阅读说明：本技术 清洗机 (Cleaning machine ) 是由 范春林 高志军 于 2021-09-02 设计创作，主要内容包括：本发明涉及清洗装置技术领域,公开了一种清洗机,包括机箱、进料组件、出料组件、清洗组件和驱动机构,机箱的周壁的一侧开设有入口,对应于入口的另一侧开设有出口,入口和出口连通空腔,进料组件、清洗组件和出料组件在空腔内自入口向出口方向依次设置,形成横向的结构布局,在清洗防护垫时,防护垫可通过入口进入机箱内,并能够由进料组件、出料组件横向输送至出口,其中,清洗组件能够在进料组件和出料组件之间,通过清洗轮对经过进料组件和出料组件之间的防护垫进行刷洗,因此,无论是少量还是多量的防护垫,均可以通过该清洗机进行清洗,能够在一定程度上提高效率,并节省人力成本。(The invention relates to the technical field of cleaning devices, and discloses a cleaning machine, which comprises a machine case, a feeding assembly, a discharging assembly, a cleaning assembly and a driving mechanism, wherein one side of the peripheral wall of the machine case is provided with an inlet, the other side corresponding to the inlet is provided with an outlet, the inlet and the outlet are communicated with a cavity, the feeding assembly, the cleaning assembly and the discharging assembly are sequentially arranged in the cavity from the inlet to the outlet to form a transverse structural layout, when the protective pad is cleaned, the protective pad can enter the machine case through the inlet and can be transversely conveyed to the outlet through the feeding assembly and the discharging assembly, the cleaning assembly can brush the protective pad passing between the feeding assembly and the discharging assembly through a cleaning wheel between the feeding assembly and the discharging assembly, so that no matter a small amount of protective pad or a large amount of protective pads can be cleaned through the cleaning machine, the efficiency can be improved to a certain degree, and labor cost is saved.)

1. The cleaning machine is characterized by comprising a machine case, a feeding assembly, a cleaning assembly, a discharging assembly and a driving assembly, wherein a cavity is formed in the machine case, an inlet is formed in one side of the peripheral wall of the machine case, an outlet is formed in the other side corresponding to the inlet, the inlet is communicated with the outlet, the feeding assembly, the cleaning assembly and the discharging assembly are sequentially arranged in the cavity from the inlet to the outlet, and the cleaning machine is characterized in that:

the feeding assembly comprises a first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are rotatably connected to the case and are parallel to each other, a gap between the first feeding roller and the second feeding roller corresponds to the inlet, the first feeding roller and the second feeding roller can be attached to two sides of the protective pad, and the protective pad can be driven to move towards the outlet by rotating the first feeding roller;

the discharging assembly is used for bearing the protective pad moved out of the feeding assembly and comprises a first discharging roller and a second discharging roller, the first discharging roller and the second discharging roller are rotatably connected to the case and are parallel to each other, a gap between the first discharging roller and the second discharging roller corresponds to the outlet, the first discharging roller and the second discharging roller can be attached to two sides of the protective pad, and the protective pad can be driven to move by rotating the first discharging roller;

the cleaning assembly comprises a cleaning wheel which is rotatably connected to the case, and the rotating cleaning wheel is used for brushing the protection pad passing between the feeding assembly and the discharging assembly;

and the driving mechanism is used for driving the first feeding roller, the first discharging roller and the cleaning wheel to rotate.

2. The cleaning machine of claim 1 wherein the first feed roller is positioned below the second feed roller, the first discharge roller is positioned below the second discharge roller, the cleaning wheel is positioned between the first feed roller and the first discharge roller, and an outer surface of the cleaning wheel is higher than an outer surface of the first feed roller and an outer surface of the first discharge roller for cleaning the protective pad from below.

3. The cleaning machine of claim 2 wherein said first feed roll includes a roll axis and a plurality of rollers disposed along said roll axis with a receiving gap formed between adjacent rollers.

4. The cleaning machine of claim 1, further comprising a first spray pipe connected to the cabinet and extending along an axial direction of the first feed roller, wherein the first spray pipe is located obliquely above the first feed roller and not higher than the second feed roller, and a plurality of liquid outlets are formed in a direction of a gap between the first feed roller and the second feed roller, and the plurality of liquid outlets are arranged along the extending direction of the first spray pipe.

