Cleaning tool

Abstract

The utility model discloses a cleaning tool which comprises a mopping head shell, an extrusion roller, a cleaning roller and a decontamination assembly, wherein the extrusion roller, the cleaning roller and the decontamination assembly are arranged in the mopping head shell. The cleaning roller is rotationally arranged at the right end of the mop head shell; the extrusion roller abuts against the upper portion of the cleaning roller and is in interference fit with the cleaning roller, and the extrusion roller is eccentrically arranged leftwards relative to the cleaning roller. The decontamination assembly is arranged on the left side of the extrusion roller, the bottom end of the decontamination assembly abuts against the cleaning roller, the free end of the decontamination assembly abuts against the extrusion roller, and a closed water tank space is defined by the decontamination assembly, the extrusion roller and the cleaning roller; after the squeezing roller squeezes the cleaning roller, the flowing-out sewage can be contained in the closed water tank space. When the cleaning roller is in an unsaturated state, a gap is possibly formed between the extrusion roller and the cleaning roller, and seeping sewage flows down from the cleaning roller or flows into the closed water tank space under the action of gravity, so that the situation that the cleanliness is affected due to the fact that the sewage drips on the surface to be cleaned is avoided.

Description

Technical Field

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

[0002] In the early days, the floor cleaning tools used by people were brooms, mops, floor scrubbers, etc. These tools mainly relied on manual operation by people to complete the cleaning work. With the progress of technology, people's requirements for floor cleaning tools have gradually increased. First, vacuum cleaners appeared, which rely on electric power supply and generate negative pressure to suck up garbage, dust, etc. on the ground. Classified from the cleaning means and the flow path of small particle garbage and large particle garbage, this type of technology is usually classified as the air-dust circulation technology. However, due to the limitations of its working principle, the vacuum cleaner cannot clean some garbage and stains firmly attached to the ground. Therefore, a new "water-dust circulation" floor washer appeared. The operation of the motor drives the cleaning cylinder to wipe the ground. At the same time, a water supply system and a water tank are also equipped in the floor cleaner to clean the cleaning cylinder, thus perfectly realizing the cleaning of the ground.

[0003] The Chinese utility model patent CN212326298U of the applicant discloses a cleaning tool, which includes a cleaning head. The cleaning head includes: a cleaning module, including a roller and a squeezing roller arranged above the upper right of the roller. Among them, the right side area of the roller is the area to be cleaned, that is, the squeezing roller is arranged above the surface of the area to be cleaned; the squeezing roller interferes with the roller, and the squeezing roller and the roller form a water tank; a housing, including a side housing, provided with a first sewage box; the roller and the squeezing roller are respectively installed on the side housing, the first sewage box is connected to the water tank, and a filter screen and a brush are arranged in the first sewage box, and the brush is used to clean the garbage on the surface of the filter screen. The bottom end of the squeezing roller interferes with the sponge layer of the roller, that is, the bottom end of the squeezing roller will squeeze the sponge layer, and the squeezing roller and the roller form a water tank A. The rotary brush is located between the roller and the garbage box and is used to clean the garbage on the surface of the roller. Through "water-dust circulation", the self-cleaning of the roller can be realized, and the surface of the area to be cleaned can be continuously wiped, with good cleaning effect and high working efficiency. Summary of the Utility Model

[0004] The present application provides a cleaning tool, which can avoid the sewage in the water tank in the prior art from flowing to the ground and destroying the cleanliness while realizing "water-dust circulation". The specific technical solutions are as follows:

[0005] A cleaning tool includes a mop head housing and a squeezing roller, a cleaning roller and a decontamination component arranged in the mop head housing;

[0006] The cleaning roller is rotatably arranged at the right end of the mop head housing;

[0007] The squeezing roller abuts above the cleaning roller, is in interference fit with the cleaning roller, and is eccentrically arranged to the left relative to the cleaning roller;

[0008] The decontamination component is arranged on the left side of the squeezing roller. The bottom end of the decontamination component abuts against the cleaning roller, and the free end of the decontamination component abuts against the squeezing roller. The decontamination component, the squeezing roller and the cleaning roller enclose a closed water tank space;

[0009] After the squeezing roller squeezes the cleaning roller, the discharged sewage can be accommodated in the closed water tank space.

[0010] In one or some alternative embodiments, the central axis of the squeezing roller deviates from the central axis of the cleaning roller by 1° - 5° in the vertical direction.

[0011] In one or some alternative embodiments, the decontamination component includes a decontamination member, a partition member and a fixing member;

[0012] The fixing member is connected to the mop head housing;

[0013] Both the partition member and the decontamination member are connected to the fixing member;

[0014] The bottom end of the partition member abuts against the cleaning roller, and the free end of the decontamination member abuts against the squeezing roller.

[0015] In one or some alternative embodiments, a contact strip is provided at the free end of the decontamination member, and the contact strip abuts against the squeezing roller to clean the surface of the squeezing roller.

[0016] In one or some alternative embodiments, it further includes a brush arranged in the mop head housing, a driving motor connected to the cleaning roller, and a transmission mechanism connected to the driving motor;

[0017] The transmission mechanism is in transmission connection with the brush and the squeezing roller; the brush is in interference fit with the cleaning roller;

[0018] The driving motor can drive the transmission mechanism to simultaneously drive the brush, the squeezing roller and the cleaning roller to rotate.

