Cleaning equipment suction head and dust collector

Abstract

The cleaning equipment suction head is used for being placed on a to-be-cleaned face and cleaning the to-be-cleaned face, the cleaning equipment suction head comprises a main body shell, the main body shell comprises a lower end close to the to-be-cleaned face and an upper end away from the to-be-cleaned face, and the lower end of the main body shell is provided with an opening and a tray. The opening comprises a main opening located in the middle of the cleaning equipment suction head and a side opening located on the side edge of the cleaning equipment suction head, the middle of the main opening extends towards a connecting channel for pollutants to flow, and the side opening extends towards the rear side from the end of the main opening. The maximum length H of the overlapped part of the tray and the projection of the side opening in the first direction is 0.05-0.5 times of the diameter D of the tray; wherein the first direction is the front-back moving direction of the suction head of the cleaning equipment. The suction head of the cleaning equipment and the dust collector are used for increasing the cleaning capacity of the side edge of the suction head of the cleaning equipment and improving the cleaning effect of the suction head of the cleaning equipment.

Description

Technical Field

[0001] This utility model relates to the field of household cleaning equipment technology, and in particular to a cleaning equipment nozzle and a vacuum cleaner. Background Technology

[0002] A vacuum cleaner is a common household cleaning device, consisting of components such as a nozzle and a handle. The nozzle is placed on the floor and typically includes a suction port and a rotating mop. The suction port generates suction to pick up dust and other particles from the floor, while the mop cleans the floor through mechanical friction.

[0003] In existing vacuum cleaners, dust and other contaminants are drawn into the nozzle opening and then flow into the connecting channel. The nozzle opening is located in front of the tray, allowing dust and other contaminants in front of the tray to be drawn into the connecting channel. However, the vacuum cleaner head has limited cleaning ability for dust and other contaminants located on the side of the tray (i.e., the side of the vacuum cleaner), thus affecting the cleaning effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cleaning equipment nozzle and a vacuum cleaner, which increases the cleaning ability of the cleaning equipment nozzle's sides and improves the cleaning effect of the cleaning equipment nozzle.

[0005] This utility model is achieved through the following technical solution:

[0006] A cleaning device suction head is used to place on a surface to be cleaned and clean the surface. The cleaning device suction head includes a main body shell, which includes a lower end adjacent to the surface to be cleaned and an upper end away from the surface to be cleaned. The lower end of the main body shell is provided with an opening and a tray. The opening includes a main opening located in the middle of the cleaning device suction head and a side opening located on the side of the cleaning device suction head. The middle part of the main opening extends toward a connecting channel for the flow of contaminants. The side opening extends from the end of the main opening toward the rear. The maximum length H of the portion of the tray that overlaps with the projection of the side opening along a first direction is 0.05 to 0.5 times the diameter D of the tray. Wherein, the first direction is the back-and-forth movement direction of the cleaning device suction head.

[0007] Furthermore, the maximum length H of the portion of the tray that overlaps with the side opening projection along the first direction is 13-19 mm; the diameter D of the tray is 120-180 mm.

[0008] Furthermore, the main body shell is provided with a suction port, which is connected to the opening, and one end of the connecting channel extends to be connected to the opening; external pollutants are sequentially sucked into the cleaning device suction head through the suction port, the opening, and the connecting channel.

[0009] Furthermore, the opening includes a front inner wall and a rear side wall arranged in a first direction. At the middle of the cleaning device suction head, the distance between the rear side wall and the front inner wall is the largest; at both ends of the opening, the distance between the rear side wall and the front inner wall is the smallest.

[0010] Furthermore, the front inner wall is provided with protrusions, which are correspondingly provided with the suction port.

[0011] Furthermore, it also includes a brush strip, which is installed on the main body shell and divides the main body shell to form an opening and a second space. The brush strip blocks external pollutants from entering the second space and concentrates the suction provided by the connecting channel in the opening.

