drive gear 10, i.e., part or all of the mounting post 15.

In some embodiments, as shown in fig. 7, the second rotary support structure has an upper limit end 21, the upper limit end 21 axially abuts against the driving gear 10 to axially limit the driving gear 10, and the first rotary support structure has a lower limit end 22, and the lower limit end 22 axially abuts against the driving gear 10 to axially limit the driving gear 10 downward. Thus, the second rotation support structure and the first rotation support structure can be simultaneously used as an axial limiting structure for the driving gear 10, thereby being beneficial to structure simplification.

In some embodiments, as shown in fig. 7 and 21, the inner periphery of the mounting seat 13 is provided with a first annular supporting surface as a lower limiting end 22 of the first rotation supporting structure, and the lower end of the first shaft sleeve 18 is matched with the lower limiting end 22 in a fitting manner, so that the first shaft sleeve 18 is limited downwards by the lower limiting end 22, and the first shaft sleeve 18 is limited between the guide part 11 and the mounting seat 13, so that the axial downwards limitation of the driving gear 10 is finally formed.

In some embodiments, as shown in fig. 7 and 23, the top surface of the housing serves as an upper limit end 21 of the second rotation support structure, and the upper end of the second sleeve 19 is in a fitting engagement with the upper limit end 21, so that the second sleeve 19 is limited axially by the upper limit end 21, and the second sleeve 19 is limited between the housing and the driving gear 10, so that the axial limitation of the driving gear 10 is finally formed.

Regarding the axial limiting scheme of the driving gear 10, the structure shown in fig. 7 is a compact and simple design scheme, but the axial limiting scheme can also be other schemes, for example, limiting the upper end face and the lower end face of the driving gear 10, specifically, the top surface of the housing can be rotatably attached to the upper end face 35 of the driving gear 10, the upper side surface of the bottom 14 of the base 5 is rotatably attached to the lower end face 34 of the driving gear 10, for example, the first shaft sleeve 18 and/or the second shaft sleeve 19 are replaced by bearings capable of axially limiting, and axial limiting of the driving gear 10 is realized through axial limiting of the bearings, so that any scheme suitable for axially limiting the driving gear 10 can be used in the present disclosure.

In some embodiments, as shown in fig. 19, a limiting top 29 is disposed on the upper side of the rotating shaft 2, the upper end of the rotating shaft 2 is rotatably abutted against the limiting top 29, the limiting top 29 forms a first limiting structure, in order to reduce friction, a ball 28 is disposed between the upper end of the rotating shaft 2 and the limiting top 29, in this example, the ball 28 is disposed on the upper end of the rotating shaft 2, and the limiting top 29 forms a lifting upper limit for the rotating shaft 2. Therefore, the lifting upper limit scheme is different from the lifting upper limit scheme which is formed by abutting the lower end surface 34 of the spiral protrusion 33 of the inner spiral with the first abutting end surface 31. Of course, the schemes of upper lifting limit and lower lifting limit on the rotating shaft 2 are also other, for example, the upper end and the lower end of the spiral are matched, namely, a first limit structure and a second limit structure are respectively formed by using the scheme of locking at the tail end of the spiral, for example, an upper stop lever and a lower stop lever are arranged on the rotating shaft 2, the rotating member 1 and the rotating shaft 2 are prevented from continuously moving relatively by the stop lever, and meanwhile, the scheme of preventing the rotating member 1 and the rotating shaft 2 from continuously moving relatively by the stop lever is also used for respectively forming the first limit structure and the second limit structure. Any suitable scheme for forming a lifting upper limit and a lifting lower limit for the rotation shaft 2 can be used in the present disclosure.

In some embodiments, as shown in fig. 19, a protective cover 27 for accommodating the lifting of the rotating shaft 2 is provided on the upper side of the rotating shaft 2, and the inner top surface of the protective cover 27 serves as a limit top 29.

