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 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.

[0009] 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.

[0010] In one embodiment, the driving mechanism includes a slider and a driver, the slider cooperates with the hard part; the upper cover structure has a slide groove, and the slider is configured to be able to slide along the slide groove; the driver is transmission-connected to the slider and is configured to be able to drive the slider to drive the hard part to slide along the arc-shaped part.

[0011] 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.

[0012] In one embodiment, the slider has a cam groove, and the driving mechanism also includes a cam, the cam is arranged in the cam groove, the driver is transmission-connected to the cam, and is configured to be able to drive the cam to rotate so as to drive the slider to move through the cam groove.

[0013] In one of the embodiments, the scraper strip body further comprises a rolling element, wherein the rolling element is disposed on the hard portion, and the hard portion slides along the arc portion through the rolling element.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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;

[0018] The driving mechanism includes a driver and an elastic member, both of which cooperate with the hard part, and the driver is configured to provide a driving force to drive the hard part to rotate along the first direction, and the elastic member is configured to provide a driving force to drive the hard part to rotate along the second direction.

[0019] 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.

[0020] In one embodiment, the first end has a first position and a second position in the height direction;

[0021] The hard part has a first limiting structure, and the first limiting structure is configured to generate 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 hard part has a second limiting structure, and the second limiting structure is configured to generate a limit to block the first end from rising in the height direction when the first end is in the second position.

[0022] A floor scrubber comprises the scraper bar assembly mentioned above.

[0023] 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

[0024] 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 creative work.

[0025] 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.

[0026] FIG. 2 is an enlarged structural schematic diagram of the floor scrubber shown in FIG. 1 at point A. FIG.

[0027] FIG3 is a schematic structural diagram of the floor scrubber shown in FIG1 when the scraper bar body is off the ground.

[0028] FIG. 4 is an enlarged structural schematic diagram of the floor scrubber shown in FIG. 3 at point B. FIG.

[0029] FIG. 5 is a schematic structural diagram of the cooperation between the scraper body, the slider and the elastic member in the floor scrubber shown in FIG. 1 .

[0030] FIG. 6 is a schematic diagram of the exploded structure of the floor scrubber shown in FIG. 1 .

[0031] FIG. 7 is another exploded structural schematic diagram of the floor scrubber shown in FIG. 1 .

[0032] FIG8 is a schematic structural diagram of the assembly of the upper cover structure and the scraper body of the floor scrubber shown in FIG1 .

[0033] FIG. 9 is a schematic diagram of the structure of the upper cover structure and the scraper strip body shown in FIG. 8 after the inner cover is hidden.

[0034] FIG. 10 is a schematic structural diagram of the inner cover in the upper cover structure shown in FIG. 8 .

[0035] Description of reference numerals: 100, scraper assembly; 10, scraper body; 11, hard portion; 111, first end; 113, mating shaft; 115, second end; 117, first limiting structure; 118, second limiting structure; 13, scraper portion; 15, rolling element; 30, driving mechanism; 31, driver; 33, elastic member; 35, slider; 351, mating groove; 353, cam groove; 37, cam Wheel; 50, upper cover structure; 51, interlayer; 511, arc-shaped portion; 52, extension port; 53, top cover; 531, slide groove; 533, limiting boss; 54, inner cover; 541, water storage chamber; 543, 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Referring to FIGS. 1 to 5 , a scraper bar assembly 100 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 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.

[0044] In one embodiment, the scraper bar assembly 100 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 100 can also be used in a sweeper, a washer-dryer, etc., which is not specifically limited here.

[0045] 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.

[0046] It can be understood that the first direction (such as the direction perpendicular to the paper in FIG. 1 and the X direction in FIG. 6 ) 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 being parallel to the horizontal plane as an example.

[0047] 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.

[0048] The scraper bar assembly 100 drives the hard part 11 to rotate through the driving mechanism 30, thereby driving the scraper bar part 13 to rise and fall, thereby switching between being off the ground and being 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 100 can increase the lifting height of the scraper bar part 13, so that the height above the ground after it rises is higher, which helps to reduce the probability that particles are pushed away and cannot be sucked in by the roller brush 210.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] In some embodiments, the hard portion 11 is configured such that when the first end 111 is rotated along a first turn around a first direction, the first end 111 rises, and when the hard portion 11 is rotated along a second turn around the first direction, the first end 111 falls.

[0055] The driving mechanism 30 includes a driver 31 and an elastic member 33, both of which cooperate with the hard part 11, and the driver 31 is configured to provide a driving force to drive the hard part 11 to rotate along a first direction, and the elastic member 33 is configured to provide a driving force to drive the hard part 11 to rotate along a second direction. It can be understood that the driver 31 can be but not limited to a motor, and the elastic member 33 can be but not limited to a spring.

[0056] In this way, when the driver 31 is not started, the hard part 11 can rotate under the action of the elastic member 33 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. After the driver 31 is started, the hard part 11 can rotate under the drive thereof until the scraping strip part 13 is off the ground, so that the scraping strip body 10 is in a state of being 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.