[0012] Furthermore, the brush bar includes a main body portion disposed in the middle part of the main body shell and an extension portion connected to the side of the main body portion. The main body portion is configured to conform to the outline of the main opening, and the extension portion is configured to conform to the outline of the side opening.

[0013] Furthermore, the brush bar also includes a climbing section, which is connected to the extension section, and the climbing section climbs to the side wall of the main body shell and protrudes from the main body shell;

[0014] The main body, the climbing part, and the extension part are either integrally formed or segmented.

[0015] Furthermore, the suction port is recessed from the front end of the main body shell toward the rear end, and the size of the suction port gradually decreases from the front end of the main body shell toward the rear end. The suction port includes a bottom recessed from the lower end of the main body shell toward the upper end. The bottom constitutes the outer surface of the suction port, and the height of the bottom from the surface to be cleaned gradually decreases from the suction port toward both ends.

[0016] Furthermore, multiple suction ports are provided, and the multiple suction ports are located at the same end of the main body shell, and the multiple suction ports are distributed at intervals along the circumference of the main body shell; each suction port gradually decreases in size from the lower end of the main body shell toward the upper end.

[0017] Furthermore, the plurality of suction ports include a first suction port located in the middle of the main body shell and a second suction port located at the edge of the main body shell, wherein the size of the first suction port is larger than the size of the second suction port.

[0018] Furthermore, it also includes a tray and a rotatable front wheel for contacting the surface to be cleaned. The front wheel is positioned between the tray and the opening, and the brush strip blocks the connection between the front wheel and the opening.

[0019] Furthermore, the second space is provided with a front wheel mounting groove, which is located between the brush strip and the tray. A portion of the front wheel is housed in the front wheel mounting groove, and the front wheel is rotatably mounted on the main body shell.

[0020] A vacuum cleaner comprising any of the cleaning device heads described above.

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] By setting a main opening to clean the center of the cleaning device head and a side opening to clean the sides, the cleaning ability of the front of the cleaning device head can be effectively increased while ensuring the cleaning ability of the front of the cleaning device head, thereby improving the cleaning effect of the cleaning device head. By making the maximum length of the portion of the tray that overlaps with the projection of the side opening along the first direction 0.05 to 0.5 times the diameter of the tray, the cleaning ability of the opening is maximized without affecting the lateral dimensions of the cleaning device head. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a cleaning device suction head according to an embodiment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of the suction head of a cleaning device according to another embodiment of the present invention;

[0025] Figure 3 This is a structural schematic diagram of the cleaning device suction head according to another embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the cleaning device suction head according to an embodiment of the present invention from another perspective;

[0027] Figure 5 This is a partial cross-sectional view of the cleaning device suction head according to another embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the brush strip in the suction head of a cleaning device according to an embodiment of the present invention;

[0029] Figure 7 This is an exploded view of the brush strip in the suction head of a cleaning device according to an embodiment of the present invention;

[0030] Figure 8This is a partial structural schematic diagram of a cleaning device suction head according to an embodiment of the present invention;

[0031] Figure 9 This is another partial structural schematic diagram of the cleaning device suction head according to an embodiment of the present utility model;

[0032] Figure 10 This is another partial structural schematic diagram of the cleaning device suction head according to an embodiment of the present utility model;

[0033] Figure 11 This is a partial cross-sectional view of a part of the suction head of a cleaning device according to an embodiment of the present invention;

[0034] Figure 12 This is a cross-sectional view of a vacuum cleaner according to an embodiment of the present invention;

[0035] Figure 13 This is an exploded view of a vacuum cleaner according to an embodiment of the present invention.