[0019] In one or some alternative embodiments, a terminal torsion assembly is provided at one end of the driving motor;

[0020] The transmission mechanism includes a driving wheel clamped with the terminal torsion assembly and a first driven wheel set meshing with the driving wheel;

[0021] The first driven wheel set includes a first driven wheel, the first driven wheel meshes with the driving wheel and is connected to the brush;

[0022] Or,

[0023] The first driven wheel set includes at least two first driven wheels arranged in sequence, wherein two adjacent first driven wheels mesh with each other, and the first driven wheel at the head end meshes with the driving wheel, and the first driven wheel at the tail end is connected to the brush.

[0024] In one or some alternative embodiments, the transmission mechanism further includes a second driven wheel set;

[0025] The second driven wheel set includes a second driven wheel, and the second driven wheel meshes with the driving wheel and is connected to the extrusion roller;

[0026] Or,

[0027] The second driven wheel set includes at least two second driven wheels arranged in sequence, wherein two adjacent first driven wheels mesh with each other, and the second driven wheel at the head end meshes with the driving wheel, and the second driven wheel at the tail end is connected to the extrusion roller.

[0028] In one or some alternative embodiments, it further includes a garbage box disposed in the towing head housing;

[0029] The garbage box is disposed below the brush and is used to accommodate the garbage generated after the brush cleans the surface of the cleaning roller.

[0030] In one or some alternative embodiments, it further includes a detachable shovel strip disposed between the garbage box and the cleaning roller;

[0031] The right side surface of the detachable shovel strip is arc-shaped and abuts against the surface of the cleaning roller.

[0032] In one or some alternative embodiments, it further includes a garbage guide disposed between the detachable shovel strip and the garbage box;

[0033] The upper surface of the garbage guide or the garbage guide and the detachable shovel strip forms an inclined garbage guide area;

[0034] The garbage guide area is disposed below the brush and communicates with the garbage box.

[0035] In one or some alternative embodiments, the extrusion roller includes an extrusion roller body, a bearing and an elastic support shaft disposed at one end of the extrusion roller body;

[0036] The extrusion roller body is provided with an inner cavity;

[0037] The bearing is disposed at the opening of the inner cavity;

[0038] The elastic support shaft includes a locking member and a spring;

[0039] Part of the locking member is limited by the bearing in the inner cavity, and the locking member is elastically connected to the inner wall of the inner cavity through the spring;

[0040] The locking member extending out of the inner cavity can be locked with the tractor head housing.

[0041] In summary, the beneficial effects of this solution are:

[0042] This application provides a cleaning tool. By providing a cleaning roller, a squeezing roller and a decontamination component, and enclosing them to form a closed water tank space, and making the squeezing roller and the cleaning roller form an interference fit, the squeezing roller can squeeze the cleaning roller to squeeze out the sewage absorbed in the cleaning roller and accommodate it in the closed water tank space. Since the squeezing roller is arranged at an eccentric left position of the cleaning roller and the closed water tank space is located above the left of the cleaning roller, when the cleaning roller is in a non-saturated state, a gap may be formed between the squeezing roller and the cleaning roller, and the seeping sewage flows down from the cleaning roller or flows into the closed water tank space under the action of gravity, avoiding dripping on the surface to be cleaned and affecting the cleanliness. Description of the Drawings

[0043] Figure 1 Is a perspective view of the cleaning tool provided by the present utility model;

[0044] Figure 2 Is Figure 1 The sectional view taken along the direction A in

[0045] Figure 3 Is Figure 1 Part of the perspective view in

[0046] Figure 4 Is Figure 1 The partial enlarged view at B in

[0047] Figure 5 Is Figure 2 The partial enlarged view at C in

[0048] Figure 6 Is the exploded view of the cleaning tool provided by the present utility model;

[0049] Figure 7 Is the exploded view of the cleaning tool provided by the present utility model from another perspective;

[0050] Figure 8 Is the perspective view of the decontamination component provided by the present utility model;

[0051] Figure 9 Is the perspective view of the decontamination component provided by the present utility model;

[0052] Figure 10 A perspective view of the decontamination component provided by the present utility model from another angle;

[0053] Figure 11 A perspective view of the extrusion roller provided by the present utility model;

[0054] Figure 12 is Figure 11 the sectional view taken along the direction D in

[0055] Figure 13 An exploded view of the extrusion roller provided by the present utility model;

[0056] Figure 14 A schematic diagram of a comparative example of the installation position of the extrusion roller body provided by the present utility model;

[0057] Explanation of reference numerals:

[0058] 1. Tractor head housing;

[0059] 2. Extrusion roller;

[0060] 21. Extrusion roller body;

[0061] 22. Bearing;

[0062] 23. Elastic support shaft; 231. Locking member; 232. Spring;

[0063] 24. Gear connection part; 241. Fixed part; 242. Connection part;

[0064] 3. Cleaning roller; 31. Cleaning roller body; 32. End torsion assembly;

[0065] 4. Decontamination component; 41. Decontamination member; 42. Partition member; 43. Fixing member;

[0066] 5. Brush;

[0067] 6. Gear set; 61. Driving wheel; 62. First driven wheel set; 63. Second driven wheel set;

[0068] 7. Removable scraper bar;

[0069] 8. Garbage guide;

[0070] 9. Garbage box;

[0071] 10. Water tank;

[0072] 11. Driving motor;

[0073] A. Enclosed water tank space. Detailed implementation manners

[0074] The following further elaborates on the claims of the present utility model in conjunction with specific embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts also fall within the scope of protection of the present utility model.

