Scraping strip assembly and scrubber

Abstract

The invention relates to a scraping strip assembly and a scrubber, the scraping strip assembly comprises a scraping strip body and a driving mechanism, and the scraping strip body comprises a hard part and a scraping strip part. The scraping strip body comprises a hard part and a scraping strip part, the hard part is configured to rotate around a first direction, in the rotating process of the hard part, the first end of the hard part ascends and descends in the height direction of the scrubber, and the scraping strip part is connected with the first end. And the driving mechanism is in transmission fit with the hard part and is configured to drive the hard part to rotate. According to the scraping strip assembly, the hard part is driven to rotate through the driving mechanism, then the scraping strip part is driven to ascend and descend, and switching between ground clearance and ground attachment is achieved. In other words, the lifting action of the scraping strip part can be converted into the rotating action, and part of the lifting distance of the scraping strip part is decomposed into displacement in the horizontal direction by the rotating action. Therefore, within the limited height size range of the scrubber, the lifting height which the scraping strip assembly can reach is higher, and the probability that particles are pushed away and cannot be twisted in and sucked away by the rolling brush is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a scraper bar assembly and a floor scrubber. Background Art

[0002] Floor scrubbers generally have a scraper bar at the rear end of the roller brush. When pushed forward, it can scrape off the dirt remaining on the ground. However, in actual use, users will repeatedly push and pull the machine back and forth, resulting in the inability to effectively scrape off the dirt remaining on the ground when pulled back.

[0003] In the related art, although some floor scrubbers are provided with a scraper bar at the front end, which moves up and down, the scraper bar has a limited up and down movement range due to the curved appearance of the front end of the top cover. When there are slightly larger particles to be cleaned at the front end, the scraper bar at the front end rises and the height from the ground is very small, which will push away the particles, ultimately resulting in the particles being unable to be entangled and sucked away by the roller brush. Summary of the invention

[0004] Based on this, it is necessary to provide a scraper bar assembly and a floor scrubber that can increase the lifting height of the scraper bar in order to address the above-mentioned problems.

[0005] A scraper bar assembly for a floor scrubber, the scraper bar assembly comprising:

[0006] A scraper strip body, comprising a hard portion and a scraper strip portion, wherein the hard portion is configured to be rotatable about a first direction, and during the rotation of the hard portion, a first end thereof is lifted and lowered in a height direction of the floor scrubber, and the scraper strip portion is connected to the first end; and

[0007] The driving mechanism is in transmission cooperation with the hard part and is configured to be able to drive the hard part to rotate.

[0008] In one embodiment, the driving mechanism includes a driver and a slider, and the slider cooperates with the hard part; the driver is transmission-connected to the slider and is configured to be able to drive the slider to drive the hard part to rotate.

[0009] In one embodiment, the slider is configured to be able to move along the second direction under the drive of the driver; the slider has a mating groove, the hard part has a mating axis, the mating axis is arranged in the mating groove, and is configured to be able to rotate around the first direction and move along the third direction in the mating groove; wherein the first direction, the second direction and the third direction intersect each other.

[0010] In one embodiment, the slider has a rack portion, and the longitudinal direction of the rack portion is arranged along the second direction; the driving mechanism also includes a driving gear, which is meshed with the rack portion and is transmission-connected to the driver.

[0011] In one embodiment, in the axial direction of the driving gear, an edge of at least one of the rack portion and the driving gear has a guide surface.

[0012] In one embodiment, the hard portion is configured such that when the hard portion rotates along a first direction, the first end rises, and when the hard portion rotates along a second direction, the first end falls;

[0013] The driving mechanism also includes an elastic member, which abuts against the slider and is configured to provide a driving force that drives the slider to drive the hard part to rotate along the first direction. The driver is configured to at least provide a driving force that drives the slider to drive the hard part to rotate along the second direction.

[0014] In one embodiment, the hard portion is in an arc shape around a first axis, and the first axis is parallel to the first direction. The hard portion is configured to be rotatable around the first axis, and the first end is one end of the hard portion in the circumferential direction around the first axis.

[0015] In one embodiment, the scraper assembly also includes an upper cover structure, the upper cover structure has an interlayer and an extension port, the interlayer has an arc-shaped portion, and the arc-shaped portion is arranged around the first direction; the hard portion is configured to be at least partially located in the interlayer and can slide along the arc-shaped portion; the extension port is located at one end of the arc-shaped portion in the circumferential direction around the first direction, and connects the inside and outside of the interlayer, and the scraper body can extend and retract outward from the extension port.

