Cover plate assembly and scrubber

Abstract

The invention relates to the technical field of cleaning equipment, and discloses a cover plate assembly and a scrubber, the cover plate assembly covers a cleaning head shell of the scrubber, the cover plate assembly comprises a cover plate and a base, the cover plate is in lap joint right above an opening of a garbage box of the cleaning head shell, and the base is in lap joint with the cover plate. A first containing cavity for protecting a cleaning roller installed in the cleaning head shell is defined by the cover plate. The base comprises a left side plate, a right side plate, a front side plate, a rear side plate and a guide plate, wherein the left side plate, the right side plate, the front side plate and the rear side plate extend downwards from the cover plate and define a rectangular frame, the guide plate covers the rectangular frame, and a second containing cavity is defined by the guide plate. The first containing cavity and the second containing cavity are communicated with each other so as to form a containing space used for containing a cleaning component. The cover plate assembly can be conveniently and directly separated from the cleaning head shell, and the efficiency of disassembling and assembling parts in the cleaning head shell is improved. The scrubber provided with the cover plate assembly is easier to maintain.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202310573262.6, entitled "Cover plate assembly and floor cleaning machine", the content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of cleaning equipment, in particular to a cover plate assembly and a floor cleaning machine. BACKGROUND

[0003] With the improvement of people's living and consumption level, floor cleaning equipment is favored by more and more families. In recent years, various cleaning equipment has appeared on the market, such as floor cleaning machines, sweeping robots, etc. However, most of the cover plate structures and installation shells of the floor cleaning machines are integrated. When the cleaning assembly inside the floor cleaning machine is damaged, the entire installation shell must be disassembled before the damaged cleaning assembly can be removed, which is very cumbersome. SUMMARY

[0004] In order to overcome the technical problem that the cleaning assembly inside the floor cleaning machine of the prior art can only be removed after the entire installation shell is disassembled when the cleaning assembly is damaged, the present application provides a cover plate assembly and a floor cleaning machine.

[0005] The technical solution adopted by the present application to solve its technical problems is:

[0006] In a first aspect, the present application provides a cover plate assembly, which is arranged on a cleaning head shell of a floor cleaning machine, and the cover plate structure comprises:

[0007] a cover plate, which is arranged on the cleaning head shell and covers a first accommodating cavity of a cleaning roller arranged in the cleaning head shell;

[0008] a base, which comprises a left side plate, a right side plate, a front side plate, a rear side plate and a guide plate arranged on a rectangular frame formed by the left side plate, the right side plate, the front side plate and the rear side plate extending downward from the cover plate, and the guide plate surrounds a second accommodating cavity;

[0009] wherein the first accommodating cavity and the second accommodating cavity are in communication with each other to form an accommodating space for accommodating cleaning components.

[0010] In one or some optional embodiments, the two groups of opposite side plates of the base are provided with buckle members for buckling the guide plate.

[0011] In one or some optional embodiments, the cover plate comprises an arc-shaped portion and a flat portion connected in sequence, and the base extends downward from the flat portion.

[0012] In one or some optional embodiments, the cover plate assembly further comprises at least two clamping pieces arranged at both ends of the arc-shaped portion, which respectively elastically abut against two clamping plates of the cleaning head housing for clamping the cleaning roller.

[0013] In one or some optional embodiments, the straight portion is connected to the base at both sides to form stepped ends, the width of the base is matched with the width of the opening of the dust box of the cleaning head housing, and the stepped ends abut against the inner side wall and the top wall of the clamping plate.

[0014] In one or some optional embodiments, the cover plate further comprises a plurality of reinforcing ribs arranged at intervals between the inner side walls of the arc-shaped portion.

[0015] In one or some optional embodiments, each of the reinforcing ribs is in a curved shape and elastically abuts against the surface of the cleaning roller.

