Decontamination device

Abstract

The decontamination device is installed on the upper portion of a cleaning head shell and elastically abuts against a cleaning roller which rotates to scrub the floor, the decontamination device comprises an extrusion roller and a water supporting strip, the extrusion roller is installed at the rear eccentric position of the rotating direction of the cleaning roller and abuts against the cleaning roller in a rolling mode, the water supporting strip comprises a bottom end and a free end, and a water guide tip is arranged at the end of the free end. The water guide tip elastically abuts against the cleaning roller, and a water guide space is defined by the water supporting strip, the extrusion roller and the cleaning roller; after the squeezing roller squeezes the cleaning roller, the flowing-out sewage can be contained in the water guide space, and the situation that the sewage permeates to the ground through water absorption of a sponge layer of the cleaning roller, and consequently the cleaning efficiency is reduced is avoided.

Description

[0001] This application is a divisional application of Chinese patent application No. 202420045867.8 and invention name “A decontamination device”, the contents of which are incorporated herein by reference. Technical Field

[0002] The utility model relates to the technical field of cleaning equipment, in particular to a decontamination device for cleaning tools. 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 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 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.

[0005] The existing "water-dust circulation" floor scrubber can achieve continuous scrubbing of the surface to be cleaned. The squeezing roller squeezes the sponge layer of the drum to form a water trough. Half of the bottom of the water trough itself is a water-absorbent sponge layer. Only when the sponge layer of the drum at the bottom of the water trough reaches saturation can the water in the water trough be kept from seeping down. Utility Model Content

[0006] The present application provides a decontamination device for cleaning tools, which can achieve "water-dust circulation" while preventing the sewage in the water tank from penetrating into the ground through the water absorption of the sponge layer of the cleaning roller and reducing the cleaning efficiency. The specific technical solution is as follows:

[0007] A decontamination device is mounted on the upper part of a cleaning head housing and elastically abuts against a cleaning roller for scrubbing the floor, and is characterized by comprising:

[0008] A squeezing roller rollingly abuts against the cleaning roller at a rearward eccentric position relative to the rotation direction of the cleaning roller;

[0009] A water-supporting strip, the water-guiding tip of which is close to one end of the squeezing roller and elastically abuts against the cleaning roller;

[0010] A roller protection plate, one end of which is close to the squeezing roller and is above the squeezing roller and elastically abuts against the squeezing roller in a sliding manner;

[0011] Wherein, the roller protection plate, the water supporting bar, the squeezing roller and the cleaning roller enclose a water guiding space.

[0012] In one or some optional embodiments, the cleaning roller is rotatably disposed at the front end of the cleaning head housing, and the cleaning roller and the squeezing roller are detachably connected to the two side walls of the cleaning head housing.

[0013] In one or some optional embodiments, the decontamination device further comprises a fixing member;

[0014] The water-supporting strip and the roller protection plate are both detachably connected to the fixing member.

[0015] In one or some optional embodiments, the fixing member is connected to two side walls of the cleaning head housing, and the fixing member is integrally formed with the cleaning head housing.

[0016] In one or some optional embodiments, the fixing member is detachably connected to both side walls of the cleaning head housing.

[0017] In one or some optional embodiments, the fixing member is provided with at least two fixing grooves;

[0018] The water-supporting strip and the roller protection plate each include a clamping end and a free end, the free end of the water-supporting strip is provided with the water-guiding tip, and the free end of the roller protection plate is elastically abutted against the squeezing roller;

[0019] The clamping ends of the water-supporting strip and the roller protection plate are each provided with at least one fixing edge, and the water-supporting strip and the roller protection plate are detachably clamped in the fixing groove via the fixing edge.

[0020] In one or some optional embodiments, the clamping ends of the water supporting strip and the roller protection plate are made of a hard material, and the free ends of the water supporting strip and the roller protection plate are made of an elastic material.

[0021] In one or some optional embodiments, the lower surface of the water-supporting bar abuts against the cleaning roller; against the rotation direction of the cleaning roller, the interference between the water-supporting bar and the cleaning roller gradually decreases downward from the water-guiding tip.