In some embodiments, as shown in fig. 12, 13 and 16, the lower end of the spiral groove 30 of the outer spiral of the rotating shaft 2 is of a closed design, the lower end is provided with a first abutting end face 31, when the rotating shaft 2 rises to the position that the lower end face 34 of the spiral protrusion 33 of the inner spiral of the rotating member 1 abuts against the first abutting end face 31, the position of the rotating shaft 2 is the lifting upper limit position of the rotating shaft 2, the first abutting end face 31 forms a first limit structure, and if the rotating member 1 continues to rotate in the first direction, the lower end face 34 of the spiral protrusion 33 can push the rotating shaft 2 to rotate through abutting connection with the first abutting end face 31; and/or, the upper end of the spiral groove 30 of the outer spiral of the rotating shaft 2 is of a closed design, the upper end is provided with a second abutting end face 32, when the rotating shaft 2 descends to a position when the upper end face 35 of the spiral protrusion 33 of the inner spiral of the rotating member 1 abuts against the second abutting end face 32, at the moment, the position where the rotating shaft 2 is located serves as a lifting lower limit position of the rotating shaft 2, the second abutting end face 32 forms a second limit structure, and at the moment, if the rotating member 1 continues to rotate in the second direction, the upper end of the spiral protrusion 33 can push the rotating shaft 2 to rotate through abutting connection with the second abutting end face 32. In this example, the lower end face 34 of the spiral protrusion 33 of the inner spiral abuts against the first abutting end face 31, and the upper end face 35 of the spiral protrusion 33 abuts against the second abutting end face 32, so that the scheme of upper limit and lower limit of lifting is formed on the rotating shaft 2, the purpose that the rotating member 1 drives the rotating shaft 2 to rotate better is achieved, the structure is simplified, and miniaturization is achieved. Due to the above arrangement, the spiral length of the spiral protrusion 33 may be short and not long, and for example, as shown in fig. 10, there may be only a small section, and the spiral protrusion 33 of the small section is located entirely on the left half 36 of the rotary member 1.

In some embodiments, as shown in fig. 12, 13, 16, the first abutment surface 31, the lower surface 34 of the helical projection 33 are each provided as a radial mating surface, and/or the second abutment surface 32, the upper surface 35 of the helical projection 33 are each provided as a radial mating surface. In this example, the first abutting end face 31, the lower end face 34 of the spiral protrusion 33, the second abutting end face 32, and the upper end face 35 of the spiral protrusion 33 are all provided as radial mating faces.

In some embodiments, as shown in fig. 9 and 10, the rotor 1 is divided into a plurality of parts in the circumferential direction, which are spliced around the rotation shaft 2 to achieve a screw drive connection of the rotor 1 with the rotation shaft 2. In this example, the rotor 1 is divided into two parts, a left half 36 and a right half 37.

In some embodiments, as shown in fig. 11, since the spiral length of the spiral protrusion 33 may not be long, there may be only the left half 36, and the spiral protrusion 33 is located on the left half 36, but if the rotating member 1 is a circumferential closing member, it is advantageous to drive the rotating shaft 2 to move.

In some embodiments, the rotating shaft 2 is divided axially into a plurality of parts, wherein at least one part opens the helical groove 30 of the outer helix for the screw drive connection of the rotating member 1. As shown in fig. 20, the rotating shaft 2 is divided into an upper section 38 and a lower section 39, the main body of the spiral groove 30 is located at the upper section 38, and the first abutting end surface 31 is located at the lower section 39, so that the spiral groove 30 is opened, the rotating member 1 can be screwed into the upper section 38 by the lower end of the upper section 38, and then the upper section 38 and the lower section 39 are spliced, thereby completing the screw driving connection of the rotating member 1 and the rotating shaft 2.

In some embodiments, the mop 3 is floatably connected to the shaft 2, by which is meant that the mop 3 is axially movable relative to the shaft 2 when passing over surfaces to be cleaned of different heights to achieve an adaptive height variation of the mop 3, but the shaft 2 itself is of constant height. An axially movable spring movement structure is provided between the floatable connection, e.g. the rotation shaft 2 and the mop 3, for driving the mop 3 to perform an axially resilient movement relative to the rotation shaft 2 for achieving an adaptive height change of the mop 3. As shown in fig. 7 and 8, the elastic moving structure includes an insertion hole 40 provided in the rotation shaft 2 and an elastic connection piece 41 axially movable in the insertion hole 40, a connection rod 43 is provided at an upper side of the mop 3, and a lower end opening of the rotation shaft 2 serves as an insertion opening of the insertion hole 40 into which the connection rod 43 is inserted and connected with the elastic connection piece 41. Under the action of the elastic connecting piece 41, the mop 3 is elastically attached to the surface to be cleaned, and along with the change of the roughness of the surface to be cleaned, the mop 3 can naturally lift under the action of the elastic connecting piece 41, so that the surface to be cleaned is better cleaned by the mop 3.

The elastic connection member 41 may be made of an elastic material, but other solutions are also possible, for example, an elastic member 42 is provided on the elastic connection member 41, the upper end of the elastic member 42 is abutted against the bottom surface of the insertion hole 40, the lower end of the elastic member 42 is sleeved and abutted against the elastic connection member 41, and the elastic connection member 41 is inserted into a guide hole 52 provided in the rotation shaft 2 and located on the upper side of the bottom surface.