[0016] In one or some optional embodiments, the guide plate comprises a guide tip portion, a guide arc portion and a straight extension portion which are sequentially and smoothly connected, the guide tip portion is clamped with the front side plate, the straight extension portion is clamped with the front side plate, and the guide arc portion is clamped with the left side plate and the right side plate.

[0017] In one or some optional embodiments, the cover plate and the base enclose a third accommodating cavity which defines the elastic extension direction of the locking device.

[0018] In one or some optional embodiments, the locking device comprises a pair of elastic members which abut against one end of the third accommodating cavity, a pair of locking sliders which abut against the other end of the elastic members and extend out of the side plates of the base, and a pair of elastic knobs which are clamped on the locking sliders, and the locking sliders are slidable along the axis direction of the elastic members.

[0019] In one or some optional embodiments, the middle portion of the straight portion extends towards the third accommodating cavity to form an abutment plate which abuts against one end of the elastic members, and the middle portion of the straight portion is recessed towards the third accommodating cavity at both sides of the abutment plate to form sliding grooves for the sliding of the elastic knobs along the axis direction of the elastic members.

[0020] In one or some optional embodiments, one end of the locking slider away from the elastic members is provided with a locking tongue which extends out of the side plates of the base, and the locking tongue elastically abuts against the inner side wall of the clamping plate in the locked state.

[0021] In the second aspect, the present application further provides a scrubber, wherein the scrubber is provided with the cover plate assembly as described in the first aspect.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] When the parts inside the cleaning head shell of the scrubber are damaged, the cover plate assembly is removed from the cleaning head shell, opening the opening of the front part of the cleaning roller and the upper part of the garbage box of the scrubber; on the contrary, when the cover plate assembly is assembled, the base is clamped on the opening of the front part of the cleaning roller and the upper part of the garbage box, covering the opening of the cleaning head shell of the scrubber. The cover plate assembly separated from the cleaning head shell directly improves the efficiency of disassembling and assembling the parts inside the cleaning head shell.

[0024] The specific technical solutions and beneficial effects of the present application will be described in detail in the specific embodiments below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained from the structures shown in the drawings without creative labor for those skilled in the art.

[0026] Figure 1 is a perspective view of the cover plate assembly of the present application installed on the scrubber;

[0027] Figure 2 is a schematic view of the cover plate assembly of the present application installed on the scrubber in a central cross section;

[0028] Figure 3 is a perspective view of the cover plate assembly of the present application.

[0029] Figure 4 is a perspective view of the cover plate assembly of the present application after the brush guide plate is removed.

[0030] Figure 5 is a front view of the cover plate assembly of the present application.

[0031] Figure 6 is Figure 5 A-directional sectional view.

[0032] Figure 7 is Figure 5 B-directional sectional view.

[0033] Figure 8 is an exploded view of the cover plate structure of the present application;

[0034] Reference signs:

[0035] 1, cleaning head shell; 11, first clamping plate; 12, second clamping plate;

[0036] 2, cover plate assembly;

[0037] 21. Cover plate body;

[0038] 211. Arc-shaped part; 2111. Reinforcing rib; 2112. Elastic snap-fit ​​piece; 212. Straight part; 2121. Sliding groove;

[0039] 22. Base;

[0040] 221. Left side panel; 222. Right side panel; 2222. Reinforcing rib hook; 223. Front side panel; 2231. Clip groove; 2232. Reinforcing rib hook; 224. Rear side panel; 2241. Clip groove; 2242. Reinforcing rib hook;

[0041] 23. Guide plate; 231. Guide tip; 2311. Hook; 232. Straight extension; 2321. Hook; 233. Guide arc;

[0042] 24. Locking device; 241. Locking slider; 241a. Locking tongue; 242. Elastic element; 243. Elastic latch;

[0043] M, first accommodating cavity; N, second accommodating cavity;

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0047] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0049] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the control circuits of the controllers, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the control process of the software or programs involved, this pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0050] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0051] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0052] As analyzed in the background section of this application, in order to solve the technical problem that in the prior art, the cover plate structure and the mounting shell of some floor scrubbers are integrated, and if the cleaning components inside the floor scrubber are damaged, the entire mounting shell must be disassembled to remove the damaged cleaning components, this application provides a cover plate assembly and a floor scrubber.