[0022] In one or some optional embodiments, a free end of the roller guard plate is provided with a plurality of abutment contact points, and the abutment contact points abut against the squeezing roller.

[0023] In one or some optional embodiments, the abutment contact point is made of wear-resistant material.

[0024] In one or some optional embodiments, the free end of the roller guard plate can be turned around the clamping end of the roller guard plate toward a direction away from the squeezing roller.

[0025] In one or some optional embodiments, the central axis of the squeezing roller deviates from the central axis of the cleaning roller by 1°-5° in the vertical direction.

[0026] In summary, the beneficial effects of this scheme are:

[0027] The present application provides a decontamination device for a cleaning tool, wherein a cleaning roller, a squeeze roller, a roller protection plate and a water support strip are arranged on a cleaning head housing, so that the four are enclosed to form a water guide space, and at the same time, the squeeze roller and the cleaning roller form an interference fit, so that the squeeze roller can squeeze the cleaning roller to squeeze out the sewage absorbed in the cleaning roller and accommodate it in the water guide space. Since the squeeze roller is arranged at a rearward eccentric position relative to the rotation direction of the cleaning roller, the water guide space is located at the rear and upper part of the cleaning roller. When the cleaning roller is in an unsaturated state, the sewage squeezed from the surface of the cleaning roller by the squeeze roller flows down from the cleaning roller or flows into the water guide space under the action of gravity, so as to prevent the sewage from penetrating into the ground through the water absorption of the sponge layer of the cleaning roller itself and destroying the cleaning efficiency.

[0028] The present application provides a decontamination device for a cleaning tool. Since the cleaning roller and the squeezing roller rotate simultaneously, the fine particles of garbage or hair rolled up from the surface to be cleaned by the cleaning roller may be entangled on the squeezing roller again. The evenly distributed abutment contact points on the lower surface of the free end of the roller guard plate can further block the fine particles of garbage or hair outside the decontamination device to prevent the fine particles of garbage or hair from "locking" the squeezing roller. At the same time, it is also convenient for the user to clean up the fine particles of garbage or hair blocked outside on the outside of the free end of the roller guard plate in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1A three-dimensional diagram of a cleaning tool configured with the decontamination device provided by the utility model;

[0030] Figure 2 for Figure 1 A-axis sectional view;

[0031] Figure 3 for Figure 1 Partial planing stereogram of perspective;

[0032] Figure 4 for Figure 2 A partial enlarged view of point C in the middle;

[0033] Figure 5 An exploded view of the cleaning tool provided by the utility model;

[0034] Figure 6 A three-dimensional diagram of the water guide strip and roller protection plate provided by the utility model after being installed on the fixing member;

[0035] Figure 7 A schematic diagram of the water guide strip and roller protection plate provided by the utility model being installed on a fixing member;

[0036] Figure 8 A three-dimensional diagram from another perspective after the water guide strip and the roller protection plate provided by the utility model are installed on the fixing member;

[0037] Fig. 9 A three-dimensional diagram of the squeezing roller provided by the utility model;

[0038] Fig.10 for Fig. 9 Middle D-axis sectional view;

[0039] Fig.11 An exploded view of the squeezing roller provided by the utility model;

[0040] Fig.12 A schematic diagram of a comparative example of the arrangement position of the squeezing roller body provided by the utility model;

[0041] Description of reference numerals:

[0042] 1. Clean the head housing;

[0043] X. Decontamination device;

[0044] 2. Squeeze roller;

[0045] 21. Extrusion roller body;

[0046] 22. Bearings;

[0047] 23. elastic support shaft; 231. locking member; 232. spring;

[0048] 24. Gear connecting part; 241. Fixing part; 242. Connecting part;

[0049] 3. Cleaning roller; 31. Cleaning roller body;

[0050] 4a, roller guard plate; 4a1, contact point; 4b, water support bar; 4c, fixing part;

[0051] 5. Brush;

[0052] 7. Removable shovel strips;

[0053] 8. Garbage guide;

[0054] 9. Trash box;

[0055] 10. Water tank;

[0056] 11. Driving motor;

[0057] A. Water conduction space. DETAILED DESCRIPTION

[0058] The claims of the utility model 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 utility model, not all of them. Based on the embodiments of the utility model, all other embodiments proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the utility model.