In some embodiments, as shown in fig. 7 and 8, the lower end of the elastic connection member 41 is connected to the upper end of the connection rod 43 by a magnetic connection, in this case, specifically, the lower end of the elastic connection member 41 is provided with a magnet 45, and the upper end of the connection rod 43 is provided with an iron core 44.

In some embodiments, as shown in fig. 5, since the torque force required for the rotation of the mop 3 is large when cleaning the surface to be cleaned, the insertion hole 40 is provided as an inner hexagonal mating hole, the connection rod 43 is provided with an outer hexagonal peripheral wall, the outer hexagonal peripheral wall and the inner hexagonal mating hole form a rotary transmission socket of the connection rod 43 and the insertion hole 40, and since the outer hexagonal peripheral wall and the inner hexagonal mating hole have large contact surfaces, a large torque transmission can be provided, which is beneficial to the stability of the rotation of the mop 3.

Compared with the technical scheme, the lifting rotary mop structure is further provided, and particularly the lifting rotary mop structure further comprises a sealing part 56, the friction piece 4 and the sealing part 56 are sequentially arranged up and down along the axial direction of the rotating shaft 2, the friction piece 4 and the sealing part 56 are rotatably sleeved and matched with the rotating shaft 2, the sealing part 56 seals the friction piece 4 on the inner side, and the friction piece 4 and the sealing part 56 are integrally arranged or separately arranged. The friction member 4 is provided integrally with the seal portion 56 as shown in fig. 26, for example; the split arrangement may be such that one or more sealing rings are provided separately on the underside of the friction member 4, and the friction member 4 and the sealing rings are separated in the axial direction, but the structure is relatively complicated, and the assembly is also troublesome. So designed, the friction member 4 may be more focused on providing the first frictional force than the structural scheme shown in fig. 8, while the sealing portion 56 is more focused on sealing, and the sealing may be achieved by using a material having a small frictional force while having a small frictional force, thereby reducing frictional loss.

In the case of the integral arrangement, as shown in fig. 26 and 27, for example, the friction member 4 and the seal portion 56 are integrally arranged by using a first seal ring 55, and the first seal ring 55 includes an upper portion and a lower portion, respectively, a first portion serving as the friction member 4 and a second portion serving as the seal portion 56.

In some embodiments, as shown in fig. 26 and 27, the first part is circumferentially sleeved with at least one collar 57, which collar 57 is used to bring the first part into close contact with the outer circumferential wall of the rotating shaft 2. In this example, a collar 57 is used, and the collar 57 may be a plastic ring, a metal ring, or the like having elasticity.

In some embodiments, as shown in fig. 26 and 27, the first portion is provided with at least one swinging section 58 swinging to the side of the rotating shaft 2 in the circumferential direction, and the collar 57 presses the abutting portion 59 of the swinging section 58 against the outer circumferential wall of the rotating shaft 2. In this example, three swinging segments 58 are arc-shaped and are arranged along the Zhou Xiangyi sequence. In addition, the conforming portion 59 is preferably of a massive design, which is more durable.

In some embodiments, as shown in fig. 24, 25, 28 and 29, the device further comprises a stand, wherein the lower side of the bottom 14 of the stand is provided with a matched bottom plate 54, and a first sealing ring 55 is matched between the bottom 14 and the bottom plate 54; mop 3 is arranged at the lower side of bottom plate 54, base and bottom plate 54 are provided with through holes 6 for lifting and lowering rotating shaft 2, and the lower end of rotating shaft 2 is exposed out of through holes 6.

In some embodiments, a circumferential stop is provided between the base 14 and the first portion for circumferentially stopping the first portion. For example, the circumferential spacing structure includes an axial protrusion 60 and an axial recess 61, and when the first seal ring 55 is sleeved on the rotating shaft 2 from bottom to top, the axial protrusion 60 and the axial recess 61 axially cooperate to circumferentially spacing the first portion.

As shown in fig. 26, 27, 28, an axial projection 60 is provided on the first portion and an axial recess 61 is provided on the bottom 14.

As shown in fig. 29, the base plate 54 is provided with a sealing annulus 62, and the second portion is sealingly engaged in the sealing annulus 62.

In understanding the present disclosure, the above-described structures may be understood with reference to other embodiments/drawings, if necessary, and are not described herein.