[0016] In one embodiment, the upper cover structure has a stopper, the slider has an assembly groove and a positioning column, the assembly groove extends along the sliding direction of the slider, the stopper is located in the assembly groove, the elastic member is a spring and is arranged in the assembly groove, one end of the elastic member abuts against the stopper, and the other end is sleeved on the positioning column.

[0017] In one embodiment, the first end has a first position and a second position in the height direction;

[0018] The hard part has a first limiting structure, and the upper cover structure has a limiting boss, and the first limiting structure is configured to abut against the limiting boss and produce a limit to block the first end from descending in the height direction when the first end is in the first position; and / or, the upper cover structure has a second limiting structure, the hard part has an elastic protrusion, and the second limiting structure is configured to abut against the elastic protrusion and produce a limit to block the first end from rising in the height direction when the first end is in the second position.

[0019] In one of the embodiments, the arc-shaped portion is disposed around the circumference of the roller brush of the floor scrubber, and the extension port is located at the front side of the roller brush and is disposed downward.

[0020] In one embodiment, the upper cover structure includes a top cover and an inner cover, the top cover is connected to the inner cover and spaced to form the interlayer, and the inner cover has a water storage cavity and a water filling level.

[0021] In one of the embodiments, the upper cover structure has a positioning and matching structure, and is detachably connected to the lower cover structure of the floor scrubber via the positioning and matching structure.

[0022] In one of the embodiments, the hard portion and the scraper portion are integrally formed; and / or the hard portion is made of hard rubber material, and the scraper portion is made of soft rubber material.

[0023] A floor scrubber comprises the scraper bar assembly mentioned above.

[0024] The scraper bar assembly and the floor scrubber drive the hard part to rotate through the driving mechanism, thereby driving the scraper bar to rise and fall, and realize the switching between the scraper bar being off the ground and being close to the ground. In other words, the lifting action of the scraper bar can be converted into a rotation action, and part of the lifting distance is decomposed into horizontal displacement by the rotation action. Therefore, within the limited height size range of the floor scrubber, the scraper bar assembly can increase the lifting height of the scraper bar, so that the scraper bar is higher off the ground after rising, which helps to reduce the probability that particles are pushed away and cannot be sucked in by the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] FIG1 is a schematic structural diagram of a floor scrubber having a scraper bar assembly in one embodiment of the present application when the scraper bar body is in a working state.

[0027] FIG. 2 is an enlarged structural schematic diagram of the floor scrubber shown in FIG. 1 at point A. FIG.

[0028] FIG3 is a schematic structural diagram of the floor scrubber shown in FIG1 when the scraper bar body is off the ground.

[0029] FIG. 4 is an enlarged structural schematic diagram of the floor scrubber shown in FIG. 3 at point B. FIG.

[0030] FIG. 5 is a schematic structural diagram of a scraper bar body in the floor scrubber shown in FIG. 1 .

[0031] FIG. 6 is a schematic structural diagram of a slider and a driving gear in the floor scrubber shown in FIG. 1 .

[0032] FIG. 7 is a partial structural schematic diagram of the floor scrubber shown in FIG. 1 when the first end of the hard portion is in the first position.

[0033] FIG8 is a partial structural schematic diagram of the floor scrubber shown in FIG1 when the first end of the hard portion is in the second position.

[0034] FIG. 9 is a schematic diagram of the exploded structure of the floor scrubber shown in FIG. 1 .

[0035] FIG. 10 is another exploded structural schematic diagram of the floor scrubber shown in FIG. 1 .

[0036] FIG. 11 is a schematic structural diagram of the assembly of the upper cover structure and the scraper body of the floor scrubber shown in FIG. 1 .

[0037] Description of the accompanying drawings: 10, scraper body; 11, hard part; 111, first end; 113, matching shaft; 115, second end; 117, first limiting structure; 119, elastic convex point; 13, scraper part; 30, driving mechanism; 31, driver; 32, slider; 321, matching groove; 323, rack part; 325, assembly groove; 327, positioning column; 329, rack groove; 33, elastic member; 34, driving gear; 35, Guide surface; 50, upper cover structure; 51, interlayer; 511, arc-shaped portion; 52, extension port; 53, top cover; 531, limiting boss; 54, inner cover; 541, stopper; 542, second limiting structure; 543, water storage chamber; 544, water filling position; 545, assembly position; 551, first buckle position; 552, joint; 200, floor scrubber; 210, roller brush; 220, lower cover structure; 221, second buckle position; 222, docking hole. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore it should not be understood as a limitation on the present application.