[0053] Firstly, such as Figures 1 to 8 As shown, an embodiment of the present invention provides a cover plate assembly 2, which is installed on the cleaning head housing 1 of a floor scrubber. The cover plate assembly 2 includes a cover plate 21 and a base 22. The cover plate 21 overlaps directly above the opening of the dustbin (not shown in the figure) of the cleaning head housing 1. The cover plate 21 encloses a first receiving cavity M that protects the cleaning roller (not shown in the figure) installed inside the cleaning head housing 1. The base 22 includes a left side plate 221, a right side plate 222, a front side plate 223, a rear side plate 224 extending downward from the cover plate 21 and forming a rectangular frame, and a guide plate 23 covering the rectangular frame. The guide plate 23 encloses a second receiving cavity N. The first receiving cavity M and the second receiving cavity N are interconnected to form a receiving space for accommodating cleaning components.

[0054] When the internal components of the floor scrubber's cleaning head housing 1 are damaged, the cover assembly 2 is removed from the cleaning head housing 1, opening the openings at the front of the cleaning roller and the top of the dustbin. Conversely, when assembling the cover assembly 1, the base 22 is secured to the openings at the front of the cleaning roller and the top of the dustbin, covering the openings of the floor scrubber's cleaning head housing. This cover assembly 1, which is easy to separate directly from the cleaning head housing, improves the efficiency of disassembling and assembling the internal components of the cleaning head housing 1.

[0055] In this invention, such as Figures 1 to 4As shown, the cover assembly 2 covers the top of the cleaning head housing 1 of the floor scrubber, protecting the internal structure of the cleaning head housing 1 and preventing damage to its internal structure when it collides with other objects. The cover assembly 2 includes a cover plate 21 and a base 22. The cover plate 21 encloses a first receiving cavity M that protects the cleaning roller installed inside the cleaning head housing 1. The internal structure of the cleaning head housing 1, such as the cleaning roller, transmission device, and drive device, is assembled in the first receiving cavity M. By covering the top of the cleaning head housing 1 with the cover assembly 2, the internal structure of the cleaning head housing 1 is prevented from being exposed and damaged in the event of a collision with other objects. The base 22 includes a left side plate 221, a right side plate 222, a front side plate 223, a rear side plate 224 extending downwards from the cover plate 21 and forming a rectangular frame, and a guide plate 23 covering the rectangular frame. The guide plate 23 encloses a second receiving cavity N. When the cover plate assembly 2 is placed on the top of the cleaning head housing 1, the base 22 engages with the inner walls of the first clamping plate 11 and the second clamping plate 12 of the cleaning head housing 1, which are used to hold the cleaning roller, to support the top cover plate 21. The base 22 is provided with a second receiving cavity N, which is also used to accommodate the internal structure of the cleaning head housing 1. Since the internal structure of the cleaning head housing 1 is numerous and occupies a large space, the first receiving cavity M and the second receiving cavity N are interconnected to form a receiving space, thereby improving the utilization rate of the internal space of the cleaning head housing 1. The four sides of the base 22 of the cover assembly 2 are detachably connected to the four side walls of the top opening of the trash box of the cleaning head housing 1. When disassembling the entire cover assembly 2, remove the opposite sides of the base 22 from the top opening of the trash box of the cleaning head housing 1 until the base 22 is detached from the body, and then the entire cover assembly 2 can be separated from the cleaning head housing 1. Conversely, when installing the cover assembly 2, align the opposite sides of the base 22 with the assembly positions of the top opening of the trash box of the cleaning head housing 1, and then install the cover assembly 2 onto the cleaning head housing 1.