5. The cleaning machine of claim 1, further comprising a second spraying pipe connected to the housing and extending along the axial direction of the first feeding roller, wherein the second spraying pipe is located above the feeding assembly and the cleaning assembly, a plurality of liquid outlets are formed in a lower half portion of the second spraying pipe, and the plurality of liquid outlets are arranged along the extending direction of the second spraying pipe.

6. The cleaning machine of claim 1, wherein the feed assembly further comprises a first pretensioning mechanism connected to the housing and the second feed roller for urging the second feed roller toward the first feed roller;

or the discharging assembly further comprises a second pre-tightening mechanism, the second pre-tightening mechanism is connected to the case and the second discharging roller, and is used for pressing the second discharging roller towards the first discharging roller;

or the feeding assembly further comprises a first pre-tightening mechanism, the discharging assembly further comprises a second pre-tightening mechanism, the first pre-tightening mechanism is connected to the case and the second feeding roller and used for pressing the second feeding roller towards the first feeding roller, and the second pre-tightening mechanism is connected to the case and the second discharging roller and used for pressing the second discharging roller towards the first discharging roller.

7. The cleaning machine of any one of claims 1 to 6 wherein the drive mechanism includes a power element, a first transmission assembly and a second transmission assembly, wherein:

the first transmission assembly is connected to the power element and the wheel shaft of the cleaning wheel, and the power element drives the cleaning wheel to rotate through the first transmission assembly;

the second transmission assembly is connected with the cleaning wheel, the first feeding roller and the first discharging roller, and the cleaning wheel drives the first feeding roller and the first discharging roller to synchronously rotate through the second transmission assembly.

8. The cleaning machine of claim 7 wherein the second drive assembly includes a first gear coaxially coupled to the shaft of the cleaning wheel, a second gear rotatably coupled to the housing via a gear shaft and engaged with the first gear, and a second synchronous belt coupled to the gear shaft, the first feed roller and the first discharge roller for transmitting rotation of the cleaning wheel synchronously to the first feed roller and the first discharge roller.

9. The cleaning machine of claim 8 wherein the number of teeth of the first gear is less than the number of teeth of the second gear.

10. The washing machine of claim 7 further comprising a frame, the housing being connected to the frame and disposed above the frame, the power element being disposed below the housing.

Technical Field

The invention relates to the technical field of cleaning devices, in particular to a cleaning machine.

Background

The protection pad is laid on the floor, such as the protection pad, the foot mat, the carpet and the like, can play a certain role in decoration, dust removal, water absorption, mud removal, skid resistance and the like, and can also play a role in abrasion resistance and static resistance in some special occasions. These pads often require cleaning during manufacture to keep the product clean for shipment in a package or, during extended use, require periodic cleaning. At present, the protection pad is usually cleaned and maintained by manual wiping, water washing, dust removal of a dust collector and the like, but the cleaning efficiency is low, and if the cleaning quantity is large, large manpower is consumed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a cleaning machine which can be used for mechanically cleaning a protective pad, so that the cleaning efficiency is improved.

The cleaning machine comprises a machine case, a feeding assembly, a cleaning assembly, a discharging assembly and a driving assembly, wherein a cavity is formed in the machine case, an inlet is formed in one side of the peripheral wall of the machine case, an outlet is formed in the other side of the peripheral wall of the machine case, the inlet and the outlet are communicated with the cavity, the feeding assembly, the cleaning assembly and the discharging assembly are sequentially arranged in the cavity from the inlet to the outlet, and the cleaning machine comprises:

the feeding assembly comprises a first feeding roller and a second feeding roller, the first feeding roller and the second feeding roller are rotatably connected to the case and are parallel to each other, a gap between the first feeding roller and the second feeding roller corresponds to the inlet, the first feeding roller and the second feeding roller can be attached to two sides of the protective pad, and the protective pad can be driven to move towards the outlet by rotating the first feeding roller;

the discharging assembly is used for bearing the protective pad moved out of the feeding assembly and comprises a first discharging roller and a second discharging roller, the first discharging roller and the second discharging roller are rotatably connected to the case and are parallel to each other, a gap between the first discharging roller and the second discharging roller corresponds to the outlet, the first discharging roller and the second discharging roller can be attached to two sides of the protective pad, and the protective pad can be driven to move by rotating the first discharging roller;

the cleaning assembly comprises a cleaning wheel which is rotatably connected to the case, and the rotating cleaning wheel is used for brushing the protection pad passing between the feeding assembly and the discharging assembly;

and the driving mechanism is used for driving the first feeding roller, the first discharging roller and the cleaning wheel to rotate.