[0075] It should be understood that in the description of the embodiments of the present utility model, all terms indicating directions, such as "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings or the orientation and positional relationship in which the utility model product is usually placed during use. This is only for the convenience of simplifying the description of the present utility model, rather than explicitly or implicitly indicating that the device, element or component must have a specific orientation and a specific orientation structure. It should not be construed as a limitation of the present utility model. It is only used to explain the relative positional relationship and movement situation between various components shown in the drawings. When this specific posture changes, the directional indication may also change accordingly.

[0076] In addition, the ordinal numbers in the present utility model, such as "first", "second", etc., are only used for distinguishing purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the technical features indicated. Thus, the features defined by "first" and "second" can explicitly or implicitly include at least one of such technical features. In the description of the present utility model, the meaning of "a plurality" is at least two, that is, two or more, unless otherwise clearly defined; the meaning of "at least one" is one or more than one.

[0077] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be either that the positional relationship between components is relatively fixed, or that there is a physically fixed connection between components. It can be either a detachable connection or an integral structure; it can be either a mechanical connection or an electrical signal connection; it can be either directly connected or indirectly connected through an intermediate medium or component; it can be either the communication inside two elements or the interaction relationship between two elements. Unless the specification clearly limits otherwise, when other understandings cannot achieve the corresponding functions or effects, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0078] The following further illustrates the present utility model in conjunction with specific embodiments, but it is not a limitation of the present utility model.

[0079] The inventor found that in existing patents, such as a cleaning tool disclosed in CN212326298U, by utilizing "water-dust circulation", continuous scrubbing of the surface of the area to be cleaned can be achieved. However, in actual use, due to the interference between the bottom end of the extrusion roller and the sponge layer of the roller, the bottom end of the extrusion roller will squeeze the sponge layer, forming a water tank on one side of the extrusion roller and the roller. That is, a part of the bottom of the water tank is itself the absorbent sponge layer of the roller. Only when the sponge layer of the roller reaches the saturation state can the bottom of the water tank always remain closed. As long as the sponge layer is in the non-saturated state, the bottom of the water tank will seep water towards the surface of the cleaning area, destroying the cleanliness of the cleaning area.

[0080] Based on this, through further research and development, the inventor proposed a cleaning tool to solve the above problems.

[0081] Refer to Figures 1 - 13 , this embodiment provides a cleaning tool, which includes a mop head housing 1 and an extrusion roller 2, a cleaning roller 3 and a decontamination component 4 arranged in the mop head housing 1. A cleaning roller 3 is rotatably provided at the right end of the mop head housing 1, and the cleaning roller 3 can be detachably connected to the mop head housing 1 for easy maintenance or installation.

[0082] Specifically, as Figure 1 , Figure 2 , Figure 5 , Figure 6 shown, the extrusion roller 2 is arranged above the cleaning roller 3 and abuts against it, and an interference fit is formed, so that the extrusion roller 2 can exert pressure on the cleaning roller 3. The extrusion roller 2 is eccentrically arranged to the left relative to the cleaning roller 3, that is, the extrusion roller 2 is located at the upper left of the cleaning roller 3. The decontamination component 4 is arranged on the left side of the extrusion roller 2. The bottom end of the decontamination component 4 abuts against the cleaning roller 3, and the free end of the decontamination component 4 abuts against the extrusion roller 2. The decontamination component 4, the extrusion roller 2 and the cleaning roller 3 enclose a closed water tank space A.

[0083] It should be noted that in this embodiment, refer to Figure 1 , the traveling direction of the cleaning tool is the rightward direction in the figure. The garbage referred to in this embodiment includes dry garbage, wet garbage and other garbage. Specifically, dry garbage refers to non-liquid garbage, such as fruit peels, melon seeds, rice grains, paper pieces, etc. Wet garbage is liquid garbage, such as water, beverages, etc. Viscous wet garbage includes semi-solid garbage with a certain viscosity, such as soup, gruel, porridge, tomato sauce, chocolate sauce, etc. Other garbage also includes dust, floor marks, etc., which are also the cleaning objects of this embodiment.

[0084] Refer to Figure 7, the cleaning roller 3 includes a cleaning roller body 31. A sponge layer in the conventional technology is provided on the surface of the cleaning roller body 31, which can be used to absorb garbage. A rotating shaft (not shown in the figure) is provided inside the cleaning roller body 31. The driving motor 11 drives the rotating shaft to rotate, thereby realizing the rotation of the cleaning roller body 31. The driving motor 11 can be arranged inside the cleaning roller body 31 and is coupled to the rotating shaft to drive the cleaning roller body 31 to rotate, which can save space and reduce the volume of the cleaning tool.

