Cleaning tool

Abstract

The invention discloses a cleaning tool. The cleaning tool comprises a mopping head shell, an extrusion roller, a cleaning roller and a dirt removing part, wherein the extrusion roller, the cleaning roller and the dirt removing part 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 dirt cleaning part is arranged on the left side of the extrusion roller, the bottom end of the dirt cleaning part abuts against the cleaning roller, the free end of the dirt cleaning part abuts against the extrusion roller, and a closed water tank space is defined by the dirt cleaning part, 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

[0001] This application is a divisional application of Chinese patent application No. 202410026462.4 and invention name “A decontamination device and cleaning tool”, the contents of which are incorporated herein by reference. Technical Field

[0002] The invention relates to the technical field of cleaning equipment, and in particular to a cleaning tool. Background Art

[0003] In the early days, people used brooms, mops, floor wipes, etc. to clean the floor. These tools mainly rely on manual operation to complete the cleaning work. With the advancement of science and technology, people's requirements for floor cleaning tools have gradually increased. The first to appear was the vacuum cleaner, which relies on electricity to generate negative pressure to absorb garbage, dust, etc. on the ground. Classified from the means of cleaning and the circulation channels of small and large particles of garbage, this type of technology is usually attributed to air-dust circulation technology. However, due to the limitations of its working principle, the vacuum cleaner cannot clean some garbage and stains that are firmly attached to the ground. Therefore, a new "water-dust circulation" floor scrubber has appeared. The motor drives the cleaning cylinder to wipe the ground. At the same time, the floor cleaner will also be equipped with a water supply system and a sink to clean the cleaning cylinder, thereby perfectly cleaning the ground.

[0004] The applicant's Chinese invention patent CN212326298U discloses a cleaning tool, which includes a cleaning head. The cleaning head includes: a cleaning module, including a roller and a squeezing roller arranged on the upper right side of the roller, wherein 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 shell, including a side shell, provided with a first sewage box; the roller and the squeezing roller are respectively installed on the side shell, the first sewage box is connected to the water tank, and a filter net 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 net. The bottom end of the squeezing roller interferes with the sponge layer of the roller, that is, the bottom end of the squeezing roller squeezes the sponge layer, and the squeezing roller and the roller form a water tank A. The roller brush is located between the roller and the garbage box, and is used to clean the garbage on the surface of the roller. Through the "water-dust circulation", the self-cleaning of the roller can be achieved, and the surface of the area to be cleaned can be continuously scrubbed, with good cleaning effect and high work efficiency. Summary of the invention

[0005] The present application provides a cleaning tool that can achieve "water-dust circulation" while preventing the sewage in the water tank from flowing to the ground and destroying the cleanliness in the prior art. The specific technical solution is as follows:

[0006] A cleaning tool, characterized by comprising:

[0007] Tractor housing;

[0008] A cleaning roller is rotatably disposed at the right end of the tractor housing to scrub the surface to be cleaned;

[0009] A squeezing roller is rotatably disposed in the tractor housing, abuts against the top of the cleaning roller and is eccentrically disposed to the left relative to the cleaning roller, and is interference-fitted with the cleaning roller;

[0010] A dirt-cleaning member connected to the tractor housing and disposed on the left side of the squeezing roller, wherein the bottom end of the dirt-cleaning member abuts against the cleaning roller, and the free end of the dirt-cleaning member abuts against the squeezing roller, and the dirt-cleaning member scrapes and separates dirt adhered to the surfaces of the cleaning roller and the squeezing roller;

[0011] The dirt-cleaning member, the squeezing roller and the cleaning roller enclose a closed water tank space.

[0012] In one or some optional embodiments, after the squeezing roller squeezes the cleaning roller, the discharged sewage can be accommodated in the closed water tank space, and the central axis of the squeezing roller deviates from the central axis of the cleaning roller by 1°-5° in the vertical direction.

[0013] In one or some optional embodiments, the cleaning member comprises:

[0014] A fixing member connected to the tractor housing;

[0015] a decontamination member connected to the fixing member and having the free end;

[0016] The barrier member is connected to the fixing member and has the bottom end. The end surface of the bottom end of the barrier member is an arc shape matching the surface of the cleaning roller body.

[0017] In one or some optional embodiments, a plurality of mounting grooves are provided on the fixing member, at least one mounting strip is fixed on each of the baffle member and the decontamination member, and the baffle member and the decontamination member are respectively connected to the mounting grooves of the fixing member through the mounting strips.

[0018] In one or some optional embodiments, the free end is provided with an abutment strip, and the abutment strip abuts against the squeezing roller to clean the surface of the squeezing roller.