[0040] In addition, if the term "and / or" appears, "and / or" is merely a way to describe the association relationship between associated objects, and indicates that three relationships may exist, for example, A and / or B can represent the association relationship between A and B: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that there is an "or" relationship between the associated objects before and after it. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0044] As described in the background technology, in the related art, the up and down lifting direction of the front scraper bar is equivalent to the height direction of the floor scrubber 200. Therefore, due to the height of the front end of the floor scrubber 200, the lifting stroke of the front scraper bar is also very limited, which leads to the problem that the scraper bar is not high enough from the ground after it is raised. In addition, the structure used to realize the lifting of the front scraper bar in the related art is relatively complicated and inconvenient to disassemble and clean.

[0045] Referring to FIGS. 1 to 5 , a scraper bar assembly provided in an embodiment of the present application includes a scraper bar body 10 and a driving mechanism 30. The scraper bar body 10 includes a hard portion 11 and a scraper bar portion 13. The scraper bar body 10 includes a hard portion 11 and a scraper bar portion 13. The hard portion 11 is configured to be able to rotate around a first direction, and during the rotation of the hard portion 11, its first end 111 is lifted and lowered in the height direction of the floor scrubber 200, and the scraper bar portion 13 is connected to the first end 111. The driving mechanism 30 is in transmission cooperation with the hard portion 11, and is configured to be able to drive the hard portion 11 to rotate.

[0046] In one embodiment, the scraper bar assembly is used in a floor scrubber 200, and specifically, can be used as a front scraper bar of the floor scrubber 200. In some other embodiments, the scraper bar assembly can also be used in a sweeper, a washer-dryer, etc., which is not specifically limited here.

[0047] Among them, the hard part 11 is made of a material with high compressive resistance and strength, is not easy to deform or break, has good driving ability, and can respond and act accordingly under the drive of the driving mechanism 30. The hard part 11 can be, but is not limited to, a hard plastic material, such as high styrene rubber or polystyrene, ABS plastic, polyvinyl chloride and other hard plastics, which are not specifically limited here. The scraper part 13 is used to directly contact and clean the ground, and it is made of a soft material so that it can fit the ground for cleaning. The scraper part 13 can be, but is not limited to, a soft plastic material, such as natural rubber, synthetic rubber, polypropylene, polyethylene, silicone and other materials, which are not specifically limited here.

[0048] It can be understood that the first direction (such as the direction perpendicular to the paper surface in FIG. 1 and the X direction as shown in FIG. 9 ) intersects with the height direction of the floor scrubber 200, wherein the height direction of the floor scrubber 200 is perpendicular to the horizontal plane. For ease of understanding, the following embodiments are described by taking the first direction parallel to the horizontal plane as an example.

[0049] The hard part 11 can rotate around the first direction under the drive of the driving mechanism 30, and the first end 111 thereof can be raised and lowered. Accordingly, the scraper part 13 connected to the first end 111 of the hard part 11 also rises and falls accordingly, and the scraper body 10 has a ground-lifting state in which the scraper part 13 is off the ground and a ground-attached working state in which the scraper part 13 is on the ground.

[0050] The scraper bar assembly drives the hard part 11 to rotate through the driving mechanism 30, thereby driving the scraper bar part 13 to rise and fall, and realizes the switching between the scraper bar part 13 being off the ground and close to the ground. In other words, the lifting action of the scraper bar part 13 can be converted into a rotation action, and part of the lifting distance is decomposed into horizontal displacement by the rotation action. Therefore, within the limited height size range of the floor scrubber 200, the scraper bar assembly can increase the lifting height of the scraper bar part 13, so that the scraper bar part 13 is higher after rising, which helps to reduce the probability that particles are pushed away and cannot be sucked in by the roller brush 210.

[0051] In some embodiments, the hard portion 11 and the scraper portion 13 are integrally formed. It is understandable that the hard portion 11 and the scraper portion 13 can be integrally formed by injection molding during the molding stage, or by secondary injection molding, etc., as long as the two are integrally formed.

[0052] Thus, the hard part 11 is tightly connected to the scraper part 13. In addition, there is no connection gap between the hard part 11 and the scraper part 13 to prevent dust and particles from being included therein.

[0053] In some embodiments, the hard portion 11 is arc-shaped around a first axis parallel to the first direction, the hard portion 11 is configured to be rotatable around the first axis, and the first end 111 is one end of the hard portion 11 in the circumferential direction around the first axis.

[0054] It can be understood that the hard portion 11 can be generally regarded as a part of a cylindrical structure, and the first axis is the axis of the cylindrical structure.

[0055] In this way, the rotation of the hard part 11 is more stable and the required rotation space is smaller. In addition, the rotation of the hard part 11 can be more effectively converted into the displacement of the scraper part 13 connected to the first end 111 thereof.