[0056] In one or more alternative embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, both sets of opposite side plates of the base 22 are provided with snap-fit ​​devices for engaging the guide plate 23. Specifically, as... Figure 4 , Figure 7 , Figure 8As shown, the left side plate 221 and right side plate 222 of the base 22 are a set of opposing side plates, and the front side plate 223 and rear side plate 224 of the base 22 are another set of opposing side plates. Both the left side plate 221 and right side plate 222 are provided with reinforcing rib hooks 2222 for engaging the guide plate 23. The front side plate 223 has intermittently spaced snap-fit ​​grooves 2231 and reinforcing rib hooks 2232, and the rear side plate 224 has intermittently spaced snap-fit ​​grooves 2241 and reinforcing rib hooks 2242. All the reinforcing rib hooks and snap-fit ​​hooks on the base 22 are used for engaging with the guide plate 23. This facilitates the easy removal of the guide plate 23 from the base 22 when it needs to be disassembled.

[0057] In one or more alternative embodiments, such as Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 As shown, the cover plate 21 includes a smoothly connected arcuate portion 211 and a straight portion 212, and the base 22 extends downward from the straight portion 212. Specifically, as... Figure 2 , Figure 3 As shown, the cover 21 is a single, continuous piece, divided into an arc-shaped section 211 and a straight section 212 at the head end by an obtuse-angle bend. The arc shape of the arc-shaped section 211 matches the arc shape of the cleaning roller surface protected by the cleaning head housing 1, thus providing effective protection for the cleaning roller with minimal volume and space occupation. The straight section 212 covers the upper opening of the waste bin in the cleaning head housing 1. Its straight shape allows for a tighter fit between the straight section 212 and the upper opening of the waste bin in the cleaning head housing 1, preventing the brush assembly (not shown in the figure) inside the cleaning head housing 1 from throwing waste into the gap between the two covers and falling to the ground when sweeping sticky solid waste in the waste bin.

[0058] In one or more alternative embodiments, such as Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 As shown, the cover plate assembly 2 further includes at least two snap-fit ​​pieces 2112 disposed at both ends of the arc-shaped portion 211. These two snap-fit ​​pieces 2112 elastically abut against the two clamping plates 11 and 12 of the cleaning head housing 1 used to clamp the cleaning roller, respectively. Specifically, as shown... Figure 1 , Figure 3As shown, two snap-fit ​​pieces 2112 extending toward the first accommodating cavity M are provided at both ends of the arc-shaped portion 211. Each snap-fit ​​piece 2112 has elastic protrusions extending toward the outer ends (not shown in the figure). When the user installs the cover plate assembly 2 onto the cleaning head housing 1, the two elastic protrusions will match the recesses on the two clamping plates 11 and 12 of the cleaning head housing 1 used to hold the cleaning roller, preventing the cover plate assembly 2 from jumping up, down, left, right, back and forth when the cleaning head is impacted during the high-speed dragging of the cleaning head, thus reducing the noise when the cleaning head is working.

[0059] In one or more alternative embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the straight portion 212 forms stepped ends on both sides where it connects to the base. The width of the base 22 exactly matches the width of the trash can opening of the cleaning head housing. The stepped ends abut against the inner sidewalls and top walls of the clamps 11 and 12. Specifically, as shown... Figure 3 , Figure 4 As shown, the stepped end design makes it easier for the base 22 of the cover assembly 2 to be firmly inserted into the upper opening of the trash box of the cleaning head housing 1. Even if the user drags the cleaning head at a very fast speed, the cover assembly 2 will not bounce up, down, left, right, back and forth when the cleaning head housing 1 is impacted, thus reducing the noise when the cleaning head is working.

[0060] In one or more alternative embodiments, such as Figure 1 , Figure 3 , Figure 4 As shown, the cover plate 21 also includes a plurality of reinforcing ribs 2111, which are spaced apart on the inner sidewall of the arc-shaped portion 211. The reinforcing ribs 2111 spaced apart on the inner sidewall of the arc-shaped portion 211 help improve the cover plate 21's ability to withstand impacts from various directions on the area of ​​the cleaning head housing 1 near the cleaning roller, thereby improving the impact resistance of the entire cover plate assembly 2 and providing better protection for the cleaning roller.