[0059] 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 utility model product is usually placed when in use, which is only for the convenience of simplifying the description of the utility model, 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.

[0060] 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.

[0061] In the present utility model, 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 there can be a physically fixed connection between components. The connection can be detachable or integrated. It can be a mechanical connection or an electrical signal connection. It can be directly connected or indirectly connected through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. 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 utility model can be understood according to specific circumstances.

[0062] The present invention will be further described below in conjunction with specific embodiments, but this is not intended to limit the present invention.

[0063] 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.

[0064] Based on this, after further research and development, the inventor proposed a decontamination device for cleaning tools to solve the above problems.

[0065] See also Figure 1 , Figure 2 , Figures 4 to 12 This embodiment provides a decontamination device X, which is mounted on the upper part of the cleaning head housing 1 and elastically abuts against the cleaning roller 3 for scrubbing the floor. The decontamination device includes a squeezing roller 2, a roller protection plate 4a, and a water support bar 4b. The front end of the cleaning head housing 1 is rotatably provided with a cleaning roller 3, and the cleaning roller 3 can be detachably connected to the cleaning head housing 1, which is convenient for maintenance or installation.

[0066] Specifically, Figure 1 , Figure 2 , Figure 4 As shown, the squeezing roller 2 is arranged above the cleaning roller 3, and the squeezing roller 2 rolls and abuts against the cleaning roller 3 above the cleaning roller 3, and forms an interference fit with the cleaning roller 3, so that the squeezing roller 2 can squeeze the cleaning roller 3 to squeeze out the sewage contained in the abutment of the cleaning roller. Figure 2 , Figure 4 As shown, the squeezing roller 2 is eccentrically arranged relative to the rotation direction of the cleaning roller 3, that is, the squeezing roller 2 is located above and behind the cleaning roller 3. The roller guard plate 4a and the water support bar 4b of the decontamination device X are arranged on the rear side of the squeezing roller 2, the bottom end of the water support bar 4b abuts against the cleaning roller 3, and the water guide tip 4b1 of the water support bar 4b close to the squeezing roller 2 abuts against the cleaning roller 3 to guide the sewage to flow along the upper surface of the water support bar 4b; the end of the roller guard plate 4a close to the squeezing roller 2 abuts against the squeezing roller 2 above the squeezing roller 2 to prevent the fine particles of garbage or hair rolled up by the squeezing roller 2 from being entangled on the squeezing roller 2; the lower surface of the roller guard plate 4a, the upper surface of the water support bar 4b, the squeezing roller 2 and the cleaning roller 3 enclose a water guide space A.

[0067] More specifically, Figure 4 As shown, the squeezing roller 2 rolls against the cleaning roller 3 at a position eccentric to the rear of the highest point on the surface of the cleaning roller 3 relative to the rotation direction of the cleaning roller 3, so as to squeeze out the sewage contained in the cleaning roller at the abutment. Under the force of gravity, the sewage squeezed from the surface of the cleaning roller 3 by the squeezing roller 2 can only flow counterclockwise downward on the surface of the cleaning roller 3 shown in the figure.

[0068] It should be noted that, in this embodiment, refer to Figure 1 , Figure 2 , the direction of travel of the cleaning tool is the right direction in the figure, which is the forward direction described in this application. The garbage referred to in this embodiment includes dry garbage, wet garbage and other garbage. Specifically, dry garbage refers specifically to non-liquid garbage, such as fruit peels, melon seed shells, rice grains, paper pieces, 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.