[0019] In one or some optional embodiments, the cleaning roller comprises a cleaning roller body, and a sponge layer is provided on the surface of the cleaning roller body.

[0020] In one or some optional embodiments, when the sponge layer of the cleaning roller body is in an unsaturated state, a gap is formed between the bottom end of the cleaning member and the cleaning roller body, and the seeping sewage drips onto the cleaning roller body on the left or into the tractor shell.

[0021] In one or some optional embodiments, the squeezing roller rotates by means of the friction force of the cleaning roller body.

[0022] In one or some optional embodiments, the cleaning tool further comprises:

[0023] A driving motor is arranged in the tractor housing;

[0024] A brush is disposed in the mop head housing and is interference-fitted with the cleaning roller;

[0025] The transmission mechanism is arranged in the tractor housing and is connected to the driving motor so as to drive the cleaning roller, the squeezing roller and the brush to rotate at the same time.

[0026] In one or some optional embodiments, one end of the drive motor is provided with an end torque assembly, and the transmission mechanism includes:

[0027] A driving wheel, which is clamped with the end torsion assembly;

[0028] The first driven wheel group is meshed with the driving wheel,

[0029] 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;

[0030] or,

[0031] The first driven wheel assembly includes at least two first driven wheels arranged in sequence, two adjacent first driven wheels mesh with each other, 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.

[0032] In one or some optional embodiments, the transmission mechanism further includes a second driven wheel set;

[0033] 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;

[0034] or,

[0035] 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.

[0036] In one or some optional embodiments, the cleaning tool further comprises a trash box disposed in the mop head housing;

[0037] 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.

[0038] In one or some optional embodiments, the cleaning tool further comprises a detachable shovel bar disposed between the trash box and the cleaning roller;

[0039] The right side surface of the detachable shovel strip is arc-shaped and abuts against the surface of the cleaning roller.

[0040] In one or some optional embodiments, the cleaning tool further comprises a trash guide disposed between the detachable shovel bar and the trash box;

[0041] The upper surface of the garbage guide or the garbage guide and the detachable shovel bar forms an inclined garbage guide area;

[0042] The garbage guiding area is arranged below the brush and is communicated with the garbage box.

[0043] In one or some optional embodiments, the squeezing roller comprises:

[0044] The squeezing roller body is provided with an inner cavity;

[0045] A bearing, disposed at one end of the squeezing roller body, and covered at the opening of the inner cavity;

[0046] An elastic support shaft is arranged at one end of the squeezing roller body, and the elastic support shaft includes a locking piece and a spring. Part of the locking piece is limited in the inner cavity by the shaft, and the locking piece 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 shell.

[0047] In one or some optional embodiments, a gear connection portion is provided at the other end of the squeezing roller body relative to the bearing and the elastic support shaft, and the gear connection portion includes:

[0048] A fixing part connected to the squeezing roller body;

[0049] a connecting portion connected to the fixing portion and to the second driven wheel;

[0050] When in use, the driving motor rotates to drive the cleaning roller body to rotate, and at the same time drives the driving wheel to rotate, the driving wheel drives the second driven wheel to rotate, and the second driven wheel drives the squeezing roller body to rotate.

[0051] In summary, the beneficial effects of this scheme are:

[0052] The present application provides a cleaning tool, which is provided with a cleaning roller, a squeezing roller and a dirt-cleaning member, and the three are enclosed to form a closed water tank space, and the squeezing roller and the cleaning roller form an interference fit, so that 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, the closed water tank space is located at the upper left of the cleaning roller. When the cleaning roller is in an unsaturated 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, thereby affecting the cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0054] Figure 1 A three-dimensional diagram of the cleaning tool provided by the present invention;

[0055] Figure 2 for Figure 1 A-axis sectional view;

[0056] Figure 3 for Figure 1 Partial stereogram of ;

[0057] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0058] Figure 5 for Figure 2 A partial enlarged view of point C in the middle;

[0059] Figure 6 An exploded view of the cleaning tool provided by the present invention;

[0060] Figure 7 An exploded view of the cleaning tool provided by the present invention from another perspective;

[0061] Figure 8 A three-dimensional diagram of the dirt cleaning member provided by the present invention;

[0062] Fig. 9 A three-dimensional diagram of the dirt cleaning member provided by the present invention;

[0063] Fig.10 A three-dimensional diagram of the dirt-cleaning member provided by the present invention from another perspective;

[0064] Fig.11A three-dimensional diagram of the squeezing roller provided by the present invention;

[0065] Fig.12 for Fig.11 Middle D-axis sectional view;