[0057] Please refer to FIGS. 6 to 10 . In some embodiments, the scraper assembly 100 further includes an upper cover structure 50, the upper cover structure 50 includes an interlayer 51 and an extension port 52, the interlayer 51 includes 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Furthermore, the scraper strip body 10 further includes a rolling member 15 , which is disposed on the hard portion 11 , and the hard portion 11 slides along the arc portion 511 through the rolling member 15 .

[0064] It can be understood that the rolling element 15 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 15.

[0065] In this way, the rolling element 15 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 .

[0066] 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 541 and a water filling level 543 .

[0067] 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.

[0068] The inner cover 54 is concave to form a water storage chamber 541 , which can be used as a clean water tank to store clean water, and the water filling level 543 is used to add clean water into the water storage chamber 541 .

[0069] In this way, the upper cover mechanism for moving the scraper body 10 is integrated with the water storage chamber 541 as a clean water tank, which can simplify the structure of the floor scrubber 200 and help reduce the number of parts.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] In some embodiments, the driving mechanism 30 further includes a slider 35, and the slider 35 cooperates with the hard part 11. The upper cover structure 50 has a slide groove 531, and the slider 35 is configured to be able to slide along the slide groove 531. The driver 31 is connected to the slider 35 in a transmission manner, and is configured to be able to drive the hard part 11 to slide along the arc portion 511 by driving the slider 35.

[0074] The scraper body 10 , the elastic member 33 and the slider 35 are installed in the interlayer 51 of the upper cover structure 50 , and the top cover 53 forms a sliding groove 531 for guiding the slider 35 to slide.

[0075] In this way, the driver 31 can drive the hard part 11 to rotate through the slider 35 under the guidance of the slide groove 531 .

[0076] Further, the slider 35 is configured to be able to move along the second direction (the Y direction shown in FIG. 1 ) under the drive of the driver 31. The slider 35 has a matching groove 351, and the hard part 11 has a matching shaft 113, which is arranged in the matching groove 351 and is configured to be able to rotate around the first direction and move along the third direction (the Z direction shown in FIG. 1 ) in the matching groove 351. The first direction, the second direction, and the third direction intersect each other.

[0077] It can be understood that the slide groove 531 extends along the second direction. The first direction, the second direction and the third direction can 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.

[0078] 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.

[0079] 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 35 to translate along the second direction to realize the driving of the rotation of the hard part 11.

[0080] Furthermore, the slider 35 also has a cam groove 353 , and the driving mechanism 30 also includes a cam 37 , which is disposed in the cam groove 353 . The driver 31 is connected to the cam 37 and is configured to drive the cam 37 to rotate so as to drive the slider 35 to move through the cam groove 353 .

[0081] The cam 37 and the driver 31 can be mounted on the lower cover structure 220, and the upper cover structure 50 can have an assembly position 545 for assembling the cam 37, so that the cam 37 can pass through the assembly position 545 and cooperate with the slider 35. The cam 37 can have a linkage state in which it abuts against the groove wall of the cam groove 353 and a linkage disconnection state in which it is separated from the groove wall. In the linkage state, the cam 37 can rotate to apply an external force through the groove wall to drive the slider 35 to move in the slide groove 531. In the non-linkage state, the scraper body 10 returns to the initial state under the drive of the elastic member 33. In addition, the groove wall of the cam groove 353 abutted by the cam 37 in the linkage state can be configured to be inclined relative to the second direction.

[0082] It can be understood that the rotation axis of the cam 37 is perpendicular to the second direction. When the cam 37 rotates to the linkage state and contacts the groove wall of the cam groove 353, it continues to rotate and the distance between the position where it contacts the groove wall of the cam groove 353 relative to its own rotation axis in the second direction continuously changes, thereby pushing the slider 35 to slide in the second direction.

[0083] In this way, the driver 31 can drive the cam 37 to rotate to push the slider 35 to slide along the second direction, thereby achieving continuous and smooth driving of the hard portion 11 through the slider 35 .

[0084] In some embodiments, the first end 111 has a first position and a second position in the height direction. The hard portion 11 has a first limiting structure 117, which is configured 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 hard portion 11 has a second limiting structure 118, which is configured 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).

[0085] 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.

[0086] Specifically, when the first end 111 is in the first position, the first limiting structure 117 abuts against the inner edge of the limiting boss 533 at the extension opening 52, and when the first end 111 is in the second position, the second limiting structure 118 abuts against the outer edge of the limiting boss 533 at the extension opening 52. The first limiting structure 117 may be a limiting rib.

[0087] 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 118, so that the lifting and lowering range is determined.