[0061] In one or more optional embodiments, each of the reinforcing ribs 2111 is curved and elastically abuts against the surface of the cleaning roller. The reinforcing ribs 2111, spaced apart on the inner wall of the arc-shaped portion 211 and elastically abutting against the surface of the cleaning roller, divide the surface of the cleaning roller into various non-interfering guide zones. During high-speed rotation, the cleaning roller rolls up the waste into the guide channel, where it is swept into the waste box by the brush assembly. When some sticky waste successively overcomes the obstructions of the brush, water guide strip, and squeezing strip, it is carried out of the cleaning tank by the cleaning roller and rolled back to the bottom. At this point, thanks to the separating function of the reinforcing ribs 2111, the sticky waste rolled back from the ground into the guide channel does not move axially in the cleaning roller direction, thus improving the cleaning efficiency of the cleaning roller. The multiple reinforcing ribs 2111 simultaneously support the arc-shaped portion 211 inside the cover assembly 2, allowing the arc-shaped portion 211 to be stably assembled at the top of the opening at the upper end of the waste box of the cleaning head housing 1, further improving the stability of the arc-shaped portion 211. Each reinforcing rib 2111 is spaced apart from its adjacent counterparts, for example, by a distance between each reinforcing rib 2111 and its adjacent counterparts. This not only reduces the space occupied in the first accommodating cavity M but also does not reduce the stability of the arc-shaped portion 211. At least two reinforcing ribs 2111 are provided; in this embodiment, four reinforcing ribs 2111 are used. These four reinforcing ribs 2111 are simultaneously supported on the internal support structure of the floor scrubber 2, further improving the stability of the arc-shaped portion 211.

[0062] In one or more optional embodiments, the guide plate 23 includes a guide tip 231, a guide arc portion 233, and a straight extension portion 232 connected in sequence. The guide tip 231 engages with the front side plate 223, the straight extension portion 232 engages with the rear side plate 224, and the guide arc portion 233 engages with the left side plate 221 and the right side plate 222. The detachable guide plate 23, on the one hand, restricts the solid and sticky waste carried out by the brush assembly's sweeping rotation from being directionally thrown into the waste box along the arc surface of the guide plate 23 by the enclosed second accommodating cavity N. On the other hand, the guide tip 231 of the guide plate 23 can pre-separate the solid and sticky waste swept up by the cleaning roller into two streams. One stream continues to rotate upward with the cleaning roller and is further scraped by the water-collecting strip and the water-squeezing strip, while the other stream is directly brushed away by the brush along the arc surface of the guide plate 23. The replaceable guide plate 23 can be adapted to different brush assemblies and cleaning rollers, allowing users to replace different parts for different application scenarios, enabling the floor scrubber to perform deep surface cleaning in more scenarios.

[0063] In one or more alternative embodiments, such as Figure 6 , Figure 8As shown, a third accommodating cavity P is formed between the cover plate 21 and the base 22, defining the elastic extension and retraction direction of the locking device 24. The base 22 is intended to extend towards the upper opening of the trash can of the cleaning head housing 1, and the extended space is perfectly suited for installing a locking device 24 to further increase the stability of the connection between the base 22 and the two clamping plates 11, 12 of the cleaning head housing 1. Since the locking device 24 frequently requires elastic extension and retraction of its locking tongue, being enclosed within the third accommodating cavity P between the cover plate 21 and the base 22 better protects the locking device 24 from water and dust, increasing its reusable service life. This ensures a smooth user experience every time the user presses the locking device 24, and that the extension and retraction of the locking tongue are also smoother.