[0085] A power mechanism can be arranged in the mop head housing 1 to make the squeezing roller 2 rotate, or no power mechanism is arranged, and the squeezing roller 2 rotates by itself relying on the frictional force of the cleaning roller body 31. When a power mechanism is arranged, in the first case, the squeezing roller 2 rotates in the same direction as the cleaning roller body 31. When the linear velocity of the elastic contact point between the surface of the squeezing roller 2 and the surface of the cleaning roller body 31 is less than the linear velocity of the elastic contact point between the surface of the cleaning roller body 31 and the surface of the squeezing roller 2, compared with the case where the squeezing roller 2 does not rotate, the water squeezing effect is better. In the second case, the squeezing roller 2 rotates in the same direction as the cleaning roller body 31, and the linear velocity of the elastic contact point between the surface of the squeezing roller 2 and the surface of the cleaning roller body 31 is greater than the linear velocity of the elastic contact point between the surface of the cleaning roller body 31 and the surface of the squeezing roller 2. Compared with the first case, the water squeezing effect is better. In the third case, the rotation direction of the squeezing roller 2 is opposite to the rotation direction of the cleaning roller body 31. Compared with the first case and the second case, this saves the most power, has no noise, and has a better water squeezing effect.

[0086] During use, refer to Figure 5 , the cleaning roller body 31 rotates clockwise and rolls on the surface to be cleaned (not shown in the figure). Since the sponge layer of the cleaning roller body 31 contains an appropriate amount of clean water, it can absorb the garbage on the surface to be cleaned. The garbage and the clean water are mixed to form sewage. When the area where the cleaning roller body 31 absorbs garbage rotates to the squeezing roller 2, after the squeezing roller 2 squeezes it, all the sewage in the sponge layer of the cleaning roller body 31 is squeezed out, and the flowing sewage can be accommodated in the closed water tank space A. When the sponge layer of the cleaning roller body 31 is in an unsaturated state, a gap may be formed between the bottom end of the decontamination component 4 and the cleaning roller body 31, resulting in the closed water tank space A being in an unclosed state, and water seepage may occur. However, since the closed water tank space A is arranged above the left of the cleaning roller body 31, the seeping sewage will drip on the left cleaning roller or into the mop head housing 1, and will not directly drip on the surface to be cleaned as in the prior art, so as to affect the cleanliness.

[0087] Moreover, when the sponge layer of the cleaning roller body 31 is in an unsaturated state, a gap may form between the squeezing roller 2 and the cleaning roller body 31. Since the closed water tank space A is arranged at the upper left of the cleaning roller body 31, the seeping sewage will flow out along the cleaning roller body 31 from the left side under the action of gravity and drip into the mop head housing 1 or flow into the closed water tank space A, rather than dripping onto the surface to be cleaned, thus affecting the cleaning degree.

[0088] In a specific embodiment, refer to Figure 11 、 Figure 12 and Figure 13 , the squeezing roller 2 includes a squeezing roller body 21, a bearing 22 and an elastic support shaft 23 arranged at one end of the squeezing roller body 21. A cavity (not marked in the figure) is arranged in the squeezing roller body 21. The bearing 22 covers the opening of the cavity, and the bearing 22 can be threadedly connected to the squeezing roller body 21. The elastic support shaft 23 includes a locking member 231 and a spring 232. Part of the locking member 231 is limited in the cavity by the bearing 22. The locking member 231 is elastically connected to the inner wall of the cavity through the spring 232. The locking member 231 extending out of the cavity can be locked with the mop head housing 1 (not shown in the figure). During use, when pressing the squeezing roller body 21, the spring 232 compresses and drives the locking member 231 to move towards the cavity direction, and unlocks with the mop head housing 1, so that the squeezing roller body 21 can be easily taken out of the mop head housing 1.

[0089] In a specific embodiment, refer to Figure 5 , the central axis of the squeezing roller body 21 deviates from the central axis of the cleaning roller body 31 by 1° - 5° in the vertical direction, that is, Figure 5 the angle range of θ in Figure 14, relative to the contact point of the cleaning roller body 31 and the surface to be cleaned as N, and the highest point of the cleaning roller body 31 as P. When the angle of θ exceeds 5°, there is still a small amount of uncleaned water on the right side area from point M to point N on the cleaning roller body 31. Due to the gravitational force, the clear water between point M and point P causes an excessive accumulation of clear water in the wedge-shaped space (not shown in the figure) formed by the surface of the extrusion roller body 21 and the surface of the cleaning roller body 31. This part of the cleaning roller body 31 soaked by the clear water accumulated in the wedge-shaped space is in a supersaturated state in terms of its water absorption capacity. When it continues to rotate clockwise to point N to clean the surface to be cleaned, water stains will be generated, and even water accumulation will be formed on the surface to be cleaned, resulting in slipperiness, posing a certain safety hazard, and failing to meet the cleaning degree requirements.

[0090] The applicant has conducted experiments. As Figure 5 shown, when the cleaning roller body 31 rotates at an angular velocity of 60 RPM (revolutions per minute), under the action of inertia, when the angle of θ is 1°, the sewage extruded by the extrusion roller body 21 at point M on the cleaning roller body 31 can just flow out along the surface of the cleaning roller body 31 in a supersaturated state under the action of gravity. At this time, there is no excessive clear water in the wedge-shaped space formed by the surface of the extrusion roller body 21 and the surface of the cleaning roller body 31; when the angle of θ is 5°, more sewage extruded by the extrusion roller body 21 at point M on the cleaning roller body 31 can flow out along the surface of the cleaning roller body 31 in a supersaturated state under the action of gravity. At this time, clear water just begins to precipitate in the wedge-shaped space formed by the surface of the extrusion roller body 21 and the surface of the cleaning roller body 31. That is to say, the cleaning roller body 31 near point M is in a supersaturated state. When it continues to rotate clockwise to point N to clean the surface to be cleaned, water stains will be generated, and even water accumulation will be formed on the surface to be cleaned. Of course, when the cleaning roller body 31 rotates at a higher speed, the extruded sewage is more likely to form a "water film" on the surface of the cleaning roller body 31 due to the action of inertia.