[0056] Please refer to Figures 6 to 8 together. In some embodiments, the driving mechanism 30 further includes a driver 31 and a slider 32, and the slider 32 cooperates with the hard part 11. The driver 31 is connected to the slider 32 in a transmission manner and is configured to drive the slider 32 to drive the hard part 11 to rotate. It can be understood that the driver 31 can be, but is not limited to, a motor.

[0057] In this way, the up and down stroke of the scraper portion 13 is mainly affected by the position of the slider 32. When designing, it is only necessary to confirm the up and down, left and right positions of the slider 32 to achieve the maximum stroke output.

[0058] Further, the hard portion 11 is configured such that when the first end 111 rotates around the first direction along a first turn, the first end 111 rises, and when the hard portion 11 rotates around the first direction along a second turn, the first end 111 descends.

[0059] The driving mechanism 30 further includes an elastic member 33, the elastic member 33 abuts against the slider 32, and the elastic member 33 is configured to provide a driving force for driving the slider 32 to drive the hard part 11 to rotate along the first direction, and the driver 31 is configured to at least provide a driving force for driving the slider 32 to drive the hard part 11 to rotate along the second direction. It can be understood that the elastic member 33 can be, but is not limited to, a spring.

[0060] In this way, the hard part 11 can rotate until the scraping strip part 13 is off the ground under the action of the elastic member 33 or under the joint action of the elastic member 33 and the driver 31, so that the scraping strip body 10 is off the ground. At this time, a sufficient gap is formed between the scraping strip body 10 and the ground so that particles can pass through and be entangled by the roller brush 210. The hard part 11 can also overcome the elastic force under the action of the driver 31 and rotate until the scraping strip part 13 is close to the ground, so that the scraping strip body 10 is in a working state, that is, the working state of the scraping strip body 10 is its initial state. At this time, the scraping strip body 10 can clean the ground through the scraping strip part 13.

[0061] In some embodiments, the slider 32 is configured to be able to move along the second direction (the Y direction as shown in FIG. 1 ) under the drive of the driver 31. The slider 32 has a matching groove 321, and the hard part 11 has a matching shaft 113, which is disposed in the matching groove 321 and is configured to be able to rotate around the first direction and move along the third direction (the Z direction as shown in FIG. 1 ) in the matching groove 321. The first direction, the second direction, and the third direction intersect each other.

[0062] The first direction, the second direction and the third direction may be perpendicular to each other, and the third direction is a vertical direction, wherein the second direction corresponds to the front-rear direction of the floor scrubber 200, and the third direction corresponds to the height direction of the floor scrubber 200. The matching groove 321 of the slider 32 may be a U-shaped groove, and the groove depth direction is the third direction.

[0063] The mating shaft 113 may be located at a second end 115 of the hard portion 11 , where the second end 115 is the other end opposite to the first end 111 in a circumferential direction around the first direction.

[0064] In this way, the rotation of the hard part 11 around the first direction can be decomposed into its movement along the second direction and the third direction at the matching axis 113, and then the driver 31 drives the slider 32 to translate along the second direction to realize the driving of the rotation of the hard part 11.

[0065] Furthermore, the slider 32 has a rack portion 323 , and the longitudinal direction of the rack portion 323 is arranged along the second direction. The driving mechanism 30 also includes a driving gear 34 , which is meshed with the rack portion 323 and is transmission-connected to the driver 31 .

[0066] It can be understood that the axial direction of the driving gear 34 is perpendicular to the second direction. The rack portion 323 has a plurality of meshing teeth arranged in sequence along the second direction. Specifically, the tooth width direction of the meshing teeth is the third direction. The output shaft of the driver 31 is arranged along the third direction. The driving gear 34 is sleeved on the output shaft of the driver 31.

[0067] In this way, the driver 31 can drive the slider 32 to slide along the second direction through the driving gear 34 and the rack portion 323 meshing with the driving gear 34. The driving gear 34 and the rack portion 323 cooperate to drive, and the transmission is relatively stable, the noise is low, and the motor torque requirement is relatively low.

[0068] Specifically, in the axial direction of the driving gear 34, at least one edge of the rack portion 323 and the driving gear 34 has a guide surface 35. In other words, at least one edge of the meshing teeth of the rack portion 323 and the driving gear 34 in the width direction forms the guide surface 35.

[0069] It can be understood that the guide surface 35 can provide guidance for the meshing of the rack portion 323 and the driving gear 34 . In a specific embodiment, the edges of the meshing teeth of the rack portion 323 and the driving gear 34 in the width direction both form the guide surface 35 .

[0070] Thus, during the assembly process, the rack portion 323 and the driving gear 34 can be assembled with each other along the axial direction of the driving gear 34 , that is, the third direction, to achieve meshing, and the guide surface 35 can reduce the difficulty of assembly and meshing between the two.