[0036] In the diagram: 1. Main body shell; 11. Suction port; 111. First suction port; 112. Second suction port; 11a. Bottom; 11b. Side; 11c. Top surface; 12. Opening; 121. Main opening; 122. Side opening; 12a. Front inner wall; 121a. Protrusion; 12b. Rear side wall; 2. Tray; 3. Brush bar; 32. Second space; 33. Climbing part; 34. Extension part; 35. Main body; 4. Connecting channel; 41. Connecting hole; 5. Searchlight assembly; 51. Lighting lamp; 52. Mounting plate; 53. Fixing plate; 54. Pressure plate; 6. Fluid channel; 7. Front wheel; 13. Front wheel mounting groove; 100. Cleaning equipment suction head; 200. Body; 300. Floor brush. Detailed Implementation

[0037] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] like Figure 1 As shown, a cleaning device suction head, corresponding to a preferred embodiment of the present invention, is used to clean a surface to be cleaned through methods such as vacuuming and mechanical friction. The surface to be cleaned can be a floor, and the cleaning device can be a vacuum cleaner. The cleaning device suction head may include components such as a main body shell 1, a tray 2, and a brush strip 3.

[0039] The main body shell 1 may include a lower end and an upper end opposite to each other along the height direction of the cleaning device suction head, with the lower end close to the surface to be cleaned and the upper end away from the surface to be cleaned. The lower end of the main body shell 1 may be provided with at least one suction port 11, which is used to suck up dust and other contaminants from the outside, so that the contaminants on the surface to be cleaned are sucked into the cleaning device suction head, thereby cleaning the surface to be cleaned.

[0040] Existing vacuum cleaner heads have elongated, narrow suction ports. The suction power provided by the connected motor and other components is limited, and the elongated port disperses the suction, resulting in reduced overall suction strength. (Refer to...) Figure 1 and Figure 3In this application, the suction port 11 is recessed from the lower end of the main body shell 1 towards the upper end, and the size of the suction port 11 gradually changes from the lower end of the main body shell 1 towards the upper end. For example, the size of the suction port 11 gradually increases or gradually decreases from the lower end of the main body shell 1 towards the upper end. As a preferred embodiment, the size of the suction port 11 gradually decreases from the lower end of the main body shell 1 towards the upper end. By setting the size of the suction port 11 to gradually change from the lower end of the main body shell 1 towards the upper end, the suction port 11 forms a funnel-shaped structure, which can reduce the overall size of the suction port 11. The smaller suction port 11 can concentrate the suction force, thereby increasing the suction force at the suction port 11 without changing the power of the vacuum cleaner motor. This allows the suction port 11 to more easily suck up large-sized contaminants, improving the cleaning effect of the cleaning equipment's suction head. At the same time, it can also reduce the risk of large-sized contaminants moving to the tray 2 and contaminating the tray 2, reducing the frequency of cleaning or replacing the cloth on the tray 2 and improving the cleaning effect of the cleaning equipment's suction head.

[0041] Multiple suction ports 11 can be provided, and the size of each suction port 11 can gradually decrease from the lower end to the upper end of the main body shell 1. Multiple suction ports 11 are located at the same end of the main body shell 1 and are spaced apart circumferentially along the main body shell 1. By providing multiple suction ports 11, the suction area for contaminants drawn in by the cleaning device's suction head can be increased, thereby improving the cleaning efficiency of the cleaning device. Specifically, multiple suction ports 11 are located at the same end of the main body shell 1; for example, the main body shell 1 includes opposing front and rear ends along a first direction, and multiple suction ports 11 are located at the front end of the main body shell 1. This first direction is specifically the back-and-forth movement direction of the cleaning device's suction head.

[0042] Reference Figures 2 to 4 In some specific embodiments, the multiple suction ports 11 may include a first suction port 111 located in the middle of the main body shell 1 and a second suction port 112 located at the edge of the main body shell 1. In the cleaning device suction head, the connection channel 4 between the first suction port 111 located in the middle of the main body shell 1 and the vacuum motor is shorter, while the connection channel 4 between the second suction port 112 located at the edge of the main body shell 1 and the vacuum motor is longer. Therefore, the suction power at the second suction port 112 may be weaker than that at the first suction port 111. Furthermore, when the cleaning device suction head is working, contaminants are mainly drawn into the cleaning device suction head through the middle of the main body shell 1, while the contaminants located at the edge of the main body shell 1 are mainly small particulate contaminants such as floating dust. In this embodiment, the size of the first suction port 111 can be larger than the size of the second suction port 112. The smaller size of the second suction port 112 ensures that the suction power is concentrated, so that the suction power at the second suction port 112 is not significantly weaker than that at the first suction port 111, thus ensuring the cleaning effect of the second suction port 112.