[0069] It should also be noted that the "extrusion roller is eccentrically arranged backward relative to the rotation direction of the cleaning roller itself" emphasized in this application is relative to the situation in which the extrusion roller of some floor scrubbers in the prior art is eccentrically arranged forward along the rotation direction of the cleaning roller itself. This solution of some floor scrubbers in the prior art will cause the sewage squeezed out by the extrusion roller to continue to drip to the ground along the upper surface of the cleaning roller along the rotation direction of the cleaning roller itself due to the action of gravity, or, even if the squeezed sewage does not drip to the ground, it will penetrate into the surface of the cleaning roller again along the rotation direction of the cleaning roller itself, causing the water content of the cleaning roller to be too high, which will cause the ground to be too wet when mopping the floor. The technical solution of "the extrusion roller is eccentrically arranged backward relative to the rotation direction of the cleaning roller itself" emphasized in this application can perfectly solve the problem of the wet ground caused by the sewage squeezed out by the extrusion roller dripping to the ground or being sucked in by the cleaning roller that continues to rotate forward.

[0070] In a specific embodiment, see Figure 2, Figure 4 , Figure 5 The cleaning roller 3 is rotatably arranged at the front end of the cleaning head housing 1, and the cleaning roller 3 and the squeezing roller 2 are detachably connected to the two side walls of the cleaning head housing 1; and the squeezing roller 2 is eccentrically arranged backward relative to the cleaning roller 3; after the squeezing roller 2 squeezes the cleaning roller 3, the sewage flowing out can be accommodated in the water guide space A. The cleaning roller 3 includes a cleaning roller body 31, and the surface of the cleaning roller body 31 is provided with a sponge layer in conventional technology, which can be used to absorb garbage, and the inner layer of the cleaning roller body 31 is provided with a rotating shaft (not shown in the figure), and 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.

[0071] A power mechanism can be set in the cleaning head housing 1 to rotate the squeezing roller 2, or no power mechanism is set, and the squeezing roller 2 rotates by the friction force of the cleaning roller body 31. When the power mechanism is set, 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 the case where 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, has no noise, and has a better water squeezing effect.

[0072] When using, refer to Figure 4 , 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 water guide 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 water support bar 4b of the decontamination device X and the cleaning roller body 31, resulting in the water guide space A being in an unclosed state, which will cause water seepage. However, since the water guide space A is set at the upper rear of the cleaning roller body 31, the seeped sewage will drip onto the cleaning roller at the rear side, or drip into the cleaning head housing 1, and will not directly drip onto the surface to be cleaned as in the prior art to reduce the cleaning efficiency.

[0073] 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 water guide space A is arranged at the upper rear 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 cleaning head shell 1 or flow into the water guide space A, instead of dripping onto the surface to be cleaned and reducing the cleaning efficiency.

[0074] In a specific embodiment, see Figures 4 to 11 The decontamination device X further includes a fixing member 4c; the water-supporting strip 4b and the roller-protecting plate 4a are both detachably connected to the fixing member 4c. Since the water-supporting strip 4b and the roller-protecting plate 4a are always in elastic contact with the cleaning roller body 31 and the squeezing roller 2, respectively, they need to be replaced when they are worn to a certain extent. The design that the water-supporting strip 4b and the roller-protecting plate 4a are both detachably connected to the fixing member 4c facilitates the user to quickly replace the corresponding components when needed.

[0075] In a specific embodiment, the fixing member 4c is connected to the two side walls of the cleaning head shell 1, and the fixing member 4c is integrally formed with the cleaning head shell 1, thereby eliminating the trouble of installing the fixing member 4c on the cleaning head shell 1 in advance during the production and manufacturing of the cleaning tool, thereby improving the production and manufacturing efficiency of the cleaning tool; on the other hand, since the fixing member 4c is detachably connected with the water-supporting strip 4b and the roller protection plate 4a which are elastically abutted against the cleaning roller body 31 and the squeezing roller 2 which are always in operation during the working process, respectively, the fixing member 4c is integrally formed with the cleaning head shell 1, which also avoids possible looseness between the fixing member 4c and the cleaning head shell 1, thereby improving the stability of the cleaning tool during operation.

[0076] In a specific embodiment, see Figure 5 , Figure 6 The fixing member 4c is detachably connected to the two side walls of the cleaning head housing 1. The fixing member 4c is connected to the cleaning head housing 1 in a detachable manner, such as a threaded connection, a snap connection, etc., to facilitate installation and maintenance.