[0071] Please refer to Figures 9 to 11 together. In some embodiments, the scraper assembly further includes an upper cover structure 50, the upper cover structure 50 has an interlayer 51 and an extension port 52, the interlayer 51 has an arc portion 511, and the arc portion 511 is arranged around the first direction. The hard portion 11 is configured to be at least partially located in the interlayer 51 and can slide along the arc portion 511. The extension port 52 is located at one end of the arc portion 511 in the circumferential direction around the first direction, and connects the inside and outside of the interlayer 51, and the scraper body 10 can be extended and retracted outward from the extension port 52.

[0072] In other words, the hard part 11 is at least partially located in the interlayer 51 and can rotate about the first direction by sliding along the arc portion 511 of the interlayer 51. The scraper portion 13 can at least partially extend from the extension opening 52 and can be extended and retracted as the hard part 11 rotates.

[0073] In this way, the hard part 11 can stably rotate around the first direction, and the structure to achieve the rotation is simple, requiring fewer parts. At the same time, the rubber strip part can be normally extended and retracted through the extension opening 52 of the upper cover structure 50 to meet the requirements of the rubber strip body state switching.

[0074] Furthermore, the arc portion 511 is disposed around the circumference of the roller brush 210 of the floor scrubber 200 , and the extension opening 52 is located at the front side of the roller brush 210 and is disposed downward.

[0075] It can be understood that the first direction is parallel to the axis of the roller brush 210, the hard portion 11, the arc portion 511 and the roller brush 210 can be coaxially arranged, and the first axis is the rotation axis of the roller brush 210. The front side of the roller brush 210 is the front side of the scrubber 200 in the front-to-back direction when in use.

[0076] In this way, the scraper bar body 10 serves as a front scraper bar of the floor scrubber 200. When the hard portion 11 rotates, the rubber strip portion can rise and fall from the extension opening 52 to achieve separation from the ground and contact with the ground.

[0077] Furthermore, the scraper strip body 10 further includes a rolling element, which is disposed on the hard portion 11 , and the hard portion 11 slides along the arc portion 511 through the rolling element.

[0078] It can be understood that the rolling element can be a ball, a roller, etc., and the hard part 11 can contact the inner wall of the interlayer 51 through the rolling element.

[0079] In this way, the rolling element can lower the surface of the hard portion 11 and the inner wall of the interlayer 51 , thereby making it slide more smoothly along the arc portion 511 .

[0080] In some embodiments, the upper cover structure 50 has a slide groove, and the slider 32 is configured to slide along the slide groove. The driver 31 is connected to the slider 32 and is configured to drive the hard part 11 to slide along the arc part 511 by driving the slider 32 .

[0081] It can be understood that the slide groove extends along the second direction. The scraper strip body 10, the elastic member 33 and the slider 32 are installed in the interlayer 51 of the upper cover structure 50, and the top cover 53 forms a slide groove for guiding the slider 32 to slide.

[0082] In this way, the driver 31 can drive the hard part 11 to rotate through the slider 32 under the guidance of the slide groove.

[0083] In some embodiments, the upper cover structure 50 has a stopper 541, and the slider 32 has a mounting groove 325 and a positioning column 327. The mounting groove 325 is extended along the sliding direction of the slider 32, that is, the second direction, and the stopper 541 is located in the mounting groove 325. The elastic member 33 is a spring and is disposed in the mounting groove 325. One end of the elastic member 33 abuts against the stopper 541, and the other end is sleeved on the positioning column 327.

[0084] It can be understood that when the slider 32 slides along the second direction, it slides along the slide groove relative to the upper cover structure 50 , and accordingly, the stopper 541 of the upper cover structure 50 moves relative to the slider 32 in the assembly groove 325 .

[0085] In this way, the elastic member 33 can abut between the stopper 541 of the upper cover structure 50 and the slider 32, thereby generating a driving force to push the slider 32 along the second direction. The assembly groove 325 and the positioning column 327 can improve the assembly stability of the elastic member 33.

[0086] In addition, the slider 32 may also have a rack groove 329 , which also extends along the second direction. A groove wall on one side of the rack groove 329 is formed as a rack portion 323 . The driving gear 34 is located in the rack groove 329 and meshes with the rack portion 323 .

[0087] In some embodiments, the first end 111 has a first position and a second position in the height direction. The hard part 11 has a first limiting structure 117, and the upper cover structure 50 has a limiting boss 531. The first limiting structure 117 is configured to abut against the limiting boss 531 and generate a limit to block the first end 111 from descending in the height direction when the first end 111 is in the first position (as shown in FIG. 1); and / or, the upper cover structure 50 has a second limiting structure 542, and the hard part 11 has an elastic convex point 119. The second limiting structure 542 is configured to abut against the elastic convex point 119 and generate a limit to block the first end 111 from rising in the height direction when the first end 111 is in the second position (as shown in FIG. 2).