The cleaning machine provided by the embodiment of the invention at least has the following beneficial effects: when wasing the protection and filling up, the protection fills up the accessible entry and gets into quick-witted incasement to can be by feeding subassembly, ejection of compact subassembly transverse transport to the export, wherein, wash the subassembly and can scrub through the protection pad of washing wheel pair between feeding subassembly and ejection of compact subassembly, consequently, no matter be a small amount or a large amount of protection fill up, all can wash through this cleaning machine, can raise the efficiency to a certain extent, and save the human cost.

According to the cleaning machine provided by the embodiment of the invention, the first feeding roller is positioned below the second feeding roller, the first discharging roller is positioned below the second discharging roller, the cleaning wheel is positioned between the first feeding roller and the first discharging roller, and the outer surface of the cleaning wheel is higher than the outer surface of the first feeding roller and the outer surface of the first discharging roller, so that the protective pad can be cleaned from below.

According to the cleaning machine provided by the embodiment of the invention, the first feeding roller comprises a roller shaft and a plurality of rollers arranged along the roller shaft, and accommodating gaps are formed between the adjacent rollers.

According to some embodiments of the present invention, the cleaning machine further includes a first spraying pipe, the first spraying pipe is connected to the chassis and extends along an axial direction of the first feeding roller, the first spraying pipe is located obliquely above the first feeding roller and is not higher than the second feeding roller, and a plurality of liquid outlets are formed in a direction facing a gap between the first feeding roller and the second feeding roller, and the plurality of liquid outlets are arranged along an extending direction of the first spraying pipe.

According to some embodiments of the present invention, the cleaning machine further includes a second spraying pipe, the second spraying pipe is connected to the chassis and extends along the axial direction of the first feeding roller, the second spraying pipe is located above the feeding assembly and the cleaning assembly, a plurality of liquid outlets are formed in a lower half portion of the second spraying pipe, and the plurality of liquid outlets are arranged along the extending direction of the second spraying pipe.

According to the cleaning machine of some embodiments of the invention, the feeding assembly further comprises a first pre-tightening mechanism, the first pre-tightening mechanism is connected to the machine box and the second feeding roller and is used for pressing the second feeding roller towards the first feeding roller;

or the discharging assembly further comprises a second pre-tightening mechanism, the second pre-tightening mechanism is connected to the case and the second discharging roller, and is used for pressing the second discharging roller towards the first discharging roller;

or the feeding assembly further comprises a first pre-tightening mechanism, the discharging assembly further comprises a second pre-tightening mechanism, the first pre-tightening mechanism is connected to the case and the second feeding roller and used for pressing the second feeding roller towards the first feeding roller, and the second pre-tightening mechanism is connected to the case and the second discharging roller and used for pressing the second discharging roller towards the first discharging roller.

According to some embodiments of the invention, the drive mechanism comprises a power element, a first transmission assembly and a second transmission assembly, wherein:

the first transmission assembly is connected to the power element and the wheel shaft of the cleaning wheel, and the power element drives the cleaning wheel to rotate through the first transmission assembly;

the second transmission assembly is connected with the cleaning wheel, the first feeding roller and the first discharging roller, and the cleaning wheel drives the first feeding roller and the first discharging roller to synchronously rotate through the second transmission assembly.

According to the cleaning machine of some embodiments of the present invention, the second transmission assembly includes a first gear, a second gear and a second synchronous belt, the first gear is coaxially connected to the rotating shaft of the cleaning wheel, the second gear is rotatably connected to the chassis through a gear shaft and is engaged with the first gear, and the second synchronous belt is connected to the gear shaft, the first feeding roller and the first discharging roller and is configured to synchronously transmit the rotation of the cleaning wheel to the first feeding roller and the first discharging roller.