[0077] In a specific embodiment, see Figure 4 , Figure 6 , Figure 7, the fixing member 4c is provided with at least two fixing grooves (not shown in the figure); the water-supporting strip 4b and the roller protection plate 4a each include a clamping end (not shown in the figure) and a free end (not shown in the figure), the free end of the water-supporting strip 4b is provided with a water-guiding tip 4b1, and the free end of the roller protection plate 4a is elastically abutted against the squeezing roller 2; the clamping ends of the water-supporting strip 4b and the roller protection plate 4a are provided with at least one fixing edge (not shown in the figure), and the water-supporting strip 4b and the roller protection plate 4a are detachably clamped in the fixing groove through the fixing edge. Specifically, a plurality of T-shaped fixing grooves (not shown in the figure) can be provided on the fixing member 4c, and T-shaped fixing edges (not shown in the figure) can be fixed on the water-supporting strip 4b and the roller protection plate 4a, and the water-supporting strip 4b and the roller protection plate 4a are connected to the fixing member 4c by clamping the T-shaped fixing edges with the T-shaped fixing grooves, so as to facilitate installation and disassembly. The bottom end of the water-supporting strip 4b is in contact with the cleaning roller body 31. In order to make it fit the cleaning roller body 31 completely, the end surface of the bottom end of the water-supporting strip 4b can be set to an arc shape that matches the surface of the cleaning roller body 31. The free end of the roller protection plate 4a is in contact with the squeezing roller body 21. Of course, the T-shaped fixing groove can also be a trapezoidal, dovetail-shaped or other groove shape that can achieve unidirectional sliding, and the T-shaped fixing edge can also be a trapezoidal, dovetail-shaped or other strip shape that can achieve unidirectional sliding, which will not be described one by one here.

[0078] In a specific embodiment, the clamping ends of the water-supporting strip 4b and the roller protection plate 4a are made of hard material, and the free ends of the water-supporting strip 4b and the roller protection plate 4a are made of elastic material. The clamping ends of the water-supporting strip 4b and the roller protection plate 4a are made of hard material, which can improve the stability of the clamping ends of the two in the fixing groove of the fixing member 4c. The free end of the water-supporting strip 4b is made of elastic material, which can improve the flexibility of the elastic abutment between the free end of the water-supporting strip 4b and the cleaning roller body 31, and can prevent the hard large particles of garbage rolled up by the cleaning roller body 31 from scratching the abutment of the free end of the water-supporting strip 4b. The free end of the roller protection plate 4a is made of elastic material, so that its free end can be turned around the clamping end of the roller protection plate 4a in the direction away from the squeezing roller, so as to clean the water-conducting space, the abutment point and the surface of the squeezing roller.

[0079] In a specific embodiment, the lower surface of the water-supporting strip 4b abuts against the cleaning roller body 31; in the direction opposite to the rotation direction of the cleaning roller 3, the interference between the water-supporting strip 4b and the cleaning roller body 31 gradually decreases from the water-guiding tip 4b1 downward. Figure 4 As shown in FIG. 1 , after the squeezing roller 2 squeezes the cleaning roller body 31 at point M, the amount of compression on the cleaning roller body 31 at point M is the largest point among all positions around the entire cleaning roller body 31. Figure 4In the figure, the outer surface of the cleaning roller body 31 gradually recovers to the free state in both the clockwise and counterclockwise directions from point M. In other words, the compression amount of the outer surface of the cleaning roller body 31 gradually decreases in both the clockwise and counterclockwise directions from point M. The elastic contact point between the water guide tip 4b1 and the outer surface of the cleaning roller body 31 is the first contact point encountered in the counterclockwise direction from point M. In other words, when the cleaning device moves forward to clean the surface to be cleaned, the cleaning roller rotates clockwise. In order to allow the outer surface of the cleaning roller body 31 to be gradually pressed, the first point of the decontamination device X encountered by the outer surface of the cleaning roller body 31 during clockwise rotation is the lowest point of the lower surface of the water support bar 4b. The cleaning roller body 31 continues to rotate clockwise, and the interference amount squeezed by the lower surface of the water support bar 4b in turn gradually increases until the outer surface of the cleaning roller body 31 leaves the water guide tip 4b1. The interference between the water-supporting strip 4b and the cleaning roller body 31 gradually decreases from the water-guiding tip 4b1 downward, so that the pressure on the outer surface of the cleaning roller body 31 gradually increases when the cleaning roller body 31 rotates clockwise and does not squeeze out the sewage contained in the cleaning roller body 31 that has just left the water-guiding tip 4b1. When the cleaning roller body 31 continues to rotate clockwise and encounters the squeezing roller 2, the sewage squeezed out by the squeezing roller 2 just continues to flow along a section of the surface of the cleaning roller body 31 and along the upper surface of the water-guiding tip 4b1 into the water-guiding space A.