[0088] It can be understood that when the first end 111 is in the first position, the scraper body 10 is in a working state with the scraper portion 13 touching the ground, and when the first end 111 is in the second position, the scraper body 10 is in a ground-lift state with the scraper portion 13 off the ground, and the position of the scraper portion 13 reaches the highest point.

[0089] Specifically, the first limiting structure 117 can be a limiting rib, and when the first end 111 is in the first position, the first limiting structure 117 abuts against the inner edge of the limiting boss 531 at the extension opening 52. When the first end 111 is in the second position, the second limiting structure 542 abuts against the elastic protrusion 119 of the hard part 11.

[0090] In this way, the lifting and lowering of the first end 111 is limited by the first limiting structure 117 and the second limiting structure 542, so that the lifting and lowering range is determined. In addition, since the slider 32 and the scraper body 10 are movably connected and not fixed, when resetting, due to the influence of processing and assembly errors, there is a clearance fit between the scraper body 10 and each part, resulting in vibration and abnormal noise during operation. The elastic protrusion 119 can effectively support the second limiting structure 542 of the inner cover 54, reducing the noise caused by vibration.

[0091] It is understandable that in other embodiments, the hard portion 11 may not have the first limiting structure 117, the rack portion 323 is set to a suitable length, the driver 31 outputs a fixed thrust, and when the scraper portion 13 abuts against the ground, the driver 31 cannot continue to drive the rack portion 323 and can only keep the scraper portion 13 abutting against the ground. In this way, even if the scraper portion 13 is worn after long-term use, the driver 31 can push the scraper portion 13 down, so that its cleaning effect is more stable.

[0092] In some embodiments, the upper cover structure 50 includes a top cover 53 and an inner cover 54 . The top cover 53 and the inner cover 54 are connected and spaced to form an interlayer 51 . The inner cover 54 has a water storage cavity 543 and a water filling level 544 .

[0093] The top cover 53 can be used as a part of the housing of the floor scrubber 200, and the inner cover 54 is located below the top cover 53 and inside the housing of the floor scrubber 200. The top cover 53 and the inner cover 54 are at least partially separated to form an interlayer 51, that is, the scraper body 10 is sandwiched between the top cover 53 and the inner cover 54, and can slide along at least one surface toward the other.

[0094] The inner cover 54 is concave to form a water storage chamber 543 , which can be used as a clean water tank to store clean water, and the water filling level 544 is used to add clean water into the water storage chamber 543 .

[0095] In this way, the upper cover mechanism for moving the scraper body 10 is integrated with the water storage chamber 543 as a clean water tank, which can simplify the structure of the floor scrubber 200 and help reduce the number of parts.

[0096] Furthermore, the upper cover structure 50 has a positioning and matching structure, and is detachably connected to the lower cover structure 220 of the floor scrubber 200 via the positioning and matching structure.

[0097] Specifically, the positioning and matching structure includes a first buckle position 551 and a joint 552, and the lower cover structure 220 has a second buckle position 221 matched with the first buckle position 551 and a docking hole 222 matched with the joint 552. The lower cover structure 220 is a part of the housing of the floor scrubber 200.

[0098] In this way, the scraper bar body 10 is installed on the upper cover structure 50 and can be disassembled and assembled to the lower cover structure 220 of the floor scrubber 200 together with the upper cover mechanism, so that the scraper bar body 10 and the upper cover structure 50 can be disassembled and cleaned.

[0099] For ease of understanding, the installation process of the scraper assembly is briefly described below:

[0100] The hard part 11 and the scraper part 13 of the scraper body 10 can be an integrally formed part. When installing, the scraper body 10 is first installed on the inner cover 54, and then the slider 32 is installed. The matching groove 321 of the slider 32 is assembled with the matching shaft 113 of the hard part 11. Then, the spring is installed, one end of the spring is sleeved on the positioning column 327 and abuts against the slider 32 in the assembly groove 325, and the other end abuts against the stopper 541 of the inner cover 54. At this time, under the action of the spring, the hard part 11 rotates clockwise, and its elastic protrusion 119 abuts against the second limiting structure 542 of the inner cover 54. Finally, the top cover 53 is installed to realize the final assembly of the upper cover structure 50 with the scraper body 10 and the driving mechanism 30. Among them, the inner cover 54 of the upper cover structure 50 is also provided with a water storage chamber 543, a water filling level 544 and a joint 552 that can cooperate with the lower cover structure 220, so as to form a detachable connection with the lower cover structure 220. The driver 31 and the driving gear 34 are both mounted on the lower cover structure 220. The upper cover structure 50 also has an assembly position 545. When the upper cover structure 50 is assembled to the lower cover structure 220, the driving gear 34 is just inserted into the rack groove 329 of the upper slider 32 of the upper cover structure 50 through the assembly position 545. To facilitate assembly, the driving gear 34 and the rack portion 323 are both provided with a guide surface 35. At the same time, the upper cover structure 50 is provided with a first buckle position 551 and a joint 552, which are respectively fixedly matched with the second buckle position 221 and the docking hole 222 of the corresponding lower cover structure 220, and finally the upper cover structure 50 and the lower cover structure 220 are connected and fixed, and the assembly and disassembly are very convenient.