[0091] When the cleaning roller body 31 rotates at an angular velocity of 150 RPM (revolutions per minute), due to inertia, when the angle of θ is 1°, the sewage squeezed out by the squeezing roller body 21 at point M of the cleaning roller body 31 can just flow out along the surface of the cleaning roller body 31 in a supersaturated state under the action of gravity. At this time, there is no excessive clear water in the wedge-shaped space jointly formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31; when the angle of θ is 5°, more sewage squeezed out by the squeezing roller body 21 at point M of the cleaning roller body 31 can flow out along the surface of the cleaning roller body 31 in a supersaturated state under the action of gravity. At this time, clear water just begins to precipitate in the wedge-shaped space jointly formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31. That is to say, the cleaning roller body 31 near point M is in a supersaturated state. When it continues to rotate clockwise to point N to clean the surface to be cleaned, water stains will be generated, and even water accumulation will be formed on the surface to be cleaned.

[0092] In a specific embodiment, refer to Figure 2 、 Figure 5 、 Figures 7 - 10 , the decontamination component 4 includes a decontamination member 41, a partition member 42 and a fixing member 43. The fixing member 43 is connected to the mop head housing 1, and a detachable connection method can be adopted, such as threaded connection, snap connection, etc., which is convenient for installation and maintenance. Both the partition member 42 and the decontamination member 41 are connected to the fixing member 43. Specifically, a plurality of T-shaped installation grooves (not marked in the figure) can be provided on the fixing member 43, and T-shaped installation bars are fixed on the partition member 42 and the decontamination member 41. By engaging the T-shaped installation bars with the T-shaped installation grooves, the partition member 42 and the decontamination member 41 are connected to the fixing member 43, which is convenient for installation and disassembly. The bottom end of the partition member 42 abuts against the cleaning roller body 31. In order to make it fit completely with the cleaning roller body 31, the end face of the bottom end of the partition member 42 can be set as an arc matching the surface of the cleaning roller body 31. The free end of the decontamination member 41 abuts against the squeezing roller body 21. Of course, the T-shaped installation groove can also be other groove shapes such as trapezoidal and dovetail-shaped that can achieve one-way sliding, and the T-shaped installation bar can also be other bar shapes such as trapezoidal and dovetail-shaped that can achieve one-way sliding, which will not be elaborated here one by one.

[0093] In a specific embodiment, refer to Figure 5 、 Figure 8 、 Figure 10, a contact strip (not shown in the figure) is provided at the free end of the decontamination member 41. The contact strip abuts against the extrusion roller body 21 to clean the surface of the extrusion roller body 21. When cleaning with the cleaning roller body 31, some small-sized garbage such as hair will adhere to the cleaning roller body 31 until the cleaning roller body 31 rotates to contact the extrusion roller body 21. The extrusion roller body 21 peels off these small particle garbage from the cleaning roller body 31. Part of it enters the closed water tank space A, and the other part may adhere to the surface of the extrusion roller body 21. As the extrusion roller body 21 rotates to contact the contact strip, the contact strip peels off this garbage from the extrusion roller body 21.

[0094] Furthermore, the surface of the extrusion roller body 21 is a flexible sponge layer. The material of the contact strip is preferably a rigid material, so that the contact strip can scrape the extrusion roller body 21, and the cleaning effect is better. To facilitate the cleaning of the garbage, except that the material of the contact strip is a rigid material, the material of the rest of the decontamination member 41 can be set as a flexible material and has a certain elasticity. When it is necessary to clean the garbage peeled off by the contact strip, the decontamination member 41 can be directly toggled to make the contact strip away from the extrusion roller body 21, and then the cleaning can be carried out, which is convenient and fast.

[0095] Both the Chinese utility model patents CN211834240U and CN211834241U of the present applicant disclose that: the extrusion roller is rotatably fixed on the housing of the cleaning head. The extrusion roller can be equipped with a power mechanism to actively squeeze water. A first motor can be fixed on the housing of the cleaning head. The first motor is connected to the extrusion roller to drive the extrusion roller to rotate, so that the water squeezing effect on the roller is better. At the same time, another driving motor is required to drive the roller to rotate. Although the purpose of the rotation of the extrusion roller can be achieved by setting the first motor, the first motor will occupy the housing space, increase the housing weight, and also increase the cost.

[0096] To solve the above problems, refer to Figure 4 and Figure 7 , only one driving motor 11 is arranged in the towing head housing 1 and connected to the cleaning roller body 31, and a transmission mechanism connected to the driving motor 11 is arranged. The transmission mechanism is in transmission connection with the extrusion roller body 21. Here, the transmission mechanism can be a gear transmission mechanism, a chain transmission mechanism, etc. in the conventional technology. When the driving motor 11 drives the cleaning roller body 31 to rotate, it can drive the transmission mechanism to drive the cleaning roller body 31 and the extrusion roller body 21 to rotate simultaneously, so as to achieve the purpose of reducing the weight of the cleaning tool and saving costs.