[0043] The first suction port 111 and the second suction port 112 can be connected to an external vacuum cleaner motor via a connecting channel 4. One end of the connecting channel 4 extends to the lower end of the main body shell 1 and penetrates the main body shell 1 to form a connecting hole 41. The connecting channel 4 provides suction to the space connected to the connecting hole 41 via the vacuum cleaner motor. The connecting hole 41 is located in the middle of the main body shell 1; therefore, the distance between the first suction port 111 and the connecting hole 41 is shorter than the distance between the second suction port 112 and the connecting hole 41. The connecting hole 41 can communicate directly or indirectly with the first suction port 111 and the second suction port 112. The middle of the main body shell 1 refers to the middle part of the main body shell 1 along the second direction, and the edge of the main body shell 1 refers to the edge position of the main body shell 1 along the second direction. The second direction is perpendicular to the first direction, and the second direction can specifically be the width direction of the cleaning device's suction head.

[0044] Further reference Figure 8 and Figure 9 The suction port 11 includes a bottom 11a forming the outer surface of the lower part of the main body shell 1. In the height direction, the bottom 11a protrudes towards the upper end of the main body shell 1, allowing the size of the suction port 11 to gradually increase from the lower end to the upper end of the main body shell 1, so as to allow contaminants to enter the opening through the suction port. In a first direction, the bottom 11a protrudes towards the connecting hole 41, so that the suction port 11 has two opposing side surfaces 11b. The suction port 11 also has a top surface 11c connecting the two side surfaces 11b. The top surface 11c gradually extends closer to the surface to be cleaned in the first direction. By setting the side surfaces 11b and the top surface 11c, the size of the suction port 11 can gradually decrease from the front end to the rear end of the main body shell 1, so that the suction port 11 can extract more contaminants. In the prior art, the size of the suction port 11 is usually set to gradually decrease in order to increase the fluid flow rate at the suction port, but this can also prevent large particles of contaminants from passing through, thus causing blockage. This patent solves the problem of easy blockage at the end of the suction port 11 near the opening 12 by overlapping the top of the bottom 11a with the end of the top surface 11c.

[0045] Reference Figure 2 and Figure 12In some specific embodiments, the connecting channel 4 formed by the main body shell 1 serves as part of the fluid channel 6 for supplying airflow and carrying contaminants in the airflow. A connecting hole 41 at one end of the connecting channel 4 communicates with the suction port 11 through an opening 12. The suction port 11 facilitates the intake of dust and other contaminants into the opening 12. The contaminants flow sequentially through the suction port 11, the opening 12, and the connecting hole 41 into the connecting channel 4, and then along the fluid channel 6 towards the vacuum cleaner motor. The opening 12 may include a main opening 121 located in the middle of the cleaning device's suction head and a side opening 122 located on the side of the cleaning device's suction head and communicating with the main opening 121. In the first direction, the rear side of the main opening 121 extends toward the connecting hole 41. Since the connecting hole 41 is located in the middle of the main opening 121, the distance between the middle of the main opening 121 and the connecting hole 41 is relatively small, while the distance between the side of the main opening 121 and the connecting hole 41 is relatively large. By extending the rear side of the main opening 121 toward the connecting hole 41, the main opening 121 forms a structure that extends backward in the middle and narrows upward at both ends. The width of the opening 12 is the largest in the middle, and the width of the opening 12 gradually decreases from the middle of the opening 12 toward the side of the opening 12. The middle of the main opening 121 is closest to the connecting hole 41, i.e., to the fluid channel 6, and the suction force is the greatest in the middle of the main opening 121. Therefore, setting the width of the middle of the opening 12 to be larger can also ensure that the suction force can meet the requirements. On the other hand, the distance between the two sides of the main opening 121 and the fluid channel 6 is relatively large, and the suction force is reduced. Setting the width of the side of the main opening 121 to be smaller can ensure that the suction force can meet the requirements.