[0080] In a specific embodiment, see Figure 4 , Figure 6 and Figure 8 The free end of the roller guard plate is provided with a plurality of contact points 4a1, which contact with the squeezing roller 2 to clean the surface of the squeezing roller 2. 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 with 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 water guide space A, and another part may adhere to the surface of the squeezing roller body 21. As the squeezing roller body 21 rotates to contact with the contact points 4a1, the contact points 4a1 peel off these garbage from the squeezing roller body 21. Since the cleaning roller body 31 and the squeezing roller 2 rotate simultaneously, the fine particles of garbage or hair rolled up from the surface to be cleaned by the cleaning roller body 31 may be entangled on the squeezing roller 2 again, and the contact points 4a1 evenly distributed on the lower surface of the free end of the roller guard plate 4a can further block the fine particles of garbage or hair outside the decontamination device X to prevent the fine particles of garbage or hair from "locking" the squeezing roller 2. At the same time, it is also convenient for the user to clean up the fine particles of garbage or hair blocked outside the free end of the roller guard plate in time.

[0081] Furthermore, the abutting contact point 4a1 is made of wear-resistant material, which can further improve the wear resistance of the abutting contact point 4a1 against continuous sliding friction on the surface of the squeezing roller 2 and extend the service life of the roller protection plate 4a.

[0082] In a specific embodiment, see Fig. 9 , Fig.10 and Fig.11 The squeezing roller 2 includes a squeezing roller body 21, a bearing 22 and an elastic support shaft 23 disposed at one end of the squeezing roller body 21, and an inner cavity (not shown in the figure) is provided in the squeezing roller body 21, and the bearing 22 cover is disposed 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, and a part of the locking member 231 is limited in the inner cavity by the bearing 22, and the locking member 231 is elastically connected to the inner wall of the inner cavity through the spring 232, and the locking member 231 extending out of the inner cavity can be locked with the cleaning head 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 cleaning head shell 1, so that the squeezing roller body 21 can be easily taken out of the cleaning head shell 1.

[0083] In a specific embodiment, see Figure 4 , the central axis of the squeezing roller body 21 deviates from the central axis of the cleaning roller body 31 by 1° to 5° in the vertical direction, that is, Figure 4 The angle range of θ in the figure is 1° to 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.12 , 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.

[0084] The inventor has conducted experiments such as Fig.12As 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. 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.

[0085] Furthermore, the surface of the squeezing roller body 21 is made of a flexible material, and the material of the contact point 4a1 is preferably a rigid material, so that the contact point 4a1 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 roller protection plate 4a can be set to a flexible material with a certain elasticity. When it is necessary to clean the garbage peeled off from the abutting strip, the roller protection plate 4a can be directly moved to keep the abutting strip away from the squeezing roller body 21, so that it can be cleaned conveniently and quickly.

[0086] The applicant's Chinese utility model 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.

[0087] To solve the above problems, see Figure 1 , Figure 5 Only one driving motor 11 is provided in the cleaning head 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 connected to the squeezing roller body 21 in a transmission manner. 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, the transmission mechanism can be driven 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.

[0088] In a specific embodiment, a brush 5 and a trash box 9 arranged below the brush 5 are arranged in the cleaning head housing 1, see Figure 5 The 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 cleaning head 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.