[0097] In a specific embodiment, a brush 5 and a garbage box 9 provided below the brush 5 are arranged in the towing head housing 1. Refer to Figure 5, the brush 5 is specifically arranged on the left side of the cleaning roller body 31. The brush 5 is in abutting connection with the cleaning roller body 31 to form an interference fit for cleaning the surface of the cleaning roller body 31. During use, the cleaning roller body 31 rolls on the surface to be cleaned. Since a flexible sponge layer is arranged on the surface of the cleaning roller body 31, the garbage on the surface to be cleaned compresses and deforms the sponge layer. The sponge layer wraps the garbage through deformation, separating the garbage from the surface to be cleaned and rotating together with the cleaning roller body 31. When the garbage leaves the surface to be cleaned and the cleaning roller body 31 rotates to contact the brush 5, the brush 5 brushes the cleaning roller body 31 to clean the garbage wrapped by the cleaning roller body 31, ensuring the cleanliness of the cleaning roller body 31. The garbage brushed off falls into the garbage box 9 under the action of gravity. The garbage box 9 collects this garbage, preventing the garbage from scattering around in the mop head housing 1 and affecting the normal operation of other components, and also facilitating the user to clean the garbage. Similarly, to make the brush 5 rotate, the brush 5 is in transmission connection with the transmission mechanism. When the driving motor 11 rotates, it can drive the transmission mechanism to drive the brush 5 to rotate.

[0098] In a specific embodiment, refer to Figure 4 and Figure 7 , one end of the driving motor 11 is provided with an end torsion assembly 32. The transmission mechanism is a gear set 6. The gear set 6 includes a driving wheel 61 clamped with the end torsion assembly 32 and a first driven wheel set 62 meshing with the driving wheel 61. The first driven wheel set 62 includes a first driven wheel (not marked in the figure). The first driven wheel meshes with the driving wheel 61 and is connected to the brush 5. During use, when the driving motor 11 rotates, it can drive the cleaning roller body 31 to rotate while driving the driving wheel 61 to rotate. The driving wheel 61 drives the first driven wheel to rotate, and the first driven wheel drives the brush 5 to rotate, so that the brush 5 can rotate to clean the surface of the cleaning roller body 31.

[0099] In another embodiment, refer to Figure 4 and Figure 7 , the gear set 6 includes a driving wheel 61 clamped with the end torsion assembly 32 and a first driven wheel set 62 meshing with the driving wheel 61. The first driven wheel set 62 includes at least two first driven wheels arranged in sequence. Among them, two adjacent first driven wheels mesh with each other, the first driven wheel at the head end meshes with the driving wheel 61, and the first driven wheel at the tail end is connected to the brush 5. The advantage of arranging multiple first driven wheels is that the transmission ratio can be increased by sequentially increasing the number of teeth of each first driven wheel, so that the rotation speed of the brush 5 is greater than that of the cleaning roller body 31. The brush 5 can clean the cleaning roller body 31 at a faster frequency, achieving a better cleaning effect and further ensuring the cleanliness of the cleaning roller body 31.

[0100] Specifically, refer to Figure 4 and Figure 7, an embodiment is provided in which the first driven wheel set 62 includes two first driven wheels. In Figure 4 and Figure 7 , the first driven wheel on the right side meshes with the driving wheel 61, the first driven wheel on the left side is connected to the brush 5, and the number of teeth of the first driven wheel on the left side is more than that of the first driven wheel on the right side, which can increase the transmission ratio to increase the rotation speed of the brush 5 and ensure the cleanliness of the cleaning roller body 31. At the same time, from the analysis of the rotation direction, the driving wheel 61 rotates clockwise together with the driving motor 11, the first driven wheel on the right side rotates counterclockwise, and the first driven wheel on the left side drives the brush 5 to rotate clockwise. Therefore, when the number of first driven wheels is at least two, the number is preferably an even number, so that the rotation direction of the brush 5 is clockwise. Refer to Figure 5 , since the brush 5 rotates clockwise, when the brush 5 cleans the cleaning roller body 31, the brush 5 will provide a downward pushing force to the garbage to be cleaned so that the garbage enters the garbage box 9.

[0101] In a specific embodiment, refer to Figure 4 and Figure 7 , the gear set 6 further includes a second driven wheel set 63. The second driven wheel set 63 includes a second driven wheel (not marked in the figure). The second driven wheel meshes with the driving wheel 61 and is connected to the extrusion roller body 21. Specifically, refer to Figure 12 and Figure 13 , a gear connection portion 24 is provided at the other end of the extrusion roller body 21 relative to the bearing 22 and the elastic support shaft 23. The gear connection portion 24 includes a fixing portion 241 connected to the extrusion roller body 21 and a connection portion 242 connected to the fixing portion 241. The connection portion 241 is connected to the second driven wheel. When in use, when the driving motor 11 rotates, it can drive the cleaning roller body 31 to rotate while driving the driving wheel 61 to rotate. The driving wheel 61 drives the second driven wheel to rotate, and the second driven wheel drives the extrusion roller body 21 to rotate to clean the surface of the cleaning roller body 31. At the same time, from the analysis of the rotation angle, the driving wheel 61 and the cleaning roller body 31 both rotate clockwise. The second driven wheel meshing with the driving wheel 61 drives the extrusion roller body 21 to rotate counterclockwise, which conforms to the aforementioned third case, so it saves the most power, has no noise, and has a better water squeezing effect.