[0046] To improve the cleaning ability of the cleaning device's suction head corners, side openings 122 are connected to both ends of the main opening 121. The side openings 122 extend rearward from the ends of the main opening 121. The side openings 122 can cooperate with the second suction port 112 to clean the corner areas of the cleaning device, thereby improving the cleaning ability of the corners. Specifically, the side openings 122 extend rearward beyond the main opening 121, so that the rearmost end of the side openings 122 is further rearward than the rearmost end of the main opening 121, further enhancing the cleaning ability at the side openings 122, i.e., the corners of the cleaning device's suction head.

[0047] Further reference Figure 10 and Figure 11The opening 12 includes a front inner wall 12a and a rear side wall 12b arranged front and rear in a first direction. The distance between the front inner wall 12a and the rear side wall 12b is the width of the opening 12. At the middle of the suction head of the cleaning device, the distance between the rear side wall 12b and the front inner wall 12a is the largest, meaning the opening 12 is widest at this location. At both ends of the opening 12, the distance between the rear side wall 12b and the front inner wall 12a is the smallest, meaning the opening 12 is narrowest at these locations. The front inner wall 12a is provided with a protrusion 121a, which corresponds to the suction port 11. In this embodiment, the second suction port 112 corresponds to a smaller opening 12 width. To ensure fluid flow, the second suction port 112 does not have a top surface 11c and a side surface 11b. In other embodiments, when the opening width is larger, a top surface 11c and a side surface 11b can be provided on the second suction port 112.

[0048] Reference Figure 1 and Figure 2 The brush strip 3 is installed on the main body shell 1, specifically at the lower end of the main body shell 1. The brush strip 3 divides the main body shell 1 into the aforementioned opening 12 and the second space 32, which are located on opposite sides of the brush strip 3 along a first direction. The opening 12 can communicate with the connecting hole 41 formed by the suction port 11 and the connecting channel 4. The second space 32 can be used to accommodate the tray 2. The brush strip 3 can include dense bristles that separate the opening 12 and the second space 32. The first suction port 111 and the second suction port 112 communicate with the connecting hole 41 through the opening 12, respectively. External contaminants are sucked into the opening 12 through the first suction port 111 or the second suction port 112, and then enter the connecting channel 4 through the opening 12. The outline of the brush strip 3 is adapted to the outline of the opening 12, that is, the extended outline of the brush strip 3 is the same as the corresponding part of the outline of the opening 12. In addition, multiple suction ports 11 can also be adapted to the outline of the opening 12, for example, multiple suction ports 11 are arranged sequentially at intervals along a part of the outline of the opening 12. The outline of multiple suction ports 11 and the brush strip 3 together form the opening 12.

[0049] By using brush strip 3 to separate opening 12 and the second space 32, contaminants not sucked into fluid channel 6 at opening 12 can be prevented from moving into the second space 32 and contaminating the tray 2. Furthermore, the separation by brush strip 3 can also concentrate the suction provided by connecting channel 4 within opening 12, increasing the vacuum level within opening 12, increasing the suction power of suction port 11, and thus improving the cleaning effect of the cleaning device's suction head.

[0050] Reference Figure 4 and Figure 6The brush strip 3 can rise to the side wall of the main body shell 1 along the second direction to improve the cleaning ability at the corners of the cleaning device's suction head. Specifically, the brush strip 3 includes a first part and a second part. The first part of the brush strip 3 is located below the main body shell 1, with one end extending to one side of the main body shell 1 and the other end extending to the opposite side of the main body shell 1. The second part of the brush strip 3 rises from the end of the first part to the side wall of the main body shell 1 along the height direction. There can be two second parts of the brush strip 3, each second part connected to one end of the first part, and the two second parts are located on opposite sides of the main body shell 1.