[0101] The scraper bar assembly, including the scraper bar body 10 as the front scraper bar and the water storage chamber 543 as the clean water tank, are integrated in the detachable upper cover structure 50. When the user uses it, the scraper bar can be cleaned and water can be added at one time without separate processing, which greatly improves the user experience.

[0102] Specifically, the working process of the scraper assembly is as follows: when the roller brush 210 moves forward, the driver 31 returns to the initial state. At this time, the slider 32 is driven by the driving gear 34 and the elastic member 33 to move horizontally backward, thereby pulling the hard part 11 to rotate clockwise and driving the scraper part 13 to rise. When the elastic protrusion 119 on the hard part 11 abuts against the second limiting structure 542 on the inner cover 54, the scraper part 13 is lifted and reset. Since the slider 32 is movably connected to the scraper body 10 and is not fixed, when resetting, due to the influence of processing and assembly errors, there is a clearance fit between the scraper body 10 and each part, resulting in vibration and abnormal noise during operation. The elastic protrusion 119 can effectively support the second limiting structure 542 of the inner cover 54 to reduce the noise caused by vibration. In addition, the up and down stroke of the scraper portion 13 is mainly affected by the position of the slider 32. When designing, it is only necessary to confirm the up and down, left and right positions of the slider 32 to achieve the maximum stroke output. For example, the lifting height h of the scraper portion 13 can be between 10 mm and the diameter of the roller brush 210 (i.e., 2 times the line distance from the ground to the axis of the roller brush 210). In this way, the scraper assembly achieves a greater lifting height of the scraper portion 13, avoiding the problem that large particles are pushed away by the scraper and cannot be entangled; when the roller brush 210 retreats, the driver 31 drives the slider 32 to move forward horizontally through the driving gear 34, thereby pushing the organization portion to rotate counterclockwise, causing the scraper portion 13 to descend. When the first limiting structure 117 on the scraper body 10, that is, the limiting rib, supports the limiting boss 531 of the top cover 53, the scraper portion 13 also touches the ground at the same time, thereby achieving the purpose of scraping the dirt remaining on the ground when the floor scrubber 200 is pulled back, thereby improving the cleaning efficiency.

[0103] In this way, the scraper bar assembly can effectively solve the problem of insufficient movement stroke of the scraper bar portion 13, achieve the cleaning effect of large particles, and has a simple structure, few parts, and low cost. It is an integrated detachable structure with the water storage chamber 543 serving as a clean water tank, which is convenient for cleaning and greatly improves the user experience. Specifically, 1. When moving forward, the scraper bar portion 13 rises, which solves the problem of insufficient movement stroke of the scraper bar portion 13 and the problem that large particles cannot be entangled. 2. When pulling back, the scraper bar portion 13 descends and touches the ground, which solves the problem of residual dirt on the ground after pulling back and improves the cleaning efficiency. 3. The scraper bar body 10 is connected to the upper cover structure 50 with the water storage chamber 543 and can be disassembled and assembled together. Cleaning the scraper bar body 10 and adding water can be completed at one time without separate processing, which greatly improves the user experience.

[0104] The present application also provides a floor scrubber 200, comprising the above-mentioned scraper bar assembly.

[0105] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A scraper bar assembly for a floor scrubber, characterized in that: The scraper strip assembly comprises: A scraper strip body (10) comprises a hard portion (11) and a scraper strip portion (13), wherein the hard portion (11) is configured to be rotatable about a first direction, and during the rotation of the hard portion (11), a first end (111) thereof rises and falls in a height direction of the floor scrubber, and the scraper strip portion (13) is connected to the first end (111); and The driving mechanism (30) is in transmission cooperation with the hard part (11) and is configured to be able to drive the hard part (11) to rotate.

2. The wiper strip assembly according to claim 1, characterized in that: The driving mechanism (30) comprises a driver (31) and a slider (32), wherein the slider (32) cooperates with the hard part (11); the driver (31) is transmission-connected to the slider (32) and is configured to be able to drive the slider (32) to drive the hard part (11) to rotate.