[0102] In another embodiment, refer to Figure 4 and Figure 7 , the gear set 6 further includes a second driven wheel set 63. The second driven wheel set 63 includes at least two second driven wheels arranged in sequence. Among them, two adjacent first driven wheels mesh with each other, the second driven wheel at the head end meshes with the driving wheel 61, and the second driven wheel at the tail end is connected to the extrusion roller body 21.

[0103] Specifically, refer toFigure 4 and Figure 7 An embodiment is provided in which the second driven wheel set 63 includes three second driven wheels. The second driven wheel located on the far right meshes with the driving wheel 61. The second driven wheel located on the far left is connected to the extrusion roller body 21, and another second driven wheel meshes between the two. Analyzing from the perspective of rotation, both the driving wheel 61 and the cleaning roller body 31 rotate clockwise. The second driven wheel located on the far right rotates counterclockwise. The second driven wheel in the middle rotates clockwise. The second driven wheel located on the far left drives the extrusion roller body 21 to rotate counterclockwise, which conforms to the aforementioned third situation. In this way, the power is saved the most, there is no noise, and the water squeezing effect is better. Therefore, when the number of second driven wheels is at least two, the number is preferably odd, so that the rotation direction of the extrusion roller body 21 is counterclockwise. At the same time, the transmission ratio can be increased by sequentially increasing the number of teeth of the second driven wheels, so as to achieve the purpose of increasing the rotation speed of the extrusion roller body 21 and improving the water squeezing effect on the cleaning roller body 31.

[0104] In a specific embodiment, referring to Figure 5 , the cleaning device further includes a detachable scraper strip 7 disposed between the garbage box 9 and the cleaning roller body 31. The right side surface of the detachable scraper strip 7 is arc-shaped, which matches the surface of the cleaning roller body 31 and abuts against it. During use, the cleaning roller body 31 rolls on the surface to be cleaned. The sponge layer of the cleaning roller body 31 wraps garbage. The garbage leaves the surface to be cleaned and is squeezed by the detachable scraper strip 7, and then continues to rotate with the cleaning roller body 31. The detachable scraper strip 7 can prevent the garbage from falling off the cleaning roller body 31 under the action of gravity and falling back onto the surface to be cleaned, reducing the cleaning efficiency. Then, when it rotates to the brush 5, the garbage is brushed off into the garbage box 9.

[0105] In a specific embodiment, referring to Figure 5 , the cleaning device further includes a garbage guide member 8 disposed between the detachable scraper strip 7 and the garbage box 9. The upper surface of the garbage guide member 8 or the garbage guide member 8 and the detachable scraper strip 7 forms an inclined garbage guide area (not marked in the figure), and the garbage guide area communicates with the garbage box 9. The garbage guide area is used to guide the garbage into the garbage box 9. Due to its inclined setting, under the action of gravity, the garbage can quickly slide from the garbage guide area into the garbage box 9, avoiding blockage caused by excessive garbage and affecting the normal operation of the brush 5 or the cleaning roller body 31.

[0106] In a specific embodiment, referring to Figure 5 and Figure 6, a water tank 10 integrating a sewage collection chamber (not shown in the figure) and a clean water chamber (not shown in the figure) is provided inside the tractor head housing 1, and a sewage channel (not shown in the figure) and a clean water channel (not shown in the figure) are provided inside the tractor head housing 1. The clean water channel is used to supply clean water to the cleaning roller body 31 in the right area from point M to point N, so that the cleaning roller body 31 has an appropriate amount of clean water to facilitate the absorption of garbage on the surface to be cleaned. The sewage channel communicates with the closed water tank space A and is used to transport the sewage stored in the closed water tank space A back to the sewage chamber.

[0107] In this embodiment, the cleaning roller body 31 rolls on the surface to be cleaned. The sponge layer provided on the surface of the cleaning roller body contains an appropriate amount of clean water to clean the surface to be cleaned. For dry garbage, the dry garbage causes the sponge layer to be compressed and deformed. The sponge layer wraps the dry garbage through deformation, so that the dry garbage is separated from the surface to be cleaned and rotates with the cleaning roller body 31. The dry garbage leaves the surface to be cleaned and is squeezed by the detachable shovel strip 7 and continues to rotate with the cleaning roller body 31. When passing the detachable shovel strip 7, due to the loss of the pressure of the detachable shovel strip 7, the sponge layer on the surface of the cleaning roller body 31 resumes deformation, and some larger dry garbage particles are released from the sponge layer, enter the garbage box 9 from the garbage guiding area, and some dry garbage that cannot be released is combed by the brush 5 and falls to the garbage guiding area and enters the garbage box 9 from the garbage guiding area.

[0108] For some garbage such as dust or hair that cannot be easily cleaned by the brush 5, the dust will fuse with the clean water in the sponge layer of the cleaning roller body 31 to form sewage, and will not be raised to prevent secondary pollution. The sewage is absorbed in the sponge layer of the cleaning roller body 31 until the cleaning roller body 31 rotates to contact the extrusion roller body 21. Under the extrusion of the extrusion roller body 21, the sewage flows out of the sponge layer of the cleaning roller body 31 into the closed water tank space A. Some small particle garbage such as hair will adhere to the sponge layer of the cleaning roller body 31 until the cleaning roller body 31 rotates to contact the extrusion roller body 21. The extrusion roller body 21 peels off these small particle garbage from the sponge layer of the cleaning roller body 31. Part of it enters the closed water tank space A, and the other part may adhere to the surface of the extrusion roller body 21. As the extrusion roller body 21 rotates to contact the abutting strip, the abutting strip peels off these garbage from the extrusion roller body 21.