[0064] In one or more alternative embodiments, such as Figure 6 As shown, the locking device 24 includes a pair of elastic elements 242 with one end abutting against the third accommodating cavity P, a pair of locking sliders 241 with one end abutting against the elastic element 242 and the other end extending out of the base side plate, and a pair of elastic latches 243 engaged on the locking sliders. The locking sliders 241 can slide along the axial direction of the elastic element 242. The locking sliders 241, which can slide along the axial direction of the elastic element 242, facilitate further extension of the width required by the base 22, so that the locking tongue 241a of the locking sliders 241 can reach a certain length and pass through the two side plates 221, 222 of the base 22. It also facilitates the further engagement of the elastic latches 243 on the locking sliders 241, so that the elastic latches 243 can pass through the upper surface of the cover plate assembly 2, and the user can directly press the elastic latches 243 used by the locking device 24.

[0065] In one or more alternative embodiments, such as Figure 5 , Figure 6 As shown, the straight portion 212 extends towards the third accommodating cavity P with an abutment plate (not shown in the figure), and one end of the elastic member 242 abuts against the abutment plate. The straight portion 212 has recessed sliding grooves 2121 on both sides of the abutment plate towards the third accommodating cavity P, allowing the elastic latch 243 to slide along the axis of the elastic member. The required stroke of the sliding groove 2121 is exactly the stroke of the elastic member 242 that can elastically deform. The sliding groove 2121, designed according to the required extension and retraction stroke of the latch 241a, allows the elastic latch 243 to slide along the axis of the elastic member. The sliding groove 2121 allows the user to more easily press the elastic latch 243 of the locking device 24, while also allowing the right side of the entire locking device 24 to extend beyond the large surface of the straight portion 212 of the entire pressure cover assembly 2, thus making more effective use of the space of the entire base 22 and further improving the space utilization rate of the third accommodating cavity P.

[0066] In one or more alternative embodiments, such as Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 As shown, the locking slider 241 has a locking tongue 241a extending from the side plate of the base at one end opposite to the elastic member 242. In the locked state, the locking tongue 241a elastically abuts against the inner side walls of the two clamping plates 11 and 12 of the cleaning head housing 1. The locking tongue 241a can further improve the locking stability of the entire base 22 when it is elastically engaged with the upper opening of the trash can of the cleaning head housing 1. Even if the user drags the cleaning head at a high speed, the cover assembly 2 will not bounce up, down, left, right, back and forth when the cleaning head housing 1 is impacted, thus reducing the noise when the cleaning head is working.

[0067] In one or more alternative embodiments, the opposite sides of the base 22 can also be detachably connected to the upper opening of the trash box of the cleaning head housing 1 by means of snaps or screws, so as to facilitate the removal of the entire cover structure 1 without having to remove the entire mounting shell before the damaged cleaning component can be taken out.

[0068] In addition, the upper opening of the trash box of the cleaning head housing 1 in this embodiment of the invention can be a support body (not shown in the figure) for supporting the entire cover structure 1 on the top of the floor scrubber 2. The specific structural form of the support body can be flexibly set according to actual needs.

[0069] In one or more optional embodiments, the base 22 may also be provided with fasteners (not shown in the figure) on both sides for engaging with the upper opening of the waste box of the cleaning head housing 1. When installing the cover structure 2, the fasteners on both sides of the base 22 are engaged with the corresponding positions on the upper opening of the waste box of the cleaning head housing 1 to stably assemble the entire structure onto the upper opening of the waste box of the cleaning head housing 1. Conversely, when disassembling the entire cover structure 1, the entire cover structure 2 can be removed after the fasteners on both sides of the base 22 are disengaged from the corresponding positions on the upper opening of the waste box of the cleaning head housing 1.

[0070] In one or more optional embodiments, a guide plate 23 is provided on the side of the base 22 near the first accommodating cavity M. A through hole (not shown in the figure) is provided on the guide plate 23. The through hole extends through the thickness of the guide plate 23 to connect the first accommodating cavity M with the interior of the base 22. Thus, the structure located in the base 22 passes through the through hole and is connected to the structure located in the first accommodating cavity M.