[0066] Fig.13 An exploded view of the squeezing roller provided by the present invention;

[0067] Fig.14 A schematic diagram of a comparative example of the arrangement position of the squeezing roller body provided by the present invention;

[0068] Description of reference numerals:

[0069] 1. Tractor housing;

[0070] 2. Squeeze roller;

[0071] 21. Extrusion roller body;

[0072] 22. Bearings;

[0073] 23. elastic support shaft; 231. locking member; 232. spring;

[0074] 24. Gear connecting part; 241. Fixing part; 242. Connecting part;

[0075] 3. Cleaning roller; 31. Cleaning roller body; 32. End twist assembly;

[0076] 4. Cleaning parts; 41. Decontamination parts; 42. Blocking parts; 43. Fixing parts;

[0077] 5. Brush;

[0078] 6. Gear set; 61. Driving wheel; 62. First driven wheel set; 63. Second driven wheel set;

[0079] 7. Removable shovel strips;

[0080] 8. Garbage guide;

[0081] 9. Trash box;

[0082] 10. Water tank;

[0083] 11. Driving motor;

[0084] A. Close the sink space. DETAILED DESCRIPTION

[0085] The claims of the present invention are further described in detail below in conjunction with specific embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the present invention.

[0086] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up", "down", "left", "right", "front", "back", etc., indicate the orientation or position relationship based on the orientation, position relationship shown in the drawings or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of simplifying the description of the present invention, and does not expressly or imply that the device, element or component referred to must have a specific orientation and a specific orientation structure, and should not be understood as a limitation on the present invention. It is only used to explain the relative position relationship, movement, etc. between the components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

[0087] In addition, ordinal numbers such as "first" and "second" in the present invention are only used for the purpose of distinction, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" can explicitly or implicitly indicate at least one of the technical features. In the description of the present invention, "multiple" means at least two, that is, two or more, unless otherwise clearly defined; "at least one" means one or one and more.

[0088] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, the positional relationship between components can be relatively fixed, or the components can be physically fixedly connected; they can be detachably connected or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium or component; they can be internally connected between two elements or interact with each other. Unless otherwise clearly defined in the specification, other interpretations may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0089] The present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0090] The inventor has found that in existing patents, such as a cleaning tool disclosed in CN212326298U, continuous scrubbing of the surface of the area to be cleaned can be achieved by utilizing "water-dust circulation". However, in actual use, due to the interference between the bottom end of the squeezing roller and the sponge layer of the drum, the bottom end of the squeezing roller will squeeze the sponge layer, forming a water trough on one side of the squeezing roller and the drum, that is, a part of the bottom of the water trough itself is the water-absorbent sponge layer of the drum, and the bottom of the water trough can only remain closed when the sponge layer of the drum reaches a saturated state. As long as the sponge layer is in an unsaturated state, the bottom of the water trough will seep water toward the surface of the cleaning area, destroying the cleanliness of the cleaning area.

[0091] Based on this, after further research and development, the inventor proposed a cleaning tool to solve the above problems.

[0092] See also Figure 1-Figure 13 The present embodiment provides a cleaning tool, which includes a tractor housing 1 and a squeezing roller 2, a cleaning roller 3 and a dirt-cleaning member 4 arranged in the tractor housing 1. The cleaning roller 3 is rotatably arranged at the right end of the tractor housing 1, and the cleaning roller 3 can be detachably connected to the tractor housing 1, which is convenient for maintenance or installation.

[0093] Specifically, Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the squeezing roller 2 is arranged above the cleaning roller 3 and abuts against it, and forms an interference fit, so that the squeezing roller 2 can squeeze the cleaning roller 3. The squeezing roller 2 is eccentrically arranged to the left relative to the cleaning roller 3, that is, the squeezing roller 2 is located at the upper left of the cleaning roller 3. The dirt cleaning member 4 is arranged on the left side of the squeezing roller 2, the bottom end of the dirt cleaning member 4 abuts against the cleaning roller 3, and the free end of the dirt cleaning member 4 abuts against the squeezing roller 2. The dirt cleaning member 4, the squeezing roller 2 and the cleaning roller 3 enclose a closed water tank space A.

[0094] It is worth noting that, in this embodiment, refer to Figure 1 , the direction of travel of the cleaning tool is to the right 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 seed shells, rice grains, paper scraps, etc. Wet garbage is liquid garbage, such as water, beverages, etc. Sticky wet garbage includes soup, stew, porridge, ketchup, chocolate sauce and other semi-solid garbage with a certain viscosity. Other garbage such as dust, ground prints, etc. are also the cleaning objects of this embodiment.