According to the cleaning machine of the embodiment of the invention, the teeth of the first gear are smaller than the teeth of the second gear.

According to the washing machine provided by the embodiment of the invention, the washing machine further comprises a frame, the machine box is connected to the frame and arranged above the frame, and the power element is arranged below the machine box.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a cleaning machine according to an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic view of the internal structure of FIG. 1;

FIG. 5 is a right side view of FIG. 2;

FIG. 6 is a left side view of FIG. 2;

fig. 7 is a schematic structural diagram of the first pretensioning mechanism in fig. 6.

Reference numerals:

a housing 100, a cavity 110, an inlet 120, an outlet 130;

the feeding device comprises a feeding assembly 200, a first feeding roller 210, a roller 211, a boss 212, a second feeding roller 220, a first pre-tightening mechanism 230, a connecting strip 231, a connecting sleeve 232, a sliding groove 233 and an elastic member 234;

the cleaning assembly 300, the cleaning wheel 310, the first material blocking piece 320, the first shielding portion 321, the baffle 322, the second shielding portion 323, the hollow portion 324, the second material blocking piece 330, the first spraying pipe 340, the liquid outlet 341 and the second spraying pipe 350;

the discharging assembly 400, the first discharging roller 410, the second discharging roller 420 and the second pre-tightening mechanism 430;

the device comprises a driving mechanism 500, a power element 510, a first transmission assembly 520, a first synchronous belt 521, a second transmission assembly 530, a first gear 531, a second gear 532, a second synchronous belt 533 and a tension pulley 540;

a rack 810.

Detailed Description

The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.

In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.

Fig. 1 is a schematic view of a washing machine according to an embodiment of the present invention, fig. 2 is a front view of fig. 1, fig. 3 is a sectional view taken along a-a of fig. 2, referring to fig. 1 to 3, the washing machine according to the embodiment of the present invention includes a cabinet 100, a feeding assembly 200, a washing assembly 300, a discharging assembly 400, and a driving mechanism 500, wherein the cabinet 100 has a cavity 110 therein, one side of a peripheral wall of the cabinet 100 is provided with an inlet 120, the other side corresponding to the inlet 120 is provided with an outlet 130, the inlet 120 and the outlet 130 are communicated with the cavity 110, the feeding assembly 200, the washing assembly 300, and the discharging assembly 400 are sequentially disposed in the cavity 110 from the inlet 120 to the outlet 130, wherein:

the feeding assembly 200 comprises a first feeding roller 210 and a second feeding roller 220, the first feeding roller 210 and the second feeding roller 220 are rotatably connected to the chassis 100 and are parallel to each other, a gap between the first feeding roller 210 and the second feeding roller 220 corresponds to the inlet 120, the first feeding roller 210 and the second feeding roller 220 can be attached to two sides of a protection pad, the protection pad can be driven to move by rotating the first feeding roller 210, the second feeding roller 220 can synchronously rotate due to the movement of the protection pad, and therefore, the protection pad entering from the inlet 120 can be wound between the first feeding roller 210 and the second feeding roller 220 and can be conveyed towards the outlet 130.

The discharging assembly 400 is used for receiving the protective pad moved out from the feeding assembly 200 and continuously conveying the protective pad to the outlet 130, the discharging assembly 400 comprises a first discharging roller 410 and a second discharging roller 420, the first discharging roller 410 and the second discharging roller 420 are rotatably connected to the case 100 and are parallel to each other, a gap between the first discharging roller 410 and the second discharging roller 420 corresponds to the outlet 130, the first discharging roller 410 and the second discharging roller 420 can be attached to two sides of the protective pad, the protective pad can be driven to move by rotating the first discharging roller 410, the second discharging roller 420 rotates synchronously due to the movement of the protective pad, and therefore the protective pad can be rolled between the first discharging roller 410 and the second discharging roller 420 for discharging.