[0109] For wet garbage, since the sponge layer of the cleaning roller body 31 contains an appropriate amount of clean water, it can absorb the wet garbage and is squeezed out of the cleaning roller body 31 by the extrusion roller body 21 and flows into the closed water tank space A, and is brought into the sewage chamber of the water tank 10 by the sewage channel. The wet garbage does not enter the garbage box 9, achieving the purpose of separating dry and wet garbage.

[0110] For sticky wet garbage, which is a mixture of liquid and solid, the treatment process of the liquid is the same as that of the above-mentioned wet garbage. The liquid will be absorbed into the sponge layer of the cleaning roller body 31 and squeezed by the squeezing roller body 21 into the closed water tank space A, which will not be elaborated here. The treatment process of the solid is the same as that of the above-mentioned dry garbage and will eventually enter the garbage box 9, which will not be elaborated here.

[0111] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that the solutions obtained by equivalent replacement and obvious changes made by using the content of the specification of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning tool, characterized in that: It comprises a tractor head shell and a squeezing roller, a cleaning roller and a decontamination assembly arranged in the tractor head shell; The cleaning roller is rotatably arranged at the right end of the tractor housing; The squeezing roller abuts against the top of the cleaning roller and has an interference fit with the cleaning roller, and the squeezing roller is eccentrically arranged to the left relative to the cleaning roller; The decontamination component is arranged on the left side of the squeezing roller, the bottom end of the decontamination component abuts against the cleaning roller, the free end of the decontamination component abuts against the squeezing roller, and the decontamination component, the squeezing roller and the cleaning roller enclose to form a closed water tank space; After the squeezing roller squeezes the cleaning roller, the outflowing sewage can be contained in the closed water tank space.

2. The cleaning tool according to claim 1, characterized in that: The central axis of the squeezing roller is offset by 1° to 5° in the vertical direction relative to the central axis of the cleaning roller.

3. The cleaning tool according to claim 1, characterized in that: The decontamination assembly comprises a decontamination member, a baffle member and a fixing member; The fixing member is connected to the tractor housing; The barrier element and the decontamination element are both connected to the fixing element; The bottom end of the barrier element abuts against the cleaning roller, and the free end of the decontamination element abuts against the squeezing roller.

4. The cleaning tool according to claim 3, characterized in that: The free end of the decontamination member is provided with an abutment strip, and the abutment strip abuts against the squeezing roller to clean the surface of the squeezing roller.

5. The cleaning tool according to claim 1, characterized in that: It also includes a brush disposed in the mop housing, a drive motor connected to the cleaning roller, and a transmission mechanism connected to the drive motor; The transmission mechanism is in transmission connection with the brush and the squeezing roller; the brush and the cleaning roller are in interference fit; The driving motor can drive the transmission mechanism to simultaneously drive the brush, the squeezing roller and the cleaning roller to rotate.

6. The cleaning tool according to claim 5, characterized in that: One end of the driving motor is provided with an end torque assembly; The transmission mechanism comprises a driving wheel engaged with the end torsion assembly and a first driven wheel group meshed with the driving wheel; The first driven wheel assembly includes a first driven wheel, the first driven wheel is meshed with the driving wheel and connected to the brush; or, The first driven wheel assembly includes at least two first driven wheels arranged in sequence, wherein two adjacent first driven wheels mesh with each other, and the first driven wheel at the head end meshes with the driving wheel, and the first driven wheel at the tail end is connected to the brush.

7. The cleaning tool according to claim 6, characterized in that: The transmission mechanism also includes a second driven wheel set; The second driven wheel assembly includes a second driven wheel, the second driven wheel is meshed with the driving wheel and connected to the squeezing roller; or, The second driven wheel group includes at least two second driven wheels arranged in sequence, wherein two adjacent first driven wheels are meshed with each other, and the second driven wheel at the head end is meshed with the driving wheel, and the second driven wheel at the tail end is connected to the squeezing roller.

8. The cleaning tool according to claim 5, characterized in that: Also included is a garbage box disposed in the tractor housing; The garbage box is arranged below the brush and is used for accommodating garbage generated after the brush cleans the surface of the cleaning roller.

9. The cleaning tool according to claim 8, characterized in that: Also included is a detachable shovel bar disposed between the trash box and the cleaning roller; The right side surface of the detachable shovel strip is arc-shaped and abuts against the surface of the cleaning roller.

10. The cleaning tool according to claim 9, characterized in that: Also included is a trash guide disposed between the detachable shovel bar and the trash box; The upper surface of the garbage guide or the garbage guide and the detachable shovel bar forms an inclined garbage guide area; The garbage guiding area is arranged below the brush and is communicated with the garbage box.

11. The cleaning tool according to any one of claims 1 to 10, characterized in that: The squeezing roller comprises a squeezing roller body, a bearing and an elastic support shaft arranged at one end of the squeezing roller body; The squeezing roller body is provided with an inner cavity; The bearing cover is arranged at the opening of the inner cavity; The elastic support shaft includes a locking member and a spring; Part of the locking member is limited in the inner cavity by the bearing, and the locking member is elastically connected to the inner wall of the inner cavity through the spring; The locking piece extending out of the inner cavity can be locked with the tractor head housing.

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