[0095] See also Figure 7The cleaning roller 3 includes a cleaning roller body 31. The surface of the cleaning roller body 31 is provided with a sponge layer in conventional technology, which can be used to absorb garbage. The inner layer of the cleaning roller body 31 is provided with a rotating shaft (not shown in the figure). 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 in the cleaning roller body 31 and coupled with the rotating shaft to drive the cleaning roller body 31 to rotate, which can save space and reduce the volume of the cleaning tool.

[0096] A power mechanism may be provided in the tractor housing 1 to rotate the squeezing roller 2, or no power mechanism may be provided, and the squeezing roller 2 rotates by the friction force of the cleaning roller body 31. When the power mechanism is provided, 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, the water squeezing effect is better than when the squeezing roller 2 does not rotate. 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, which is better than the first case. 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 and second cases, this saves the most power, is noiseless, and has a better water squeezing effect.

[0097] When using, 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 merge to form sewage. When the area of ​​the cleaning roller body 31 that absorbs garbage rotates to the squeezing roller 2, the squeezing roller 2 squeezes it and squeezes out all the sewage in the sponge layer of the cleaning roller body 31. The sewage that flows out 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 cleaning member 4 and the cleaning roller body 31, resulting in the closed water tank space A being in an unclosed state, which will cause water seepage. However, since the closed water tank space A is set at the upper left of the cleaning roller body 31, the seeped sewage will drip onto the cleaning roller on the left, or drip into the mop head housing 1, and will not directly drip onto the surface to be cleaned like the prior art, thereby affecting the cleanliness.

[0098] Furthermore, when the sponge layer of the cleaning roller body 31 is in an unsaturated state, a gap may be formed 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 seeped sewage will flow out from the left side along the cleaning roller body 31 under the action of gravity and drip into the mop head housing 1 or flow into the closed water tank space A, but will not drip onto the surface to be cleaned, thereby affecting the cleanliness.

[0099] In a specific embodiment, see Fig.11 , Fig.12 and Fig.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, and an inner cavity (not shown in the figure) is arranged in the squeezing roller body 21. The bearing 22 cover is arranged at the opening of the inner cavity, and the bearing 22 can be threadedly connected with 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 inner cavity by the bearing 22. The locking member 231 is elastically connected to the inner wall of the inner cavity through the spring 232. The locking member 231 extending out of the inner cavity can be locked with the tractor shell 1 (not shown in the figure). When in use, the squeezing roller body 21 is pressed, and the spring 232 compresses and drives the locking member 231 to move toward the inner cavity, and releases the lock with the tractor shell 1, so that the squeezing roller body 21 can be easily taken out of the tractor shell 1.

[0100] In a specific embodiment, see 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 the figure is 1°-5°. The contact point between the squeezing roller body 21 and the cleaning roller body 31 is M, and the contact point between the cleaning roller body 31 and the surface to be cleaned is N. The squeezing roller body 21 rotates clockwise to the position of point M, and the sewage is squeezed out by the squeezing roller body 21, and continues to rotate. The right area of ​​the cleaning roller body 31 from point M to point N still contains a small amount of unsqueezed clean water. When it rotates to point N, the surface to be cleaned is cleaned. Fig.14, relative to the contact point N between the cleaning roller body 31 and the surface to be cleaned, the highest point of the cleaning roller body 31 is P. If the angle θ exceeds 5°, the cleaning roller body 31 still contains a small amount of unsqueezed clean water in the right area from point M to point N. Due to the action of gravity, the clean water between point M and point P accumulates too much clean water in the wedge-shaped space (not shown in the figure) formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31. The part of the cleaning roller body 31 soaked in the clean water accumulated in the wedge-shaped space is in an oversaturated 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 will accumulate on the surface to be cleaned, causing slipperyness, posing certain safety hazards, and failing to meet the cleanliness requirements.

[0101] The applicant has conducted experiments such as Figure 5 As shown, when the cleaning roller body 31 rotates at an angular velocity of 60RPM (revolutions per minute), under the action of inertia, when the angle θ is 1°, the sewage squeezed out of the cleaning roller body 31 by the squeezing roller body 21 at point M can just flow out under the action of gravity along the surface of the cleaning roller body 31 in an oversaturated state, and at this time, the wedge-shaped space formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31 does not have any excess clean water; when the angle θ is 5°, more sewage is squeezed out of the cleaning roller body 31 by the squeezing roller body 21 at point M and can flow out under the action of gravity along the surface of the cleaning roller body 31 in an oversaturated state, and at this time, the wedge-shaped space formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31 just begins to precipitate clean water, that is, the cleaning roller body 31 near point M is in an oversaturated state, and 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 form on the surface to be cleaned. Of course, when the cleaning roller body 31 rotates at a higher speed, the squeezed sewage is more likely to form a “water film” on the surface of the cleaning roller body 31 due to the effect of inertia.