The cleaning assembly 300 is located between the feeding assembly 200 and the discharging assembly 400, and includes a cleaning wheel 310 rotatably connected to the casing 100, and the rotating cleaning wheel 310 is used for brushing the protection pad passing between the feeding assembly 200 and the discharging assembly 400, so that the protection pad can be cleaned synchronously by the cleaning wheel 310 in the conveying process without manual assistance, and the cleaning efficiency is high. The cleaning wheel 310 can adopt a structure that a brush is planted on the surface, and the brush can scrub the surface of the protective pad when rotating, so that the cleaning wheel has a better cleaning effect.

The driving mechanism 500 is used for driving the first feeding roller 210, the first discharging roller 410 and the cleaning wheel 310 to rotate, therefore, the first feeding roller 210 and the first discharging roller 410 as driving rollers can drive the protective pad to move through friction force, the second feeding roller 220 and the second discharging roller 420 as driven rollers can extrude the protective pad to prevent the driving rollers from slipping, and have a guiding effect, and the driven rollers rotate along with the movement of the protective pad, so that the friction resistance can be reduced.

From the foregoing, when cleaning, the protection pad can enter the chassis 100 through the inlet 120, and can be transversely conveyed to the outlet 130 by the feeding assembly 200 and the discharging assembly 400, wherein the cleaning assembly 300 can be between the feeding assembly 200 and the discharging assembly 400, and the protection pad passing through between the feeding assembly 200 and the discharging assembly 400 is scrubbed through the cleaning wheel 310, so that no matter a small amount or a large amount of protection pads, the cleaning machine of the embodiment can be used for cleaning, the efficiency can be improved to a certain extent, and the labor cost can be saved. And the structure of horizontal overall arrangement can save vertical space, and the business turn over of the protection pad of being convenient for. In addition, during the feeding of protection pad, first feed roller 210 and second feed roller 220 paste and lean on in the both sides of protection pad, and during the ejection of compact, first discharge roller 410 and second discharge roller 420 paste and lean on in the both sides of protection pad, can flatten the protection pad to a certain extent, effectively avoid the fold or the rolling over of protection pad, and the protection pad can keep leveling after wasing.

Referring to fig. 2 to 5, in some embodiments, the first feeding roller 210 includes a roller shaft and a plurality of rollers 211 arranged along the roller shaft, a receiving gap is formed between adjacent rollers 211, the plurality of rollers 211 arranged along the roller shaft can simultaneously act on the surface of the protection pad, the requirement of flatness of the protection pad entering from the inlet 120 can be reduced, and the portions where wrinkles may exist can be better compatible and conveyed, so as to avoid the jamming. Wherein, the surface of each roller 211 may be provided with a convex portion 212 to form a concave-convex surface, for example, the surface of the roller 211 may be provided with a convex diagonal line or convex points to increase the friction force between the roller 211 and the protection pad, thereby increasing the rolling force of the protection pad into the first feeding roller 210 and the second feeding roller 220. Similarly, the surface of the second feed roller 220 may be provided with the protrusions 212 to form a concave-convex surface, so that the rolling force of the protective pad into the first feed roller 210 and the second feed roller 220 can be increased.

Similarly, the first discharge roller 410 and/or the second discharge roller 420 may have a surface with protrusions 212 to form an uneven surface, or may have a friction force with the protective pad increased to increase the winding force.

Referring to fig. 3 and 4, in the above embodiment, the first feed roller 210 is located below the second feed roller 220, the first discharge roller 410 is located below the second discharge roller 420, the cleaning wheel 310 is located between the first feed roller 210 and the first discharge roller 410, and the outer surface of the cleaning wheel 310 is higher than the outer surface of the first feed roller 210 and the outer surface of the first discharge roller 410 for cleaning the protective pad from below, so that the cleaning mechanism of the embodiment can form a compact transverse layout structure, and can save longitudinal space to some extent.

Referring to fig. 3, the cleaning machine of the above embodiment may further include a first spray pipe 340, the first spray pipe 340 is connected to the chassis 100 and extends along the axial direction of the first feeding roller 210, and the first spray pipe 340 is used for spraying a cleaning liquid on the protection pad before passing through the cleaning assembly 300, so as to effectively wash dirt on the surface of the protection pad and assist in brushing the cleaning wheel 310. Specifically, the first spraying pipe 340 is located obliquely above the first feeding roller 210 and is not higher than the second feeding roller 220, and a plurality of liquid outlets 341 are opened towards the gap direction between the first feeding roller 210 and the second feeding roller 220, and the plurality of liquid outlets 341 are arranged along the extending direction of the first spraying pipe 340, so that the plurality of positions of the protective pad can be sprayed.