[0088] For ease of understanding, the installation process of the scraper strip assembly 100 is briefly described below:

[0089] 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 top cover 53, and then the spring as the elastic member 33 is installed, with one end of the spring against the scraper body 10 and the other end against the top cover 53. Then the slider 35 is installed, one end of the slider 35 has a matching groove 351 and is used to snap into the matching shaft 113 of the hard part 11, and the other end of the slider 35 is installed in the slide groove 531 of the top cover 53, and finally the inner cover 54 is closed, and the inner cover 54 is provided with a water storage chamber 541 and a water filling level 543. After the upper cover structure 50 is assembled, the scraper body 10 is in the extended state by default under the action of the spring, that is, the scraper part 13 drops to a ground-contacting position. The driver 31 and the cam 37 are both assembled on the lower cover structure 220. When the upper cover structure 50 is mounted on the lower cover structure 220, the cam 37 is inserted into the cam groove 353 of the slider 35. For easy assembly, the cam 37 has a gap with the cam groove 353 in the default state, and no linkage is generated. The cam 37 is only rotated and linked when the driver 31 is powered on. At the same time, the upper cover structure 50 is provided with a buckle position and a joint 552, which are respectively fixedly matched with the buckle position and the docking hole 222 of the docked lower cover structure 220, and finally the upper cover structure 50 and the lower cover structure 220 are detachably fixed, and the disassembly and assembly are convenient.

[0090] The scraper assembly 100, wherein the scraper body 10 as the front scraper and the water storage chamber 541 as the clean water tank are integrated in the detachable upper cover structure 50, when used by the user, the scraper can be cleaned and water can be added at one time without separate processing, which greatly improves the user experience.

[0091] Specifically, the working process of the scraper assembly 100 is as follows: when the roller brush 210 moves forward, the driver 31 starts to rotate, and drives the slider 35 to move backward horizontally through the cam 37, thereby pulling the hard part 11 to rotate clockwise and driving the scraper part 13 to rise, and the rising height h is 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), so as to achieve a larger lifting height and avoid the problem that large particles are pushed away by the scraper and cannot be entangled; when the roller brush 210 moves backward, the driver 31 returns to the initial state, at which time, the cam 37 does not effectively support the slider 35, and is in a disconnected state with the slider 35. At the same time, the hard part 11 rotates counterclockwise under the action of the spring, pulling the slider 35 to move forward horizontally, and when the first limiting structure 117 on the scraper body 10 supports the limiting boss 533 of the top cover 53 structure at the extension port 52, the scraper part 13 touches the ground, thus solving the problem of residual dirt on the ground after pulling back and improving the cleaning efficiency.

[0092] In this way, the scraper bar assembly 100 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 541 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 541 and can be disassembled and assembled together, which is convenient for cleaning and improves the user experience.

[0093] The present application also provides a floor scrubber 200 , comprising the scraper bar assembly 100 described above.

[0094] 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.

[0095] 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 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.

3. The wiper strip assembly according to claim 2, 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).

4. The wiper strip assembly according to claim 3, characterized in that: The driving mechanism (30) comprises a slider (35) and a driver (31), the slider (35) being matched with the hard part (11); the upper cover structure (50) having a slide groove (531), the slider (35) being configured to be able to slide along the slide groove (531); The driver (31) is drivingly connected to the slider (35), and is configured to be able to drive the slider (35) to drive the hard portion (11) to slide along the arc-shaped portion (511).

5. The wiper strip assembly according to claim 4, characterized in that: The slider (35) is configured to be able to move along the second direction under the drive of the driver (31); the slider (35) has a matching groove (351), the hard part (11) has a matching shaft (113), the matching shaft (113) is arranged in the matching groove (351), and is configured to be able to rotate around the first direction and move along the third direction in the matching groove (351); wherein the first direction, the second direction and the third direction intersect each other.

6. The wiper strip assembly according to claim 4, characterized in that: The slider (35) has a cam groove (353), the driving mechanism (30) further comprises a cam (37), the cam (37) is arranged in the cam groove (353), the driver (31) is connected to the cam (37) in a transmission manner, and is configured to be able to drive the cam (37) to rotate so as to drive the slider (35) to move through the cam groove (353).

7. The wiper strip assembly according to claim 3, characterized in that: The scraper strip body (10) further comprises a rolling member (15), wherein the rolling member (15) is arranged on the hard portion (11), and the hard portion (11) slides along the arc portion (511) via the rolling member (15).

8. The wiper strip assembly according to any one of claims 3 to 7, 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.

9. The wiper strip assembly according to any one of claims 3 to 7, 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 (541) and a water filling level (543).

10. The wiper strip assembly according to claim 9, 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.

11. The wiper strip assembly according to claim 1, 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) comprises a driver (31) and an elastic member (33), wherein the driver (31) and the elastic member (33) are both matched with the hard portion (11), and the driver (31) is configured to provide a driving force for driving the hard portion (11) to rotate along the first direction, and the elastic member (33) is configured to provide a driving force for driving the hard portion (11) to rotate along the second direction.

12. 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.

13. The wiper strip assembly according to claim 1, characterized in that: The first end (111) has a first position and a second position in the height direction; The hard portion (11) has a first limiting structure (117), and the first limiting structure (117) is configured to 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; and / or the hard portion (11) has a second limiting structure (118), and the second limiting structure (118) is configured to 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.

14. A floor scrubber, characterized in that: The invention comprises a wiper strip assembly as claimed in any one of claims 1 to 13.

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