[0071] With the cover plate assembly 2 of this embodiment, when the internal components of the floor scrubber cleaning head housing 1 are damaged, the cover plate assembly 2 can be removed from the cleaning head housing 1, opening the openings at the front of the cleaning roller and the top of the dustbin of the floor scrubber; conversely, when assembling the cover plate assembly 1, the base 22 is engaged with the openings at the front of the cleaning roller and the top of the dustbin, covering the openings of the cleaning head housing of the floor scrubber. This cover plate assembly 1, which is easy to separate directly from the cleaning head housing, improves the efficiency of disassembling and assembling the internal components of the cleaning head housing 1.

[0072] Secondly, embodiments of the present invention also provide a floor scrubbing machine, which is provided with the cover plate assembly 2 described in the first aspect.

[0073] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cover plate assembly, disposed on the cleaning head housing of a floor scrubber, characterized in that, The cover plate structure includes: A cover plate overlaps directly above the trash box opening of the cleaning head housing, enclosing a first receiving cavity that protects the cleaning roller installed inside the cleaning head housing; The base includes a left side plate, a right side plate, a front side plate, a rear side plate, and a guide plate covering the rectangular frame, which extend downward from the cover plate and form a rectangular frame. The guide plate encloses a second receiving cavity. The first accommodating cavity and the second accommodating cavity are interconnected to form an accommodating space for accommodating cleaning components.

2. The cover plate assembly according to claim 1, characterized in that, Both sets of opposite side plates of the base are provided with snap fasteners for engaging the guide plate.

3. The cover plate assembly according to any one of claims 1-2, characterized in that, The cover plate includes a smoothly connected arcuate portion and a straight portion, and the base extends downward from the straight portion.

4. The cover plate assembly according to claim 3, characterized in that, It also includes at least two snap-fit ​​pieces disposed at both ends of the arc-shaped portion, which elastically abut against two clamping plates of the cleaning head housing for holding the cleaning roller.

5. A cover plate assembly according to claim 3, characterized in that, The straight section connects to the base on both sides to form stepped ends. The width of the base matches the width of the trash box opening of the cleaning head housing. The stepped ends abut against the inner sidewall and top wall of the clamping plate.

6. The cover plate assembly according to claim 3, characterized in that, The cover plate also includes a plurality of reinforcing ribs, which are spaced apart on the inner sidewall of the arcuate portion.

7. The cover plate assembly according to claim 6, characterized in that, Each of the reinforcing ribs is curved and elastically abuts against the surface of the cleaning roller.

8. The cover plate assembly according to claim 1, characterized in that, The guide plate includes a guide tip, a guide arc, and a straight extension that are smoothly connected in sequence. The guide tip engages with the front side plate, the straight extension engages with the front side plate, and the guide arc engages with the left side plate and the right side plate.

9. The cover plate assembly according to claim 1, characterized in that, A third accommodating cavity is formed between the cover plate and the base, defining the elastic extension and retraction direction of the locking device.

10. The cover plate assembly according to claim 9, characterized in that, The locking device includes a pair of elastic elements with one end abutting the third accommodating cavity, a pair of locking sliders with one end abutting the elastic element and the other end extending out of the base side plate, and a pair of elastic latches locked on the locking sliders. The locking sliders can slide along the axial direction of the elastic elements.

11. The cover plate assembly according to claim 10, characterized in that, A stop plate extends from the middle of the straight portion toward the third accommodating cavity, and one end of the elastic member abuts against the stop plate; the middle of the straight portion has sliding grooves recessed on both sides of the stop plate toward the third accommodating cavity, allowing the elastic button to slide along the axial direction of the elastic member.

12. The cover plate assembly according to claim 10, characterized in that, The locking slider has a locking tongue that can extend out of the base side plate at one end away from the elastic element. In the locked state, the locking tongue elastically abuts against the inner side wall of the clamping plate.

13. A floor scrubbing machine, characterized in that, The floor scrubber is provided with a cover plate assembly as described in any one of claims 1-12.

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