[0102] When the cleaning roller body 31 rotates at an angular velocity of 150RPM (revolutions per minute), under the action of inertia, when the angle θ is 1°, the sewage squeezed out of the cleaning roller body 31 by the squeezing roller body 21 at point M can just flow out under the action of gravity along the surface of the cleaning roller body 31 in an oversaturated state. At this time, the wedge-shaped space formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31 does not have any excess clean water; when the angle θ is 5°, more sewage is squeezed out of the cleaning roller body 31 by the squeezing roller body 21 at point M and can flow out under the action of gravity along the surface of the cleaning roller body 31 in an oversaturated state. At this time, the wedge-shaped space formed by the surface of the squeezing roller body 21 and the surface of the cleaning roller body 31 just begins to precipitate clean water, that is, the cleaning roller body 31 near point M is in an oversaturated 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 form on the surface to be cleaned.

[0103] In a specific embodiment, see Figure 2 , Figure 5 , Figure 7-Figure 10 The dirt-cleaning member 4 includes a dirt-cleaning member 41, a barrier member 42 and a fixing member 43. The fixing member 43 is connected to the tractor housing 1, and a detachable connection method, such as a threaded connection, a snap connection, etc., can be adopted, which is convenient for installation and maintenance. The barrier member 42 and the dirt-cleaning member 41 are both connected to the fixing member 43. Specifically, a plurality of T-shaped mounting grooves (not shown in the figure) can be provided on the fixing member 43, and T-shaped mounting strips can be fixed on the barrier member 42 and the dirt-cleaning member 41. By snapping the T-shaped mounting strips with the T-shaped mounting grooves, the barrier member 42 and the dirt-cleaning member 41 are connected to the fixing member 43, which is convenient for installation and disassembly. The bottom end of the barrier member 42 abuts against the cleaning roller body 31. In order to make it fit the cleaning roller body 31 completely, the end face of the bottom end of the barrier member 42 can be set to an arc shape that matches the surface of the cleaning roller body 31. The free end of the dirt-cleaning member 41 abuts against the squeezing roller body 21. Of course, the T-shaped mounting groove can also be a trapezoidal, dovetail-shaped or other groove shape that can achieve one-way sliding, and the T-shaped mounting strip can also be a trapezoidal, dovetail-shaped or other strip shape that can achieve one-way sliding, which will not be described one by one here.

[0104] In a specific embodiment, see Figure 5 , Figure 8 , Fig.10The free end of the decontamination member 41 is provided with an abutting strip (not shown in the figure), which abuts against the squeezing roller body 21 to clean the surface of the squeezing roller body 21. When the cleaning roller body 31 is used for cleaning, 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 squeezing roller body 21. The squeezing roller body 21 peels off these small particles of garbage from the cleaning roller body 31, and a part of them enters the closed water tank space A, and the other part may adhere to the surface of the squeezing roller body 21. As the squeezing roller body 21 rotates to contact the abutting strip, the abutting strip peels these garbage from the squeezing roller body 21.

[0105] Furthermore, the surface of the squeezing roller body 21 is a flexible sponge layer, and the material of the abutting strip is preferably a rigid material, so that the abutting strip can scrape the squeezing roller body 21, and the cleaning effect is better. In order to facilitate the cleaning of garbage, except that the material of the abutting strip is a rigid material, the material of the rest of the decontamination member 41 can be set to a flexible material with a certain elasticity. When it is necessary to clean the garbage peeled off by the abutting strip, the decontamination member 41 can be directly moved to keep the abutting strip away from the squeezing roller body 21, and then cleaning can be carried out, which is convenient and quick.

[0106] The applicant's Chinese invention patents CN211834240U and CN211834241U both disclose that: the squeezing roller is rotatably fixed on the housing of the cleaning head. The squeezing 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 squeezing roller to drive the squeezing roller to rotate, so that the squeezing effect on the drum is better. At the same time, another drive motor is required to drive the drum to rotate. Although the purpose of rotating the squeezing roller can be achieved by setting the first motor, the first motor will occupy the housing space, increase the weight of the housing, and also increase the cost.

[0107] To solve the above problems, see Figure 4 and Figure 7 Only one driving motor 11 is provided in the tractor housing 1 to be connected to the cleaning roller body 31, and a transmission mechanism connected to the driving motor 11 is provided, and the transmission mechanism is in transmission connection with the squeezing roller body 21. Here, the transmission mechanism may be a gear transmission mechanism, a chain transmission mechanism, etc. in 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 squeezing roller body 21 to rotate simultaneously, so as to achieve the purpose of reducing the weight of the cleaning tool and saving costs.