3. The wiper strip assembly according to claim 2, characterized in that: The slider (32) is configured to be able to move along a second direction under the drive of the driver (31); the slider (32) has a matching groove (321), the hard part (11) has a matching shaft (113), the matching shaft (113) is arranged in the matching groove (321), and is configured to be able to rotate around the first direction and move along a third direction in the matching groove (321); wherein the first direction, the second direction and the third direction intersect each other.

4. The wiper strip assembly according to claim 3, characterized in that: The slider (32) has a rack portion (323), the longitudinal direction of the rack portion (323) being arranged along the second direction; the driving mechanism (30) further comprises a driving gear (34), the driving gear (34) being meshed with the rack portion (323) and being transmission-connected to the driver (31).

5. The wiper strip assembly according to claim 4, characterized in that: In the axial direction of the driving gear (34), at least one edge of the rack portion (323) and the driving gear (34) has a guide surface (35).

6. The wiper strip assembly according to any one of claims 2 to 5, characterized in that: The hard portion (11) is configured such that when the hard portion (11) rotates along a first direction, the first end (111) rises, and when the hard portion (11) rotates along a second direction, the first end (111) falls; The driving mechanism (30) further comprises an elastic member (33), wherein the elastic member (33) abuts against the slider (32), and the elastic member (33) is configured to provide a driving force for driving the slider (32) to drive the hard portion (11) to rotate along the first direction, and the driver (31) is configured to at least provide a driving force for driving the slider (32) to drive the hard portion (11) to rotate along the second direction.

7. The wiper strip assembly according to claim 6, characterized in that: The hard portion (11) is in the shape of an arc around a first axis, and the first axis is parallel to the first direction. The hard portion (11) is configured to be rotatable around the first axis, and the first end (111) is an end of the hard portion (11) in the circumferential direction around the first axis.

8. The wiper strip assembly according to claim 6, characterized in that: The scraper strip assembly further comprises an upper cover structure (50), wherein the upper cover structure (50) comprises an interlayer (51) and a projection opening (52), wherein the interlayer (51) comprises an arc-shaped portion (511), and the arc-shaped portion (511) is arranged around the first direction; the hard portion (11) is configured to be at least partially located in the interlayer (51) and capable of sliding along the arc-shaped portion (511); the projection opening (52) is located at one end of the arc-shaped portion (511) in the circumferential direction around the first direction and is connected to the inside and outside of the interlayer (51); and the scraper strip body (10) can be extended and retracted outward from the projection opening (52).

9. The wiper strip assembly according to claim 8, characterized in that: The upper cover structure (50) has a stopper (541), the slider (32) has an assembly groove (325) and a positioning column (327), the assembly groove (325) is extended along the sliding direction of the slider (32), the stopper (541) is located in the assembly groove (325), the elastic member (33) is a spring and is arranged in the assembly groove (325), one end of the elastic member (33) abuts against the stopper (541), and the other end is sleeved on the positioning column (327).

10. The wiper strip assembly according to claim 8, characterized in that: The first end (111) has a first position and a second position in the height direction; The hard part (11) has a first limiting structure (117), the upper cover structure (50) has a limiting boss (531), and the first limiting structure (117) is configured to abut against the limiting boss (531) when the first end (111) is in the first position and generate a limit to block the first end (111) from descending in the height direction; and / or the upper cover structure (50) has a second limiting structure (542), the hard part (11) has an elastic protrusion (119), and the second limiting structure (542) is configured to abut against the elastic protrusion (119) when the first end (111) is in the second position and generate a limit to block the first end (111) from rising in the height direction.

11. The wiper strip assembly according to claim 8, characterized in that: The arc-shaped portion (511) is arranged around the circumference of the roller brush (210) of the floor scrubber, and the extension opening (52) is located at the front side of the roller brush (210) and is arranged downward.

12. The wiper strip assembly according to claim 8, characterized in that: The upper cover structure (50) comprises a top cover (53) and an inner cover (54); the top cover (53) and the inner cover (54) are connected and spaced to form the interlayer (51); the inner cover (54) has a water storage cavity (543) and a water filling level (544).

13. The wiper strip assembly according to claim 12, characterized in that: The upper cover structure (50) has a positioning and matching structure, and is detachably connected to the lower cover structure (220) of the floor scrubber via the positioning and matching structure.

14. The wiper strip assembly according to claim 1, characterized in that: The hard part (11) and the scraper part (13) are integrally formed; and / or the hard part (11) is made of hard rubber material, and the scraper part (13) is made of soft rubber material.

15. A floor scrubber, characterized in that: The invention comprises a wiper strip assembly as claimed in any one of claims 1 to 14.

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