[0089] In a specific embodiment, see Figure 1 , Figure 5, an end torsion assembly (not shown in the figure) is arranged at one end of the driving motor 11. The transmission mechanism is a gear set (not shown in the figure), the gear set includes a driving wheel (not shown in the figure) engaged with the end torsion assembly and a first driven wheel set (not shown in the figure) meshed with the driving wheel, the first driven wheel set includes a first driven wheel (not shown in the figure), the first driven wheel meshes with the driving wheel 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 while driving the driving wheel, the driving wheel 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.

[0090] In another embodiment, the gear set includes a driving wheel engaged with the end torsion assembly and a first driven wheel set meshing with the driving wheel, and 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 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.

[0091] Specifically, an embodiment is provided in which the first driven wheel group includes two first driven wheels. Figure 1 In the embodiment, the first driven wheel on the right is meshed with the driving wheel, 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 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 .

[0092] In a specific embodiment, the gear set further includes a second driven wheel set (not shown in the figure), the second driven wheel set includes a second driven wheel (not shown in the figure), the second driven wheel is meshed with the driving wheel and connected to the squeezing roller body 21, for details, see Figures 9 to 11A 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 to rotate. The driving wheel 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 and the cleaning roller body 31 both rotate clockwise, and the second driven wheel meshing with the driving wheel 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 water squeezing effect.

[0093] In another embodiment, see Figure 1 The gear set also includes a second driven wheel set, 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, and the second driven wheel at the tail end is connected to the extrusion roller body 21.

[0094] For details, see Figure 1 , an embodiment is provided in which the second driven wheel group includes three second driven wheels, the second driven wheel located on the far right is meshed with the driving wheel, 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 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.

[0095] In a specific embodiment, see Figure 5The 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.

[0096] 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.

[0097] In a specific embodiment, see Figure 5 A 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 cleaning head 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 cleaning head 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 water guide space A, and is used to transport the sewage stored in the water guide space A back to the sewage chamber.

[0098] 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.

[0099] 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 lifted up 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 water guide 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 water guide 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.

[0100] 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 water guide 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.

[0101] 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 water guide 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.

[0102] The above are only preferred embodiments of the present invention, and do not limit the implementation mode 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 present invention specification should be included in the protection scope of the present invention.

Claims

1. A decontamination device, mounted on the upper part of the cleaning head housing and elastically abutting against a rotating cleaning roller for scrubbing the floor, characterized in that: include: A squeezing roller is mounted at a rear eccentric position in the rotation direction of the cleaning roller and is in rolling contact with the cleaning roller; The water supporting bar comprises a bottom end and a free end. The free end is provided with a water guiding tip, which is elastically abutted against the cleaning roller. The water supporting bar, the squeezing roller and the cleaning roller are enclosed to form a water guiding space.

2. The decontamination device according to claim 1, characterized in that The lower surface of the water-supporting bar abuts against the cleaning roller; against the rotation direction of the cleaning roller, the interference between the water-supporting bar and the cleaning roller gradually decreases from the water-guiding tip downwards.

3. The decontamination device according to claim 1, characterized in that: The bottom end of the water supporting strip abuts against the cleaning roller.

4. The decontamination device according to claim 1, characterized in that: Also included is a roller guard; The roller protection plate comprises a free end, and the free end of the roller protection plate is in sliding elastic contact with the squeezing roller from above.

5. The decontamination device according to claim 4, characterized in that It also includes fixings; The water-supporting strip and the roller protection plate are both detachably connected to the fixing member.

6. The decontamination device according to claim 5, characterized in that The fixing member is connected to the two side walls of the cleaning head housing, and the fixing member and the cleaning head housing are formed in one piece; or the fixing member and the two side walls of the cleaning head housing are detachably connected.

7. The decontamination device according to claim 6, characterized in that The fixing member is provided with at least two fixing grooves; The water-supporting strip and the roller protection plate each include a clamping end; the two clamping ends are each provided with at least one fixing edge, and the two fixing edges are detachably clamped in the fixing groove.

8. The decontamination device according to claim 4, characterized in that: The free end of the roller protection plate is provided with a plurality of abutment contact points, and the abutment contact points abut against the squeezing roller.

9. The decontamination device according to claim 4, characterized in that: The free end of the roller guard plate can be turned toward a direction away from the squeezing roller.

10. The decontamination device according to any one of claims 1 to 9, 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.

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