[0051] The portion of the brush strip 3 that rises to the side wall of the main body shell 1 protrudes from the side wall. Therefore, when the main body shell 1 is about to collide with other objects, such as the baseboard of a wall, the brush strip 3 will first contact the baseboard, thus preventing the main body shell 1 from colliding with the baseboard or reducing damage to both the main body shell 1 and the baseboard during the collision. The second portion of the brush strip 3 is adjacent to the second suction port 112, so that the suction force at the second suction port 112 is blocked by the second portion of the brush strip 3 and thus concentrated at the second suction port 112, improving the adsorption capacity of the second suction port 112.

[0052] The brush bar 3 includes a main body 35 disposed in the middle portion of the main body shell 1, a climbing portion 33 for climbing to the side wall of the main body shell 1, and an extension portion 34 connecting the main body 35 and the climbing portion 33. Both the main body 35 and the extension portion 34 of the brush bar 3 are stacked with the main body shell 1 along the height direction, and the main body 35 and the extension portion 34 constitute the first part of the brush bar 3. The main body 35 and the extension portion 34 are adapted to the contour of the opening 12. Specifically, the main body 35 is adapted to the contour of the main opening 121, and corresponding to the main opening 121, the middle portion of the main body 35 extends rearward, forming a structure that extends rearward in the middle and tapers upward at both ends. The extension portion 34 corresponds to the contour of the side opening 122, and extends rearward from the end of the main body 35. The climbing portion 33 of the brush bar 3 forms the second part of the brush bar 3; the climbing portion 33 climbs to the side wall of the main body shell 1 from the end of the extension portion 34.

[0053] Brush bar 3 can be a one-piece structure. Alternatively, brush bar 3 can be a separate structure. See details... Figure 7The main body 35, the climbing part 33, and the extension part 34 of the brush bar 3 can be molded separately to form a split structure. The connection between the main body 35 and the extension part 34 of the brush bar 3 will have a significant angular change. For example, the main body 35 may have a structure that extends backward in the middle and tapers upward at both ends, while the extension part 34 may have an arc-shaped structure formed by bending backward from the end of the main body 35. The overall curvature change of the main body 35 and the curvature change of the extension part 34 can be small to facilitate the processing of the main body 35 and the extension part 34. Two climbing parts 33 and two extension parts 34 can each be provided. The two climbing parts 33 are located on opposite sides of the main body shell 1, and each climbing part 33 is connected to the main body 35 through a corresponding extension part 34.

[0054] The tray 2 is rotatably mounted on the lower end of the main body shell 1. The tray 2 can contact the surface to be cleaned, and the tray 2 can clean the surface by mechanical friction, for example, by friction between the tray 2 and the surface to be cleaned when rotating. Multiple trays 2 can be provided, arranged along the second direction. In this embodiment, two trays 2 can be specifically provided.

[0055] Reference Figure 2 In some specific embodiments, multiple first suction ports 111 and multiple second suction ports 112 can be provided. Multiple first suction ports 111 are spaced apart along a first direction, and multiple second suction ports 112 are spaced apart along a second direction. Therefore, multiple first suction ports 111 and multiple second suction ports 112 will form a distribution space. This distribution space, the opening 12, and the tray 2 are arranged sequentially in the first direction.

[0056] The opening 12 can partially overlap with the tray 2 along the first direction. Specifically, the maximum length H1 of the overlapping portion of the side opening 122 and the tray 2 along the first direction is the same as the maximum length H2 of the overlapping portion of the main opening 121 and the tray 2 along the first direction. In this embodiment, the main opening 121 and the tray 2 do not overlap. The maximum length H (i.e., H1) of the overlapping portion of the tray 2 and the opening 12 along the first direction is 0.05 to 0.5 times the diameter D of the tray 2, so as to maximize the cleaning ability of the opening 12 without affecting the lateral dimensions of the cleaning device's suction head. The maximum length H of the overlapping portion of the tray 2 and the opening 12 along the first direction can be 13 to 19 mm; the diameter D of the tray 2 can be 120 to 180 mm.