[0108] In a specific embodiment, a brush 5 and a trash box 9 arranged below the brush 5 are arranged in the tractor housing 1, see Figure 5The brush 5 is specifically arranged on the left side of the cleaning roller body 31. The brush 5 abuts against the cleaning roller body 31 to form an interference fit so as to clean the surface of the cleaning roller body 31. When in use, the cleaning roller body 31 rolls on the surface to be cleaned, and because 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, and the sponge layer wraps the garbage through deformation, so that the garbage is separated from the surface to be cleaned, and rotates with the cleaning roller body 31, and the garbage leaves the surface to be cleaned. When the cleaning roller body 31 rotates to contact with the brush 5, the brush 5 brushes the cleaning roller body 31 to clean the garbage wrapped by the cleaning roller body 31, thereby ensuring the cleanliness of the cleaning roller body 31, and the garbage brushed falls into the garbage box 9 under gravity, and the garbage box 9 collects the garbage to prevent the garbage from being scattered around in the tractor housing 1 and affecting the normal operation of other components, and also facilitates the user to clean the garbage. Similarly, in order to rotate the brush 5, the brush 5 is connected to the transmission mechanism. When the driving motor 11 rotates, it can drive the transmission mechanism and drive the brush 5 to rotate.

[0109] In a specific embodiment, see Figure 4 and Figure 7 , an end torsion assembly 32 is arranged at one end of the driving motor 11. The transmission mechanism is a gear set 6, which includes a driving wheel 61 engaged with the end torsion assembly 32 and a first driven wheel set 62 meshing with the driving wheel 61, and the first driven wheel set 62 includes a first driven wheel (not shown in the figure), which meshes with the driving wheel 61 and is connected to the brush 5. When in use, the driving motor 11 rotates, which can drive the cleaning roller body 31 to rotate, and at the same time drive 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.

[0110] In another embodiment, see Figure 4 and Figure 7 The gear set 6 includes a driving wheel 61 engaged 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, wherein two adjacent first driven wheels mesh with each other, and 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 setting multiple first driven wheels is that the transmission ratio can be improved by increasing the number of teeth of each first driven wheel in sequence, so that the rotation speed of the brush 5 is greater than the rotation speed of the cleaning roller body 31, and the brush 5 can clean the cleaning roller body 31 at a faster frequency to achieve a better cleaning effect, further ensuring the cleanliness of the cleaning roller body 31.

[0111] For details, see Figure 4 and Figure 7, provides an embodiment in which the first driven wheel set 62 includes two first driven wheels, Figure 4 and Figure 7 In the embodiment, the first driven wheel on the right is meshed with the driving wheel 61, and the first driven wheel on the left is connected to the brush 5, and the number of teeth of the first driven wheel on the left is greater than that of the first driven wheel on the right, so that the transmission ratio can be improved 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 perspective of the rotation direction, the driving wheel 61 rotates clockwise with the driving motor 11, the first driven wheel on the right rotates counterclockwise, and the first driven wheel on the left drives the brush 5 to rotate clockwise. Therefore, when the number of the 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. Figure 5 Since the brush 5 rotates clockwise, when the brush 5 cleans the cleaning roller body 31 , the brush 5 provides a downward pushing force to the cleaned garbage so that the garbage enters the garbage box 9 .

[0112] In a specific embodiment, see Figure 4 and Figure 7 The gear set 6 also includes a second driven wheel set 63, which includes a second driven wheel (not shown in the figure), which is meshed with the driving wheel 61 and connected to the squeezing roller body 21. For details, see Fig.12 and Fig.13 A gear connection part 24 is provided at the other end of the squeezing roller body 21 relative to the bearing 22 and the elastic support shaft 23. The gear connection part 24 includes a fixing part 241 connected to the squeezing roller body 21 and a connecting part 242 connected to the fixing part 241. The connecting part 241 is connected to the second driven wheel. When in use, the driving motor 11 rotates, which 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 squeezing roller body 21 to rotate to clean the surface of the cleaning roller body 31. At the same time, from the perspective of rotation, the driving wheel 61 and the cleaning roller body 31 both rotate clockwise, and the second driven wheel meshing with the driving wheel 61 drives the squeezing roller body 21 to rotate counterclockwise, which meets the third situation mentioned above. This saves the most power, is noiseless, and has a better squeezing effect.