As a modification of some of the above embodiments, the outlet 341 of the first spray pipe 340 corresponds to the receiving gap between the rollers 211 on the first feeding roller 210, and the receiving gap provides a spraying space for the first spray pipe 340 to spray the cleaning liquid toward the protection pad between the first feeding roller 210 and the second feeding roller 220, so that the cleaning liquid in the first spray pipe 340 can be sprayed into the space between the first feeding roller 210 and the second feeding roller 220 through the receiving gaps, and the longitudinal position of the first spray pipe 340 can be set closer to the first feeding roller 210, thereby saving the longitudinal space of the chassis 100.

Referring to fig. 3 and 4, in the cleaning machine of some embodiments, the cleaning machine further includes a second spray pipe 350, the second spray pipe 350 is connected to the machine case 100 and extends along the axis direction of the first feeding roller, the second spray pipe 350 is located above the feeding assembly 200 and the cleaning assembly 300, a plurality of liquid outlets are formed in the lower half portion of the second spray pipe 350, and the plurality of liquid outlets are arranged along the extending direction of the second spray pipe 350, so that the second spray pipe 350 can spray the cleaning liquid to the protection pad in the cavity 110 and can also spray the internal space of the cavity 110 in the machine case 100, and dust can be effectively reduced.

Fig. 5 is a right side view of fig. 2, fig. 6 is a left side view of fig. 2, and referring to fig. 4 to 6, in the above embodiment, the driving mechanism 500 includes a power element 510, a first transmission assembly 520, and a second transmission assembly 530, wherein:

the first transmission assembly 520 is connected to the power element 510 and the wheel shaft of the cleaning wheel 310, the power element 510 drives the cleaning wheel 310 to rotate through the first transmission assembly 520, the second transmission assembly 530 is connected to the cleaning wheel 310, the first feeding roller 210 and the first discharging roller 410, and the cleaning wheel 310 drives the first feeding roller 210 and the first discharging roller 410 to rotate synchronously through the second transmission assembly 530. Therefore, the power element 510 can simultaneously drive the cleaning wheel 310, the first feeding roller 210 and the first discharging roller 410 to synchronously rotate, and the structure and the layout of a power transmission system are optimized.

The power element 510 may select a motor with a suitable specification according to actual requirements, the first transmission assembly 520 includes a first synchronous belt 521, an output shaft of the motor and a rotating shaft of the cleaning wheel 310 are respectively connected to synchronous belt pulleys, and the first synchronous belt 521 is connected to the output shaft of the motor and the synchronous belt pulley of the rotating shaft of the cleaning wheel 310, so as to transmit the rotation of the motor to the cleaning wheel 310. The second transmission assembly 530 comprises a first gear 531, a second gear 532 and a second synchronous belt 533, wherein the first gear 531 is coaxially connected to a rotating shaft of the cleaning wheel 310, the second gear 532 is meshed with the first gear 531 and is connected to the case 100 through a gear shaft in a rotating manner, a gear shaft of the second gear 532, a roller shaft of the first discharging roller 410, a synchronous pulley is respectively connected to a roller shaft of the first feeding roller 210, the second synchronous belt 533 is connected to a synchronous pulley on the gear shaft, a synchronous pulley on the roller shaft of the first discharging roller 410 and a synchronous pulley on the roller shaft of the first feeding roller 210, so that the rotation of the cleaning wheel 310 can be synchronously transmitted to the first feeding roller 210 and the first discharging roller 410, and the feeding, cleaning and discharging are synchronously performed.

As an improvement of the above embodiment, the number of teeth of the first gear 531 is smaller than that of the second gear 532, so that the second gear 532 forms a speed reduction wheel, and after the speed reduction of the second gear 532, the rotating speed of the cleaning wheel 310 is greater than that of the first feed roller 210 and the first discharge roller 410, so that compared with the case of no speed reduction, the brushing frequency of the cleaning wheel 310 on the protective pad per unit conveying distance of the protective point is increased, and the cleaning force can be enhanced.