[0057] Further reference Figure 10In some specific embodiments, the cleaning device suction head is also provided with a front wheel 7, and the second space 32 is provided with a front wheel mounting groove 13. The front wheel 7 is fixed in the front wheel mounting groove 13 by a metal shaft or the like, so that the front wheel 7 can rotate relative to the main body shell 1; and a part of the front wheel 7 can protrude out of the front wheel mounting groove 13 to contact the surface to be cleaned. When it is necessary to drag the cleaning device suction head to move, the front wheel 7 contacts the surface to be cleaned and rotates around the metal shaft to reduce the resistance of the cleaning device suction head 100 to the surface to be cleaned. The front wheel mounting groove 13 is located between the tray 2 and the opening 12, specifically between the brush strip 3 and the tray 2. Through the obstruction of the brush strip 3, the contaminants located at the opening 12 cannot or have difficulty moving to the front wheel 7. Furthermore, even if a small part of the contaminants is sucked into the cleaning device suction head 100 at the opening 12, the impact of this small part of the contaminants on the front wheel 7 is small, thereby reducing the risk that the front wheel 7 will be contaminated by dirt and unable to rotate normally.

[0058] Reference Figure 3 and Figure 5 In some specific embodiments, the cleaning device suction head is also provided with a searchlight assembly 5, which includes a lighting lamp 51 for illumination. The lighting lamp 51 is exposed outside the main body shell 1 and is installed near the lower end of the main body shell 1 so that the lighting lamp 51 is close to the surface to be cleaned, thereby improving the lighting effect of the lighting lamp 51.

[0059] To facilitate the installation of the spotlight assembly 5, the cleaning equipment suction head is equipped with a mounting plate 52, a fixing plate 53, and a pressure plate 54. The spotlight assembly 5 is fixedly installed on the mounting plate 52, for example, by welding, bonding, or screw fixing. After the spotlight assembly 5 is installed on the mounting plate 52, the mounting plate 52 is installed inside the cleaning equipment suction head. The fixing plate 53 is fixedly installed on the main body shell 1 with screws and presses firmly to secure the mounting plate 52. The pressure plate 54 is pressed on top of the mounting plate 52 to fix the mounting plate 52. The mounting plate 52 is doubly fixed by the fixing plate 53 and the pressure plate 54, ensuring the stability of the mounting plate 52 and the spotlight assembly 5 installed on it.

[0060] Reference Figure 12 and Figure 13This utility model also provides a vacuum cleaner, which serves as a cleaning device and can employ the aforementioned cleaning device nozzle 100. The vacuum cleaner also includes a body 200. The body 200 is detachably connected to the cleaning device nozzle 100. The body 200 can be connected to the cleaning device nozzle 100 to polish or wet-clean the surface to be cleaned via the tray 2 of the cleaning device nozzle 100. In addition to being connected to the cleaning device nozzle 100, the body 200 can also be connected to a floor brush 300. When the body 200 is connected to the floor brush 300, the vacuum cleaner can be used for dry cleaning. By connecting the body 200 to the cleaning device nozzle 100, the floor brush 300, or other components, the vacuum cleaner can be applied to various scenarios. Specifically, the body 200 may include a handle for the user to hold, a vacuum motor for generating suction, a cyclone separator for separating contaminants, and a power supply for providing electrical energy.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cleaning device head for placement on and cleaning of a surface to be cleaned, characterized in that, The cleaning device suction head comprises a main body shell (1), the main body shell (1) comprises a lower end close to a surface to be cleaned and an upper end away from the surface to be cleaned, the lower end of the main body shell (1) is provided with an opening (12) and a mop plate (2), the opening (12) comprises a main opening (121) in the middle of the cleaning device suction head and a side opening (122) at the side of the cleaning device suction head, the middle of the main opening (121) extends towards a connecting channel (4) for the flow of pollutants, the side opening (122) extends from the end of the main opening (121) towards the back side, the maximum length H of the part of the mop plate (2) which is projected and coincides with the side opening (122) in the first direction is 0.05-0.5 times the diameter D of the mop plate (2); wherein the first direction is the front-back movement direction of the cleaning device suction head.