[0113] In another embodiment, see Figure 4 and Figure 7 The gear set 6 also includes a second driven wheel set 63, which 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 61, and the second driven wheel at the tail end is connected to the extrusion roller body 21.

[0114] For details, see Figure 4 and Figure 7 , an embodiment is provided in which the second driven wheel group 63 includes three second driven wheels, the second driven wheel located on the far right is meshed with the driving wheel 61, the second driven wheel located on the far left is connected to the squeezing roller body 21, and another second driven wheel is meshed between the two. From the perspective of rotation, the driving wheel 61 and the cleaning roller body 31 both rotate clockwise, the second driven wheel located on the far right rotates counterclockwise, the second driven wheel in the middle rotates clockwise, and the second driven wheel located on the far left drives the squeezing roller body 21 to rotate counterclockwise, which meets the third situation mentioned above, which is the most energy-saving, noise-free, and has a better water squeezing effect. Therefore, when the number of the second driven wheels is at least two, the number is preferably an odd number, so that the rotation direction of the squeezing roller body 21 is counterclockwise. At the same time, the number of teeth of the second driven wheels can be increased in sequence to increase the transmission ratio, so as to achieve the purpose of increasing the rotation speed of the squeezing roller body 21 and improve the water squeezing effect on the cleaning roller body 31.

[0115] In a specific embodiment, see Figure 5 The cleaning device further includes a detachable shovel bar 7 disposed between the garbage box 9 and the cleaning roller body 31. The right side of the detachable shovel bar 7 is arc-shaped, matching and abutting against the surface of the cleaning roller body 31. When in use, the cleaning roller body 31 rolls on the surface to be cleaned, and the sponge layer of the cleaning roller body 31 wraps the garbage. The garbage leaves the surface to be cleaned and is squeezed by the detachable shovel bar 7, and continues to rotate with the cleaning roller body 31. The detachable shovel bar 7 can prevent the garbage from falling off the cleaning roller body 31 under the action of gravity and falling back to the surface to be cleaned, reducing the cleaning efficiency. Then it rotates to the brush 5, and the garbage is brushed into the garbage box 9.

[0116] In a specific embodiment, see Figure 5 The cleaning device further includes a garbage guide 8 disposed between the detachable shovel strip 7 and the garbage box 9. The garbage guide 8 or the upper surface of the garbage guide 8 and the detachable shovel strip 7 forms an inclined garbage guide area (not shown in the figure), and the garbage guide area is connected to the garbage box 9. The garbage guide area is used to guide the garbage into the garbage box 9, and because it is arranged to be inclined, under the action of gravity, the garbage can quickly slide from the garbage guide area into the garbage box 9, avoiding excessive garbage from forming a blockage, which affects the normal operation of the brush 5 or the cleaning roller body 31.

[0117] In a specific embodiment, see Figure 5 and Figure 6A water tank 10 integrating a sewage chamber (not shown in the figure) and a clean water chamber (not shown in the figure) is provided in the tractor housing 1, and a sewage channel (not shown in the figure) and a clean water channel (not shown in the figure) are provided in the tractor housing 1. The clean water channel is used to provide clean water to the cleaning roller body 31 located 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 absorb garbage on the surface to be cleaned. The sewage channel is connected to 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.

[0118] In this embodiment, the cleaning roller body 31 rolls on the surface to be cleaned, and 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 compresses and deforms the sponge layer, and the sponge layer wraps the dry garbage by 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 bar 7, and continues to rotate with the cleaning roller body 31. When the detachable shovel bar 7 is turned, the sponge layer on the surface of the cleaning roller body 31 resumes deformation due to the loss of the pressure of the detachable shovel bar 7, and some dry garbage with larger particles is released from the sponge layer and enters the garbage box 9 from the garbage guide area. Some dry garbage that cannot be released is combed by the brush 5 and falls into the garbage guide area and enters the garbage box 9 from the garbage guide area.

[0119] For some garbage such as dust or hair that cannot be easily cleaned by the brush 5, the dust will merge 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 squeezing roller body 21. Under the squeezing of the squeezing 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 particles of 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 squeezing roller body 21. The squeezing roller body 21 peels these small particles of garbage from the sponge layer of the cleaning roller body 31, and a part of them enters the closed water tank space A, and the other part may adhere to the surface of the squeezing roller body 21. As the squeezing roller body 21 rotates to contact the abutment bar, the abutment bar peels these garbage from the squeezing roller body 21.

[0120] 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 be squeezed out of the cleaning roller body 31 by the squeezing roller body 21 to flow into the closed water tank space A, and is brought into the sewage cavity of the water tank 10 through the sewage channel. The wet garbage will not enter the garbage box 9, thereby achieving the purpose of separating dry and wet garbage.