As a modification of the above embodiment, the second driving assembly 530 further includes a tension wheel 540, the tension wheel 540 is rotatably connected to the chassis 100 and located above the first gear 531, and is higher than the first feeding roller 210 and the first discharging roller 410, and the second synchronous belt 533 is further connected to the tension wheel 540, so that the tension wheel can tension the second synchronous belt 533, thereby ensuring the driving efficiency of the second synchronous belt 533.

Referring to fig. 5 and 6, in some embodiments, the feeding assembly 200 further includes a first pre-tightening mechanism 230, and the first pre-tightening mechanism 230 is connected to the chassis 100 and the second feeding roller 220, and is used for pressing the second feeding roller 220 toward the first feeding roller 210, so as to ensure smooth transportation of the protection mat. Specifically, the feeding assembly 200 includes a pair of first pre-tightening mechanisms 230, the first pre-tightening mechanisms 230 are connected to the chassis 100 and respectively connected to two ends of the second feeding roller 220, and the pair of first pre-tightening mechanisms 230 are configured to simultaneously press the second feeding roller 220 toward the first feeding roller 210, so as to achieve a pre-tightening effect.

Fig. 7 is a schematic structural diagram of the first pre-tightening mechanism 230 in fig. 6, referring to fig. 6 and 7, the first pre-tightening mechanism 230 includes a connecting bar 231, a connecting sleeve 232, and an elastic member 234, the connecting sleeve 232 is internally provided with a sliding slot 233 for the connecting bar 231 to slide, the elastic member 234 is arranged in the sliding slot 233, one end of the connecting bar 231 is connected to the rotating shaft of the first feed roller 210, the other end of the connecting bar 231 is located in the sliding slot 233 and connected to the elastic member 234, and the elastic member 234 has a force pushing the connecting bar 231 towards the first feed roller 210, for example, the elastic member 234 may be a compression spring, and the elastic force of the compression spring can push the connecting bar 231 towards the first feed roller 210, thereby achieving pre-tightening of the second feed roller 220 and the first feed roller 210. The sliding groove 233 can be provided with a trapezoidal cross section, and correspondingly, the connecting bar 231 is also provided with a trapezoidal cross section matched with the sliding groove 233, so that the moving direction of the connecting bar 231 is limited to be only one direction, and the reliability of the mechanism and the effectiveness of pre-tightening are ensured.

Referring to fig. 5 and 6, the discharging assembly 400 may also be provided with a pre-tightening mechanism similar to the above-mentioned embodiment, for example, in some embodiments, the second discharging roller 420 is connected with a second pre-tightening mechanism 430, and the second pre-tightening mechanism 430 is further connected to the case 100 for pressing the second discharging roller 420 towards the first discharging roller 410, so as to ensure the smooth transportation of the protection pad. Specifically, the discharging assembly 400 includes a pair of second pre-tightening mechanisms 430, the second pre-tightening mechanisms 430 are connected to the chassis 100 and respectively connected to two ends of the second discharging roller 420, and the pair of second pre-tightening mechanisms 430 are configured to simultaneously press the second discharging roller 420 towards the first discharging roller 410, so as to achieve a pre-tightening effect. The specific structure of the second pre-tightening mechanism 430 may be the same as that of the first pre-tightening mechanism 230, and is not described herein again.

Or in some embodiments, the feeding assembly 200 and the discharging assembly 400 are both provided with a pre-tightening mechanism, wherein the feeding assembly 200 includes the first pre-tightening mechanism 230, the discharging assembly 400 includes the second pre-tightening mechanism 430, the first pre-tightening mechanism 230 is connected to the chassis 100 and the second feeding roller 220 and is used for pressing the second feeding roller 220 towards the first feeding roller 210, and the second pre-tightening mechanism 430 is connected to the chassis 100 and the second discharging roller 420 and is used for pressing the second discharging roller 420 towards the first discharging roller 410, thereby ensuring that both the feeding assembly 200 and the discharging assembly 400 can smoothly convey the protection pad.

Referring to fig. 1 to 6, the washing machine of the above embodiment may further include a frame 810, the housing 100 may be disposed above the frame 810, and the power unit 510 may be disposed below the housing 100, thereby effectively utilizing the longitudinal space.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.