The foregoing description is only illustrative of the present utility model and is therefore intended to cover all such modifications and changes in form, details, and materials as fall within the true spirit and scope of the utility model.

Claims (10)

1. The utility model provides a liftable rotatory mop structure, including rotating piece (1), axis of rotation (2) and mop (3), rotating piece (1) and axis of rotation (2) screw drive are connected, rotating piece (1) is fixed and rotatable relative axis of rotation (2) axial position, axis of rotation (2) have two positions of lift upper limit and lift lower limit, rotating piece (1) is through being located the screw drive connection between lift upper limit and the lift lower limit and drive axis of rotation (2) and go up the spacing, and when the lift upper limit, rotating piece (1) if continue to keep first direction rotation, then through first limit structure spacing so that rotating piece (1) and axis of rotation (2) stop relative rotation, and then make axis of rotation (2) can be driven by rotating piece (1) and rotate together, first direction means that rotating piece (1) drives the direction of rotation (2) and go up, and when the lift lower limit, if continue to keep second direction rotation, then rotate piece (1) and rotate through second limit structure so that rotating piece (1) and axis of rotation (2) are driven by second limit structure, make rotating piece (1) and rotation (2) rotate together in a relative direction of rotation (2) are driven by rotation (2), the mop is characterized by further comprising at least one friction piece (4) arranged along the circumferential direction of the rotating shaft (2), wherein the friction piece (4) is in friction connection with the rotating shaft (2), the friction force between the friction piece (4) and the rotating shaft (2) is recorded as a first friction force, the first friction force is used for limiting the rotating shaft (2) to rotate so that the rotating piece (1) and the rotating shaft (2) relatively rotate to lift the rotating shaft (2), and when the lifting is limited, the rotating piece (1) continuously maintains the first direction to enable the rotating shaft (2) to rotate together when the lifting is limited, and when the lifting is limited, the rotating piece (1) continuously maintains the second direction to enable the rotating shaft (2) to rotate together when the lifting is limited;

the friction piece (4) and the sealing part (56) are sequentially arranged up and down along the axial direction of the rotating shaft (2), the friction piece (4) and the sealing part (56) are rotatably sleeved and matched with the rotating shaft (2), the sealing part (56) seals the friction piece (4) on the inner side, and the friction piece (4) and the sealing part (56) are integrally arranged or are arranged in a split mode.

2. A lifting rotary mop structure according to claim 1, characterized in that the friction member (4) is integrally arranged with the sealing part (56) by means of a first sealing ring (55), the first sealing ring (55) comprising an upper and a lower part, respectively a first part and a second part, the first part being the friction member (4) and the second part being the sealing part (56).

3. A lifting and lowering rotary mop structure according to claim 2, characterized in that the first part is peripherally fitted with at least one collar (57), which collar (57) is adapted to bring the first part into close contact with the peripheral wall of the rotary shaft (2).

4. A lifting rotary mop structure according to claim 3, characterized in that the first part is provided with at least one swinging section (58) swinging towards the side of the rotary shaft (2) in the circumferential direction, and the collar (57) presses the abutment (59) of the swinging section (58) against the peripheral wall of the rotary shaft (2).

5. A lifting rotary mop structure according to claim 2, further comprising a base, wherein the lower side of the base bottom (14) is provided with a mating bottom plate (54), and wherein the first sealing ring (55) is fitted between the base bottom (14) and the bottom plate (54); mop cloth (3) is arranged on the lower side of the bottom plate (54), the machine base and the bottom plate (54) are respectively provided with a through hole (6) for lifting the rotating shaft (2), and the lower end of the rotating shaft (2) is exposed out of the through holes (6).

6. A rotary mop structure according to claim 5, wherein a circumferential limit structure is provided between the base (14) and the first part, the circumferential limit structure being adapted to limit the first part circumferentially.

7. A rotary mop structure according to claim 6 characterised in that the circumferential limit structure comprises an axial projection (60) and an axial recess (61), the axial projection (60) and the axial recess (61) axially cooperating to circumferentially limit the first portion when the first seal ring (55) is fitted over the rotary shaft (2) from bottom to top.

8. A rotary mop structure which can be lifted and lowered according to claim 7, characterized in that an axial projection (60) is provided on the first part and an axial recess (61) is provided on the bottom (14).

9. A lifting rotary mop structure according to claim 5, wherein the base plate (54) is provided with a sealing ring surface (62), and the second part is sealingly fitted in the sealing ring surface (62).

10. A cleaning machine provided with a liftable rotary mop according to any one of claims 1 to 9.