[0121] For sticky wet garbage, which is a mixture of liquid and solid, the liquid treatment process is consistent with the above-mentioned wet garbage treatment process. The liquid will be absorbed into the sponge layer of the cleaning roller body 31 and squeezed into the closed water tank space A by the squeezing roller body 21, which will not be repeated here. The solid treatment process is consistent with the above-mentioned dry garbage treatment process, and will eventually enter the garbage box 9, which will not be repeated here.

[0122] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents 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: include: Tractor housing; A cleaning roller is rotatably disposed at the right end of the tractor housing to scrub the surface to be cleaned; A squeezing roller is rotatably disposed in the tractor housing, abuts against the top of the cleaning roller and is eccentrically disposed to the left relative to the cleaning roller, and is interference-fitted with the cleaning roller; A dirt-cleaning member connected to the tractor housing and disposed on the left side of the squeezing roller, wherein the bottom end of the dirt-cleaning member abuts against the cleaning roller, and the free end of the dirt-cleaning member abuts against the squeezing roller, and the dirt-cleaning member scrapes and separates dirt adhered to the surfaces of the cleaning roller and the squeezing roller; The dirt-cleaning member, the squeezing roller and the cleaning roller enclose a closed water tank space.

2. The cleaning tool according to claim 1, characterized in that: After the squeezing roller squeezes the cleaning roller, the sewage flowing out can be contained in the closed water tank space, and the central axis of the squeezing roller deviates by 1°-5° in the vertical direction relative to the central axis of the cleaning roller; Preferably, the cleaning member comprises: A fixing member connected to the tractor housing; a decontamination member connected to the fixing member and having the free end; A barrier member connected to the fixing member and having the bottom end, wherein the end surface of the bottom end of the barrier member is an arc shape matching the surface of the cleaning roller body; Preferably, the fixing member is provided with a plurality of mounting grooves, and at least one mounting strip is fixed to each of the blocking member and the decontamination member, and the blocking member and the decontamination member are respectively connected to the mounting grooves of the fixing member through the mounting strips; Preferably, the free end is provided with an abutment strip, and the abutment strip abuts against the squeezing roller to clean the surface of the squeezing roller.

3. The cleaning tool according to claim 2, characterized in that: The cleaning roller comprises a cleaning roller body, and a sponge layer is provided on the surface of the cleaning roller body; Preferably, when the sponge layer of the cleaning roller body is in an unsaturated state, a gap is formed between the bottom end of the cleaning member and the cleaning roller body, and the seeped sewage drips onto the cleaning roller body on the left side or drips into the tractor housing.

4. The cleaning tool according to claim 3, characterized in that: The squeezing roller rotates by the friction force of the cleaning roller body.

5. The cleaning tool according to claim 3, characterized in that: Also includes: A driving motor is arranged in the tractor housing; A brush is disposed in the mop head housing and is interference-fitted with the cleaning roller; A transmission mechanism is disposed in the tractor housing and is in transmission connection with the drive motor to simultaneously drive the cleaning roller, the squeezing roller and the brush to rotate; Preferably, one end of the driving motor is provided with an end torque assembly, and the transmission mechanism comprises: A driving wheel, which is clamped with the end torsion assembly; The first driven wheel group is 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, two adjacent first driven wheels mesh with each other, 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.

6. The cleaning tool according to claim 5, 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.

7. The cleaning tool according to claim 6, 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 to contain garbage generated after the brush cleans the surface of the cleaning roller; Preferably, the cleaning tool further comprises a detachable shovel bar disposed between the garbage 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.

8. The cleaning tool according to claim 7, 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.

9. The cleaning tool according to any one of claims 6 to 8, characterized in that: The squeezing roller comprises: The squeezing roller body is provided with an inner cavity; A bearing, disposed at one end of the squeezing roller body, and covered at the opening of the inner cavity; An elastic support shaft is arranged at one end of the squeezing roller body, and the elastic support shaft includes a locking piece and a spring. Part of the locking piece is limited in the inner cavity by the shaft, and the locking piece 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 shell.

10. The cleaning tool according to claim 9, characterized in that: A gear connection portion is provided at the other end of the squeezing roller body relative to the bearing and the elastic support shaft, and the gear connection portion includes: A fixing part connected to the squeezing roller body; a connecting portion connected to the fixing portion and to the second driven wheel; When in use, the driving motor rotates to drive the cleaning roller body to rotate, and at the same time drives the driving wheel to rotate, the driving wheel drives the second driven wheel to rotate, and the second driven wheel drives the squeezing roller body to rotate.

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