2. A cleaning device head according to claim 1, characterised in that, The maximum length H of the part of the mop plate (2) which is projected and coincides with the side opening (122) in the first direction is 13-19 mm; the diameter D of the mop plate (2) is 120-180 mm.

3. The cleaning device of claim 1, wherein, The main body shell (1) is provided with a suction port (11), the suction port (11) is in communication with the opening (12), one end of the connecting channel (4) extends to the opening (12) in communication; external pollutants are sucked into the cleaning device suction head through the suction port (11), the opening (12) and the connecting channel (4) in turn.

4. A cleaning device head according to claim 3, characterised in that, The opening (12) comprises a front inner wall (12a) and a back side wall (12b) arranged in the first direction front and back, in the middle of the cleaning device suction head, the back side wall (12b) is farthest from the front inner wall (12a); at both ends of the opening (12), the back side wall (12b) is closest to the front inner wall (12a).

5. A cleaning device head as claimed in claim 4, characterised in that, The front inner wall (12a) is provided with a protrusion (121a), the protrusion (121a) is arranged correspondingly with the suction port (11).

6. The cleaning device of claim 1, wherein, It also comprises a brush strip (3), the brush strip (3) is installed on the main body shell (1) and separates the main body shell (1) to form an opening (12) and a second space (32), the brush strip (3) blocks external pollutants from entering the second space (32) and concentrates the suction force provided by the connecting channel (4) in the opening (12).

7. A cleaning device head as claimed in claim 6, characterised in that, The brush strip (3) comprises a main body part (35) arranged in the middle part of the main body shell (1) and an extension part (34) connected to the side of the main body part (35), the main body part (35) is contoured with the main opening (121), and the extension part (34) is contoured with the side opening (122).

8. A cleaning device head according to claim 7, characterised in that, The brush strip (3) further comprises a climbing part (33), the climbing part (33) is connected with the extension part (34), and the climbing part (33) climbs to the side wall of the main body shell (1) and protrudes from the main body shell (1); Wherein, the main body part (35), the climbing part (33) and the extension part (34) are integrally arranged or segmented.

9. The cleaning device of claim 3, wherein, The suction port (11) is recessed from the front end of the main body shell (1) towards the rear end, the size of the suction port (11) gradually decreases from the front end of the main body shell (1) towards the rear end, the suction port (11) comprises a bottom (11a) recessed from the lower end of the main body shell (1) towards the upper end, the bottom (11a) constitutes the outer surface of the suction port (11), and the height of the bottom (11a) from the suction port to the surface to be cleaned gradually decreases from the two ends.

10. A cleaning device head as claimed in claim 9, characterised in that, A plurality of the suction ports (11) are provided, the plurality of the suction ports (11) are provided at the same end of the main body shell (1), and the plurality of the suction ports (11) are spaced apart along the circumference of the main body shell (1); each of the suction ports (11) gradually decreases from the lower end of the main body shell (1) towards the upper end.

11. A cleaning device head as claimed in claim 10, characterised in that, The plurality of the suction ports (11) comprise a first suction port (111) located at the middle of the main body shell (1) and a second suction port (112) located at the edge of the main body shell (1), the size of the first suction port (111) is greater than the size of the second suction port (112).

12. The cleaning device of claim 6, wherein, Further comprising a mop plate (2) and a rotatable front wheel (7), the front wheel (7) is used to abut against the surface to be cleaned, the front wheel (7) is provided between the mop plate (2) and the opening (12), and the front wheel (7) and the opening (12) are blocked by the brush strip (3).

13. A cleaning device head as claimed in claim 12, characterised in that, The second space (32) is provided with a front wheel mounting groove (13), the front wheel mounting groove (13) is provided between the brush strip (3) and the mop plate (2), a part of the front wheel (7) is accommodated in the front wheel mounting groove (13), and the front wheel (7) is rotatably mounted on the main body shell (1).

14. A vacuum cleaner comprising: The cleaning device suction head comprises the cleaning device suction head according to any one of claims 1 to 13.

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